- 17 Dec, 2012 4 commits
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Paul Walmsley authored
commit 39141ddf upstream. After commit 846a1368 ("ARM: vfp: fix saving d16-d31 vfp registers on v6+ kernels"), the OMAP 2430SDP board started crashing during boot with omap2plus_defconfig: [ 3.875122] mmcblk0: mmc0:e624 SD04G 3.69 GiB [ 3.915954] mmcblk0: p1 [ 4.086639] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM [ 4.093719] Modules linked in: [ 4.096954] CPU: 0 Not tainted (3.6.0-02232-g759e00b8 #570) [ 4.103149] PC is at vfp_reload_hw+0x1c/0x44 [ 4.107666] LR is at __und_usr_fault_32+0x0/0x8 It turns out that the context save/restore fix unmasked a latent bug in commit 5aaf2544 ("ARM: 6203/1: Make VFPv3 usable on ARMv6"). When CONFIG_VFPv3 is set, but the kernel is booted on a pre-VFPv3 core, the code attempts to save and restore the d16-d31 VFP registers. These are only present on non-D16 VFPv3+, so this results in an undefined instruction exception. The code didn't crash before commit 846a1368 because the save and restore code was only touching d0-d15, present on all VFP. Fix by implementing a request from Russell King to add a new HWCAP flag that affirmatively indicates the presence of the d16-d31 registers: http://marc.info/?l=linux-arm-kernel&m=135013547905283&w=2 and some feedback from Måns to clarify the name of the HWCAP flag. Signed-off-by:
Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dave Martin <dave.martin@linaro.org> Cc: Måns Rullgård <mans.rullgard@linaro.org> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Guennadi Liakhovetski authored
commit 91ab252a upstream. On some systems, e.g., kzm9g, MMCIF interfaces can produce spurious interrupts without any active request. To prevent the Oops, that results in such cases, don't dereference the mmc request pointer until we make sure, that we are indeed processing such a request. Reported-by:
Tetsuyuki Kobayashi <koba@kmckk.co.jp> Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by:
Tetsuyuki Kobayashi <koba@kmckk.co.jp> Signed-off-by:
Chris Ball <cjb@laptop.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chris Ball authored
commit 6984f3c3 upstream. This reverts commit 8464dd52, which was a misapplied debugging version of the patch, not the final patch itself. Signed-off-by:
Chris Ball <cjb@laptop.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mel Gorman authored
commit 18a2f371 upstream. This fixes a regression in 3.7-rc, which has since gone into stable. Commit 00442ad0 ("mempolicy: fix a memory corruption by refcount imbalance in alloc_pages_vma()") changed get_vma_policy() to raise the refcount on a shmem shared mempolicy; whereas shmem_alloc_page() went on expecting alloc_page_vma() to drop the refcount it had acquired. This deserves a rework: but for now fix the leak in shmem_alloc_page(). Hugh: shmem_swapin() did not need a fix, but surely it's clearer to use the same refcounting there as in shmem_alloc_page(), delete its onstack mempolicy, and the strange mpol_cond_copy() and __mpol_cond_copy() - those were invented to let swapin_readahead() make an unknown number of calls to alloc_pages_vma() with one mempolicy; but since 00442ad0, alloc_pages_vma() has kept refcount in balance, so now no problem. Reported-and-tested-by:
Tommi Rantala <tt.rantala@gmail.com> Signed-off-by:
Mel Gorman <mgorman@suse.de> Signed-off-by:
Hugh Dickins <hughd@google.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 10 Dec, 2012 20 commits
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Greg Kroah-Hartman authored
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Michal Marek authored
commit fe04ddf7 upstream. There were reports of users destroying their Fedora installs by a kernel tarball that replaces the /lib -> /usr/lib symlink. Let's remove the toplevel directories from the tarball to prevent this from happening. Reported-by:
Andi Kleen <andi@firstfloor.org> Suggested-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Michal Marek <mmarek@suse.cz> [bwh: Fold in commit 3ce9e53e to avoid conflicts] Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Peng Tao authored
