Commit Graph

63269 Commits

Author SHA1 Message Date
Pawel Jakub Dawidek
ffe54ff0ec MFp4: Synchronize with recent OpenSolaris changes. 2007-04-08 16:29:25 +00:00
Kip Macy
db2faf119f add busdma function for mapping mbuf iovecs
change m_collapse to return an error code
2007-04-08 15:59:07 +00:00
Pawel Jakub Dawidek
425d75486e - Use 'name=value' so it can be properly recognized by devd(8).
- Use only subclass as devd's type.
2007-04-08 15:55:48 +00:00
Søren Schmidt
cd945eed47 Dont zero out 64BIT flag on DMA ops. 2007-04-08 15:31:39 +00:00
Kip Macy
27f0ce0f2b hook uipc_mvec.c into build 2007-04-08 15:18:03 +00:00
Kip Macy
c0a24dd4aa Convert driver RX path over to using mbuf iovec 2007-04-08 15:04:19 +00:00
Kip Macy
a8d9a363f5 Add driver private mbuf iovec support routines 2007-04-08 14:56:16 +00:00
Pawel Jakub Dawidek
c2cda60911 prison_free() can be called with a mutex held. This wasn't a problem until
I converted allprison_mtx mutex to allprison_lock sx lock. To fix this LOR,
move prison removal to prison_complete() entirely. To ensure that noone
will reference this prison before it's beeing removed from the list skip
prisons with 'pr_ref == 0' in prison_find() and assert that pr_ref has to
greater than 0 in prison_hold().

Reported by:	kris
OK'ed by:	rwatson
2007-04-08 10:46:23 +00:00
Pawel Jakub Dawidek
61cfeccd58 Take vnode pointer and hold it under znode lock, so we won't race with
zfs_reclaim(). This may or may not fix problem reported by kris, but it's
definiatelly better that way.
2007-04-08 10:29:14 +00:00
Pawel Jakub Dawidek
b63b0c6529 Only use prison mutex to protect the fields that need to be protected by it. 2007-04-08 10:21:38 +00:00
Ariff Abdullah
319276aac0 Disable cmi_midiattach(). The implementation is incomplete, and causing
various interesting memory leak issues.
2007-04-08 07:52:27 +00:00
Pawel Jakub Dawidek
264de85e73 pr_list is protected by the allprison_lock. 2007-04-08 02:13:32 +00:00
Pawel Jakub Dawidek
3dc4488c91 Move atomic.S files to directories that better fit OpenSolaris directory
layout.
2007-04-07 23:54:54 +00:00
Pawel Jakub Dawidek
e321494eca Fix libzpool compilation.
Reported by:	des
2007-04-07 23:47:14 +00:00
Pawel Jakub Dawidek
9a691cb33a Limit the number of system taskq threads to the number of CPUs.
They are only used when there is a need for reducing namecache.

Observed by:	kris, csjp
2007-04-07 21:41:11 +00:00
Scott Long
1eba4c7948 Add the CAM 'SG' peripheral device. This device implements a subset of the
Linux SCSI SG passthrough device API.  The intention is to allow for both
running of Linux apps that want to talk to /dev/sg* nodes, and to facilitate
porting of apps from Linux to FreeBSD.  As such, both native and linuxolator
entry points and definitions are provided.

Caveats:
 - This does not support the procfs and sysfs nodes that the Linux SG
   driver provides.  Some Linux apps may rely on these for operation,
   others may only use them for informational purposes.
 - More ioctls need to be implemented.
 - Linux uses a naming scheme of "sg[a-z]" for devices, while FreeBSD uses a
   scheme of "sg[0-9]".  Devfs aliasis (symlinks) are automatically created
   to link the two together.  However, tools like camcontrol only see the
   native names.
 - Some operations were originally designed to return byte counts or other
   data directly as the syscall return value.  The linuxolator doesn't appear
   to support this well, so this driver just punts for these cases.

Now that the driver is in place, others are welcome to add missing
functionality.  Thanks to Roman Divacky for pushing this work along.
2007-04-07 19:40:58 +00:00
Dag-Erling Smørgrav
48be553b82 Build ZFS on amd64 and pc98.
Approved by:	pjd@
2007-04-07 19:12:10 +00:00
Dag-Erling Smørgrav
29665eac3f Fix some type mismatches.
Reviewed by:	pjd@
2007-04-07 19:11:41 +00:00
Pawel Jakub Dawidek
639fdcd852 Allow to tune maximum and minimum memory used by ARC. 2007-04-07 19:10:50 +00:00
Pawel Jakub Dawidek
2b6271b7f2 Hide SEEK_DATA and SEEK_HOLE under __BSD_VISIBLE.
Suggested by:	ache
2007-04-07 18:31:40 +00:00
Matt Jacob
7b88fb86e3 Hide bus reset announcements within bootverbose.
MFC after:	3 days
2007-04-07 18:15:52 +00:00
Pawel Jakub Dawidek
f3fdfb670c - Remove SEEK_DATA and SEEK_HOLE from stdio.h, they don't belong here.
- Only define SEEK_DATA and SEEK_HOLE in sys/unistd.h when neither
  _POSIX_SOURCE nor _XOPEN_SOURCE is defined.

Pointed out by:	bde, ache
2007-04-07 16:02:30 +00:00
Yoshihiro Takahashi
55ccb0b485 Fix build. 2007-04-07 13:37:45 +00:00
Pawel Jakub Dawidek
a583dae953 Add missing mutex_init() which was causing assertion panic when on clone
destruction.

Reported by:	kris
2007-04-07 11:04:37 +00:00
Paolo Pisati
c326cd0e62 Prevent the usage of an uninitialized variable: do not accept
StartMediaTx message before an OpnRcvChnAck message was received.

Reviewed by:	glebius
Approved by:	glebius (mentor)
MFC after:      3 days
Found with:	Coverity Prevent(tm)
CID:		498
2007-04-07 09:52:36 +00:00
Paolo Pisati
f4296f2246 Silence Coverity about an unused variable.
Reviewed by: 	glebius
Approved by: 	glebius (mentor)
MFC after: 	3 days
CID: 		538
2007-04-07 09:47:39 +00:00
KATO Takenori
f2a081cfe4 Added the IPLware 3.33 support.
- Added magic numbers to pretend the NEC original program version
    2.70.
  - Added string display routine with Shift-JIS code support.
  - Added three nop instructions at start1 in start.s since the
    installaer of the IPLware put 'call $0x09ab' instruction.
  - Put the near return instruction at 0x9ab in selector.s.

Since the Shit-JIS display routine must be located at 0x1243, the
linker script file (ldscript) is applied.
2007-04-07 08:37:04 +00:00
Kip Macy
d330ae533a back out last change
Requested by: ru
2007-04-07 05:09:40 +00:00
Hidetoshi Shimokawa
54911451d5 Fix a bug for over 4GB media.
MFC after: 3 days
2007-04-07 02:52:13 +00:00
Robert Watson
7b20aa9ca6 Remove XXX comment that changes to file fields should be protected with
the file lock rather than the filedesc lock: I fixed this in the last
revision.

