- 29 3月, 2008 5 次提交
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由 Sebastian Siewior 提交于
This has been forgotten in commit f5bbdacc ("[MTD] NAND Modularize read function") and nobody compiled the driver. Signed-off-by: NSebastian Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Joern Engel <joern@wh.fh-wedel.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
I believe http://bugzilla.kernel.org/show_bug.cgi?id=10318 is a false positive. There's no way in which networking will be using highmem pages here, so it won't be taking the KM_USER0 kmap slot, so there's no point in performing these checks. Cc: Pawel Staszewski <pstaszewski@artcom.pl> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: NChristoph Lameter <clameter@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> [ Really sad. We lose almost all real-life coverage of the debug tests with this patch. Now it will only report problems for the cases where people actually end up using a HIGHMEM page, not when they just _might_ use one. - Linus ] Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Roland Dreier 提交于
Because of a typo in iwch_accept_cr(), the cxgb3 connection handling code programs the hardware IRD (incoming RDMA read queue depth) with the value that is passed in for the ORD (outgoing RDMA read queue depth). In particular this means that if an application passes in IRD > 0 and ORD = 0 (which is a completely sane and valid thing to do for an app that expects only incoming RDMA read requests), then the hardware will end up programmed with IRD = 0 and the app will fail in a mysterious way. Fix this by using "ep->ird" instead of "ep->ord" in the intended place. Signed-off-by: NRoland Dreier <rolandd@cisco.com> Acked-by: NSteve Wise <swise@opengridcomputing.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix missed hardware breakpoints across multiple threads
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由 Ingo Molnar 提交于
Revert commit 1192aeb9 ("ACPI: drivers/acpi: elide a non-zero test on a result that is never 0") because it turns out that thermal_cooling_device_register() does actually return NULL if CONFIG_THERMAL is turned off (then the routine turns into a dummy inline routine in the header files that returns NULL unconditionally). This was found with randconfig testing, causing a crash during bootup: initcall 0x78878534 ran for 13 msecs: acpi_button_init+0x0/0x51() Calling initcall 0x78878585: acpi_fan_init+0x0/0x2c() BUG: unable to handle kernel NULL pointer dereference at 00000000 IP: [<782b8ad0>] acpi_fan_add+0x7d/0xfd *pde = 00000000 Oops: 0000 [#1] Modules linked in: Pid: 1, comm: swapper Not tainted (2.6.25-rc7-sched-devel.git-x86-latest.git #14) EIP: 0060:[<782b8ad0>] EFLAGS: 00010246 CPU: 0 EIP is at acpi_fan_add+0x7d/0xfd EAX: b787c718 EBX: b787c400 ECX: b782ceb4 EDX: 00000007 ESI: 00000000 EDI: b787c6f4 EBP: b782cee0 ESP: b782cecc DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 Process swapper (pid: 1, ti=b782c000 task=b7846000 task.ti=b782c000) Stack: b787c459 00000000 b787c400 78790888 b787c60c b782cef8 782b6fb8 ffffffda b787c60c 00000000 78790958 b782cf0c 783005d7 b787c60c 78790958 78790584 b782cf1c 783007f6 b782cf28 00000000 b782cf40 782ffc4a 78790958 b794d558 Call Trace: [<782b6fb8>] ? acpi_device_probe+0x3e/0xdb [<783005d7>] ? driver_probe_device+0x82/0xfc [<783007f6>] ? __driver_attach+0x3a/0x70 [<782ffc4a>] ? bus_for_each_dev+0x3e/0x60 [<7830048c>] ? driver_attach+0x14/0x16 [<783007bc>] ? __driver_attach+0x0/0x70 [<7830006a>] ? bus_add_driver+0x9d/0x1b0 [<783008c3>] ? driver_register+0x47/0xa3 [<7813db00>] ? timespec_to_ktime+0x9/0xc [<782b7331>] ? acpi_bus_register_driver+0x3a/0x3c [<78878592>] ? acpi_fan_init+0xd/0x2c [<78863656>] ? kernel_init+0xac/0x1f9 [<788635aa>] ? kernel_init+0x0/0x1f9 [<78114563>] ? kernel_thread_helper+0x7/0x10 ======================= Code: 6e 78 e8 57 44 e7 ff 58 e9 93 00 00 00 8b 55 f0 8d bb f4 02 00 00 80 4b 2d 10 8b 03 e8 87 cb ff ff 8d 83 18 03 00 00 80 63 2d ef <ff> 35 00 00 00 00 50 68 e8 9c 6e 78 e8 22 44 e7 ff b9 b6 9c 6e EIP: [<782b8ad0>] acpi_fan_add+0x7d/0xfd SS:ESP 0068:b782cecc ---[ end trace 778e504de7e3b1e3 ]--- Kernel panic - not syncing: Attempted to kill init! Signed-off-by: NIngo Molnar <mingo@elte.hu> Acked-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 3月, 2008 12 次提交
