28 Oct, 2013
13 commits
-
* acpica:
MAINTAINERS / ACPICA: Add ACPICA information to MAINTAINERS
ACPICA: Update version to 20130823.
ACPICA: SCI Handlers: Update handler interface, eliminate unnecessary argument.
ACPICA: Cleanup exception codes.
ACPICA: Tables: Cleanup RSDP signature codes.
ACPICA: Tables: Cleanup table checksum verification code.
ACPICA: Debugger: Add new command to display full namespace pathnames.
ACPICA: Operation region support: Never free the handler "context" pointer.
ACPICA: Add support for host-installed SCI handlers.
ACPICA: Validate start object for acpi_walk_namespace.
ACPICA: Debugger: Prevent possible command line buffer overflow, kernel behavior is not affected.
ACPICA: Linux-specific header: enable "aarch64" 64-bit build.
ACPICA: Debug output: small formatting update, no functional change.
ACPICA: acpi_read: On error, do not modify the return value target location.
ACPICA: Improve error message for "too many parent prefixes" condition. -
* acpi-conversion:
ACPI / AC: Remove AC's proc directory.
ideapad_laptop: convert ideapad device/driver to platform bus
ideapad_laptop: remove ideapad_handle and ideapad_priv
ideapad_laptop: convert internal function calls to use ideapad_private as parameter
ideapad_laptop: introduce struct acpi_device pointer to ideapad_private structure
ideapad_laptop: introduce #ifdef CONFIG_PM_SLEEP for PM specific code
ACPI / AC: convert ACPI ac driver to platform bus -
* acpi-tables:
ACPI / x86: Increase override tables number limit -
* acpi-hotplug:
ACPI / memhotplug: Use defined marco METHOD_NAME__STA
ACPI / hotplug: Use kobject_init_and_add() instead of _init() and _add()
ACPI / hotplug: Don't set kobject parent pointer explicitly
ACPI / hotplug: Set kobject name via kobject_add(), not kobject_set_name()
hotplug, powerpc, x86: Remove cpu_hotplug_driver_lock()
hotplug / x86: Disable ARCH_CPU_PROBE_RELEASE on x86
hotplug / x86: Add hotplug lock to missing places
hotplug / x86: Fix online state in cpu0 debug interface -
* acpi-processor:
ACPI / processor: fixed a brace coding style issue
ACPI / processor: Remove outdated comments
ACPI / processor: remove unnecessary if (!pr) check
ACPI / processor: remove some dead code in acpi_processor_get_info()
x86 / ACPI: simplify _acpi_map_lsapic()
ACPI / processor: use apic_id and remove duplicated _MAT evaluation
ACPI / processor: Introduce apic_id in struct processor to save parsed APIC id -
* acpi-cleanup: (34 commits)
ACPI / proc: Remove alarm proc file
ACPI: Remove CONFIG_ACPI_PROCFS_POWER and cm_sbsc.c
ACPI / SBS: Remove SBS's proc directory
ACPI / Battery: Remove battery's proc directory
ACP / fan: trivial style cleanup
ACPI / processor: remove superfluous pr == NULL checks
ACPI / mm: use NUMA_NO_NODE
toshiba_acpi: convert acpi_evaluate_object() to acpi_evaluate_integer()
intel-smartconnect: convert acpi_evaluate_object() to acpi_evaluate_integer()
intel-rst: convert acpi_evaluate_object() to acpi_evaluate_integer()
fujitsu-laptop: convert acpi_evaluate_object() to acpi_evaluate_integer()
i2c-hid: convert acpi_evaluate_object() to acpi_evaluate_integer()
ACPI: dock: convert acpi_evaluate_object() to acpi_evaluate_integer()
acpi_processor: convert acpi_evaluate_object() to acpi_evaluate_integer()
pnpacpi: convert acpi_get_handle() to acpi_has_method()
wmi: convert acpi_get_handle() to acpi_has_method()
toshiba_acpi: convert acpi_get_handle() to acpi_has_method()
sony-laptop: convert acpi_get_handle() to acpi_has_method()
intel_menlow: convert acpi_get_handle() to acpi_has_method()
fujitsu-laptop: convert acpi_get_handle() to acpi_has_method()
... -
Pull parisc fix from Helge Deller:
"This is a 2-line patch to save the CPU register which holds our task
thread info pointer before calling a firmware function and then to
restore it again afterwards.This is necessary because on some 64bit machines the high-order 32bits