Spotted by:	kris
2007-04-06 23:31:30 +00:00
Alexander Kabaev
7d80a3b493 pc98 boot2 is compiled with _KERNEL defined, and that makes non-static
bootinfo variable declaration visible. It conflicts with static
declaration in this file. Declare variable as globally visible in
order to resolve the conflict.
2007-04-06 20:50:24 +00:00
Jung-uk Kim
6e612eca81 Fix kernel module dependency. linprocfs depends on sysvmsg and sysvsem.
Submitted by:	nork
2007-04-06 18:15:56 +00:00
Ruslan Ermilov
2e137367b4 Add the PG_NX support for i386/PAE.
Reviewed by:	alc
2007-04-06 18:15:03 +00:00
Søren Schmidt
fe2fb53542 Add 64bit addressing support to SiI 3132/3124 2007-04-06 17:36:35 +00:00
Søren Schmidt
2cfcfef1fc Remove debug gunk. 2007-04-06 16:21:34 +00:00
Søren Schmidt
16194fc40b Add support for 64bit addressing to AHCI and Marvell controllers.
Munged into ATA shape and Marvell specifics my yours truely.

Submitted by: jhb
2007-04-06 16:18:59 +00:00
Pawel Jakub Dawidek
68474f1930 Sysctl description is not a format string, so one % is enough. 2007-04-06 12:53:54 +00:00
Yoshihiro Takahashi
bc30e6ae00 MFi386: add libkern/memset.c 2007-04-06 11:30:31 +00:00
Yoshihiro Takahashi
9f94082ed0 sort. 2007-04-06 11:29:52 +00:00
Pawel Jakub Dawidek
93caf77f95 Use strcasecmp() from libkern. 2007-04-06 11:21:01 +00:00
Pawel Jakub Dawidek
4d00f78b40 We have strcasecmp() in libkern now. 2007-04-06 11:18:57 +00:00
Kip Macy
735d79b8df make modules compile without updating etc 2007-04-06 06:05:45 +00:00
Alexander Kabaev
89c40e5fec Be more conservative and compile libkern/memset.c only on architectures
than need it. These are i386, amd64 and powerpc so far.
2007-04-06 04:51:50 +00:00
Pawel Jakub Dawidek
ba7c08b71b Bump __FreeBSD_version on ZFS import.
Requested by:	nork
2007-04-06 02:33:43 +00:00
Pawel Jakub Dawidek
ceef0c312c Connect ZFS to the build. 2007-04-06 02:13:30 +00:00
Pyun YongHyeon
ad6d01d151 If we've encountered unrecognized chipset don't access hardware
anymore. Previously it tried to access interrupt register to disable
interrupts which could result in hang if the hardware was not
properly initialized by system BIOS/ACPI.

Tested by:	Benjamin Hansmann (benjamin.hansmann AT rub dot de)
MFC after:	3 days
2007-04-06 02:02:07 +00:00
Pawel Jakub Dawidek
2109a92fd1 Add Makefile for zfs.ko kernel module. 2007-04-06 01:35:16 +00:00
Pawel Jakub Dawidek
e726fc7c37 Add ZFS-specific privileges. 2007-04-06 01:11:39 +00:00
Pawel Jakub Dawidek
f0a75d274a Please welcome ZFS - The last word in file systems.
ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.

I'd like to thank all SUN developers that created this great piece of software.

Supported by:	Wheel LTD (http://www.wheel.pl/)
Supported by:	The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by:	Sentex (http://www.sentex.net/)
2007-04-06 01:09:06 +00:00
Alexander Kabaev
c8c0ba192e Add local ptototype for memset function. 2007-04-06 00:06:26 +00:00
Pawel Jakub Dawidek
028e84c68b allprison mutex was converted to sx(9) lock. 2007-04-05 23:32:32 +00:00
Pawel Jakub Dawidek
dc68a63332 Implement functionality I called 'jail services'.
It may be used for external modules to attach some data to jail's in-kernel
structure.

- Change allprison_mtx mutex to allprison_sx sx(9) lock.
  We will need to call external functions while holding this lock, which may
  want to allocate memory.
  Make use of the fact that this is shared-exclusive lock and use shared
  version when possible.
- Implement the following functions:
  prison_service_register() - registers a service that wants to be noticed
	when a jail is created and destroyed
  prison_service_deregister() - deregisters service
  prison_service_data_add() - adds service-specific data to the jail structure
  prison_service_data_get() - takes service-specific data from the jail
	structure
  prison_service_data_del() - removes service-specific data from the jail
	structure

Reviewed by:	rwatson
2007-04-05 23:19:13 +00:00
Alexander Kabaev
616db5f04c Add trivial MI memset function implementation. GCC mandates the
existence of this function as a linkable symbol in standalone
configurations and existing inline memcpy from libkern.h fails
this requirement.
2007-04-05 22:02:39 +00:00
Pawel Jakub Dawidek
54b369c1ae Make prison_find() globally accessible. 2007-04-05 21:34:54 +00:00
Pawel Jakub Dawidek
f6521d1c31 Implement SEEK_DATA and SEEK_HOLE extensions to lseek(2) as found in
OpenSolaris. For more information please refer to:

	http://blogs.sun.com/bonwick/entry/seek_hole_and_seek_data
2007-04-05 21:10:53 +00:00
Pawel Jakub Dawidek
f3a8d2f93c Add security.jail.mount_allowed sysctl, which allows to mount and
unmount jail-friendly file systems from within a jail.
Precisely it grants PRIV_VFS_MOUNT, PRIV_VFS_UNMOUNT and
PRIV_VFS_MOUNT_NONUSER privileges for a jailed super-user.
It is turned off by default.

A jail-friendly file system is a file system which driver registers
itself with VFCF_JAIL flag via VFS_SET(9) API.
The lsvfs(1) command can be used to see which file systems are
jail-friendly ones.

There currently no jail-friendly file systems, ZFS will be the first one.
In the future we may consider marking file systems like nullfs as
jail-friendly.

Reviewed by:	rwatson
2007-04-05 21:03:05 +00:00
Pawel Jakub Dawidek
0f2c2ce0a3 When KVA is exhausted, try the vm_lowmem event for the last time before
panicing. This helps a lot in ZFS stability.
2007-04-05 20:52:51 +00:00
Pawel Jakub Dawidek
fcdd9721e4 Fix a problem for file systems that don't implement VOP_BMAP() operation.
The problem is this: vm_fault_additional_pages() calls vm_pager_has_page(),
which calls vnode_pager_haspage(). Now when VOP_BMAP() returns an error (eg.
EOPNOTSUPP), vnode_pager_haspage() returns TRUE without initializing 'before'
and 'after' arguments, so we have some accidental values there. This bascially
was causing this condition to be meet:

	if ((rahead + rbehind) >
	    ((cnt.v_free_count + cnt.v_cache_count) - cnt.v_free_reserved)) {
		pagedaemon_wakeup();
		[...]
	}

(we have some random values in rahead and rbehind variables)

I'm not entirely sure this is the right fix, maybe we should just return FALSE
in vnode_pager_haspage() when VOP_BMAP() fails?

alc@ knows about this problem, maybe he will be able to come up with a better
fix if this is not the right one.
2007-04-05 20:49:46 +00:00
Pawel Jakub Dawidek
24c3c19e73 Hide lbolt under _SOLARIS_C_SOURCE in preparation for ZFS import.
I really couldn't avoid this with preprocessor magic.
2007-04-05 20:40:47 +00:00
Marcel Moolenaar
9760f68ca0 Add PCI IDs for the HP RMP3 serial port. This is often used as
the serial console.

