Commit Graph

179145 Commits

Author SHA1 Message Date
Pawel Jakub Dawidek
4881a5950e Don't treat pointers as booleans. 2013-02-17 11:47:30 +00:00
Pawel Jakub Dawidek
de26549841 Remove redundant parenthesis. 2013-02-17 11:47:01 +00:00
Pawel Jakub Dawidek
5d48c4778a Remove redundant space. 2013-02-17 11:36:41 +00:00
Pawel Jakub Dawidek
cbc9087cba Remove trailing spaces. 2013-02-17 11:36:13 +00:00
Luigi Rizzo
f8e4e36a0a update the netmap example programs merging some common code in nm_util.c
pkt-gen now implements several functions (unlimited transmit, receive,
ping-pong) and can operate on a 'tap' device.
2013-02-17 04:43:22 +00:00
David Xu
17001e0b94 Make more code be protected by internal mutex, and now it is fork-safe, in
error case, the file exclusive lock is now released as soon as possible,
in previous code, child process can still hold the exclusive lock.
2013-02-17 02:52:42 +00:00
Marcel Moolenaar
d7aa5f02d0 In kthr.c, obtain the address of the PCB for threads that were running
on a core, when the core was stopped, by calling kgdb_trgt_core_pcb().
This has 2 advantages:
1.  We don't need to include a machine-specific header anymore and as
    such kthr.c is truly machine independent. This allows the code to
    be used in a cross-debugger.
2.  We don't need to lookup stoppcbs in generic code when it's an
    inherently target-spicific symbol. It does not exist for ia64.

Implement kgdb_trgt_core_pcb() for all architectures, except ia64, by
calling a common function called kgdb_trgt_stop_pcb(). This function
differs from kgdb_trgt_core_pcb() in that it gets the size of the PCB
structure as an argument and as such remains machine independent.

On ia64 the PCB for stopped cores is in the PCPU structure itself.
This for better scaling. The implementation of kgdb_trgt_core_pcb()
for ia64 uses the cpuid_to_pcpu[] array to to obtain the address of
the PCB structure.
2013-02-17 02:15:19 +00:00
Oleksandr Tymoshenko
acbaa69f31 Remove accidentally committed debug panic(9) call 2013-02-17 01:34:25 +00:00
Marcel Moolenaar
51a325a7f9 Close a race relating to setting the PCPU pointer (r13). Register r13
points to the TLS in user space and points to the PCPU structure in
the kernel. The race is the result of having the exception handler on
the one hand and the RPC system call entry on the other. The EPC
syscall path is non-atomic in that interrupts are enabled while the
two stacks are switched. The register stack is switched last as that
is the stack used to determine whether we're going back to user space
by the exception handler. If we go back to user space, we restore r13,
otherwise we leave r13 alone. The EPC syscall path however set r13 to
the PCPU structure *before* switching the register stack, which means
that there was a window in which the exception handler would restore
r13 when it was already pointing to the PCPU structure. This is fatal
when the exception happened on CPU x, but left from the exception on
anotehr CPU. In that case r13 would point to the PCPU of the CPU the
thread was running on. This immediately results in getting the wrong
value for curthread.
The fix is to make sure we assign r13 *after* we set ar.bspstore to
point to the kernel register stack for the thread.
2013-02-17 00:51:34 +00:00
Oleksandr Tymoshenko
d3d7f709ce - Add hw.bcm2835.sdhci.hs tunable to enable/disable highspeed mode in
SDHCI driver
  Suggested by: Daisuke Aoyama

- Set initilization sequence frequency to 8MHz. It should fix Data CRC
    errors. Standard requires initialization sequence to be executed
    at 400KHz but on this hardware low frequncies seems to cause
    Data CRC errors.

    Value was derived from analyzing hardware signals after
    Raspberry Pi is powered up. Before any data is read though DATA line
    adapter's clock frequency is changed to 8MHz.

    Modern cards should function fine at 8MHz but for older MMC cards it
    can be overriden by setting hw.bcm2835.sdhci.min_freq tunable.
2013-02-17 00:23:42 +00:00
Oleksandr Tymoshenko
7337a22fb0 Disable debug accidentally enabled by previous commit 2013-02-16 23:52:14 +00:00
Oleksandr Tymoshenko
57677a3a4a Various timing-related fixes:
- Replace divisor numbers with more descirptive names
- Properly calculate minimum frequency for SDHCI 3.0
- Properly calculate frequency for SDHCI 3.0 in mmcbr_set_clock
- Add min_freq method to sdhci_if.m and provide default
  implementation.  By re-implementing this method hardware
  drivers can control frequency controller operates when
  executing initialization sequence
2013-02-16 23:12:06 +00:00
Pawel Jakub Dawidek
1f2ce2a086 Put one file per line so it is easier to read diffs against those files. 2013-02-16 22:21:46 +00:00
Dag-Erling Smørgrav
c81beee50e #if out unused functions which trip up gcc but not clang. 2013-02-16 22:16:14 +00:00
Marcel Moolenaar
cb35030ab3 Return EFAULT when the address is not a kernel virtual address. 2013-02-16 21:46:27 +00:00
Ian Lepore
7a4accc1f0 In _bus_dmamap_addseg(), the return value must be zero for error, or the size
actually added to the segment (possibly smaller than the requested size if
boundary crossings had to be avoided).
2013-02-16 20:43:16 +00:00
Dimitry Andric
a7449e3cca Since clang 3.2 now has an option to suppress warnings about implicitly
promoted K&R parameters, remove the workarounds added for sendmail
components in r228558.