commit fe6e1e8d upstream. If applications use flock to protect its write range, generic NFS will not do read-modify-write cycle at page cache level. Therefore LD should know how to handle non-sector aligned writes. Otherwise there will be data corruption. Signed-off-by:
Peng Tao <tao.peng@emc.com> Signed-off-by:
Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chris Wilson authored
commit c31407a3 upstream. Reported-and-tested-by:
Francois Tigeot <ftigeot@wolfpond.org> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55375Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Calvin Walton authored
commit a51d4ed0 upstream. This board is incorrectly detected as having an LVDS connector, resulting in the VGA output (the only available output on the board) showing the console only in the top-left 1024x768 pixels, and an extra LVDS connector appearing in X. It's a desktop Mini-ITX board using an Atom D525 CPU with an NM10 chipset. I've had this board for about a year, but this is the first time I noticed the issue because I've been running it headless for most of its life. Signed-off-by:
Calvin Walton <calvin.walton@kepstin.ca> Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Cox authored
commit 879dca01 upstream. We handle NOTIFY_THROTTLING so don't then fall through to unsupported event. Signed-off-by:
Alan Cox <alan@linux.intel.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ariel Elior authored
commit 4a25417c upstream. fix bug where a register which was only meant to be read in 578xx/57712 devices causes a bogus error message to be logged when read from other devices. Signed-off-by:
Ariel Elior <ariele@broadcom.com> Signed-off-by:
Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
CAI Qian <caiqian@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mike Galbraith authored
commit fd8ef117 upstream. This reverts commit 800d4d30. Between commits 8323f26c ("sched: Fix race in task_group()") and 800d4d30 ("sched, autogroup: Stop going ahead if autogroup is disabled"), autogroup is a wreck. With both applied, all you have to do to crash a box is disable autogroup during boot up, then reboot.. boom, NULL pointer dereference due to commit 800d4d30 not allowing autogroup to move things, and commit 8323f26c making that the only way to switch runqueues: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff81063ac0>] effective_load.isra.43+0x50/0x90 Pid: 7047, comm: systemd-user-se Not tainted 3.6.8-smp #7 MEDIONPC MS-7502/MS-7502 RIP: effective_load.isra.43+0x50/0x90 Process systemd-user-se (pid: 7047, threadinfo ffff880221dde000, task ffff88022618b3a0) Call Trace: select_task_rq_fair+0x255/0x780 try_to_wake_up+0x156/0x2c0 wake_up_state+0xb/0x10 signal_wake_up+0x28/0x40 complete_signal+0x1d6/0x250 __send_signal+0x170/0x310 send_signal+0x40/0x80 do_send_sig_info+0x47/0x90 group_send_sig_info+0x4a/0x70 kill_pid_info+0x3a/0x60 sys_kill+0x97/0x1a0 ? vfs_read+0x120/0x160 ? sys_read+0x45/0x90 system_call_fastpath+0x16/0x1b Code: 49 0f af 41 50 31 d2 49 f7 f0 48 83 f8 01 48 0f 46 c6 48 2b 07 48 8b bf 40 01 00 00 48 85 ff 74 3a 45 31 c0 48 8b 8f 50 01 00 00 <48> 8b 11 4c 8b 89 80 00 00 00 49 89 d2 48 01 d0 45 8b 59 58 4c RIP [<ffffffff81063ac0>] effective_load.isra.43+0x50/0x90 RSP <ffff880221ddfbd8> CR2: 0000000000000000 Signed-off-by:
Mike Galbraith <efault@gmx.de> Acked-by:
Ingo Molnar <mingo@kernel.org> Cc: Yong Zhang <yong.zhang0@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jean Delvare authored
commit 7e06b7a3 upstream. * Right-shift the values in GET_FBD_FAT_IDX and GET_FBD_NF_IDX, so that the callers get the result they expect. * Fix definition of FERR_FAT_FBD_ERR_MASK. * Call GET_FBD_NF_IDX, not GET_FBD_FAT_IDX, when operating on register FERR_NF_FBD. We were lucky they have the same definition. This fixes kernel bug #44131: https://bugzilla.kernel.org/show_bug.cgi?id=44131Signed-off-by:
Jean Delvare <jdelvare@suse.de> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Doug Thompson <dougthompson@xmission.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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NeilBrown authored