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由 Michael Ellerman 提交于
There is a bug in the powerpc DABR (data access breakpoint) handling, which can result in us missing breakpoints if several threads are trying to break on the same address. The circumstances are that do_page_fault() calls do_dabr(), this clears the DABR (sets it to 0) and sets up the signal which will report to userspace that the DABR was hit. The do_signal() code will restore the DABR value on the way out to userspace. If we reschedule before calling do_signal(), __switch_to() will check the cached DABR value and compare it to the new thread's value, if they match we don't set the DABR in hardware. So if two threads have the same DABR value, and we schedule from one to the other after taking the interrupt for the first thread hitting the DABR, the second thread will run without the DABR set in hardware. The cleanest fix is to move the cache update into set_dabr(), that way we can't forget to do it. Reported-by: NJan Kratochvil <jan.kratochvil@redhat.com> Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Linus Torvalds 提交于
This reverts commit 3811dbf6. The masking was not at all useless, and it was sensible. We handle GFP_ZERO in the caller, and passing it down to any page allocator logic is buggy and wrong. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: lguest: comment documentation update. lguest: Don't need comment terminator before disk section. lguest: lguest.txt documentation fix lguest: Add puppies which where previously missing. virtio_pci: unregister virtio device at device remove
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由 Rusty Russell 提交于
Took some cycles to re-read the Lguest Journey end-to-end, fix some rot and tighten some phrases. Only comments change. No new jokes, but a couple of recycled old jokes. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Paul Bolle 提交于
Mention the config options for the Virtio drivers and move the Virtualization menu to the toplevel. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Tim Ansell 提交于
lguest doesn't have features, it has puppies! Signed-off-by: NTimothy R Ansell <mithro@mithis.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Anthony Liguori 提交于
Make sure to call unregister_virtio_device() when a virtio device is removed. Otherwise, virtio_pci.ko cannot be rmmod'd. This was spotted by Marcelo Tosatti. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] update pasemi_defconfig
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由 Ingo Molnar 提交于
Linus noticed a second bug and an uncleanliness: - we'd return on any instruction fetch fault - we'd use both the value of 16 and the PF_INSTR symbol which are the same and make no sense the cleanup nicely unifies this piece of logic. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: xen: fix UP setup of shared_info xen: fix RMW when unmasking events x86, documentation: nmi_watchdog=2 works on x86_64 x86: stricter check in follow_huge_addr() rdc321x: GPIO routines bugfixes x86: ptrace.c: fix defined-but-unused warnings x86: fix prefetch workaround
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git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6由 Linus Torvalds 提交于
* 'avr32-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: Fix bug in early resource allocation code avr32: Build fix for CONFIG_BUG=n avr32: Work around byteswap bug in gcc < 4.2
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- 27 3月, 2008 23 次提交
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由 Jeremy Fitzhardinge 提交于
We need to set up the shared_info pointer once we've mapped the real shared_info into its fixmap slot. That needs to happen once the general pagetable setup has been done. Previously, the UP shared_info was set up one in xen_start_kernel, but that was left pointing to the dummy shared info. Unfortunately there's no really good place to do a later setup of the shared_info in UP, so just do it once the pagetable setup has been done. [ Stable: needed in 2.6.24.x ] Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable Kernel <stable@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jeremy Fitzhardinge 提交于
