1. 28 Nov, 2012 4 commits
  2. 25 Nov, 2012 4 commits
  3. 24 Nov, 2012 2 commits
  4. 23 Nov, 2012 30 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 2654ad44
      Linus Torvalds authored
      Pull x86 arch fixes from Peter Anvin:
       "Here is a collection of fixes for 3.7-rc7.  This is a superset of
        tglx' earlier pull request."
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86-64: Fix ordering of CFI directives and recent ASM_CLAC additions
        x86, microcode, AMD: Add support for family 16h processors
        x86-32: Export kernel_stack_pointer() for modules
        x86-32: Fix invalid stack address while in softirq
        x86, efi: Fix processor-specific memcpy() build error
        x86: remove dummy long from EFI stub
        x86, mm: Correct vmflag test for checking VM_HUGETLB
        x86, amd: Disable way access filter on Piledriver CPUs
        x86/mce: Do not change worker's running cpu in cmci_rediscover().
        x86/ce4100: Fix PCI configuration register access for devices without interrupts
        x86/ce4100: Fix reboot by forcing the reboot method to be KBD
        x86/ce4100: Fix pm_poweroff
        MAINTAINERS: Update email address for Robert Richter
        x86, microcode_amd: Change email addresses, MAINTAINERS entry
        MAINTAINERS: Change Boris' email address
        EDAC: Change Boris' email address
        x86, AMD: Change Boris' email address
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20121123' of git://git.infradead.org/mtd-2.6 · 35f95d22
      Linus Torvalds authored
      Pull MTD fixes from David Woodhouse:
       "The most important part of this is that it fixes a regression in
        Samsung NAND chip detection, introduced by some rework which went into
        3.7.  The initial fix wasn't quite complete, so it's in two parts.  In
        fact the first part is committed twice (Artem committed his own copy
        of the same patch) and I've merged Artem's tree into mine which
        already had that fix.
        I'd have recommitted that to make it somewhat cleaner, but figured by
        this point in the release cycle it was better to merge *exactly* the
        commits which have been in linux-next.
        If I'd recommitted, I'd also omit the sparse warning fix.  But it's
        there, and it's harmless — just marking one function as 'static' in
        onenand code.
        This also includes a couple more fixes for stable: an AB-BA deadlock
        in JFFS2, and an invalid range check in slram."
      * tag 'for-linus-20121123' of git://git.infradead.org/mtd-2.6:
        mtd: nand: fix Samsung SLC detection regression
        mtd: nand: fix Samsung SLC NAND identification regression
        jffs2: Fix lock acquisition order bug in jffs2_write_begin
        mtd: onenand: Make flexonenand_set_boundary static
        mtd: slram: invalid checking of absolute end address
        mtd: ofpart: Fix incorrect NULL check in parse_ofoldpart_partitions()
        mtd: nand: fix Samsung SLC NAND identification regression
    • Linus Torvalds's avatar
      Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6 · 5e351cdc
      Linus Torvalds authored
      Pull device tree regression fix from Grant Likely:
       "Simple build regression fix for DT device drivers on Sparc.  An
        earlier change had masked out the of_iomap() helper on SPARC."
      * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
        of/address: sparc: Declare of_iomap as an extern function for sparc again
    • Linus Torvalds's avatar
      Merge tag 'pm-for-3.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · a0543d64
      Linus Torvalds authored
      Pull power management update from Rafael Wysocki:
       "Fix for an incorrect error condition check in device PM QoS code that
        may lead to an Oops from Guennadi Liakhovetski."
      * tag 'pm-for-3.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM / QoS: fix wrong error-checking condition
    • Linus Torvalds's avatar
      Merge tag 'md-3.7-fixes' of git://neil.brown.name/md · 1d838d70
      Linus Torvalds authored
      Pull md fixes from NeilBrown:
       "Several bug fixes for md in 3.7:
         - raid5 discard has problems
         - raid10 replacement devices have problems
         - bad block lock seqlock usage has problems
         - dm-raid doesn't free everything"
      * tag 'md-3.7-fixes' of git://neil.brown.name/md:
        md/raid10: decrement correct pending counter when writing to replacement.
        md/raid10: close race that lose writes lost when replacement completes.
        md/raid5: Make sure we clear R5_Discard when discard is finished.
        md/raid5: move resolving of reconstruct_state earlier in stripe_handle.
        md/raid5: round discard alignment up to power of 2.
        md: make sure everything is freed when dm-raid stops an array.
        md: Avoid write invalid address if read_seqretry returned true.
        md: Reassigned the parameters if read_seqretry returned true in func md_is_badblock.
