Commit Graph

160099 Commits

Author SHA1 Message Date
Ed Schouten
2d491fabff Slightly improve output of lock(1).
- Remove the /dev/ portion of the TTY name.
- In case we use lock -p, print the username that was used to obtain the
  password hash.
2010-12-25 11:24:27 +00:00
Konstantin Belousov
8569deaf1c Implement support for ELF filters in rtld. Both normal and auxillary
filters are implemented.

Filtees are loaded on demand, unless LD_LOADFLTR environment variable
is set or -z loadfltr was specified during the linking. This forces
rtld to upgrade read-locked rtld_bind_lock to write lock when it
encounters an object with filter during symbol lookup.

Consolidate common arguments of the symbol lookup functions in the
SymLook structure.  Track the state of the rtld locks in the
RtldLockState structure. Pass local RtldLockState through the rtld
symbol lookup calls to allow lock upgrades.

Reviewed by:	kan
Tested by:	Mykola Dzham <i levsha me>, nwhitehorn (powerpc)
2010-12-25 08:51:20 +00:00
Konstantin Belousov
06786ccfb3 Add a hook to pass debug flags to the build of rtld when doing make in
the rtld directory.

Reviewed by:	kan
2010-12-25 08:42:38 +00:00
Rick Macklem
0cf42b622b Add an argument to nfsvno_getattr() in the experimental
NFS server, so that it can avoid calling VOP_ISLOCKED()
when the vnode is known to be locked. This will allow
LK_SHARED to be used for these cases, which happen to
be all the cases that can use LK_SHARED. This does not
fix any bug, but it reduces the number of calls to
VOP_ISLOCKED() and prepares the code so that it can be
switched to using LK_SHARED in a future patch.

Reviewed by:	kib
MFC after:	2 weeks
2010-12-24 21:31:18 +00:00
Rick Macklem
a852f40b7a Simplify vnode locking in the expeimental NFS server's
readdir functions. In particular, get rid of two bogus
VOP_ISLOCKED() calls. Removing the VOP_ISLOCKED() calls
is the only actual bug fixed by this patch.

Reviewed by:	kib
MFC after:	2 weeks
2010-12-24 20:24:07 +00:00
Rick Macklem
63e1cb4308 Since VOP_READDIR() for ZFS does not return monotonically
increasing directory offset cookies, disable the UFS related
loop that skips over directory entries at the beginning of
the block for the experimental NFS server. This loop is
required for UFS since it always returns directory entries
starting at the beginning of the block that
the requested directory offset is in. In discussion with pjd@
and mckusick@ it seems that this behaviour of UFS should maybe
change, with this fix being an interim patch until then.
This patch only fixes the experimental server, since pjd@ is
working on a patch for the regular server.

Discussed with:	pjd, mckusick
MFC after:	5 days
2010-12-24 18:46:44 +00:00
David Xu
e29ba4c2db Always clear flag PMUTEX_FLAG_DEFERED when unlocking, as it is only
significant for lock owner.
2010-12-24 07:41:39 +00:00
Warner Losh
5f523ccd1c Redirect stderr from config to /dev/null. config -m is printing lots
of annoying warnings when dealing with arm.  The arm config files need
to be fixed, but this restricts the output to a more useful place.
2010-12-24 04:55:56 +00:00
Warner Losh
72497ecf7e IXP4XX_GPIO_{,UN}LOCK() don't take args. Remove the sc here to make
this compile again.
2010-12-23 19:28:50 +00:00
John Baldwin
0d81cf1227 Don't try to reserve a resource that is already allocated. If the ECDT
table is present, then the acpi_ec(4) driver will allocate its resources
from nexus0 before the acpi0 device reserves resources for child devices.

Reviewed by:	jkim
2010-12-23 18:50:14 +00:00
John Baldwin
e1070bf509 Drop the icu_lock spinlock while pausing briefly after masking the
interrupt in the I/O APIC before moving it to a different CPU.  If the
interrupt had been triggered by the I/O APIC after locking icu_lock but
before we masked the pin in the I/O APIC, then this could cause the
interrupt to be pending on the "old" CPU and it would finally trigger
after we had moved the interrupt to the new CPU.  This could cause us to
panic as there was no interrupt source associated with the old IDT vector
on the old CPU.  Dropping the lock after the interrupt is masked but
before it is moved allows the interrupt to fire and be handled in this
case before it is moved.