commit e7c0c3fa upstream. When a replacement operation completes there is a small window when the original device is marked 'faulty' and the replacement still looks like a replacement. The faulty should be removed and the replacement moved in place very quickly, bit it isn't instant. So the code write out to the array must handle the possibility that the only working device for some slot in the replacement - but it doesn't. If the primary device is faulty it just gives up. This can lead to corruption. So make the code more robust: if either the primary or the replacement is present and working, write to them. Only when neither are present do we give up. This bug has been present since replacement was introduced in 3.3, so it is suitable for any -stable kernel since then. Reported-by:
"George Spelvin" <linux@horizon.com> Signed-off-by:
NeilBrown <neilb@suse.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mike Galbraith authored
commit 412d32e6 upstream. A rescue thread exiting TASK_INTERRUPTIBLE can lead to a task scheduling off, never to be seen again. In the case where this occurred, an exiting thread hit reiserfs homebrew conditional resched while holding a mutex, bringing the box to its knees. PID: 18105 TASK: ffff8807fd412180 CPU: 5 COMMAND: "kdmflush" #0 [ffff8808157e7670] schedule at ffffffff8143f489 #1 [ffff8808157e77b8] reiserfs_get_block at ffffffffa038ab2d [reiserfs] #2 [ffff8808157e79a8] __block_write_begin at ffffffff8117fb14 #3 [ffff8808157e7a98] reiserfs_write_begin at ffffffffa0388695 [reiserfs] #4 [ffff8808157e7ad8] generic_perform_write at ffffffff810ee9e2 #5 [ffff8808157e7b58] generic_file_buffered_write at ffffffff810eeb41 #6 [ffff8808157e7ba8] __generic_file_aio_write at ffffffff810f1a3a #7 [ffff8808157e7c58] generic_file_aio_write at ffffffff810f1c88 #8 [ffff8808157e7cc8] do_sync_write at ffffffff8114f850 #9 [ffff8808157e7dd8] do_acct_process at ffffffff810a268f [exception RIP: kernel_thread_helper] RIP: ffffffff8144a5c0 RSP: ffff8808157e7f58 RFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8107af60 RDI: ffff8803ee491d18 RBP: 0000000000000000 R8: 0000000000000000 R9: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 Signed-off-by:
Mike Galbraith <mgalbraith@suse.de> Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vincent Palatin authored
commit 644c1541 upstream. When a cpu enters S3 state, the FPU state is lost. After resuming for S3, if we try to lazy restore the FPU for a process running on the same CPU, this will result in a corrupted FPU context. Ensure that "fpu_owner_task" is properly invalided when (re-)initializing a CPU, so nobody will try to lazy restore a state which doesn't exist in the hardware. Tested with a 64-bit kernel on a 4-core Ivybridge CPU with eagerfpu=off, by doing thousands of suspend/resume cycles with 4 processes doing FPU operations running. Without the patch, a process is killed after a few hundreds cycles by a SIGFPE. Signed-off-by:
Vincent Palatin <vpalatin@chromium.org> Cc: Duncan Laurie <dlaurie@chromium.org> Cc: Olof Johansson <olofj@chromium.org> Link: http://lkml.kernel.org/r/1354306532-1014-1-git-send-email-vpalatin@chromium.orgSigned-off-by:
H. Peter Anvin <hpa@linux.intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jason Gunthorpe authored
commit 1dc831bf upstream. - The code relies on rc_pci_fixup being called, which only happens when CONFIG_PCI_QUIRKS is enabled, so add that to Kconfig. Omitting this causes a booting failure with a non-obvious cause. - Update rc_pci_fixup to set the class properly, copying the more modern style from other places - Correct the rc_pci_fixup comment Signed-off-by:
Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by:
Jason Cooper <jason@lakedaemon.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Naoya Horiguchi authored
commit 783657a7 upstream. When we try to soft-offline a thp tail page, put_page() is called on the tail page unthinkingly and VM_BUG_ON is triggered in put_compound_page(). This patch splits thp before going into the main body of soft-offlining. Signed-off-by:
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Andi Kleen <andi.kleen@intel.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jianguo Wu authored