MFC after: 1 week
2007-04-05 19:15:46 +00:00
Alexander Kabaev
b27c252dcf Remove extern struct pcb stoppcbs[] declaration from this file.
It breaks GCC 4.1 compiles and does not appear to be required.
2007-04-05 18:34:11 +00:00
Dag-Erling Smørgrav
56c62ab69c Whitespace nits. 2007-04-05 13:43:00 +00:00
Kip Macy
0f4d9d04ea Fix mb_ctor_clust and mb_dtor_clust to reference the appropriate zone,
simplify setting refcnt

Reviewed by: andre, rwatson, and glebius
MFC after: 3 days
2007-04-04 21:27:01 +00:00
Andre Oppermann
995a77176f Add INP_INFO_UNLOCK_ASSERT() and use it in tcp_input(). Also add some
further INP_INFO_WLOCK_ASSERT() while there.
2007-04-04 18:30:16 +00:00
Andre Oppermann
0c38fd0a7a Move last tcpcb initialization for the inbound connection case from
tcp_input() to syncache_socket() where it belongs and the majority
of it already happens.

The "tp->snd_up = tp->snd_una" is removed as it is done with the
tcp_sendseqinit() macro a few lines earlier.
2007-04-04 16:13:45 +00:00
Andre Oppermann
beaa515e95 Some local and style(9) cleanups. 2007-04-04 15:30:31 +00:00
Andre Oppermann
5dd9dfefd6 Retire unused TCP_SACK_DEBUG. 2007-04-04 14:44:15 +00:00
Andre Oppermann
b728e90260 In tcp_dooptions() skip over SACK options if it is a SYN segment. 2007-04-04 14:39:49 +00:00
Robert Watson
5e3f7694b1 Replace custom file descriptor array sleep lock constructed using a mutex
and flags with an sxlock.  This leads to a significant and measurable
performance improvement as a result of access to shared locking for
frequent lookup operations, reduced general overhead, and reduced overhead
in the event of contention.  All of these are imported for threaded
applications where simultaneous access to a shared file descriptor array
occurs frequently.  Kris has reported 2x-4x transaction rate improvements
on 8-core MySQL benchmarks; smaller improvements can be expected for many
workloads as a result of reduced overhead.

- Generally eliminate the distinction between "fast" and regular
  acquisisition of the filedesc lock; the plan is that they will now all
  be fast.  Change all locking instances to either shared or exclusive
  locks.

- Correct a bug (pointed out by kib) in fdfree() where previously msleep()
  was called without the mutex held; sx_sleep() is now always called with
  the sxlock held exclusively.

- Universally hold the struct file lock over changes to struct file,
  rather than the filedesc lock or no lock.  Always update the f_ops
  field last. A further memory barrier is required here in the future
  (discussed with jhb).

- Improve locking and reference management in linux_at(), which fails to
  properly acquire vnode references before using vnode pointers.  Annotate
  improper use of vn_fullpath(), which will be replaced at a future date.

In fcntl(), we conservatively acquire an exclusive lock, even though in
some cases a shared lock may be sufficient, which should be revisited.
The dropping of the filedesc lock in fdgrowtable() is no longer required
as the sxlock can be held over the sleep operation; we should consider
removing that (pointed out by attilio).

Tested by:	kris
Discussed with:	jhb, kris, attilio, jeff
2007-04-04 09:11:34 +00:00
Xin LI
04533fc68e Use *_EMPTY macros when appropriate. 2007-04-04 07:29:53 +00:00
Kip Macy
fa0521c0e9 Make DMA tags per-queue to facilate parallel mappings
Defer mbuf allocation and initialization until after data has already been
received in a cluster

This reduces cpu utilization somewhat, but it only improves the rx path.
Recent changes to TCP appear to make us rate limited by the TX path.

This is the first step in reducing mbuf management overhead for manipulating
clusters.

MFC after: 3 days
2007-04-04 05:29:18 +00:00
Kip Macy
e0bfe940a4 m_extadd does not appear to do the right thing for the case of clusters
allocated from UMA - add m_cljset to correspond to m_cljget

MFC after: 3 days
2007-04-04 04:08:57 +00:00
Alexander Kabaev
edb2e5dca3 Include string.h for non-kernel builds to get proper memcpy prototype. 2007-04-04 03:16:59 +00:00
Alexander Kabaev
d8164209b3 Include string.h for non-kernel builds to get proper strcpy, strlen
prototypes.
2007-04-04 03:14:15 +00:00
Alexander Kabaev
9160afee7c Do not assign result of (char *) cast to u_char * variable. 2007-04-04 03:10:42 +00:00
Kip Macy
ab43ffd2f6 add helper functions for mapping size to zonez and types
eliminate duplicated zone lookup switch statements
2007-04-04 00:31:49 +00:00
Kip Macy
59a31e6acf fix typo 2007-04-04 00:11:22 +00:00
Kip Macy
e2bc106690 style fixes and make sure that the lock is treated as released in the sharers == 0 case
not that this is somewhat racy because a new sharer can come in while we're updating stats
2007-04-04 00:01:05 +00:00
Kip Macy
afc0bfbd90 Fixes to sx for newsx - fix recursed case and move out of inline
Submitted by: Attilio Rao <attilio@freebsd.org>
2007-04-03 22:58:21 +00:00
Kip Macy
70fe8436c8 move lock_profile calls out of the macros and into kern_mutex.c
add check for mtx_recurse == 0 when releasing sleep lock
2007-04-03 22:52:31 +00:00
Julian Elischer
1bd69ee131 Since we switched to using monatomically increasing timestamps,
they have been reported back to the userland as being in 1970.
Add boot time to the timestamp to give the time in the scale of the 'current'
real timescale.  Not perfect if you change the time a lot but good enough
to keep all the rules correct relative to each other correct in terms
of time relative to "now".
2007-04-03 22:45:50 +00:00
Kip Macy
8289600ce7 skip call to _lock_profile_obtain_lock_success entirely if acquisition time is non-zero
(i.e. recursing or adding sharers)
2007-04-03 18:36:27 +00:00
Alexander Kabaev
585b090609 Add dl_iterate_phdr function prototype and corresponding dl_phdr_info
structure definition.
2007-04-03 18:33:41 +00:00
Kip Macy
802d9610eb Remove unneccessary LO_CONTESTED flag 2007-04-03 17:57:50 +00:00
Robert Watson
6246c6e2a7 Fix use after free bug: use temporary variable to hold next entry in linked
list while freeing current entry, rather than using the free'd entry's next
pointer.