xen_irq_enable_direct and xen_sysexit were using "andw $0x00ff, XEN_vcpu_info_pending(vcpu)" to unmask events and test for pending ones in one instuction. Unfortunately, the pending flag must be modified with a locked operation since it can be set by another CPU, and the unlocked form of this operation was causing the pending flag to get lost, allowing the processor to return to usermode with pending events and ultimately deadlock. The simple fix would be to make it a locked operation, but that's rather costly and unnecessary. The fix here is to split the mask-clearing and pending-testing into two instructions; the interrupt window between them is of no concern because either way pending or new events will be processed. This should fix lingering bugs in using direct vcpu structure access too. [ Stable: needed in 2.6.24.x ] Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stable <stable@kernel.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Marcin Slusarz 提交于
Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Christoph Lameter 提交于
The first page of the compound page is determined in follow_huge_addr() but then PageCompound() only checks if the page is part of a compound page. PageHead() allows checking if this is indeed the first page of the compound. Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Florian Fainelli 提交于
This patch fixes the use of GPIO routines which are in the PCI configuration space of the RDC321x, therefore reading/writing to this space without spinlock protection can be problematic. We also now request and free GPIOs and support the MGB100 board, previous code was very AR525W-centric. Signed-off-by: NVolker Weiss <volker@tintuc.de> Signed-off-by: NFlorian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Andrew Morton 提交于
arch/x86/kernel/ptrace.c:548: warning: 'ptrace_bts_get_size' defined but not used arch/x86/kernel/ptrace.c:558: warning: 'ptrace_bts_read_record' defined but not used arch/x86/kernel/ptrace.c:607: warning: 'ptrace_bts_clear' defined but not used arch/x86/kernel/ptrace.c:617: warning: 'ptrace_bts_drain' defined but not used arch/x86/kernel/ptrace.c:720: warning: 'ptrace_bts_config' defined but not used arch/x86/kernel/ptrace.c:788: warning: 'ptrace_bts_status' defined but not used Cc: Roland McGrath <roland@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ingo Molnar 提交于
some early Athlon XP's and Opterons generate bogus faults on prefetch instructions. The workaround for this regressed over .24 - reinstate it. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: drivers/acpi: elide a non-zero test on a result that is never 0 pnpacpi: reduce printk severity for "pnpacpi: exceeded the max number of ..." cpuidle: fix 100% C0 statistics regression cpuidle: fix cpuidle time and usage overflow ACPI: fix mis-merge -- invoke acpi_unlazy_tlb() only on C3 entry ACPI: fix a regression of ACPI device driver autoloading ACPI: SBS: remove typo from sbchc.c
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由 Benjamin Herrenschmidt 提交于
The futex init function is called init(). This is a pain in the neck when debugging when you code dies in ... init :-) This renames it to futex_init(). Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Haavard Skinnemoen 提交于
add_reserved_region() tries to keep the resource list sorted, so when looking for a place to insert the new resource, it may break out before the last entry. When this happens, the list is broken in two because the sibling field of the new entry doesn't point to the next resource. Fix it by updating the new resource's sibling field appropriately. Signed-off-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
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由 Julia Lawall 提交于
The function thermal_cooling_device_register always returns either a valid pointer or a value made with ERR_PTR, so a test for non-zero on the result will always succeed. The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) //<smpl> @a@ expression E, E1; statement S,S1; position p; @@ E = thermal_cooling_device_register(...) ... when != E = E1 if@p (E) S else S1 @n@ position a.p; expression E,E1; statement S,S1; @@ E = NULL ... when != E = E1 if@p (E) S else S1 @depends on !n@ expression E; statement S,S1; position a.p; @@ * if@p (E) S else S1 //</smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (43 commits) [IPSEC]: Fix BEET