- 26 11月, 2009 2 次提交
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由 Ingo Molnar 提交于
This warning: [ 847.140022] rb_producer D 0000000000000000 5928 519 2 0x00000000 [ 847.203627] BUG: using smp_processor_id() in preemptible [00000000] code: khungtaskd/517 [ 847.207360] caller is show_stack_log_lvl+0x2e/0x241 [ 847.210364] Pid: 517, comm: khungtaskd Not tainted 2.6.32-rc8-tip+ #13761 [ 847.213395] Call Trace: [ 847.215847] [<ffffffff81413bde>] debug_smp_processor_id+0x1f0/0x20a [ 847.216809] [<ffffffff81015eae>] show_stack_log_lvl+0x2e/0x241 [ 847.220027] [<ffffffff81018512>] show_stack+0x1c/0x1e [ 847.223365] [<ffffffff8107b7db>] sched_show_task+0xe4/0xe9 [ 847.226694] [<ffffffff8112f21f>] check_hung_task+0x140/0x199 [ 847.230261] [<ffffffff8112f4a8>] check_hung_uninterruptible_tasks+0x1b7/0x20f [ 847.233371] [<ffffffff8112f500>] ? watchdog+0x0/0x50 [ 847.236683] [<ffffffff8112f54e>] watchdog+0x4e/0x50 [ 847.240034] [<ffffffff810cee56>] kthread+0x97/0x9f [ 847.243372] [<ffffffff81012aea>] child_rip+0xa/0x20 [ 847.246690] [<ffffffff81e43494>] ? restore_args+0x0/0x30 [ 847.250019] [<ffffffff81e43083>] ? _spin_lock+0xe/0x10 [ 847.253351] [<ffffffff810cedbf>] ? kthread+0x0/0x9f [ 847.256833] [<ffffffff81012ae0>] ? child_rip+0x0/0x20 Happens because on preempt-RCU, khungd calls show_stack() with preemption enabled. Make sure we are not preemptible while walking the IRQ and exception stacks on 64-bit. (32-bit stack dumping is preemption safe.) Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Make the initialization more readable, plus tidy up a few small visual details as well. No change in functionality. LKML-Reference: <new-submission> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 24 11月, 2009 1 次提交
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由 Borislav Petkov 提交于
display_cacheinfo() doesn't display anything anymore and it is used to detect CPU cache sizes. Rename it accordingly. Signed-off-by: NBorislav Petkov <petkovbb@gmail.com> LKML-Reference: <20091121130145.GA31357@liondog.tnic> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 23 11月, 2009 1 次提交
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由 Jan Beulich 提交于
init_task doesn't get its stack end location set to STACK_END_MAGIC, and hence the message is confusing rather than helpful in this case. Signed-off-by: NJan Beulich <jbeulich@novell.com> LKML-Reference: <4B06AEFE02000078000211F4@vpn.id2.novell.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 14 11月, 2009 3 次提交
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由 Ingo Molnar 提交于
Yinghai Lu noticed that this commit: 0388423d: x86: Minimise printk spew from per-vendor init code mistakenly left out the initialization of cpu_devs[] in the !PROCESSOR_SELECT case. Fix it. Reported-by: NYinghai Lu <yinghai@kernel.org> Cc: Dave Jones <davej@redhat.com> LKML-Reference: <20091113203000.GA19160@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Roland Dreier 提交于
As Dave Jones said about the output in intel_cacheinfo.c: "They aren't useful, and pollute the dmesg output a lot (especially on machines with many cores). Also the same information can be trivially found out from userspace." Give the generic display_cacheinfo() function the same treatment. Signed-off-by: NRoland Dreier <rolandd@cisco.com> Acked-by: NDave Jones <davej@redhat.com> Cc: Mike Travis <travis@sgi.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Tejun Heo <tj@kernel.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Yinghai Lu <yinghai@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <adaocn6dp99.fsf_-_@roland-alpha.cisco.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dave Jones 提交于
In the default case where the kernel supports all CPU vendors, we currently print out a bunch of not useful messages on every system. 32-bit: KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD NSC Geode by NSC Cyrix CyrixInstead Centaur CentaurHauls Transmeta GenuineTMx86 Transmeta TransmetaCPU UMC UMC UMC UMC 64-bit: KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD Centaur CentaurHauls Given that "what CPUs does the kernel support" isn't useful for the "support everything" case, we can suppress these printk's. Signed-off-by: NDave Jones <davej@redhat.com> LKML-Reference: <20091113203000.GA19160@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 13 11月, 2009 1 次提交
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由 Dave Jones 提交于
They aren't really useful, and they pollute the dmesg output a lot (especially on machines with many cores). Also the same information can be trivially found out from userspace. Reported-by: NMike Travis <travis@sgi.com> Signed-off-by: NDave Jones <davej@redhat.com> Acked-by: NH. Peter Anvin <hpa@zytor.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Tejun Heo <tj@kernel.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Yinghai Lu <yinghai@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20091112231542.GA7129@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 04 11月, 2009 1 次提交