Found with:	Coverity Prevent(tm)
CID:		1333
2007-04-03 12:45:10 +00:00
Pawel Jakub Dawidek
afd894bb12 Add root_mount_wait() function which can be used to wait until the root
file system is mounted. This is useful for kernel modules loaded from
/boot/loader.conf, that have to access file system.
2007-04-03 11:45:28 +00:00
Randall Stewart
bff64a4db3 - fixed several places where we did not release INP locks.
- fixed a refcount bug in the new ifa structures.
- use vrf's from default stcb or inp whenever possible.
- Address limits raised to account for a full IP fragmented
  packet (1000 addresses).
- flight size correcting updated to include one message only
  and to handle case where the peer does not cumack the
  next segment aka lists 1/1 in sack blocks..
- Various bad init/init-ack handling could cause a panic
  since we tried to unlock the destroyed mutex. Fixes
  so we properly exit when we need to destroy an assoc.
  (Found by Cisco DevTest team :D)
- name rename in src-addr-selection from pass to sifa.
- route structure typedef'd to allow different platforms
  and updated into sctp_os_bsd file.
- Max retransmissions a chunk can be made added.
Reviewed by:	gnn
2007-04-03 11:15:32 +00:00
Andrew Gallatin
e39a0a37cf - Fix a bug in the TSO transmit routine where frames which had
been defragged and had their headers in the same cluster as their
payload would be fed to the NIC in header-sized chunks, and would
likely exceed the number of available transmit descriptors.

- If a TSO frame exceeds the number of available transmit descriptors,
don't leak busdmma resources when freeing it.

Sponsored by: Myricom Inc.
2007-04-03 10:41:33 +00:00
Kevin Lo
6d361569d5 Since the driver uses mutexes, remove splusb() and splx(). 2007-04-03 05:59:17 +00:00
Alexander Kabaev
02b71ede34 Correct PT_GNU_EH_FRAME definition. 2007-04-03 01:47:07 +00:00
Marcel Moolenaar
35777a2a79 Don't use a time-limiting loop that's defined in terms of the baudrate
in the putc() method.  Likewise, in the getc() method, don't check for
received characters with an interval defined in terms of the baudrate.
In both cases it works equally well to implement a fixed delay.  More
importantly, it avoids calculating a delay that's roughly 1/10th the
time it takes to send/receive a character. The calculation is costly
and happens for every character sent or received, affecting low-level
console or debug port performance significantly. Secondly, when the
RCLK is not available or unreliable, the delays could disrupt normal
operation.

The fixed delay is 1/10th the time it takes to send a character at
230400 bps.
2007-04-03 01:21:10 +00:00
Marcel Moolenaar
f8100ce2a7 Don't expose the uart_ops structure directly, but instead have
it obtained through the uart_class structure. This allows us
to declare the uart_class structure as weak and as such allows
us to reference it even when it's not compiled-in.
It also allows is to get the uart_ops structure by name, which
makes it possible to implement the dt tag handling in uart_getenv().
The side-effect of all this is that we're using the uart_class
structure more consistently which means that we now also have
access to the size of the bus space block needed by the hardware
when we map the bus space, eliminating any hardcoding.
2007-04-02 22:00:22 +00:00
Warner Losh
cf5bdd4446 Loop on sdcard init. This helps if one hasn't plugged in the card
fast enough, or there's other issues that cause the first try to fail.
2007-04-02 20:26:04 +00:00
John Baldwin
1ce2bc9187 Fix a fd leak in socketpair():
- Close the new file objects created during socketpair() if the copyout of
  the new file descriptors fails.
- Add a test to the socketpair regression test for this edge case.
2007-04-02 19:15:47 +00:00
Jung-uk Kim
0a55a034ba Enable MSI support on RELENG_6.
MFC after:	3 days
2007-04-02 19:09:06 +00:00
Jung-uk Kim
357afa7113 MFP4: Turn emul_lock into a mutex.
Submitted by:	rdivacky
2007-04-02 18:38:13 +00:00
John Baldwin
ddda35b8f6 - Split out the part of SYSCALL_MODULE_HELPER() that builds a 'struct
sysent' for a new system call into a new MAKE_SYSENT() macro.
- Use MAKE_SYSENT() to build a full sysent for the nfssvc system call in
  the NFS server and use syscall_register() and syscall_deregister() to
  manage the nfssvc system call entry instead of manually frobbing the
  sysent[] array.
2007-04-02 13:53:26 +00:00
John Baldwin
ebb3c22c16 Don't go to a whole lot of extra work to handle the race where the new
file descriptor is closed out from under us in kern_open().  This race
is already handled and the file will be closed when kern_open() does an
fdrop just before returning.
2007-04-02 13:40:38 +00:00
Ariff Abdullah
f505e02090 Revert busy refcount back to int. As a side note, multiple open
is still (and always) possible and does not change previous behaviour.

Requested by:	netchild
2007-04-02 10:24:15 +00:00
Ariff Abdullah
ff7499570c Disable seq_modevent(). The implementation is incomplete, and causing
memory leak during unload.
2007-04-02 06:03:47 +00:00
Pyun YongHyeon
75a1d5a086 Use our own timer for watchdog instead of if_watchdog/if_timer
interface.
2007-04-02 04:43:41 +00:00
Ariff Abdullah
3627e77dfa No need to track every closing instance, and put busy counter to rest
in its single bit coffin.
2007-04-02 03:46:25 +00:00
Scott Long
15735bec61 Freeze the simq, not the devq, if we run out of command slots. This fixes
the last round of reported instability in the rev 13/14 driver.

Approved by: Erich Chen
2007-04-02 03:31:37 +00:00
Ariff Abdullah
a9be51acfe Provide hint / tunable for possible asynchronous USB execution. Async
execution should help us avoiding potential deadlock and illegal locking
while sleeping in various mixer -> usb calls. To enable it, use
hint.uaudio.%d.async="1" or sysctl dev.uaudio.%d.async=1. Default is
disable, to remain compatible with old behaviour (with slight risk of
potential deadlock).
2007-04-02 03:25:39 +00:00
Ariff Abdullah
72e9d07fbf - Don't wakeup() unnecessarily, so the behavior of dead interrupt or
stalled DMA engine can be observed and predicted.
- Minor sysctl/tunable cleanup.
2007-04-02 03:03:06 +00:00
Matt Jacob
9a1b0d43c2 Temporarily desupport simultaneous target and initiator mode.
When the linux port changes were imported which split the
target command list to be separate from the initiator command
list and the handle format changed to encode a type in the handle
the implications to the function isp_handle_index (which only
the NetBSD/OpenBSD/FreeBSD ports use) were overlooked.

The fault is twofold: first, the index into the DMA maps
in  isp_pci is wrong because a target command handle with
the type bit left in place caused a bad index (and panic)
into dma map. Secondly, the assumption of the array
of DMA maps in either PCS or SBUS attachment structures is
that there is a linear mapping between handle index and
DMA map index. This can no longer be true if there are
overlapping index spaces for initiator mode and target
mode commands.

These changes bandaid around the problem by forcing us
to not have simultaneous dual roles and doing the appropriate
masking to make sure things are indexed correctly. A longer
term fix is being devloped.
2007-04-02 01:04:20 +00:00
Alexander Leidinger
02da6fa190 Handle errors from bus_setup_intr().
Found by:	Coverity Prevent (tm)
CID:		1066
2007-04-01 16:55:31 +00:00
Alexander Leidinger
68af68014e Tell the user when the setup of the interrupt handler failed and return
an error.

Found by:	Coverity Prevent (tm)
CID:		71-78
2007-04-01 16:52:54 +00:00
Wojciech A. Koszek
4850546f51 ng_node and ng_worklist locks both migrated from being spinning locks to
adaptive mutexes. Let witness(4) calm down and bring proper types of those
locks to the lock order database.