output [ICMP]: Dst entry leak in icmp_send host re-lookup code (v2). [AX25]: Remove obsolete references to BKL from TODO file. [NET]: Fix multicast device ioctl checks [IRDA]: Store irnet_socket termios properly. [UML]: uml-net: don't set IFF_ALLMULTI in set_multicast_list [VLAN]: Don't copy ALLMULTI/PROMISC flags from underlying device netxen, phy/marvell, skge: minor checkpatch fixes S2io: Handle TX completions on the same CPU as the sender for MIS-X interrupts b44: Truncate PHY address skge napi->poll() locking bug rndis_host: fix oops when query for OID_GEN_PHYSICAL_MEDIUM fails cxgb3: Fix lockdep problems with sge.reg_lock ehea: Fix IPv6 support dm9000: Support promisc and all-multi modes dm9601: configure MAC to drop invalid (crc/length) packets dm9601: add Hirose USB-100 device ID Marvell PHY m88e1111 driver fix netxen: fix rx dropped stats netxen: remove low level tx lock ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Define TASK_SIZE_OF() [SPARC64]: flush_ptrace_access() needs preemption disable. [SPARC64]: Update defconfig. [SPARC64]: Fix allnoconfig build, ptrace.c missing CONFIG_COMPAT checks. [SPARC64]: Fix __get_cpu_var in preemption-enabled area. [SPARC64]: Fix sparse warnings in arch/sparc64/kernel/signal.c [SPARC64]: Fix most sparse warnings in arch/sparc64/kernel/sys_sparc.c [SPARC64]: Fix sparse warnings in arch/sparc64/kernel/time.c [SPARC64]: Fix sparse warnings in arch/sparc64/kernel/ptrace.c [SPARC64]: Fix sparse warnings in arch/sparc64/kernel/irq.c [SPARC64]: Fix sparse warnings in arch/sparc64/kernel/iommu.c [SPARC64]: Fix sparse errors in arch/sparc64/kernel/traps.c [SPARC64]: Fix sparse warnings in arch/sparc64/kernel/{cpu,setup}.c [SPARC64]: Adjust {TLBTEMP,TSBMAP}_BASE. [SPARC64]: Make save_stack_trace() more efficient.
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由 David S. Miller 提交于
This make "cat /proc/${PID}/pagemap" more efficient for 32-bit tasks. Based upon a report by Mariusz Kozlowski. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
The IPv6 BEET output function is incorrectly including the inner header in the payload to be protected. This causes a crash as the packet doesn't actually have that many bytes for a second header. The IPv4 BEET output on the other hand is broken when it comes to handling an inner IPv6 header since it always assumes an inner IPv4 header. This patch fixes both by making sure that neither BEET output function touches the inner header at all. All access is now done through the protocol-independent cb structure. Two new attributes are added to make this work, the IP header length and the IPv4 option length. They're filled in by the inner mode's output function. Thanks to Joakim Koskela for finding this problem. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86: fix performance drop for glx x86: fix trim mtrr not to setup_memory two times x86: GEODE: add missing module.h include x86, cpufreq: fix Speedfreq-SMI call that clobbers ECX x86: fix memoryless node oops during boot x86: add dmi quirk for io_delay x86: convert mtrr/generic.c to kernel-doc x86: Documentation/i386/IO-APIC.txt: fix description
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由 Nishanth Aravamudan 提交于
Running the counters testcase from libhugetlbfs results in on 2.6.25-rc5 and 2.6.25-rc5-mm1: BUG: soft lockup - CPU#3 stuck for 61s! [counters:10531] NIP: c0000000000d1f3c LR: c0000000000d1f2c CTR: c0000000001b5088 REGS: c000005db12cb360 TRAP: 0901 Not tainted (2.6.25-rc5-autokern1) MSR: 8000000000009032 <EE,ME,IR,DR> CR: 48008448 XER: 20000000 TASK = c000005dbf3d6000[10531] 'counters' THREAD: c000005db12c8000 CPU: 3 GPR00: 0000000000000004 c000005db12cb5e0 c000000000879228 0000000000000004 GPR04: 0000000000000010 0000000000000000 0000000000200200 0000000000100100 GPR08: c0000000008aba10 000000000000ffff 0000000000000004 0000000000000000 GPR12: 0000000028000442 c000000000770080 NIP [c0000000000d1f3c] .return_unused_surplus_pages+0x84/0x18c LR [c0000000000d1f2c] .return_unused_surplus_pages+0x74/0x18c Call Trace: [c000005db12cb5e0] [c000005db12cb670] 0xc000005db12cb670 (unreliable) [c000005db12cb670] [c0000000000d24c4] .hugetlb_acct_memory+0x2e0/0x354 [c000005db12cb740] [c0000000001b5048] .truncate_hugepages+0x1d4/0x214 [c000005db12cb890] [c0000000001b50a4] .hugetlbfs_delete_inode+0x1c/0x3c [c000005db12cb920] [c000000000103fd8] .generic_delete_inode+0xf8/0x1c0 [c000005db12cb9b0] [c0000000001b5100] .hugetlbfs_drop_inode+0x3c/0x24c [c000005db12cba50] [c00000000010287c] .iput+0xdc/0xf8 [c000005db12cbad0] [c0000000000fee54] .dentry_iput+0x12c/0x194 [c000005db12cbb60] [c0000000000ff050] .d_kill+0x6c/0xa4 [c000005db12cbbf0] [c0000000000ffb74] .dput+0x18c/0x1b0 [c000005db12cbc70] [c0000000000e9e98] .