commit ae64ffca upstream. I enable CONFIG_DEBUG_VIRTUAL and CONFIG_SPARSEMEM_VMEMMAP, when doing memory hotremove, there is a kernel BUG at arch/x86/mm/physaddr.c:20. It is caused by free_section_usemap()->virt_to_page(), virt_to_page() is only used for kernel direct mapping address, but sparse-vmemmap uses vmemmap address, so it is going wrong here. ------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:20! invalid opcode: 0000 [#1] SMP Modules linked in: acpihp_drv acpihp_slot edd cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf fuse vfat fat loop dm_mod coretemp kvm crc32c_intel ipv6 ixgbe igb iTCO_wdt i7core_edac edac_core pcspkr iTCO_vendor_support ioatdma microcode joydev sr_mod i2c_i801 dca lpc_ich mfd_core mdio tpm_tis i2c_core hid_generic tpm cdrom sg tpm_bios rtc_cmos button ext3 jbd mbcache usbhid hid uhci_hcd ehci_hcd usbcore usb_common sd_mod crc_t10dif processor thermal_sys hwmon scsi_dh_alua scsi_dh_hp_sw scsi_dh_rdac scsi_dh_emc scsi_dh ata_generic ata_piix libata megaraid_sas scsi_mod CPU 39 Pid: 6454, comm: sh Not tainted 3.7.0-rc1-acpihp-final+ #45 QCI QSSC-S4R/QSSC-S4R RIP: 0010:[<ffffffff8103c908>] [<ffffffff8103c908>] __phys_addr+0x88/0x90 RSP: 0018:ffff8804440d7c08 EFLAGS: 00010006 RAX: 0000000000000006 RBX: ffffea0012000000 RCX: 000000000000002c ... Signed-off-by:
Jianguo Wu <wujianguo@huawei.com> Signed-off-by:
Jiang Liu <jiang.liu@huawei.com> Reviewd-by:
Wen Congyang <wency@cn.fujitsu.com> Acked-by:
Johannes Weiner <hannes@cmpxchg.org> Reviewed-by:
Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Reviewed-by:
Michal Hocko <mhocko@suse.cz> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Deucher authored
commit 804cc4a0 upstream. The save struct is not initialized previously so explicitly mark the crtcs as not used when they are not in use. Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Deucher authored
commit 62444b74 upstream. - Stop the displays from accessing the FB - Block CPU access - Turn off MC client access This should fix issues some users have seen, especially with UEFI, when changing the MC FB location that result in hangs or display corruption. v2: fix crtc enabled check noticed by Luca Tettamanti Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Deucher authored
commit 4a15903d upstream. This might be called before we've allocated the radeon_crtcs Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Russell King - ARM Linux authored
commit d356cf5a upstream. PMU interrupts start at IRQ_DOVE_PMU_START, not IRQ_DOVE_PMU_START + 1. Fix the condition. (It may have been less likely to occur had the code been written "if (irq >= IRQ_DOVE_PMU_START" which imho is the easier to understand notation, and matches the normal way of thinking about these things.) Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
Jason Cooper <jason@lakedaemon.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Russell King - ARM Linux authored
commit 5d3df935 upstream. Fix the acknowledgement of PMU interrupts on Dove: some Dove hardware has not been sensibly designed so that interrupts can be handled in a race free manner. The PMU is one such instance. The pending (aka 'cause') register is a bunch of RW bits, meaning that these bits can be both cleared and set by software (confirmed on the Armada-510 on the cubox.) Hardware sets the appropriate bit when an interrupt is asserted, and software is required to clear the bits which are to be processed. If we write ~(1 << bit), then we end up asserting every other interrupt except the one we're processing. So, we need to do a read-modify-write cycle to clear the asserted bit. However, any interrupts which occur in the middle of this cycle will also be written back as zero, which will also clear the new interrupts. The upshot of this is: there is _no_ way to safely clear down interrupts in this register (and other similarly behaving interrupt pending registers on this device.) The patch below at least stops us creating new interrupts. Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
Jason Cooper <jason@lakedaemon.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 06 Dec, 2012 2 commits
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Greg Kroah-Hartman authored
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H. Peter Anvin authored