Glanced at by:	rwatson
2007-04-01 15:48:10 +00:00
Pawel Jakub Dawidek
4874b3fb12 More style nits. 2007-04-01 15:40:56 +00:00
Alexander Leidinger
c9be0e5d4d Tell a statistic checker that not checking the return value of the probing
of the mii phy is intended for this chip.

Found by:	Coverity Prevent (tm)
CID:		43
2007-04-01 14:15:26 +00:00
Alexander Leidinger
2acfcc2d4c Make it obvious that we don't care about the return value of
usbd_endpoint_count(), the failure case is handled implicit in the
following code.

Found by:	Coverity Prevent (tm)
CID:		56
2007-04-01 13:46:39 +00:00
Pawel Jakub Dawidek
daa88cdf0a Style nit. 2007-04-01 13:41:10 +00:00
Pawel Jakub Dawidek
5c1c2e82e2 I think the code I'm removing here is completely bogus.
vfs_flags field is used for VFCF_* flags which are given at file system
driver creation time (via VFS_SET(9)) macro.

What this code did was bascially this:

If file system registers itself with VFCF_UNICODE flag (stores file names
as Unicode), it will gain MNT_SOFTDEP flag (UFS soft-updates).

If file system registers itself with VFCF_LOOPBACK flag (aliases some other
mounted FS), it will gain MNT_SUIDDIR flag (special handling of SUID on
dirs).

The latter will be quite dangerous, but those flags are reset later in
vfs_domount().

MFC after:	1 month
2007-04-01 13:08:05 +00:00
Craig Rodrigues
3b1b4d767f Change #include <machine/pcpu.h> to #include <sys/pcpu.h>
to get definition of curthread, required by <sys/sx.h>.
2007-04-01 12:48:10 +00:00
Robert Watson
af940ed8c0 If nooption SMP on powerpc, also nooption ADAPTIVE_SX, which depends on
SMP and is now in the global NOTES.
2007-04-01 11:10:16 +00:00
Pawel Jakub Dawidek
def72fbba1 Now that the vdropl() function is public, assert that the vnode interlock
is held.
2007-04-01 10:45:32 +00:00
Marcel Moolenaar
d71cc3c89d Add bge(4).
Fix a white-space nit while I'm here.
2007-04-01 06:24:19 +00:00
Marcel Moolenaar
37402373e9 When writing to PCI configuration registers, don't immediately
read the same register back. It can cause hangs or machine
checks in certain cases. One particular case is with bge(4)
when a reset is initiated for the controller.

MFC after: 1 month
2007-04-01 06:15:53 +00:00
Marcel Moolenaar
447e3a84cc Remove unused file. 2007-04-01 00:41:01 +00:00
Dag-Erling Smørgrav
e6534b36d8 Make vdropl() public; zfs needs it. There is also plenty of existing
file system code (mostly *_reclaim()) which look like this:

    VOP_LOCK(vp);
    /* examine vp */
    VOP_UNLOCK(vp);
    vdrop(vp);

This can now be rewritten to:

    VOP_LOCK(vp);
    /* examine vp */
    vdropl(vp); /* will unlock vp */

MFC after:	1 week
2007-03-31 23:57:17 +00:00
John Baldwin
4e7f640dfb Optimize sx locks to use simple atomic operations for the common cases of
obtaining and releasing shared and exclusive locks.  The algorithms for
manipulating the lock cookie are very similar to that rwlocks.  This patch
also adds support for exclusive locks using the same algorithm as mutexes.

A new sx_init_flags() function has been added so that optional flags can be
specified to alter a given locks behavior.  The flags include SX_DUPOK,
SX_NOWITNESS, SX_NOPROFILE, and SX_QUITE which are all identical in nature
to the similar flags for mutexes.

Adaptive spinning on select locks may be enabled by enabling the
ADAPTIVE_SX kernel option.  Only locks initialized with the SX_ADAPTIVESPIN
flag via sx_init_flags() will adaptively spin.

The common cases for sx_slock(), sx_sunlock(), sx_xlock(), and sx_xunlock()
are now performed inline in non-debug kernels.  As a result, <sys/sx.h> now
requires <sys/lock.h> to be included prior to <sys/sx.h>.

The new kernel option SX_NOINLINE can be used to disable the aforementioned
inlining in non-debug kernels.

The size of struct sx has changed, so the kernel ABI is probably greatly
disturbed.

MFC after:	1 month
Submitted by:	attilio
Tested by:	kris, pjd
2007-03-31 23:23:42 +00:00
Sam Leffler
511cecafd6 oops, another missed file from crypto api change 2007-03-31 23:15:11 +00:00
Pawel Jakub Dawidek
695919ad9a Make vfs_mount_destroy() and vfs_freeopts() non-static, I'd like to use them. 2007-03-31 22:44:45 +00:00
John Baldwin
4dc5078f81 Add constants for the fields in a BAR. Also, add two new macros
PCI_BAR_(IO|MEM)() that return true if the passed in value from a BAR
is for an IO or memory BAR, respectively.

Reviewed by:	imp
2007-03-31 21:39:02 +00:00
Matt Jacob
9f9e9ae3a7 Fix compilation problem (add a const) for pre-7.0 compiles. 2007-03-31 21:01:35 +00:00
John Baldwin
657d9f9f55 - Add missing constants for subclasses.
- Add a few progif constants as well.
2007-03-31 20:41:00 +00:00
Robert Watson
e92d773fbc Rather than ignoring any error return from getnewvnode() in nameiinit(),
explicitly test and panic.  This should not ever happen, but if it does,
this is a preferred failure mode to a NULL pointer dereference in kernel.

Coverity CID:	1716
Found with:	Coverity Prevent(tm)
2007-03-31 16:08:50 +00:00
Wojciech A. Koszek
4abab3d593 We don't need spinning locks here. Change them to the adaptive mutexes. This
change should bring no performance decrease, as it did not in my tests.

Reviewed by:	julian, glebius
Approved by:	cognet (mentor)
2007-03-31 15:43:06 +00:00
Alexander Leidinger
c2bb6a54ef Tell interested readers of the source that the return value is not
checked by intend.

Found by:	Coverity Prevent (tm)
CID:		55
Reviewed by:	ariff
2007-03-31 13:38:12 +00:00
Randall Stewart
5e54f665f0 - Found bug in min split point bundling which caused
incorrect, non-bundlable fragmentation.
- Added min residual to better control split points for
  both how big a msg must be as well as how much needs
  to be left over.
- With our new algo in place, we need to implicitly
  set "end of msg" on the sp-> structure otherwise we
  end up with "hung" associations.
- Room reserved up front in IP header by pushing IP
  header to back of mbuf.
- Fix so FR's peg count of retransmissions needed.
- Fix so an unlucky chunk that never gets across
  will kill the assoc via the kill timer and send an
  abort too.
- Fix bug in sctp_input which can result in a crash.
- Do not strip off IP options anymore.
- Clean up sctp_calculate_rto().
- Get rid of unused sysctl.
- Fixed so we discard all M-Cast
- Fixed so port check done AFTER checksum
- Fixed bug in fragmentation code that prevented
  us from fragmenting a small complete message when
  we needed to.
- Window probes were not marked back to unsent and
  flight adjusted when a sack came in with no
  window change or accepting of the probe data.
  We now fix this with having a mark on the net and
  the chunk so we can clear it out when the sack arrives
  forcing it to retran just like it was "new" this
  improves the handling of window probes, which were
  dropped by the receiver.
- Tighten AUTH protocol error checks during INIT/INIT-ACK exchange
2007-03-31 11:47:30 +00:00
Jung-uk Kim
46bd727a1e Correct BB-profiling and adjust comments.
Pointed out by:	bde
Reviewed by:	bde
2007-03-31 01:47:37 +00:00
Jung-uk Kim
6a4abad780 Fix off-by-4 error in address validation for i386, reduce PCB reloading, and
fix more style(9) nits.