__fput+0x1a4/0x1e8 [c000005db12cbd10] [c0000000000e61ec] .filp_close+0xb8/0xe0 [c000005db12cbda0] [c0000000000e62d0] .sys_close+0xbc/0x134 [c000005db12cbe30] [c00000000000872c] syscall_exit+0x0/0x40 Instruction dump: ebbe8038 38800010 e8bf0002 3bbd0008 7fa3eb78 38a50001 7ca507b4 4818df25 60000000 38800010 38a00000 7c601b78 <7fa3eb78> 2f800010 409d0008 38000010 This was tracked down to a potential livelock in return_unused_surplus_hugepages(). In the case where we have surplus pages on some node, but no free pages on the same node, we may never break out of the loop. To avoid this livelock, terminate the search if we iterate a number of times equal to the number of online nodes without freeing a page. Thanks to Andy Whitcroft and Adam Litke for helping with debugging and the patch. Signed-off-by: NNishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nishanth Aravamudan 提交于
Currently we show the surplus hugetlb pool state in /proc/meminfo, but not in the per-node meminfo files, even though we track the information on a per-node basis. Printing it there can help track down dynamic pool bugs including the one in the follow-on patch. Signed-off-by: NNishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Suresh Siddha 提交于
fix the 3D performance drop reported at: http://bugzilla.kernel.org/show_bug.cgi?id=10328 fb drivers are using ioremap()/ioremap_nocache(), followed by mtrr_add with WC attribute. Recent changes in page attribute code made both ioremap()/ioremap_nocache() mappings as UC (instead of previous UC-). This breaks the graphics performance, as the effective memory type is UC instead of expected WC. The correct way to fix this is to add ioremap_wc() (which uses UC- in the absence of PAT kernel support and WC with PAT) and change all the fb drivers to use this new ioremap_wc() API. We can take this correct and longer route for post 2.6.25. For now, revert back to the UC- behavior for ioremap/ioremap_nocache. Signed-off-by: NSuresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Yinghai Lu 提交于
we could call find_max_pfn() directly instead of setup_memory() to get max_pfn needed for mtrr trimming. otherwise setup_memory() is called two times... that is duplicated... [ mingo@elte.hu: both Thomas and me simulated a double call to setup_bootmem_allocator() and can confirm that it is a real bug which can hang in certain configs. It's not been reported yet but that is probably due to the relatively scarce nature of MTRR-trimming systems. ] Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Andres Salomon 提交于
On Wed, 26 Mar 2008 11:56:22 -0600 Jordan Crouse <jordan.crouse@amd.com> wrote: > On 26/03/08 14:31 +0100, Stefan Pfetzing wrote: > > Hello Jordan, > > > > I just tried to build your geodwdt driver for the geode watchdog. Therefore > > I pulled your repository from http://git.infradead.org/geode.git (or more, > > the git url). > > > > I tried to build the geodewdt driver as a module - which didn't work, and > > it failed with the same problem as earlier mentioned on lkmk [1]. I also > > checked the fix [2], but that seems to be already in your (or linus) tree - > > and so I'm unsure what the problem is. > > > > [1] http://kerneltrap.org/mailarchive/linux-kernel/2008/2/17/884074 > > [2] http://kerneltrap.org/mailarchive/linux-kernel/2008/2/17/884174 > > > > Building directly into the kernel seems to work. > > > > Maybe you have some idea? > > Hmm - that is strange. Exporting the symbols should work. I recommend > starting over with a clean tree. > > CCing Andres - any thoughts? > > Jordan > Er, yeah. The patch below should fix it. This should probably go into 2.6.25. Oops, EXPORT_SYMBOL_GPL wasn't being declared due to this header being missing. Signed-off-by: NAndres Salomon <dilinger@debian.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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