commit cb57a2b4 upstream. Modules, in particular oprofile (and possibly other similar tools) need kernel_stack_pointer(), so export it using EXPORT_SYMBOL_GPL(). Cc: Yang Wei <wei.yang@windriver.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Jun Zhang <jun.zhang@intel.com> Link: http://lkml.kernel.org/r/20120912135059.GZ8285@erda.amd.comSigned-off-by:
H. Peter Anvin <hpa@linux.intel.com> Cc: Robert Richter <rric@kernel.org> Cc: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Cc: Philip Müller <philm@manjaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 03 Dec, 2012 14 commits
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Greg Kroah-Hartman authored
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Johannes Berg authored
commit 8f7b8db6 upstream. The channel switch command for 6000 series devices is larger than the maximum inline command size of 320 bytes. The command is therefore refused with a warning. Fix this by allocating the command and using the NOCOPY mechanism. Reviewed-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
Johannes Berg <johannes.berg@intel.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stanislav Yakovlev authored
commit bf11315e upstream. The driver does not count space of radiotap fields when allocating skb for radiotap packet. This leads to kernel panic with the following call trace: ... [67607.676067] [<c152f90f>] error_code+0x67/0x6c [67607.676067] [<c142f831>] ? skb_put+0x91/0xa0 [67607.676067] [<f8cf5e5b>] ? ipw_handle_promiscuous_tx+0x16b/0x2d0 [ipw2200] [67607.676067] [<f8cf5e5b>] ipw_handle_promiscuous_tx+0x16b/0x2d0 [ipw2200] [67607.676067] [<f8cf899b>] ipw_net_hard_start_xmit+0x8b/0x90 [ipw2200] [67607.676067] [<f8741c5a>] libipw_xmit+0x55a/0x980 [libipw] [67607.676067] [<c143d3e8>] dev_hard_start_xmit+0x218/0x4d0 ... This bug was found by VittGam. https://bugzilla.kernel.org/show_bug.cgi?id=43255Signed-off-by:
Stanislav Yakovlev <stas.yakovlev@gmail.com> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dan Carpenter authored
commit 5b3900cd upstream. We fixed a bunch of integer overflows in timekeeping code during the 3.6 cycle. I did an audit based on that and found this potential overflow. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
John Stultz <johnstul@us.ibm.com> Link: http://lkml.kernel.org/r/20121009071823.GA19159@elgon.mountainSigned-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Ben Hutchings <ben@decadent.org.uk> [ herton: adapt for 3.5, timekeeper instead of tk pointer ] Signed-off-by:
Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
commit 9d7d6e36 upstream. read_persistent_clock uses a global variable, use a spinlock to ensure non-atomic updates to the variable don't overlap and cause time to move backwards. Signed-off-by:
Colin Cross <ccross@android.com> Signed-off-by:
R Sricharan <r.sricharan@ti.com> Signed-off-by:
Tony Lindgren <tony@atomide.com> [bwh: Backported to 3.2: adjust context] Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jaehoon Chung authored
commit 5feb54a1 upstream. We can use up to four bus-clocks; but on module remove, we didn't disable the fourth bus clock. Signed-off-by:
Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
Chris Ball <cjb@laptop.org> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Gavin Shan authored
commit feadf7c0 upstream. The EEH core is talking with the PCI device driver to determine the action (purely reset, or PCI device removal). During the period, the driver might be unloaded and in turn causes kernel crash as follows: EEH: Detected PCI bus error on PHB#4-PE#10000 EEH: This PCI device has failed 3 times in the last hour lpfc 0004:01:00.0: 0:2710 PCI channel disable preparing for reset Unable to handle kernel paging request for data at address 0x00000490 Faulting instruction address: 0xd00000000e682c90 cpu 0x1: Vector: 300 (Data Access) at [c000000fc75ffa20] pc: d00000000e682c90: .lpfc_io_error_detected+0x30/0x240 [lpfc] lr: d00000000e682c8c: .lpfc_io_error_detected+0x2c/0x240 [lpfc] sp: c000000fc75ffca0 msr: 8000000000009032 dar: 490 dsisr: 40000000 current = 0xc000000fc79b88b0 paca = 0xc00000000edb0380 softe: 0 irq_happened: 0x00 pid = 3386, comm = eehd enter ? for help [c000000fc75ffca0] c000000fc75ffd30 (unreliable) [c000000fc75ffd30] c00000000004fd3c .eeh_report_error+0x7c/0xf0 [c000000fc75ffdc0] c00000000004ee00 .eeh_pe_dev_traverse+0xa0/0x180 [c000000fc75ffe70] c00000000004ffd8 .eeh_handle_event+0x68/0x300 [c000000fc75fff00] c0000000000503a0 .eeh_event_handler+0x130/0x1a0 [c000000fc75fff90] c000000000020138 .kernel_thread+0x54/0x70 1:mon> The patch increases the reference of the corresponding driver modules while EEH core does the negotiation with PCI device driver so that the corresponding driver modules can't be unloaded during the period and we're safe to refer the callbacks. Reported-by:
Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by:
Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> [ herton: backported for 3.5, adjusted driver assignments, return 0 instead of NULL, assume dev is not NULL ] Signed-off-by:
Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Manuel Lauss authored
commit a3cea989 upstream. Since 4.4 GCC on MIPS no longer recognizes the "h" constraint, leading to this build failure: CC lib/mpi/generic_mpih-mul1.o lib/mpi/generic_mpih-mul1.c: In function 'mpihelp_mul_1': lib/mpi/generic_mpih-mul1.c:50:3: error: impossible constraint in 'asm' This patch updates MPI with the latest umul_ppm implementations for MIPS. Signed-off-by:
Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: Dmitry Kasatkin <dmitry.kasatkin@intel.com> Cc: James Morris <jmorris@namei.org> Patchwork: https://patchwork.linux-mips.org/patch/4612/Signed-off-by:
Ralf Baechle <ralf@linux-mips.org> Cc: Shuah Khan <shuah.khan@hp.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chuansheng Liu authored
commit 8ffeb9b0 upstream. In get_sample_period(), unsigned long is not enough: watchdog_thresh * 2 * (NSEC_PER_SEC / 5) case1: watchdog_thresh is 10 by default, the sample value will be: 0xEE6B2800 case2: set watchdog_thresh is 20, the sample value will be: 0x1 DCD6 5000 In case2, we need use u64 to express the sample period. Otherwise, changing the threshold thru proc often can not be successful. Signed-off-by:
liu chuansheng <chuansheng.liu@intel.com> Acked-by:
Don Zickus <dzickus@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Shuah Khan <shuah.khan@hp.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Johan Hovold authored
commit 5260e458 upstream. Make sure generic close is called at close. The driver relies on the generic write implementation but did not call generic close. Note that the call to kill the read urb is not redundant, as mct_u232 uses an interrupt urb from the second port as the read urb and that generic close therefore fails to kill it. Compile-only tested. Signed-off-by:
Johan Hovold <jhovold@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> [bwh: Backported to 3.2: adjust context] Signed-off-by:
Ben Hutchings <ben@decadent.org.uk>
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Thierry Escande authored
commit 16a78e9f upstream. list_add was called with swapped parameters Signed-off-by:
Thierry Escande <thierry.escande@linux.intel.com> Signed-off-by:
Samuel Ortiz <sameo@linux.intel.com> Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Waldemar Rymarkiewicz authored
commit 70418e6e upstream. cmd is allocated in pn533_dep_link_up and passed as an arg to pn533_send_cmd_frame_async together with a complete cb. arg is passed to the cb and must be kfreed there. Signed-off-by:
Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by:
Samuel Ortiz <sameo@linux.intel.com> Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Szymon Janc authored
commit 770f750b upstream. cmd was freed in pn533_dep_link_up regardless of pn533_send_cmd_frame_async return code. Cmd is passed as argument to pn533_in_dep_link_up_complete callback and should be freed there. Signed-off-by:
Szymon Janc <szymon.janc@tieto.com> Signed-off-by:
Samuel Ortiz <sameo@linux.intel.com> Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mauro Carvalho Chehab authored
commit 25ec43d3 upstream. The previous website doesn't exist anymore. Update it to one site that actually exists. Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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