are being clobbered by the firmware call, and thus we failed to bring
up secondary CPUs (and instead crashed the kernel) in some situations
eg if we had more than 4GB RAM. This patch fixes a bug which has been
since ever in the parisc linux kernel and which prevented some people
to use a 64bit kernel"* 'parisc-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Do not crash 64bit SMP kernels on machines with >= 4GB RAM -
Pull timer fix from Ingo Molnar:
"This tree contains a clockevents regression fix for certain ARM
subarchitectures"* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clockevents: Sanitize ticks to nsec conversion -
Pull perf fixes from Ingo Molnar:
"The tree contains three fixes:- Two tooling fixes
- Reversal of the new 'MMAP2' extended mmap record ABI, introduced in
this merge window. (Patches were proposed to fix it but it was all
a bit late and we felt it's safer to just delay the ABI one more
kernel release and do it right)"* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Disable PERF_RECORD_MMAP2 support
perf scripting perl: Fix build error on Fedora 12
perf probe: Fix to initialize fname always before use it -
Pull locking fix from Ingo Molnar:
"This tree fixes a boot crash in CONFIG_DEBUG_MUTEXES=y kernels, on
kernels built with GCC 3.x (there are still such distros)"Side note: it's not just a fix for old gcc versions, it's also removing
an incredibly broken/subtle check that LLVM had issues with, and that
made no sense.* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mutex: Avoid gcc version dependent __builtin_constant_p() usage -
Pull SCSI target fixes from Nicholas Bellinger:
"Here are the outstanding target pending fixes for v3.12-rc7.This includes a number of EXTENDED_COPY related fixes as a result of
Thomas and Doug's continuing testing and feedback.Also included is an important vhost/scsi fix that addresses a long
standing issue where the 'write' parameter for get_user_pages_fast()
was incorrectly set for virtio-scsi WRITEs -> DMA_TO_DEVICE, and not
for virtio-scsi READs -> DMA_FROM_DEVICE.This resulted in random userspace segfaults and other unpleasantness
on KVM host, and unfortunately has been an issue since the initial
merge of vhost/scsi in v3.6. This patch is CC'ed to stable, along
with two other less critical items"* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
vhost/scsi: Fix incorrect usage of get_user_pages_fast write parameter
target/pscsi: fix return value check
target: Fail XCOPY for non matching source + destination block_size
target: Generate failure for XCOPY I/O with non-zero scsi_status
target: Add missing XCOPY I/O operation sense_buffer
iser-target: check device before dereferencing its variable
target: Return an error for WRITE SAME with ANCHOR==1
target: Fix assignment of LUN in tracepoints
target: Reject EXTENDED_COPY when emulate_3pc is disabled
target: Allow non zero ListID in EXTENDED_COPY parameter list
target: Make target_do_xcopy failures return INVALID_PARAMETER_LIST -
Pull slave-dmaengine fixes from Vinod Koul:
"Here is the late fixes pull request for dmaengine while you fly back
from KS.We have a new dmaengine ML hosted by vger so a patch for that along
with addition of Dave as driver mainatainer for ioat. Other fixes are
memeory leak fixes on edma driver, small fixes on rcar-hpbdma driver
by Sergei"* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: edma: fix another memory leak
dma: edma: Fix memory leak
MAINTAINERS: add to ioatdma maintainer list
MAINTAINERS: add the new dmaengine mailing list
27 Oct, 2013
1 commit
-
Since the beginning of the parisc-linux port, sometimes 64bit SMP kernels were
not able to bring up other CPUs than the monarch CPU and instead crashed the
kernel. The reason was unclear, esp. since it involved various machines (e.g.