Pointed out by:	bde
Discussed with:	kib
Reviewd by:	bde
2007-03-30 23:19:08 +00:00
Hidetoshi Shimokawa
437a3435c5 Teardown interrupt only when sc->ih is not NULL.
MFC after: 3 days
2007-03-30 22:25:26 +00:00
Jung-uk Kim
80f87d5e55 Fix more style(9) nits[1] and remove unnecessary use of '#if !defined(_KERNEL)'.
Pointed out by:	bde[1]
2007-03-30 19:33:53 +00:00
Jung-uk Kim
6403d3a160 Use the same wisdom of sys/i386/i386/support.s 1.97 to remove obfuscation.
Pointed out by:	bde
2007-03-30 18:27:57 +00:00
John Baldwin
028923e54d - Use PARTIAL_PICKUP_GIANT() to implement PICKUP_GIANT().
- Move UGAR() macro up to the comment that describes it.
- Fix a couple of typos.
2007-03-30 18:10:08 +00:00
John Baldwin
b80ad3eea1 - Drop memory barriers in rw_try_upgrade(). We don't need an 'acq' memory
barrier here as the earlier rw_rlock() already contained one.
- Comment fix.
2007-03-30 18:08:55 +00:00
John Baldwin
ab2dab1680 - Use lock_init/lock_destroy() to setup the lock_object inside of lockmgr.
We can now use LOCK_CLASS() as a stronger check in lockmgr_chain() as a
  result.  This required putting back lk_flags as lockmgr's use of flags
  conflicted with other flags in lo_flags otherwise.
- Tweak 'show lock' output for lockmgr to match sx, rw, and mtx.
2007-03-30 18:07:24 +00:00
Jung-uk Kim
3dd8390fd9 Use underlying structures instead of kernel_sysctlbyname() for msginfo and
seminfo because kernel_sysctlbyname() is slow.  There is no dependency
problem since linux module depends on both sysvmsg and sysvsem and linprocfs
depends on it in turn.

Pointed out by:	des
Reviewed by:	des
2007-03-30 17:56:44 +00:00
Jung-uk Kim
b5def2b6b5 MFP4: Fix style(9) nits and grammar in comments. 2007-03-30 17:27:13 +00:00
Jung-uk Kim
5e397f16cd MFP4: 114193, 114194
Dont "return" in linux_clone() after we forked the new process in a case
of problems.  Move the copyout of p2->p_pid outside the emul_lock coverage.

Submitted by:	Roman Divacky
2007-03-30 17:16:51 +00:00
Xin LI
a92b7d4982 - Be more verbose when saying "foo" not found.
- In gctl_get_geom(), don't issue error when we were not
   provided with an parameter, like gctl_get_provider() did.

Reviewed by:	pjd
2007-03-30 16:32:08 +00:00
Hidetoshi Shimokawa
b34b30c5af Free tlabel in fw_xfer_done(). 2007-03-30 15:43:56 +00:00
Hidetoshi Shimokawa
f8d062cf84 - Don't call fw_busreset() in firewire_attach().
This should fix the problem that the first bus reset is
sometimes ignored because of FWBUSRESET status.

MFC after: 3 days
2007-03-30 14:41:24 +00:00
Wojciech A. Koszek
2c8dda8d55 Instead of direct manipulation on queue and worklist mutexes, bring macros
for doing this job. This change will make it easy to migrate from using
spinning locks to adaptive ones.

Reviewed by:	glebius, julian
Approved by:	cognet (mentor)
2007-03-30 14:34:34 +00:00
Jung-uk Kim
a328699b34 MFP4: Linux futex support for amd64.
Initial patch was submitted by kib and additional work was done
by Divacky Roman.

Tested by:	emulation
2007-03-30 01:07:28 +00:00
Jung-uk Kim
3a33908404 Regen for set_thread_area. 2007-03-30 00:08:21 +00:00
Jung-uk Kim
9c5b213e51 MFP4: Linux set_thread_area syscall (aka TLS) support for amd64.
Initial version was submitted by Divacky Roman and mostly rewritten by me.

Tested by:	emulation
2007-03-30 00:06:21 +00:00
Bruce M Simpson
f7e083af90 Fix a bug in IPv4 address configuration exposed by refcounting.
* Join the IPv4 all-hosts multicast group 224.0.0.1 once only;
   that is, when an IPv4 address is first configured on an interface.
 * Do not join it for subsequent IPv4 addresses as this violates IGMP.
 * Be sure to leave the group when all IPv4 addresses have been removed
   from the interface.
 * Add two DIAGNOSTIC printfs related to the issue.

Further care and attention is needed in this area; it is suggested that
netinet's attachment to the ifnet structure be compartmentalized and
non-implicit.

Bug found by:	andre
MFC after:	1 month
2007-03-29 21:39:22 +00:00
Matt Jacob
c6048aee5d some minor error message cleanups 2007-03-29 21:29:26 +00:00
Wojciech A. Koszek
2404c938e6 vm_map_delete should be used only internally, by the VM subsystem. Replace
it with vm_map_remove, which not only embeds additional check, but also
takes care of locking.

Reviewed by:	alc
Approved by:	alc, cognet (mentor)
2007-03-29 13:26:13 +00:00
Konstantin Belousov
06f0c8dc4d Revert rev. 1.205. Replace unconditional acquision of Giant when QUOTAS are
defined with VFS_LOCK_GIANT(NULL) call.
This shall fix softdep operation when mpsafe_vfs = 0.

Reported and tested by:	kris
Submitted by:	tegge
MFC after:	1 week
2007-03-29 08:26:04 +00:00
Konstantin Belousov
c146055fad Extend rev. 1.210 to avoid dereference NULL mp in VFS_NEEDSGIANT and
VFS_ASSERT_GIANT. Stop using reserved namespace.

Reported and tested by:		kris
Reviewed and enhanced by:	tegge
MFC after:	1 week
2007-03-29 08:21:09 +00:00
Maxim Konovalov
991555c9c0 o Revert last. The chip is already supported by puc(4).
Pointed out by:	marcel, Joseph Terner
2007-03-29 04:26:52 +00:00
Julian Elischer
6734f35eac Implement the openat() linux syscall
Submitted by:	Roman Divacky (rdivacky@)
MFC after:	2 weeks
2007-03-29 02:11:46 +00:00
Warner Losh
bc5676e30c RTC_TIMR's RTC_SEC field is BCD. That makes it unsuitable for
GetSeconds().  Instead, use CRTR register shifted right 15.  This
gives us a range of 32 seconds we can do for timeout.

Shift to using == rather than < or > for calculating the timeout,
since if we can't read the ST_CTRT register twice in a second we have
even bigger problems to worry about, and == deals with the 'wrap'
issue.

This lets me type at the boot2 prompt again!  Woo Hoo!