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由 Rusty Russell 提交于
Ingo wants the certainty of a static cpumask (rather than a cpumask_var_t), but cpumask_t will some day be undefined to avoid on-stack declarations. This is what DECLARE_BITMAP/to_cpumask() is for. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> LKML-Reference: <200911031453.52394.rusty@rustcorp.com.au> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 11月, 2009 15 次提交
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由 Arjan van de Ven 提交于
show_regs() is called as a mini BUG() equivalent in some places, specifically for the "scheduling while atomic" case. Unfortunately right now it does not print a Code: line unlike a real bug/oops. This patch changes the x86 implementation of show_regs() so that it calls the same function as oopses do to print the registers as well as the Code: line. Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> LKML-Reference: <20091102165915.4a980fc0@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix readdir corner cases 9p: fix readlink 9p: fix a small bug in readdir for long directories
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: Revert "[IA64] fix percpu warnings" [IA64] fix percpu warnings [IA64] SMT friendly version of spin_unlock_wait() [IA64] use printk_once() unaligned.c/io_common.c [IA64] Require SAL 3.2 in order to do extended config space ops [IA64] unsigned cannot be less than 0 in sn_hwperf_ioctl() [IA64] Restore registers in the stack on INIT [IA64] Re-implement spinaphores using ticket lock concepts [IA64] Squeeze ticket locks back into 4 bytes.
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由 Linus Torvalds 提交于
This reverts commit d0646f7b, as requested by Eric Sandeen. It can basically cause an ext4 filesystem to miss recovery (and thus get mounted with errors) if the journal checksum does not match. Quoth Eric: "My hand-wavy hunch about what is happening is that we're finding a bad checksum on the last partially-written transaction, which is not surprising, but if we have a wrapped log and we're doing the initial scan for head/tail, and we abort scanning on that bad checksum, then we are essentially running an unrecovered filesystem. But that's hand-wavy and I need to go look at the code. We lived without journal checksums on by default until now, and at this point they're doing more harm than good, so we should revert the default-changing commit until we can fix it and do some good power-fail testing with the fixes in place." See http://bugzilla.kernel.org/show_bug.cgi?id=14354 for all the gory details. Requested-by: NEric Sandeen <sandeen@redhat.com> Cc: Theodore Tso <tytso@mit.edu> Cc: Alexey Fisher <bug-track@fisher-privat.net> Cc: Maxim Levitsky <maximlevitsky@gmail.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Mathias Burén <mathias.buren@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: ensure initial page tables are setup for SMP systems ARM: 5776/1: Check compiler version and EABI support when adding ARM unwind support. ARM: 5774/1: Fix Realview ARM1176PB board reboot ARM: Fix errata 411920 workarounds ARM: Fix sparsemem with SPARSEMEM_EXTREME enabled ARM: Use GFP_DMA only for masks _less_ than 32-bit ARM: integrator: allow Integrator to be built with highmem ARM: Fix signal restart issues with NX and OABI compat
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Don't check invalid HP pin ALSA: dummy - Fix descriptions of pcm_substreams parameter ALSA: pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (sound) ALSA: hda: Use quirk mask for Dell Inspiron Mini9/Vostro A90 using ALC268 sound: via82xx: deactivate DXS controls of inactive streams ALSA: snd-usb-caiaq: Bump version number to 1.3.20 ALSA: snd-usb-caiaq: Lock on stream start/unpause ALSA: snd-usb-caiaq: Missing lock around use of buffer positions ALSA: sound/parisc: Move dereference after NULL test ALSA: sound: Move dereference after NULL test and drop unnecessary NULL tests ALSA: hda_intel: Add the Linux device ID for NVIDIA HDA controller ALSA: pcsp - Fix nforce workaround ALSA: SND_CS5535AUDIO: Remove the X86 platform dependency ASoC: Amstrad Delta: add info about the line discipline requirement to Kconfig help text ASoC: Fix possible codec_dai->ops NULL pointer problems ALSA: hda - Fix capture source checks for ALC662/663 codecs ASoC: Serialize access to dapm_power_widgets()
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由 Linus Torvalds 提交于
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Fix spurious wakeup for requeue_pi really
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由 Linus Torvalds 提交于
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Remove -Wcast-align perf tools: Fix compatibility with libelf 0.8 and autodetect perf events: Don't generate events for the idle task when exclude_idle is set perf events: Fix swevent hrtimer sampling by keeping track of remaining time when enabling/disabling swevent hrtimers
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由 Linus Torvalds 提交于