Tested by:	Daniel Braniss  danny of cs huji ac il
MFC after:	1 week
2010-12-23 15:17:28 +00:00
David Xu
1c45127bd3 Enlarge hash table for new condition variable. 2010-12-23 03:12:03 +00:00
Xin LI
24f2cbe959 style.Makefile says tab between var= and value. 2010-12-23 01:45:48 +00:00
Kirk McKusick
84ad0a66d0 This patch fixes a soft update panic while running perl 5.12 tests
which produced:

    panic: indir_trunc: Index out of range -148 parent -2061 lbn -305164

Reported by: Dimitry Andric
Fixed by: Jeff Roberson
2010-12-23 00:38:57 +00:00
Xin LI
f49f3df86a Allow overriding pidfile and dumpfile.
PR:		bin/153362
Submitted by:	Joe Holden <joe rewt org uk>
MFC after:	1 month
2010-12-22 23:58:21 +00:00
John Baldwin
ea23319939 Use resource_list_reserve() to reserve I/O port and memory resources for
ACPI devices even if they are not allocated by a device driver since the
resources are in use and should not be allocated to another device.
2010-12-22 20:27:20 +00:00
Jung-uk Kim
50e3cec377 Increase size of pcb_flags to four bytes.
Requested by:	bde, jhb
2010-12-22 19:57:03 +00:00
Michael Tuexen
060bd88290 Provide a possibility to configure the inital congestion window to the
value defined in RFC 4960.

MFC after: 3 months.
2010-12-22 19:04:14 +00:00
Nathan Whitehorn
886a0c5b95 Include std.sentry5 from the SENTRY5 kernel configuration. This was
apparently missed in r215270.
2010-12-22 19:01:48 +00:00
Michael Tuexen
7c99d56fdf Improve plausibility check in sctp_handle_sack().
Allow cmt_on_off to support values 0 (no CMT), 1 (CMT), and 2 (CMT/RP).

MFC after: 3 months.
2010-12-22 17:59:38 +00:00
Edward Tomasz Napierala
baf7e5ea7b Fix date, broken in r216667.
Submitted by:	stefanf@
2010-12-22 17:12:58 +00:00
Edward Tomasz Napierala
07d6dffa57 The 'kern.corefile="whatever"' syntax won't work with sysctl.conf; remove
the quotes to not mislead people.

MFC after:	1 month
2010-12-22 17:02:01 +00:00
Ken Smith
b3a12a33fd Add package directories used for the upcoming 8.2 and 7.4 releases,
and catch up on a few from previous releases.
2010-12-22 15:44:25 +00:00
Nathan Whitehorn
47033eb24d Enable build of FDT components by default. dtc is a required build tool
for all FDT-enabled kernels, and having it off by default means that
building these kernels fails by default. This fixes FDT-related build
failures in make universe on ARM and PowerPC.

Reviewed by:	imp
2010-12-22 14:59:22 +00:00
Rebecca Cran
3908f1f965 Add an option to disable the screensaver. 2010-12-22 13:06:51 +00:00
John Hay
e9a23b5585 Add IFT_L2VLAN to the list that is capable of supplying the ingredients
of the EUI64 part of an IPv6 address. Otherwise vlans will all use the
MAC address of the first ethernet interface of the system.

MFC after:	1 week
2010-12-22 11:58:31 +00:00
David Xu
0126aea6ad Add sleep queue code. 2010-12-22 05:03:24 +00:00
David Xu
d1078b0b03 MFp4:
- Add flags CVWAIT_ABSTIME and CVWAIT_CLOCKID for umtx kernel based
  condition variable, this should eliminate an extra system call to get
  current time.

- Add sub-function UMTX_OP_NWAKE_PRIVATE to wake up N channels in single
  system call. Create userland sleep queue for condition variable, in most
  cases, thread will wait in the queue, the pthread_cond_signal will defer
  thread wakeup until the mutex is unlocked, it tries to avoid an extra
  system call and a extra context switch in time window of pthread_cond_signal
  and pthread_mutex_unlock.

The changes are part of process-shared mutex project.
2010-12-22 05:01:52 +00:00
Jung-uk Kim
e6c006d96a Improve PCB flags handling and make it more robust. Add two new functions
for manipulating pcb_flags.  These inline functions are very similar to
atomic_set_char(9) and atomic_clear_char(9) but without unnecessary LOCK
prefix for SMP.  Add comments about the rationale[1].  Use these functions
wherever possible.  Although there are some places where it is not strictly
necessary (e.g., a PCB is copied to create a new PCB), it is done across
the board for sake of consistency.  Turn pcb_full_iret into a PCB flag as
it is safe now.  Move rarely used fields before pcb_flags and reduce size
of pcb_flags to one byte.  Fix some style(9) nits in pcb.h while I am in
the neighborhood.