J5600, J6750 and SuperDome). Testing showed, that those crashes didn't happened
when less than 4GB were installed, or if a 32bit Linux kernel was booted.In the end, the fix for those SMP problems is trivial:
During the early phase of the initialization of the CPUs, including the monarch
CPU, the PDC_PSW firmware function to enable WIDE (=64bit) mode is called.
It's documented that this firmware function may clobber various registers, and
one one of those possibly clobbered registers is %cr30 which holds the task
thread info pointer.Now, if %cr30 would always have been clobbered, then this bug would have been
detected much earlier. But lots of testing finally showed, that - at least for
%cr30 - on some machines only the upper 32bits of the 64bit register suddenly
turned zero after the firmware call.So, after finding the root cause, the explanation for the various crashes
became clear:
- On 32bit SMP Linux kernels all upper 32bit were zero, so we didn't faced this
problem.
- Monarch CPUs in 64bit mode always booted sucessfully, because the inital task
thread info pointer was below 4GB.
- Secondary CPUs booted sucessfully on machines with less than 4GB RAM because
the upper 32bit were zero anyay.
- Secondary CPus failed to boot if we had more than 4GB RAM and the task thread
info pointer was located above the 4GB boundary.Finally, the patch to fix this problem is trivial by saving the %cr30 register
before the firmware call and restoring it afterwards.Signed-off-by: Helge Deller
Signed-off-by: John David Anglin
Cc: # 2.6.12+
Signed-off-by: Helge Deller
26 Oct, 2013
6 commits
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Pull ACPI and power management fixes from
"These fix two bugs in the intel_pstate driver, a hibernate bug leading
to nasty resume failures sometimes and acpi-cpufreq initialization bug
that causes problems to happen during module unload when intel_pstate
is in use.Specifics:
- Fix for rounding errors in intel_pstate causing CPU utilization to
be underestimated from Brennan Shacklett.- intel_pstate fix to always use the correct max pstate value when
computing the min pstate from Dirk Brandewie.- Hibernation fix for deadlocking resume in cases when the probing of
the device containing the image is deferred from Russ Dill.- acpi-cpufreq fix to prevent the module from staying in memory when
the driver cannot be registered and then attempting to unregister
things that have never been registered on exit"* tag 'pm+acpi-3.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
acpi-cpufreq: Fail initialization if driver cannot be registered
PM / hibernate: Move software_resume to late_initcall_sync
intel_pstate: Correct calculation of min pstate value
intel_pstate: Improve accuracy by not truncating until final result -
Pull final mtd fixes from Brian Norris:
"A few more last-minute regression fixes, prepared jointly by me and
David Woodhouse:- Revert pxa3xx to its old name to avoid breaking existing
'mtdparts=' boot strings.- Return GPMI NAND to its legacy ECC layout for backwards
compatibility. We will revisit this in 3.13.A note from David on the latter fix: 'This leaves a harmless cosmetic
warning about an unused function. At this point in the cycle I really
don't care.'"* tag 'for-linus-20131025' of git://git.infradead.org/linux-mtd:
mtd: gpmi: fix ECC regression