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Remove cpu arg from the rb_time_stamp() function tracing: Fix comment typo and documentation example tracing: Fix trace_seq_printf() return value tracing: Update *ppos instead of filp->f_pos
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由 Linus Torvalds 提交于
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Make EFI RTC function depend on 32bit again x86-64: Fix register leak in 32-bit syscall audting x86: crash_dump: Fix non-pae kdump kernel memory accesses x86: Side-step lguest problem by only building cmpxchg8b_emu for pre-Pentium x86: Remove STACKPROTECTOR_ALL
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由 Bo Liu 提交于
In try_to_unuse(), swcount is a local copy of *swap_map, including the SWAP_HAS_CACHE bit; but a wrong comparison against swap_count(*swap_map), which masks off the SWAP_HAS_CACHE bit, succeeded where it should fail. That had the effect of resetting the mm from which to start searching for the next swap page, to an irrelevant mm instead of to an mm in which this swap page had been found: which may increase search time by ~20%. But we're used to swapoff being slow, so never noticed the slowdown. Remove that one spurious use of swap_count(): Bo Liu thought it merely redundant, Hugh rewrote the description since it was measurably wrong. Signed-off-by: NBo Liu <bo-liu@hotmail.com> Signed-off-by: NHugh Dickins <hugh.dickins@tiscali.co.uk> Reviewed-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
In commit c1c7af60 ("drm/i915: force mode set at lid open time") the intel graphics driver was taught to restore the LVDS mode on lid open. That caused problems with interaction with the suspend/resume code, which commonly runs at the same time (suspend is often caused by the lid close event, while lid open is commonly a resume event), which was worked around with in commit 06891e27 ("drm/i915: fix suspend/resume breakage in lid notifier"). However, in the meantime the lid event code had also grown a user event notifier (commit 06324194: "drm/i915: generate a KMS uevent at lid open/close time"), and now _that_ causes problems with suspend/resume and some versions of Xorg reacting to those uevents by setting the mode. So this effectively reverts that commit 06324194, and makes the lid open protection logic against suspend/resume more explicit. This fixes at least one laptop. See http://bugzilla.kernel.org/show_bug.cgi?id=14484 for more details. Acked-by: NJesse Barnes <jbarnes@virtuousgeek.org> Cc: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Tony Luck 提交于
This reverts commit b94b0808. genksyms currently cannot handle complicated types for exported percpu variables. Drop this patch for now as it prevents a module from being loaded on sn2 systems: xpc: no symbol version for per_cpu____sn_cnodeid_to_nasid xpc: Unknown symbol per_cpu____sn_cnodeid_to_nasid Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Russell King 提交于
Mapping the same memory using two different attributes (memory type, shareability, cacheability) is unpredictable. During boot, we encounter a situation when we're updating the kernel's page tables which can lead to dirty cache lines existing in the cache which are subsequently missed. This causes stack corruption, and therefore a crash. Therefore, ensure that the shared and cacheability settings matches the configuration that will be used later; this together with the restriction in early_cachepolicy() ensures that we won't create a mismatch during boot. Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Claudio Scordino 提交于
ARM unwind is known to compile only with EABI and not-buggy compilers. The problem is not the unwinding information but the -fno-frame-pointer option added as a result of !CONFIG_FRAME_POINTER. Now we check the compiler and raise a #warning in case of wrong compiler. Signed-off-by: NClaudio Scordino <claudio@evidence.eu.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 02 11月, 2009 9 次提交
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由 Takashi Iwai 提交于
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由 Takashi Iwai 提交于
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由 Eric Van Hensbergen 提交于
The patch below also addresses a couple of other corner cases in readdir seen with a large (e.g. 64k) msize. I'm not sure what people think of my co-opting of fid->aux here. I'd be happy to rework if there's a better way. When the size of the user supplied buffer passed to readdir is smaller than the data returned in one go by the 9P read request, v9fs_dir_readdir() currently discards extra data so that, on the next call, a 9P read request will be issued with offset < previous offset + bytes returned, which voilates the constraint described in paragraph 3 of read(5) description. This patch preseves the leftover data in fid->aux for use in the next call. Signed-off-by: NJim Garlick <garlick@llnl.gov> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Martin Stava 提交于