Bogusness noticed by: tisco
Pointy Hat to: That silly imp guy
2007-03-28 22:40:37 +00:00
Warner Losh
d63927b199 Since we're about to set ST_RTMR to 1 to increase the accuracy of the
CRTR register to be 1/32768th of a second in init, we don't need to do
it here.
2007-03-28 22:38:01 +00:00
Warner Losh
304d0536ab All SD cards have a block size of 512. The READ_BL_LEN field in the
CSD is usually 512 (well, 9), but for 2GB (and the rogue 4GB SD cards)
it is 1024 (or 2048 for 4GB).  This value doesn't work for the block
read commands (which really want 512).  Hardcode 512 for those.  This
may break really old MMC cards that don't have a 512 block size (I've
never seen one: make my day and send me one :-), but since the MMC
side of the house is currently broken, it should only have the effect
that 2GB (and non-conforming 4GB) SD cards will work.

My 'non-conforming' 4GB SD card also works now too.  The
non-conforming 4GB SD cards were sold for a while before the SD
association was worried they would be (a) incompatible (different FAT
flavor on them) and (b) confusing for the new SDHC standard and
cracked down on suppliers' bogus use of the SD trademark...
2007-03-28 22:31:32 +00:00
Nate Lawson
5394d87e21 Re-enable the HPET timer after a resume.
Submitted by:	Andrea Bittau <a.bittau@cs.ucl.ac.uk>
MFC after:	3 days
2007-03-28 22:28:48 +00:00
Maksim Yevmenkin
4301b2519d Try to silence Coverity by adding (void) in front of function call.
Also add a comment, explaining why return value is not being checked.

Requested by:	netchild
MFC after:	1 week
2007-03-28 21:25:56 +00:00
Warner Losh
89e75021fa Various buglets fixed (from submitter):
The changes to getstr() is so that the character that is
	passed in to it, is also processed just as the rest. I also
	removed one of the getc() calls otherwise you loose every
	second character.

	I also changed the strcpy of kname, so that it only happens if
	kname is '\0'. This is so that one can pass a kernel in
	through /boot.config.

	The last change to boot2.c is in parse(). If you tried to type
	a kernel name to boot, the first character was lost, the arg--
	fix that.

Submitted by: jhay
2007-03-28 21:18:45 +00:00
Warner Losh
5a8da39aa7 Fix problem where memcmp would return true in the case where the
character after the character that was the same.

Submitted by: jhay
2007-03-28 21:15:50 +00:00
Warner Losh
a480291907 Fix off by one error in length of the string.
Submitted by: jhay
2007-03-28 21:12:43 +00:00
Maxim Konovalov
747bef5b85 o Add MosChip 9835 PCI Dual UART PCI id.
PR:		kern/110967
Submitted by:	Joseph Terner
MFC after:	1 month
2007-03-28 18:56:27 +00:00
Marcel Moolenaar
ebecffe930 For embedded UARTs compatible with the ns8250 family it is possible
that the driver clock is identical to the processor or bus clock.
This is the case for the PowerQUICC processor. When the clock is
high enough, overflows happen in the calculation of the time it
takes to send 1/10 of a character, used in delay loops. Fix the
overflows so as to fix bugs in the delay loops that can cause either
insufficient delays or excessive delays.
2007-03-28 18:34:59 +00:00
Marcel Moolenaar
1c5e367bcc When we match UARTs found during bus-enumeration with UARTs used for
system devices (i.e. console, debug port or keyboard), don't stop
after the first match. Find them all and keep track of the last.
The reason for this change is that the low-level console is always
added to the list of system devices first, with other devices added
later. Since new devices are added to the list at the head, we have
the console always at the end. When a debug port is using the same
UART as the console, we would previously mark the "newbus" UART as
a debug port instead of as a console. This would later result in a
panic because no "newbus" device was associated with the console.
By matching all possible system devices we would mark the "newbus"
UART as a console and not as a debug port.
While it is arguably better to be able to mark a "newbus" UART as
both console and debug port, this fix is lightweight and allows
a single UART to be used as the console as well as a debug port
with only the aesthetic bug of not telling the user about it also
being a debug port.

Now that we match all possible system devices, update the rclk of
the system devices with the rclk that was obtained through the
bus attachment. It is generally true that clock information is
more reliable when obtained from the parent bus than by means of
some hardcoded or assumed value used early in the boot. This by
virtue of having more context information.

MFC after: 1 month
2007-03-28 18:26:12 +00:00
Remko Lodder
847f53100a Add support for the 82562GX chip within if_fxp.
PR:		110251
Submitted by:	Vyacheslav Vovk
Approved by:	imp (mentor)
MFC After:	3 days
2007-03-28 18:10:50 +00:00
Remko Lodder
2ee2c3b4e4 Add support for the RTL8110SC driver.
PR:		110804
Submitted by:	Daan Vreeken
Sponsored by:	Vitsch Electronics (patch)
Approved by:	imp (mentor)
MFC After:	3 days
2007-03-28 18:07:12 +00:00
Marcel Moolenaar
f1aad6d9b2 Add method enabled() to the SCC interface. This method can be used
by driver backends to mark individual channels as enabled or not.
The default implementation of this method always mark channels as
enabled.
This method is currently not used, but is added with the PowerQUICC
in mind where the 2nd SCC channel can be disabled.
2007-03-28 18:05:17 +00:00
Matt Jacob
2e35504d71 Don't derference a pointer before setting it.
Very Pointy Dunce Cap T o: me.
Submitted by:	Marcel
MFC after:	3 days
2007-03-28 16:34:11 +00:00
Gleb Smirnoff
dc7359b8dd Bump maximum number of interface hooks to the maximum possible value.
This will increase the memory consumption for more than 1 Mb, but this
is required for operation on multiinterface access concentrators running
mpd.

Requested by:	Alexander Motin
2007-03-28 13:59:13 +00:00
Andre Oppermann
1929eae1cc When blackholing do a 'dropunlock' in the new world order to prevent the
INP_INFO_LOCK from leaking.

Reported by:	ache
Found by:	rwatson
2007-03-28 12:58:13 +00:00
Marcel Moolenaar
abb3d233c4 Allow the range of a SCC class to be 0. This gives all child
devices the same (overlapping) I/O range. This is useful for
embedded communications controllers like the CPM of various
models of the PowerQUICC.
2007-03-28 06:45:33 +00:00
Robert Watson
77c78838f0 Remove stale comment about not enabling inpcb and inpcbinfo lock assertions
when IPv6 is enabled.

MFC after:	3 days
2007-03-28 00:50:20 +00:00
Nick Hibma
f29fa1dfa4 Revisit the watchdogs: Resetting the error to EINVAL after failing to set the
watchdog might hide the succesful arming of an earlier one. Accept that on
failing to arm any watchdog (because of non-supported timeouts) EOPNOTSUPP is
returned instead of the more appropriate EINVAL.