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · a8946afe
      Linus Torvalds authored
      Pull block layer fixes from Jens Axboe:
       "Distilled down version of bug fixes for 3.7.  The patches have been
        well tested.  If you notice that commit dates are from today, it's
        because I pulled less important bits out and shuffled them into the
        3.8 mix.  Apart from that, no changes, base still the same.
        It contains:
         - Fix for aoe, don't run request_fn while it's plugged.
         - Fix for a regression in floppy since 3.6, which causes problems if
           no floppy is found.
         - Stable fix for blk_exec(), don't touch a request after it has been
           sent to the scheduler (and the device as well).
         - Five fixes for various nasties in mtip32xx."
      * 'for-linus' of git://git.kernel.dk/linux-block:
        block: Don't access request after it might be freed
        mtip32xx: Fix padding issue
        aoe: avoid running request handler on plugged queue
        mtip32xx: fix potential NULL pointer dereference in mtip_timeout_function()
        mtip32xx: fix shift larger than type warning
        mtip32xx: Fix incorrect mask used for erase mode
        mtip32xx: Fix to make lba address correct in big-endian systems
        mtip32xx: fix potential crash on SEC_ERASE_UNIT
        dm: fix deadlock with request based dm and queue request_fn recursion
        floppy: destroy floppy workqueue before cleaning up the queue
    • Andreas Larsson's avatar
      of/address: sparc: Declare of_iomap as an extern function for sparc again · 0e622d39
      Andreas Larsson authored
      This bug-fix makes sure that of_iomap is defined extern for sparc so that the
      sparc-specific implementation of_iomap is once again used when including
      include/linux/of_address.h in a sparc context. OF_GPIO that is now available for
      sparc relies on this.
      The bug was inadvertently introduced in a850a755, "of/address: add empty static
      inlines for !CONFIG_OF", that added a static dummy inline for of_iomap when
      !CONFIG_OF_ADDRESS. However, CONFIG_OF_ADDRESS is never defined for sparc, but
      there is a sparc-specific implementation /arch/sparc/kernel/of_device_common.c.
      This fix takes the same approach as 0bce04be that solved the equivalent problem
      for of_address_to_resource.
      Signed-off-by: default avatarAndreas Larsson <andreas@gaisler.com>
      Acked-by: default avatarDavid Miller <davem@davemloft.net>
      Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
    • Linus Torvalds's avatar
      Merge tag 'omapdss-for-3.7-rc' of git://gitorious.org/linux-omap-dss2/linux · f789dcc7
      Linus Torvalds authored
      Pull omapdss fixes from Tomi Valkeinen:
       "Here are a few OMAPDSS fixes for the next -rc.  I'm sending these
        directly to you, and quite late, as the fbdev tree maintainer
        (Florian) has been busy with his work and hasn't had time to manage
        the fb patches."
      * tag 'omapdss-for-3.7-rc' of git://gitorious.org/linux-omap-dss2/linux:
        OMAPDSS: do not fail if dpll4_m4_ck is missing
        OMAPFB: Fix possible null pointer dereferencing
        OMAPDSS: HDMI: fix missing unlock on error in hdmi_dump_regs()
        omapdss: dss: Fix clocks on OMAP363x
        OMAPDSS: DSI: fix dsi_get_dsidev_from_id()
    • Linus Torvalds's avatar
      Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux · 33f14593
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "Bugfixes for the i2c subsystem.
        Except for a few one-liners, there is mainly one revert because of an
        overlooked dependency.  Since there is no linux-next at the moment, I
        did some extra testing, and all was fine for me."