MFC after:	1 week
2013-02-16 20:17:31 +00:00
Adrian Chadd
1844ff169f * Reduce the PCU lock overhead a little by only re-acquiring it if we
actually do have to reinitialise the RX side of things after an RX
  descriptor EOL error.

* Revert a change of mine from quite a while ago - don't shortcut the
  RX initialisation path.  There's a RX FIFO bug in the earlier chips
  (I'm not sure when it was fixed in this series, but it's fixed
  with the AR9380 and later) which causes the same RX descriptor to
  be written to over and over.  This causes the descriptor to be
  marked as "done", and this ends up causing the whole RX path to
  go very strange.  This should fixed the "kickpcu; handled X packets"
  message spam where "X" is consistently small.
2013-02-16 19:11:57 +00:00
Kirk McKusick
7839b23f00 The UFS2 filesystem allocates new blocks of inodes as they are needed.
When a cylinder group runs short of inodes, a new block for inodes is
allocated, zero'ed, and written to the disk. The zero'ed inodes must
be on the disk before the cylinder group can be updated to claim them.
If the cylinder group claiming the new inodes were written before the
zero'ed block of inodes, the system could crash with the filesystem in
an unrecoverable state.

Rather than adding a soft updates dependency to ensure that the new
inode block is written before it is claimed by the cylinder group
map, we just do a barrier write of the zero'ed inode block to ensure
that it will get written before the updated cylinder group map can
be written. This change should only slow down bulk loading of newly
created filesystems since that is the primary time that new inode
blocks need to be created.

Reported by: Robert Watson
Reviewed by: kib
Tested by:   Peter Holm
2013-02-16 15:11:40 +00:00
Kirk McKusick
2bc1a1fe5c Add barrier write capability to the VFS buffer interface. A barrier
write is a disk write request that tells the disk that the buffer
being written must be committed to the media along with any writes
that preceeded it before any future blocks may be written to the drive.

Barrier writes are provided by adding the functions bbarrierwrite
(bwrite with barrier) and babarrierwrite (bawrite with barrier).

Following a bbarrierwrite the client knows that the requested buffer
is on the media. It does not ensure that buffers written before that
buffer are on the media. It only ensure that buffers written before
that buffer will get to the media before any buffers written after
that buffer. A flush command must be sent to the disk to ensure that
all earlier written buffers are on the media.

Reviewed by: kib
Tested by:   Peter Holm
2013-02-16 14:51:30 +00:00
Dimitry Andric
5f33039834 Import change 40eebf235370b6fe6353784ccf01ab92eed062a5 from upstream wpa:
From: Jouni Malinen <j@w1.fi>
  Date: Fri, 15 Jul 2011 13:42:06 +0300
  Subject: [PATCH] MD5: Fix clearing of temporary stack memory to use correct length

  sizeof of the structure instead of the pointer was supposed to be used
  here. Fix this to clear the full structure at the end of MD5Final().

Found by:	clang ToT
Reviewed by:	rpaulo
MFC after:	3 days
2013-02-16 12:52:40 +00:00
Dimitry Andric
d21f31a1a7 Fix two instances of undefined behaviour in contrib/nvi.
Found by:	clang ToT
Obtained from:	NetBSD
Reviewed by:	jh
MFC after:	3 days
2013-02-16 12:48:06 +00:00
Dimitry Andric
a9fb907e0b In contrib/opie/opiekey.c, use the correct length to zero the secret.
Found by:	clang ToT
Reviewed by:	delphij
MFC after:	3 days
2013-02-16 12:45:57 +00:00
David Xu
a9c09aee21 Simplify code by using flag O_EXLOCK.
PR: kern/175674
2013-02-16 06:07:07 +00:00
Adrian Chadd
8c67042b72 Fix an incorrect sizeof()
Spotted by:	clang

Submitted by:	dim
2013-02-16 00:12:21 +00:00
Dimitry Andric
ca83b97532 Fix undefined behaviour in usr.bin/mail/util.c.
Reported by:	deeptech71@gmail.com
MFC after:	3 days
2013-02-15 23:59:57 +00:00
Ian Lepore
3cbc324925 Set map->pmap before _bus_dmamap_count_pages() tries to use it.
Obtained from:	Thomas Skibo <ThomasSkibo@sbcglobal.net>
2013-02-15 23:41:47 +00:00
Dimitry Andric
74870cdedf Pull in r175057 from upstream llvm trunk:
X86: Disable generation of rep;movsl when %esi is used as a base pointer.