Reviewed by:	kib
Submitted by:	kib[1]
MFC after:	2 months
2010-12-22 00:18:42 +00:00
Pawel Jakub Dawidek
6e4e1c18e4 Use newly added NFSRV_FLAG_BUSY flag for nfsrv_fhtovp() to keep mount point
busy. This fixes a race where we can pass invalid mount point to VFS_VGET()
via vp->v_mount when exported file system was forcibly unmounted between
nfsrv_fhtovp() and VFS_VGET().

Reviewed by:	kib
MFC after:	5 days
2010-12-21 23:15:40 +00:00
Pawel Jakub Dawidek
7ef95239a9 - Move pubflag and lockflag handling from nfsrv_fhtovp() to nfs_namei() -
this is the only place that is different from all the other nfsrv_fhtovp()
  consumers.
  This simplifies nfsrv_fhtovp() a bit and also eliminates one
  vn_lock/VOP_UNLOCK() cycle in case of NFSv3.
- Implement NFSRV_FLAG_BUSY flag for nfsrv_fhtovp() that tells it to leave
  mount point busy.

Reviewed by:	kib
MFC after:	5 days
2010-12-21 23:12:45 +00:00
Pawel Jakub Dawidek
f2f1ef00be On error, unbusy file system and jump to the end, so we won't try to unlock
NULL *vpp.

Reviewed by:	kib
MFC after:	5 days
2010-12-21 23:04:04 +00:00
Jilles Tjoelker
12dfb7a554 sh(1): Explain why it is a bad idea to use aliases in scripts. 2010-12-21 22:48:56 +00:00
Jilles Tjoelker
0a62a9caa9 sh: Add kill builtin.
This allows specifying a %job (which is equivalent to the corresponding
process group).

Additionally, it improves reliability of kill from sh in high-load
situations and ensures "kill" finds the correct utility regardless of PATH,
as required by POSIX (unless the undocumented %builtin mechanism is used).

Side effect: fatal errors (any error other than kill(2) failure) now return
exit status 2 instead of 1. (This is consistent with other sh builtins, but
not in NetBSD.)

Code size increases about 1K on i386.

Obtained from:	NetBSD
2010-12-21 22:47:34 +00:00
Marius Strobl
05bcfef170 Extend the hack of r182730 to trick GAS/GCC into compiling access to
STICK/STICK_COMPARE independently of the selected instruction set by
TICK_COMPARE so tick.c as of r214358 once again can be compiled with
gcc -mcpu=v9 for reference purposes.
2010-12-21 22:03:12 +00:00
Pawel Jakub Dawidek
644f6439f1 After r216626 no extra { } are needed with VFS_UNLOCK_GIANT(). 2010-12-21 22:01:26 +00:00
Pawel Jakub Dawidek
8dfec4a3d5 Close body of the VFS_UNLOCK_GIANT() macro into do { } while (0) loop,
so it can be used in code like this:

	if (cond)
		VFS_UNLOCK_GIANT(vfslocked);
	else
		; /* Do something else. */

Before the change, compiler couldn't decide on its own if else should be
applied to the 'if (cond)' or to the if statement inside VFS_UNLOCK_GIANT()
macro.
2010-12-21 21:59:21 +00:00
Marius Strobl
3318c3ef45 Revert r216080 so kmem_map is capped at 3/5 of the currently rather modest
kernel address space in order to leave space for the buffer cache, pipes,
thread stacks, etc on machines with more physical memory until we take
advantage of ASI_ATOMIC_QUAD_LDD_PHYS on CPUs providing it so we don't need
to lock the kernel TSB pages into the dTLB, basically making the entire
64-bit kernel address space available on relevant machines.