      * 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
        i2c: mxs: Handle i2c DMA failure properly
        i2c: s3c2410: Fix code to free gpios
        i2c: omap: ensure writes to dev->buf_len are ordered
        Revert "ARM: OMAP: convert I2C driver to PM QoS for MPU latency constraints"
        i2c: at91: fix SMBus quick command
    • Linus Torvalds's avatar
      Merge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · f470b8c2
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "The highlight of this update is the fixes for ASoC kirkwood by
        Russell.  In addition to that, a couple of regression fixes for
        HD-audio due to the runtime PM support on 3.7, and other driver-
        specific regression fixes like USB MIDI on non-standard USB audio
      * tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: snd-usb: properly initialize the sync endpoint
        ALSA: hda - Cirrus: Correctly clear line_out_pins when moving to speaker
        ALSA: hda - Add support for Realtek ALC292
        ASoC: kirkwood-i2s: more pause-mode fixes
        ASoC: kirkwood-i2s: fix DMA underruns
        ASoC: kirkwood-i2s: fix DCO lock detection
        ASoC: kirkwood-dma: don't ignore other irq causes on error
        ASoC: kirkwood-dma: fix use of virt_to_phys()
        ALSA: hda - Limit runtime PM support only to known Intel chips
        ALSA: hda - Fix recursive suspend/resume call
        ALSA: ua101, usx2y: fix broken MIDI output
        ASoC: arizona: Fix typo - Swap value in 48k_rates[] and 44k1_rates[]
        ASoC: bells: Fix up git patch application failure
        ASoC: cs4271: free allocated GPIO
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · eb5aaedd
      Linus Torvalds authored
      Pull networkign fixes from David Miller:
       "Networking bug fixes, Cacio e Pepe edition:
        1) BNX2X accidently accesses chip rev specific registers without an
           appropriate guard, fix from Ariel Elior.
        2) When we removed the routing cache, we set ip_rt_max_size to ~0 just
           to keep reporting a value to userspace via sysfs.  But the ipv4
           IPSEC layer was using this to tune itself which is completely bogus
           to now do.  Fix from Steffen Klassert.
        3) Missing initialization in netfilter ipset code from Jozsef
        4) Check CTA_TIMEOUT_NAME length properly in netfilter cttimeout code,
           fix from Florian Westphal.
        5) After removing the routing cache, we inadvertantly are caching
           multicast routes that end up looping back locally, we cannot do
           that legitimately any more.  Fix from Julian Anastasov.
        6) Revert a race fix for 8139cp qemu/kvm that doesn't actually work
           properly on real hardware.  From Francois Romieu.
        7) Fixup errors in example command lines in VXLAN device docs."
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        bnx2x: remove redundant warning log
        vxlan: fix command usage in its doc
        8139cp: revert "set ring address before enabling receiver"
        ipv4: do not cache looped multicasts
        netfilter: cttimeout: fix buffer overflow
        netfilter: ipset: Fix range bug in hash:ip,port,net
        xfrm: Fix the gc threshold value for ipv4
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · f3a443af
      Linus Torvalds authored
      Pull sparc fix from David Miller:
       "Bug fix from Al Viro"
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc64: not any error from do_sigaltstack() should fail rt_sigreturn()
    • Linus Torvalds's avatar
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 45aaff06
      Linus Torvalds authored
      Pull one more ARM SoC fix from Olof Johansson:
       "I missed one pull request from Samsung with one fix in the previous
        batch.  Here it is -- a dma driver fix for an early version of silicon
        that they still support."
      * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: EXYNOS: PL330 MDMA1 fix for revision 0 of Exynos4210 SOC
    • Guennadi Liakhovetski's avatar
      PM / QoS: fix wrong error-checking condition · a7227a0f
      Guennadi Liakhovetski authored
      dev_pm_qos_add_request() can return 0, 1, or a negative error code,
      therefore the correct error test is "if (error < 0)." Checking just for
      non-zero return code leads to erroneous setting of the req->dev pointer
      to NULL, which then leads to a repeated call to
      dev_pm_qos_add_ancestor_request() in st1232_ts_irq_handler(). This in turn
      leads to an Oops, when the I2C host adapter is unloaded and reloaded again
      because of the inconsistent state of its QoS request list.
      Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    • Ariel Elior's avatar
      bnx2x: remove redundant warning log · 4a25417c
      Ariel Elior authored
      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
      Signed-off-by: default avatarAriel Elior <ariele@broadcom.com>
      Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Zhi Yong Wu's avatar
      vxlan: fix command usage in its doc · cc9b3101
      Zhi Yong Wu authored
        Some commands don't work in its example doc. The patch will fix it.
      Signed-off-by: default avatarZhi Yong Wu <wuzhy@linux.vnet.ibm.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • françois romieu's avatar
      8139cp: revert "set ring address before enabling receiver" · b26623da
      françois romieu authored
      This patch reverts b01af457.
      The original patch was tested with emulated hardware. Real
      hardware chokes.