  This happens when there is both stack realignment and a dynamic alloca in the
  function. If we overwrite %esi (rep;movsl uses fixed registers) we'll lose the
  base pointer and the next register spill will write into oblivion.

  Fixes PR15249 and unbreaks firefox on i386/freebsd. Mozilla uses dynamic allocas
  and freebsd a 4 byte stack alignment.

MFC after:	1 week
2013-02-15 23:12:58 +00:00
Dimitry Andric
cc636314f0 Regenerate libstdc++'s config.h, synchronizing it with our current
almost-C99 headers.

MFC after:	1 week
2013-02-15 23:12:35 +00:00
Jung-uk Kim
835ef82e3b Revert r227528 and r227787. This hack is no longer necessary since r233580. 2013-02-15 22:58:44 +00:00
Jung-uk Kim
00a54dfb1c Consistently use round_page(x) rather than roundup(x, PAGE_SIZE). There is
no functional change.
2013-02-15 22:43:08 +00:00
Dag-Erling Smørgrav
2787e39aaa Upgrade to 1.6.16 2013-02-15 21:49:12 +00:00
Dag-Erling Smørgrav
6709dfe57a Add generated files 2013-02-15 21:33:05 +00:00
Dag-Erling Smørgrav
9c9425b781 fix leftover from an earlier experiment 2013-02-15 21:31:01 +00:00
Oleksandr Tymoshenko
aaa54dd138 Enable USB1 (which is EHCI0) for Allwinner A10
Tested by: ganbold@
2013-02-15 21:29:03 +00:00
Oleksandr Tymoshenko
e589740522 Fix copy-paste error in bus_space_unmap argument
While I'm at it - fix some style(9) issues

Submitted by:	Mikael Urankar
2013-02-15 21:24:21 +00:00
Jung-uk Kim
9c48c75ed6 Merge ACPICA 20130214. 2013-02-15 20:36:28 +00:00
Jung-uk Kim
6bb10c5e2f Import ACPICA 20130215. 2013-02-15 19:12:35 +00:00
Neel Natu
74f80b236d Advertise PCI-E capability in the hostbridge device presented to the guest.
FreeBSD wants to see this capability in at least one device in the PCI
hierarchy before it allows use of MSI or MSI-X.

Obtained from:	NetApp
2013-02-15 18:41:36 +00:00
Ian Lepore
a1137de941 Add PPS_CANWAIT support for time_pps_fetch(). This adds support for all three
blocking modes described in section 3.4.3 of RFC 2783, allowing the caller
to retrieve the most recent values without blocking, to block for a specified
time, or to block forever.

Reviewed by:	discussion on hackers@
2013-02-15 18:30:32 +00:00
Dag-Erling Smørgrav
421ccedd26 Manually add the correct text for the LDNS and LDNS_UTILS options.
There seems to be a bug in makeman that causes it to misunderstand
the relationship between LDNS_UTILS and BIND_UTILS.
2013-02-15 15:09:24 +00:00
Dag-Erling Smørgrav
4e7b60a46c The relationship between LDNS_UTILS and BIND_UTILS was inverted. 2013-02-15 14:22:23 +00:00
Sergey Kandaurov
d7ffa24831 vn_io_faults_cnt:
- use u_long consistently
- use SYSCTL_ULONG to match the type of variable

Reviewed by:	kib
MFC after:	1 week
2013-02-15 14:22:05 +00:00
Dag-Erling Smørgrav
0acc2e1d2b Update src.conf(5) up to but not including my LDNS commits. 2013-02-15 14:17:27 +00:00
Dag-Erling Smørgrav
5ab2740777 Oops, I flipped LDNS_UTILS but forgot to update the description. 2013-02-15 13:57:51 +00:00
Dag-Erling Smørgrav
2f10c3e258 import ldns 1.6.16 2013-02-15 13:51:54 +00:00
Dag-Erling Smørgrav
7b5038d71c Import LDNS and build it as an internal library. 2013-02-15 13:44:18 +00:00
Sergey Kandaurov
ab15d8039e Add support of passing SCM_BINTIME ancillary data object for PF_LOCAL
sockets.

PR:		kern/175883
Submitted by:	Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua>
Discussed with:	glebius, phk
MFC after:	2 weeks
2013-02-15 13:00:20 +00:00
Jilles Tjoelker
f108ef834e setbuf(3): Remove bugs section about ancient versions of BSD. 2013-02-15 10:44:07 +00:00
Sergey Kandaurov
fa358104b1 Remove write only assignments and thus fix the build after struct bufarea
TAILQ conversion (r246812).
2013-02-15 09:10:01 +00:00