mtd: nand: pxa3xx: Fix registered MTD name -
This patch addresses a long-standing bug where the get_user_pages_fast()
write parameter used for setting the underlying page table entry permission
bits was incorrectly set to write=1 for data_direction=DMA_TO_DEVICE, and
passed into get_user_pages_fast() via vhost_scsi_map_iov_to_sgl().However, this parameter is intended to signal WRITEs to pinned userspace
PTEs for the virtio-scsi DMA_FROM_DEVICE -> READ payload case, and *not*
for the virtio-scsi DMA_TO_DEVICE -> WRITE payload case.This bug would manifest itself as random process segmentation faults on
KVM host after repeated vhost starts + stops and/or with lots of vhost
endpoints + LUNs.Cc: Stefan Hajnoczi
Cc: Michael S. Tsirkin
Cc: Asias He
Cc: # 3.6+
Signed-off-by: Nicholas Bellinger -
In case of error, the function scsi_host_lookup() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.Signed-off-by: Wei Yongjun
Cc:
Signed-off-by: Nicholas Bellinger -
Pull vfs fixes (try two) from Al Viro:
"nfsd performance regression fix + seq_file lseek(2) fix"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
seq_file: always update file->f_pos in seq_lseek()
nfsd regression since delayed fput() -
The "legacy" ECC layout used until 3.12-rc1 uses all the OOB area by
computing the ECC strength and ECC step size ourselves.Commit 2febcdf84b ("mtd: gpmi: set the BCHs geometry with the ecc info")
makes the driver use the ECC info (ECC strength and ECC step size)
provided by the MTD code, and creates a different NAND ECC layout
for the BCH, and use the new ECC layout. This causes a regression:We can not mount the ubifs which was created by the old NAND ECC layout.
This patch fixes this issue by reverting to the legacy ECC layout.
We will probably introduce a new device-tree property to indicate that
the new ECC layout can be used. For now though, for the imminent 3.12
release, we just unconditionally revert to the 3.11 behaviour.This leaves a harmless cosmetic warning about an unused function. At
this point in the cycle I really don't care.Signed-off-by: David Woodhouse
Signed-off-by: Brian Norris
Acked-by: Huang Shijie
Acked-by: Marek Vasut
Tested-by: Marek Vasut
25 Oct, 2013
9 commits
-
This issue was first pointed out by Jiaxing Wang several months ago, but no
further comments:
https://lkml.org/lkml/2013/6/29/41As we know pread() does not change f_pos, so after pread(), file->f_pos
and m->read_pos become different. And seq_lseek() does not update file->f_pos
if offset equals to m->read_pos, so after pread() and seq_lseek()(lseek to
m->read_pos), then a subsequent read may read from a wrong position, the
following program produces the problem:char str1[32] = { 0 };
char str2[32] = { 0 };
int poffset = 10;
int count = 20;/*open any seq file*/
int fd = open("/proc/modules", O_RDONLY);pread(fd, str1, count, poffset);
printf("pread:%s\n", str1);/*seek to where m->read_pos is*/
lseek(fd, poffset+count, SEEK_SET);/*supposed to read from poffset+count, but this read from position 0*/
read(fd, str2, count);
printf("read:%s\n", str2);out put:
pread:
ck_netbios_ns 12665
read:
nf_conntrack_netbios/proc/modules:
nf_conntrack_netbios_ns 12665 0 - Live 0xffffffffa038b000
nf_conntrack_broadcast 12589 1 nf_conntrack_netbios_ns, Live 0xffffffffa0386000So we always update file->f_pos to offset in seq_lseek() to fix this issue.