      Fixes https://bugzilla.kernel.org/show_bug.cgi?id=47041Signed-off-by: default avatarFrancois Romieu <romieu@fr.zoreil.com>
      Acked-by: default avatarJeff Garzik <jgarzik@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Manuel Lauss's avatar
      MPI: Fix compilation on MIPS with GCC 4.4 and newer · a3cea989
      Manuel Lauss authored
      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: default avatarManuel 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: default avatarRalf Baechle <ralf@linux-mips.org>
    • Al Cooper's avatar
      MIPS: Fix crash that occurs when function tracing is enabled · f93a1a00
      Al Cooper authored
      A recent patch changed some irq routines from inlines to functions.
      These routines are called by the tracer code. Now that they're functions,
      if they are compiled for function tracing they will call the tracer
      and crash the system due to infinite recursion. The fix disables
      tracing in these functions by using "notrace" in the function
      Signed-off-by: default avatarAl Cooper <alcooperx@gmail.com>
      Reviewed-by: default avatarDavid Daney <david.daney@cavium.com>
      Pathchwork: https://patchwork.linux-mips.org/patch/4564/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
    • Ralf Baechle's avatar
      MIPS: Merge overlapping bootmem ranges · 0ec7ec75
      Ralf Baechle authored
      Without this, we may end up with something like this in /proc/iomem:
      01100000-014fffff : System RAM
        01100000-013bf48f : Kernel code
        013bf490-0149e01f : Kernel data
      01500000-0c0fffff : System RAM
      but the two System RAM ranges should be one single range.  This particular
      case will result in kexec failure on Octeon systems if the kernel being
      loaded by kexec is bigger than the already running kernel.
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
    • Roland Dreier's avatar
      block: Don't access request after it might be freed · 893d290f
      Roland Dreier authored
      After we've done __elv_add_request() and __blk_run_queue() in
      blk_execute_rq_nowait(), the request might finish and be freed
      immediately.  Therefore checking if the type is REQ_TYPE_PM_RESUME
      isn't safe afterwards, because if it isn't, rq might be gone.
      Instead, check beforehand and stash the result in a temporary.
      This fixes crashes in blk_execute_rq_nowait() I get occasionally when
      running with lots of memory debugging options enabled -- I think this
      race is usually harmless because the window for rq to be reallocated
      is so small.
      Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
      Cc: stable@kernel.org
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Selvan Mani's avatar
      mtip32xx: Fix padding issue · 836413e8
      Selvan Mani authored
      Hi Jens,
      Another tiny patch.
      Removed __packed before the struct smart_attr and added __packed at end of
      the structure to fix padding issue.
      Signed-off-by: default avatarSelvan Mani  <smani@micron.com>
      Signed-off-by: default avatarAsai Thambi S P <asamymuthupa@micron.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Ed Cashin's avatar
      aoe: avoid running request handler on plugged queue · 11cfb6ff
      Ed Cashin authored
      Calling the request handler directly on a plugged queue defeats
      the performance improvements provided by the plugging mechanism.
      Use the __blk_run_queue function instead of calling the request
      handler directly, so that we don't interfere with the block
      layer's ability to plug the queue.
      Signed-off-by: default avatarEd Cashin <ecashin@coraid.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Wei Yongjun's avatar
      mtip32xx: fix potential NULL pointer dereference in mtip_timeout_function() · 298d8015
      Wei Yongjun authored
      The dereference to port should be moved below the NULL test.
      dpatch engine is used to auto generate this patch.
      Signed-off-by: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Jens Axboe's avatar
      mtip32xx: fix shift larger than type warning · 7c5d6238
      Jens Axboe authored
      If we're building a 32-bit kernel and CONFIG_LBADF isn't set,
      sector_t is 32-bits wide. The shifts by 32 and 40 are thus
      larger than we support.
      Cast the sector offset to a u64 to avoid these warnings.
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Selvan Mani's avatar
      mtip32xx: Fix incorrect mask used for erase mode · 4b9e8845
      Selvan Mani authored
      Previous commit use value 3 for erasemode mask.
      Changing the mask to correct value to 2
      Signed-off-by: default avatarSelvan Mani <smani@micron.com>
      Signed-off-by: default avatarAsai Thambi S P <asamymuthupa@micron.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Selvan Mani's avatar
      mtip32xx: Fix to make lba address correct in big-endian systems · eda45314
      Selvan Mani authored
      Earlier lba address was assigned directly to lba_low and lba_low_ex,
      which would result in a different number (bytes reversed) in
      big-endian systems. Now assigning lba address byte-by-byte to fis.
      Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: default avatarSelvan Mani <smani@micron.com>
      Signed-off-by: default avatarAsai Thambi S P <asamymuthupa@micron.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Selvan Mani's avatar
      mtip32xx: fix potential crash on SEC_ERASE_UNIT · 3208795e
      Selvan Mani authored
      The mtip driver lifted this code from elsewhere and then added a special
      handling check for SEC_ERASE_UNIT. If the caller tries to do a security
      erase but passes no output data for the command then outbuf is not
      allocated and the driver duly explodes.
      Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
      Signed-off-by: default avatarSelvan Mani <smani@micron.com>
      Signed-off-by: default avatarAsai Thambi S P <asamymuthupa@micron.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Jens Axboe's avatar
      dm: fix deadlock with request based dm and queue request_fn recursion · a8c32a5c
      Jens Axboe authored
      Request based dm attempts to re-run the request queue off the
      request completion path. If used with a driver that potentially does
      end_io from its request_fn, we could deadlock trying to recurse
      back into request dispatch. Fix this by punting the request queue
      run to kblockd.
      Tested to fix a quickly reproducible deadlock in such a scenario.
      Cc: stable@kernel.org
      Acked-by: default avatarAlasdair G Kergon <agk@redhat.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
    • Jiri Kosina's avatar
      floppy: destroy floppy workqueue before cleaning up the queue · eac7cc52
      Jiri Kosina authored
      We need to first destroy the floppy_wq workqueue before cleaning up
      the queue. Otherwise we might race with still pending work with the
      workqueue, but all the block queue already gone. This might lead to
      various oopses, such as
       CPU 0
       Pid: 6, comm: kworker/u:0 Not tainted 3.7.0-rc4 #1 Bochs Bochs
       RIP: 0010:[<ffffffff8134eef5>]  [<ffffffff8134eef5>] blk_peek_request+0xd5/0x1c0
       RSP: 0000:ffff88000dc7dd88  EFLAGS: 00010092
       RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
       RDX: ffff88000f602688 RSI: ffffffff81fd95d8 RDI: 6b6b6b6b6b6b6b6b
       RBP: ffff88000dc7dd98 R08: ffffffff81fd95c8 R09: 0000000000000000
       R10: ffffffff81fd9480 R11: 0000000000000001 R12: 6b6b6b6b6b6b6b6b
       R13: ffff88000dc7dfd8 R14: ffff88000dc7dfd8 R15: 0000000000000000
       FS:  0000000000000000(0000) GS:ffffffff81e21000(0000) knlGS:0000000000000000
       CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
       CR2: 0000000000000000 CR3: 0000000001e11000 CR4: 00000000000006f0
       DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
       DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
       Process kworker/u:0 (pid: 6, threadinfo ffff88000dc7c000, task ffff88000dc5ecc0)
        0000000000000000 0000000000000000 ffff88000dc7ddb8 ffffffff8134efee
        ffff88000dc7ddb8 0000000000000000 ffff88000dc7dde8 ffffffff814aef3c
        ffffffff81e75d80 ffff88000dc0c640 ffff88000fbfb000 ffffffff814aed90
       Call Trace:
        [<ffffffff8134efee>] blk_fetch_request+0xe/0x30
        [<ffffffff814aef3c>] redo_fd_request+0x1ac/0x400
        [<ffffffff814aed90>] ? start_motor+0x130/0x130
        [<ffffffff8106b526>] process_one_work+0x136/0x450
        [<ffffffff8106af65>] ? manage_workers+0x205/0x2e0
        [<ffffffff8106bb6d>] worker_thread+0x14d/0x420
        [<ffffffff8106ba20>] ? rescuer_thread+0x1a0/0x1a0
        [<ffffffff8107075a>] kthread+0xba/0xc0
        [<ffffffff810706a0>] ? __kthread_parkme+0x80/0x80
        [<ffffffff818b553a>] ret_from_fork+0x7a/0xb0
        [<ffffffff810706a0>] ? __kthread_parkme+0x80/0x80
       Code: 0f 84 c0 00 00 00 83 f8 01 0f 85 e2 00 00 00 81 4b 40 00 00 80 00 48 89 df e8 58 f8 ff ff be fb ff ff ff
       fe ff ff <49> 8b 1c 24 49 39 dc 0f 85 2e ff ff ff 41 0f b6 84 24 28 04 00
       RIP  [<ffffffff8134eef5>] blk_peek_request+0xd5/0x1c0
        RSP <ffff88000dc7dd88>
      Reported-by: default avatarFengguang Wu <fengguang.wu@intel.com>
      Tested-by: default avatarFengguang Wu <fengguang.wu@intel.com>
      Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>