I do not know if you've looked on the patch, but unfortunately it is incorrect. A suggested better version is in this email (the old version didn't work in case the user provided buffer was not long enough - it incorrectly appended null byte on a position of last char, and thus broke the contract of the readlink method). However, I'm still not sure this is 100% correct thing to do, I think readlink is supposed to return buffer without last null byte in all cases, but we do return last null byte (even the old version).. on the other hand it is likely unspecified what is in the remaining part of the buffer, so null character may be fine there ;): Signed-off-by: NMartin Stava <martin.stava@gmail.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Martin Stava 提交于
Here is a proposed patch for bug in readdir. Listing of dirs with many files fails without this patch. Signed-off-by: NMartin Stava <martin.stava@gmail.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Takashi Iwai 提交于
alc_automute_pin() might be called even if any HP pin is defined, and it will result in verbs with NID=0. This patch adds a check for the validity of HP widget before issuing any verbs. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Now up to 128 substreams are supported. Reported-by: NAdrian Bridgett <adrian@smop.co.uk> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Dominik Brodowski 提交于
Convert PCMCIA drivers to use the dynamic debug infrastructure, instead of requiring manual settings of PCMCIA_DEBUG. Also, remove all usages of the CS_CHECK macro and replace them with proper Linux style calling and return value checking. The extra error reporting may be dropped, as the PCMCIA core already complains about any (non-driver-author) errors. Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Daniel T Chen 提交于
BugLink: https://bugs.launchpad.net/bugs/368629 We should use a quirk mask for these Dell Inspiron Mini9s and Vostro A90s, as the model=dell quirk appears to enable audio on them. Signed-off-by: NDaniel T Chen <crimsun@ubuntu.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 01 11月, 2009 7 次提交
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由 Philby John 提交于
This is the fix for proper reboot of Realview ARM1176PB board when issuing the reboot command. Setting the eighth bit of control register SYS_RESETCTL to 1 to force a soft reset. arch_reset() is modified for realview machines to call machine specific reset function pointers. Signed-off-by: NPhilby John <pjohn@in.mvista.com> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: Staging: fix wireless drivers depends Staging: wireless drivers Kconfig change Staging: android: mark subsystem as broken Staging: remove stlc45xx driver Staging: rtl8187se/rtl8192e/rtl8192su: allow module unload Staging: vt6656: fix the memory free bug in vntwusb_disconnect() Staging: Panel: prevent driver from calling misc_deregister twice on same ressource Staging: hv: fix oops in vmbus - missing #include Staging: hv: fix oops in vmbus - netvsc list_head Staging: hv: fix oops in vmbus - udev events Staging: hv: Fix vmbus load hang caused by faulty data packing Staging: hv: Fix null pointer error after vmbus loading Staging: hv TODO patches
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: fsl_udc_core: Fix kernel oops on module removal USB: option: TLAYTECH TUE800 support USB: r8a66597-hcd: fix cannot detect a device when uses_new_polling is set USB: serial: sierra driver autopm fixes USB: serial: sierra driver send_setup() autopm fix USB: rndis_host: debug info clobbered before it is logged
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: tty: Mark generic_serial users as BROKEN
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Documentation: ABI: /sys/devices/system/cpu/cpu#/node Documentation: ABI: /sys/devices/system/cpu/cpuidle/ Documentation: ABI: /sys/devices/system/cpu/sched_[mc|smt]_power_savings Documentation: ABI: /sys/devices/system/cpu/cpu#/ topology files Documentation: ABI: /sys/devices/system/cpu/ topology files Documentation: ABI: document /sys/devices/system/cpu/ Documentation: ABI: rename sysfs-devices-cache_disable properly Driver core: allow certain drivers prohibit bind/unbind via sysfs Driver core: fix driver_register() return value
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git://git390.marist.edu/pub/scm/linux-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] smp: fix sigp sense handling [S390] smp: fix sigp stop handling [S390] cputime: fix overflow on 31 bit systems [S390] call home: fix string length handling [S390] call home: fix error handling in init function [S390] smp: fix prefix handling of offlined cpus [S390] s/r: cmm resume fix [S390] call home: fix local buffer usage in proc handler
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git://git.kernel.org/pub/scm/fs/xfs/xfs由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs: xfs: fix xfs_quota remove error xfs: free temporary cursor in xfs_dialloc
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