Signed-off-by: Jiaxing Wang
Signed-off-by: Gu Zheng
Signed-off-by: Al Viro -
Make acpi_cpufreq_init() return error codes when the driver cannot be
registered so that the module doesn't stay useless in memory and so
that acpi_cpufreq_exit() doesn't attempt to unregister things that
have never been registered when the module is unloaded.Signed-off-by: Rafael J. Wysocki
Acked-by: Viresh Kumar -
Pull ARM SoC fixes from Olof Johansson:
"There's really only one bugfix in this branch, which is a fix for
timers on the integrator platform. Since Linus Walleij is
resurrecting support for the platform it seems valuable to get the fix
into 3.12 even though the regression has been around a while.The rest are a handful of maintainers updates. If you prefer to hold
those until 3.13 then just merge the first patch on the branch which
is the fix"* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
MAINTAINERS: Add maintainers entry for Rockchip SoCs
MAINTAINERS: Tegra updates, and driver ownership
MAINTAINERS: ARM: mvebu: add Sebastian Hesselbarth
ARM: integrator: deactivate timer0 on the Integrator/CP -
…/git/tyhicks/ecryptfs
Pull ecryptfs fixes from Tyler Hicks:
"Two important fixes
- Fix long standing memory leak in the (rarely used) public key
support
- Fix large file corruption on 32 bit architectures"* tag 'ecryptfs-3.12-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: fix 32 bit corruption issue
ecryptfs: Fix memory leakage in keystore.c -
software_resume is being called after deferred_probe_initcall in
drivers base. If the probing of the device that contains the resume
image is deferred, and the system has been instructed to wait for
it to show up, this wait will occur in software_resume. This causes
a deadlock.Move software_resume into late_initcall_sync so that it happens
after all the other late_initcalls.Signed-off-by: Russ Dill
Acked-by: Pavel Machek
Signed-off-by: Rafael J. Wysocki -
In a recent commit:
commit f455578dd961087a5cf94730d9f6489bb1d355f0
Author: Ezequiel Garcia
Date: Mon Aug 12 14:14:53 2013 -0300mtd: nand: pxa3xx: Remove hardcoded mtd name
There's no advantage in using a hardcoded name for the mtd device.
Instead use the provided by the platform_device.The MTD name was changed to use the one provided by the platform_device.
However, this can be problematic as some users want to set partitions
using the kernel parameter 'mtdparts', where the name is needed.Therefore, to avoid regressions in users relying in 'mtdparts' we revert
the change and use the previous one 'pxa3xx_nand-0'.While at it, let's put a big comment and prevent this change from happening
ever again.Signed-off-by: Ezequiel Garcia
Signed-off-by: Brian Norris -
Shifting page->index on 32 bit systems was overflowing, causing
data corruption of > 4GB files. Fix this by casting it first.https://launchpad.net/bugs/1243636
Signed-off-by: Colin Ian King
Reported-by: Lars Duesing
Cc: stable@vger.kernel.org # v3.11+
Signed-off-by: Tyler Hicks -
commit 4b6271a6 fix a menory leak but one more existed in driver so fix that
Signed-off-by: Vinod Koul
-
When it fails to allocate a slot, edesc should be free'd before return;
Signed-off-by: Valentin Ilie
Signed-off-by: Vinod Koul
24 Oct, 2013
11 commits
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This patch adds an explicit check + failure for XCOPY I/O to source +
destination devices with a non-matching block_size.This limitiation is currently due to the fact that the scatterlist
memory allocated for the XCOPY READ operation is passed zero-copy
to the XCOPY WRITE operation.Reported-by: Thomas Glanzmann
Reported-by: Douglas Gilbert
Cc: Thomas Glanzmann
Cc: Douglas Gilbert
Signed-off-by: Nicholas Bellinger -
This patch adds the missing non-zero se_cmd->scsi_status check required
for local XCOPY I/O within target_xcopy_issue_pt_cmd() to signal an
exception case failure.This will trigger the generation of SAM_STAT_CHECK_CONDITION status
from within target_xcopy_do_work() process context code.Reported-by: Thomas Glanzmann
Reported-by: Douglas Gilbert
Cc: Thomas Glanzmann
Cc: Douglas Gilbert
Signed-off-by: Nicholas Bellinger -
This patch adds the missing xcopy_pt_cmd->sense_buffer[] required for
correctly handling CHECK_CONDITION exceptions within the locally
generated XCOPY I/O path.Also update target_xcopy_read_source() + target_xcopy_setup_pt_cmd()
to pass this buffer into transport_init_se_cmd() to correctly setup
se_cmd->sense_buffer.Reported-by: Thomas Glanzmann
Reported-by: Douglas Gilbert
Cc: Thomas Glanzmann
Cc: Douglas Gilbert
Signed-off-by: Nicholas Bellinger -
Pull md bugfixes from Neil Brown:
"Assorted md bug-fixes for 3.12.All tagged for -stable releases too"
* tag 'md/3.12-fixes' of git://neil.brown.name/md:
raid5: avoid finding "discard" stripe
raid5: set bio bi_vcnt 0 for discard request
md: avoid deadlock when md_set_badblocks.