MFC after:	3 days
2007-03-27 21:03:37 +00:00
Gleb Smirnoff
5de558219a Fix regression in rev. 1.140.
Reported by:	Yuriy Tsibizov <Yuriy.Tsibizov gfk.ru>, bsam
2007-03-27 19:36:12 +00:00
John Baldwin
02e4a32084 Sort. 2007-03-27 19:32:40 +00:00
Julian Elischer
6f5d1a3c01 Don't assume the run bit is still set after a suspend.
Submitted by: Andrea Bittau ( adotbittauatcsdotucldotacdotuk)
MFC After: 1 week
2007-03-27 18:55:06 +00:00
John Baldwin
4649e92b4e Align 'struct thread' on 16 byte boundaries so that the lower 4 bits are
always 0.  Previously we aligned threads on a minimum of 8-byte boundaries.

Note: This changes the uma zone to no longer cache align threads.  We
really want the uma zone to do align threads to MAX(16, cache line size)
but there currently isn't a good way to express that to uma.

Submitted by:	attilio
2007-03-27 16:51:34 +00:00
Bruce M Simpson
75ae0c016b Fix a case where hardware removal of an interface caused an attempt to
announce an ll_ifma which has gone away. Add a KASSERT to catch regressions.

Bug found by:	Tom Uffner
2007-03-27 16:11:28 +00:00
Andrew Gallatin
40385a5f33 Fix a bug which could lead to receive side lockup when WC is disabled.
When submitting rx buffers and not using WC fifo, always replace the
invalid DMA address with the real one, otherwise allocation failures
could lead to the invalid DMA address being given to the NIC, and
that would cause the receive side to lockup.
2007-03-27 15:55:32 +00:00
John Baldwin
8b4b92d2f6 Fix a comment grammar nit. 2007-03-27 15:09:10 +00:00
Alan Cox
19c244d064 Prevent a race between vm_object_collapse() and vm_object_split() from
causing a crash.

Suppose that we have two objects, obj and backing_obj, where
backing_obj is obj's backing object.  Further, suppose that
backing_obj has a reference count of two.  One being the reference
held by obj and the other by a map entry.  Now, suppose that the map
entry is deallocated and its reference removed by
vm_object_deallocate().  vm_object_deallocate() recognizes that the
only remaining reference is from a shadow object, obj, and calls
vm_object_collapse() on obj.  vm_object_collapse() executes

                if (backing_object->ref_count == 1) {
                        /*
                         * If there is exactly one reference to the backing
                         * object, we can collapse it into the parent.
                         */
                        vm_object_backing_scan(object, OBSC_COLLAPSE_WAIT);

vm_object_backing_scan(OBSC_COLLAPSE_WAIT) executes

        if (op & OBSC_COLLAPSE_WAIT) {
                vm_object_set_flag(backing_object, OBJ_DEAD);
        }

Finally, suppose that either vm_object_backing_scan() or
vm_object_collapse() sleeps releasing its locks.  At this instant,
another thread executes vm_object_split().  It crashes in
vm_object_reference_locked() on the assertion that the object is not
dead.  If, however, assertions are not enabled, it crashes much later,
after the object has been recycled, in vm_object_deallocate() because
the shadow count and shadow list are inconsistent.

Reviewed by: tegge
Reported by: jhb
MFC after: 1 week
2007-03-27 08:55:17 +00:00
Kevin Lo
45c4f0cbc3 Don't map mini-data cache page since ARM920T doesn't have it. 2007-03-27 06:29:19 +00:00
Marcel Moolenaar
f3ea971bf0 PowerPC is the only architecture with mpsafe_vfs=0. This is now
broken. Rudimentary tests show that PowerPC can run with
mpsafe_vfs=1. Make it so...
2007-03-27 05:29:41 +00:00
Jung-uk Kim
abedf9eb2f - Use '*h' instead of 'struct acpi_spinlock' for sizeof[1].
- Add a missing 'else' for 'if'[2].

Requested by:	njl[1]
Submitted by:	njl[2]
2007-03-26 23:04:02 +00:00
Kris Kennaway
6455de0029 Annotate that this giant acqusition is dependent on tty locking. 2007-03-26 21:56:46 +00:00
Jung-uk Kim
5acbef6ae5 Correct ACPI semaphore function parameters. 2007-03-26 21:56:35 +00:00
Thomas Quinot
9068c00114 Fix setting of serial port speed. A junk value was passed in AX when
bioscom is called to set up serial port parameters because COMSPEED
was treated as an address instead of an immediate value, causing
serial port parameters to never be set.

PR:		i386/110828
Reviewed by:	jhb
MFC after:	2 weeks
2007-03-26 21:56:13 +00:00
Kris Kennaway
17e910a261 make_dev(9) can be (and is) called without Giant, so there is no need to
drop the topology lock and acquire Giant around this call.

Reviewed by:	phk
2007-03-26 21:47:03 +00:00
Kris Kennaway
67eae018cb Remove unnecessary giant acquisition around panic in #ifdef DIAGNOSTIC
code.

# There is some question about whether this code is even relevant any
# longer (it dates back to prehistoric times, i.e. present in r1.1),
# especially on amd64.

Reviewed by:	jhb
2007-03-26 21:45:44 +00:00
Jung-uk Kim
97c9968179 Free the handle, not the lock. Pointy hat to me. 2007-03-26 21:36:31 +00:00
Jung-uk Kim
98defcd3f2 Correct ACPI spinlock function parameters and use known ACPI spinlock names. 2007-03-26 21:23:23 +00:00
John Baldwin
b2bfac4c06 Change the VPD code to read the VPD data on-demand when a driver asks for
it via pci_get_vpd_*() rather than always reading it for each device during
boot.  I've left the tunable so that it can still be turned off if a device
driver causes a lockup via a query to a broken device, but devices whose
drivers do not use VPD (the vast majority) should no longer result in
lockups during boot, and most folks should not need to tweak the tunable
now.

Tested on:	bge(4)
Silence from:	jmg
2007-03-26 20:18:52 +00:00
Nate Lawson
e49e68cc9d Use a unique name for each mutex now that acpi-ca is creating more than
one (hardware & global lock).  This should address witness complaints that
a duplicate mutex is being acquired.  Be sure to free the mutex to fix a
potential memory leak.

MFC after:	3 days
2007-03-26 19:38:28 +00:00
Maxim Konovalov
2701afd004 o Update a comment: sonewconn() lives in uipc_socket.c now. 2007-03-26 18:17:57 +00:00
Nate Lawson
54c2673813 Bump FreeBSD version for inclusion of CPU frequency change notifiers. 2007-03-26 18:04:41 +00:00
Nate Lawson
0d4ac62a35 Add an interface for drivers to be notified of changes to CPU frequency.
cpufreq_pre_change is called before the change, giving each driver a chance
to revoke the change.  cpufreq_post_change provides the results of the
change (success or failure).  cpufreq_levels_changed gives the unit number
of the cpufreq device whose number of available levels has changed.  Hook
in all the drivers I could find that needed it.

* TSC: update TSC frequency value.  When the available levels change, take the
highest possible level and notify the timecounter set_cputicker() of that
freq.  This gets rid of the "calcru: runtime went backwards" messages.
* identcpu: updates the sysctl hw.clockrate value
* Profiling: if profiling is active when the clock changes, let the user
know the results may be inaccurate.

Reviewed by:	bde, phk
MFC after:	1 month
2007-03-26 18:03:29 +00:00
Ed Maste
caa8943810 Avoid manipulating semu_list outside of the scope of SEMUNDO_LOCK(). This
would lead to an occasional hang with a cycle in semu_list.

X-Discussed-On: hackers@
2007-03-26 17:41:14 +00:00