Submitted by:	alc
2010-12-21 21:32:17 +00:00
Marius Strobl
142d932b79 - Add a comment regarding the fact that as documented in the datasheet
manual 1000BASE-T modes of DP83865 only work together with other National
  Semiconductor PHYs.
- Spell 10BASE-T correctly
- Remove some redundant braces.
2010-12-21 21:12:18 +00:00
Jilles Tjoelker
5fe9123ff5 sh: Add a function to print warnings (with command name and newline).
This is like error() but without raising an exception.
It is particularly useful as a replacement for the warnx macro in
bltin/bltin.h.
2010-12-21 20:47:06 +00:00
John Baldwin
b5224580a4 Fix a typo in a comment.
MFC after:	1 week
2010-12-21 19:30:24 +00:00
Matthew D Fleming
4b7c684420 Initialize fp_location for explicitly managed fail points, and push
the parentheses around the location for simple fail points into the
location string.  This makes the print on fail point set more
consistent between the two versions.

Also fix up fail.h a little for style(9): only use one of sys/param.h
and sys/types.h, and use the existing __XSTRING() macro instead of
rolling our own.  Also fix up a few tabs on changed and nearby lines.

Lastly, since KFAIL_POINT_{BEGIN,END} are not meant for use outside
this file, just eliminate the macros entirely.

MFC after: 1 week
2010-12-21 18:23:03 +00:00
Andrey V. Elsukov
5c98f5b0da Check number of arguments before trying to read arg0. This prevents access
to arg0 and dumping core when `gpart bootcode` called without arguments.
2010-12-21 17:24:32 +00:00
Matthew D Fleming
d26b794591 Move the fail_point_entry definition from fail.h to kern_fail.c, which
allows putting the enumeration constants of fail point types with the
text string that matches them.

MFC after:	1 week
2010-12-21 16:29:58 +00:00
Lawrence Stewart
a8d61afdc2 - Introduce the Hhook (Helper Hook) KPI. The KPI is closely modelled on pfil(9),
and in many respects can be thought of as a more generic superset of pfil.
  Hhook provides a way for kernel subsystems to export hook points that Khelp
  modules can hook to provide enhanced or new functionality to the kernel. The
  KPI has been designed to ensure hook points pose no noticeable overhead when
  no hook functions are registered.

- Introduce the Khelp (Kernel Helpers) KPI. Khelp provides a framework for
  managing Khelp modules, which indirectly use the Hhook KPI to register their
  hook functions with hook points of interest within the kernel. Khelp modules
  aim to provide a structured way to dynamically extend the kernel at runtime in
  an ABI preserving manner. Depending on the subsystem providing hook points, a
  Khelp module may be able to associate per-object data for maintaining relevant
  state between hook calls.

- pjd's Object Specific Data (OSD) KPI is used to manage the per-object data
  allocated to Khelp modules. Create a new "OSD_KHELP" OSD type for use by the
  Khelp framework.

- Bump __FreeBSD_version to 900028 to mark the introduction of the new KPIs.

In collaboration with:	David Hayes <dahayes at swin edu au> and
			Grenville Armitage <garmitage at swin edu au>
Sponsored by:	FreeBSD Foundation
Reviewed by:	bz, others along the way
MFC after:	3 months
2010-12-21 13:45:29 +00:00
John Baldwin
a11df0cbe6 Only use the BIOS-supplied IRQ for the atkbdc device for a child atkbd
device.  Specifically, do not reuse it for a child psm device.

Tested by:	many
2010-12-21 12:49:37 +00:00
Alan Cox
c2f86e4192 The local variable "rv" is still required by vm_fault_hold_user_pages(). 2010-12-20 23:41:31 +00:00
Jilles Tjoelker
6a6760db7f sh: Make warnings in the printf builtin non-fatal, like in the program.
The #define for warnx now behaves much like the libc function (except that
it uses sh command name and output).

Also, it now uses C99 __VA_ARGS__ so there is no need for three different
macros for 0, 1 or 2 parameters.
2010-12-20 23:06:57 +00:00
Shteryana Shopova
cf90ea94a0 Unbreak the build by temprorarily not using include directives in
bsnmpd(1)' def files, until bsd.snmpmod.mk & Makefiles are fixed to
pass proper include path flags to gensnmptree.
2010-12-20 22:56:50 +00:00
Alan Cox
acd11c7499 Introduce vm_fault_hold() and use it to (1) eliminate a long-standing race
condition in proc_rwmem() and to (2) simplify the implementation of the
cxgb driver's vm_fault_hold_user_pages().  Specifically, in proc_rwmem()
the requested read or write could fail because the targeted page could be
reclaimed between the calls to vm_fault() and vm_page_hold().

In collaboration with:	kib@
MFC after:	6 weeks
2010-12-20 22:49:31 +00:00