md: Fix skipping recovery for read-only arrays. -
Pull SCSI fixes from James Bottomley:
"This is a set of two fixes which cause oopses (Buslogic, qla2xxx) and
one fix which may cause a hang because of request miscounting (sd)"* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] sd: call blk_pm_runtime_init before add_disk
[SCSI] qla2xxx: Fix request queue null dereference.
[SCSI] BusLogic: Fix an oops when intializing multimaster adapter -
This patch changes isert_connect_release() to correctly check for
the existence struct isert_device *device before checking for
isert_device->use_frwr.Signed-off-by: Vu Pham
Signed-off-by: Nicholas Bellinger -
SCSI discard will damage discard stripe bio setting, eg, some fields are
changed. If the stripe is reused very soon, we have wrong bios setting. We
remove discard stripe from hash list, so next time the strip will be fully
initialized.Suitable for backport to 3.7+.
Cc: (3.7+)
Signed-off-by: Shaohua Li
Signed-off-by: NeilBrown -
SCSI layer will add new payload for discard request. If two bios are merged
to one, the second bio has bi_vcnt 1 which is set in raid5. This will confuse
SCSI and cause oops.Suitable for backport to 3.7+
Cc: stable@vger.kernel.org (v3.7+)
Reported-by: Jes Sorensen
Signed-off-by: Shaohua Li
Signed-off-by: NeilBrown
Acked-by: Martin K. Petersen -
When operate harddisk and hit errors, md_set_badblocks is called after
scsi_restart_operations which already disabled the irq. but md_set_badblocks
will call write_sequnlock_irq and enable irq. so softirq can preempt the
current thread and that may cause a deadlock. I think this situation should
use write_sequnlock_irqsave/irqrestore instead.I met the situation and the call trace is below:
[ 638.919974] BUG: spinlock recursion on CPU#0, scsi_eh_13/1010
[ 638.921923] lock: 0xffff8800d4d51fc8, .magic: dead4ead, .owner: scsi_eh_13/1010, .owner_cpu: 0
[ 638.923890] CPU: 0 PID: 1010 Comm: scsi_eh_13 Not tainted 3.12.0-rc5+ #37
[ 638.925844] Hardware name: To be filled by O.E.M. To be filled by O.E.M./MAHOBAY, BIOS 4.6.5 03/05/2013
[ 638.927816] ffff880037ad4640 ffff880118c03d50 ffffffff8172ff85 0000000000000007
[ 638.929829] ffff8800d4d51fc8 ffff880118c03d70 ffffffff81730030 ffff8800d4d51fc8
[ 638.931848] ffffffff81a72eb0 ffff880118c03d90 ffffffff81730056 ffff8800d4d51fc8
[ 638.933884] Call Trace:
[ 638.935867] [] dump_stack+0x55/0x76
[ 638.937878] [] spin_dump+0x8a/0x8f
[ 638.939861] [] spin_bug+0x21/0x26
[ 638.941836] [] do_raw_spin_lock+0xa4/0xc0
[ 638.943801] [] _raw_spin_lock+0x66/0x80
[ 638.945747] [] ? scsi_device_unbusy+0x9d/0xd0
[ 638.947672] [] ? _raw_spin_unlock+0x2b/0x50
[ 638.949595] [] scsi_device_unbusy+0x9d/0xd0
[ 638.951504] [] scsi_finish_command+0x37/0xe0
[ 638.953388] [] scsi_softirq_done+0xa8/0x140
[ 638.955248] [] blk_done_softirq+0x7b/0x90
[ 638.957116] [] __do_softirq+0xfd/0x330
[ 638.958987] [] ? __lock_release+0x6f/0x100
[ 638.960861] [] call_softirq+0x1c/0x30
[ 638.962724] [] do_softirq+0x8d/0xc0
[ 638.964565] [] irq_exit+0x10e/0x150
[ 638.966390] [] smp_apic_timer_interrupt+0x4a/0x60
[ 638.968223] [] apic_timer_interrupt+0x6f/0x80
[ 638.970079] [] ? __lock_release+0x6f/0x100
[ 638.971899] [] ? _raw_spin_unlock_irq+0x3a/0x50
[ 638.973691] [] ? _raw_spin_unlock_irq+0x30/0x50
[ 638.975475] [] md_set_badblocks+0x1f3/0x4a0
[ 638.977243] [] rdev_set_badblocks+0x27/0x80
[ 638.978988] [] raid5_end_read_request+0x36b/0x4e0 [raid456]
[ 638.980723] [] bio_endio+0x1d/0x40
[ 638.982463] [] req_bio_endio.isra.65+0x83/0xa0
[ 638.984214] [] blk_update_request+0x7f/0x350
[ 638.985967] [] blk_update_bidi_request+0x31/0x90
[ 638.987710] [] __blk_end_bidi_request+0x20/0x50
[ 638.989439] [] __blk_end_request_all+0x1f/0x30
[ 638.991149] [] blk_peek_request+0x106/0x250
[ 638.992861] [] ? scsi_kill_request.isra.32+0xe9/0x130
[ 638.994561] [] scsi_request_fn+0x4a/0x3d0
[ 638.996251] [] __blk_run_queue+0x37/0x50
[ 638.997900] [] blk_run_queue+0x2f/0x50
[ 638.999553] [] scsi_run_queue+0xe0/0x1c0
[ 639.001185] [] scsi_run_host_queues+0x21/0x40
[ 639.002798] [] scsi_restart_operations+0x177/0x200
[ 639.004391] [] scsi_error_handler+0xc9/0xe0
[ 639.005996] [] ? scsi_unjam_host+0xd0/0xd0
[ 639.007600] [] kthread+0xdb/0xe0
[ 639.009205] [] ? flush_kthread_worker+0x170/0x170
[ 639.010821] [] ret_from_fork+0x7c/0xb0
[ 639.012437] [] ? flush_kthread_worker+0x170/0x170This bug was introduce in commit 2e8ac30312973dd20e68073653
(the first time rdev_set_badblock was call from interrupt context),
so this patch is appropriate for 3.5 and subsequent kernels.Cc: (3.5+)
Signed-off-by: Bian Yu
Reviewed-by: Jianpeng Ma
Signed-off-by: NeilBrown -
Since:
commit 7ceb17e87bde79d285a8b988cfed9eaeebe60b86
md: Allow devices to be re-added to a read-only array.spares are activated on a read-only array. In case of raid1 and raid10
personalities it causes that not-in-sync devices are marked in-sync
without checking if recovery has been finished.If a read-only array is degraded and one of its devices is not in-sync
(because the array has been only partially recovered) recovery will be skipped.This patch adds checking if recovery has been finished before marking a device
in-sync for raid1 and raid10 personalities. In case of raid5 personality
such condition is already present (at raid5.c:6029).Bug was introduced in 3.10 and causes data corruption.
Cc: stable@vger.kernel.org
Signed-off-by: Pawel Baldysiak
Signed-off-by: Lukasz Dorau
Signed-off-by: NeilBrown -
Signed-off-by: Dave Jiang
[djbw: add dmaengine list]
Signed-off-by: Dan Williams
Signed-off-by: Vinod Koul
