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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"I have two patches for 5.16:
- allow external modules to be built against read-only source trees
- turn KVM on in the defconfigs
The second one isn't technically a fix, but it got tied up pending
some defconfig cleanups that ended up finding some larger issues. I
figured it'd be better to get the config changes some more testing,
but didn't want to hold up turning KVM on for that"
* tag 'riscv-for-linus-5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: fix building external modules
RISC-V: Enable KVM in RV64 and RV32 defconfigs as a module
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull exit-vs-signal handling fixes from Eric Biederman:
"This is a small set of changes where debuggers were no longer able to
intercept synchronous SIGTRAP and SIGSEGV, introduced by the exit
cleanups.
This is essentially the change you suggested with all of i's dotted
and the t's crossed so that ptrace can intercept all of the cases it
has been able to intercept the past, and all of the cases that made it
to exit without giving ptrace a chance still don't give ptrace a
chance"
* 'SA_IMMUTABLE-fixes-for-v5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
signal: Replace force_fatal_sig with force_exit_sig when in doubt
signal: Don't always set SA_IMMUTABLE for forced signals
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Six fixes, five in drivers (ufs, qla2xxx, iscsi) and one core change
to fix a regression in user space device state setting, which is used
by the iscsi daemons to effect device recovery"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix mailbox direction flags in qla2xxx_get_adapter_id()
scsi: ufs: core: Fix another task management completion race
scsi: ufs: core: Fix task management completion timeout race
scsi: core: sysfs: Fix hang when device state is set via sysfs
scsi: iscsi: Unblock session then wake up error handler
scsi: ufs: core: Improve SCSI abort handling
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Pull rdma fixes from Jason Gunthorpe:
"There are a few big regression items from the merge window suggesting
that people are testing rc1's but not testing the for-next branches:
- Warnings fixes
- Crash in hf1 when creating QPs and setting counters
- Some old mlx4 cards fail to probe due to missing counters
- Syzkaller crash in the new counters code"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
MAINTAINERS: Update for VMware PVRDMA driver
RDMA/nldev: Check stat attribute before accessing it
RDMA/mlx4: Do not fail the registration on port stats
IB/hfi1: Properly allocate rdma counter desc memory
RDMA/core: Set send and receive CQ before forwarding to the driver
RDMA/netlink: Add __maybe_unused to static inline in C file
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix a coccicheck warning in gpio-virtio
- fix gpio selftests build issues
- fix a Kconfig issue in gpio-rockchip
* tag 'gpio-fixes-for-v5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: rockchip: needs GENERIC_IRQ_CHIP to fix build errors
selftests: gpio: restore CFLAGS options
selftests: gpio: fix uninitialised variable warning
selftests: gpio: fix gpio compiling error
gpio: virtio: remove unneeded semicolon
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Pull drm fixes from Dave Airlie:
"This week's fixes, pretty quiet, about right for rc2. amdgpu is the
bulk of them but the scheduler ones have been reported in a few places
I think.
Otherwise just some minor i915 fixes and a few other scattered around:
scheduler:
- two refcounting fixes
cma-helper:
- use correct free path for noncoherent
efifb:
- probing fix
amdgpu:
- Better debugging info for SMU msgs
- Better error reporting when adding IP blocks
- Fix UVD powergating regression on CZ
- Clock reporting fix for navi1x
- OLED panel backlight fix
- Fix scaling on VGA/DVI for non-DC display code
- Fix GLFCLK handling for RGP on some APUs
- fix potential memory leak
amdkfd:
- GPU reset fix
i915:
- return error handling fix
- ADL-P display fix
- TGL DSI display clocks fix
nouveau:
- infoframe corruption fix
sun4i:
- Kconfig fix"
* tag 'drm-fixes-2021-11-19' of git://anongit.freedesktop.org/drm/drm:
drm/amd/amdgpu: fix potential memleak
drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again
drm/amd/pm: add GFXCLK/SCLK clocks level print support for APUs
drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga and dvi connectors
drm/amd/display: Fix OLED brightness control on eDP
drm/amd/pm: Remove artificial freq level on Navi1x
drm/amd/pm: avoid duplicate powergate/ungate setting
drm/amdgpu: add error print when failing to add IP block(v2)
drm/amd/pm: Enhanced reporting also for a stuck command
drm/i915/guc: fix NULL vs IS_ERR() checking
drm/i915/dsi/xelpd: Fix the bit mask for wakeup GB
Revert "drm/i915/tgl/dsi: Gate the ddi clocks after pll mapping"
fbdev: Prevent probing generic drivers if a FB is already registered
drm/scheduler: fix drm_sched_job_add_implicit_dependencies harder
drm/scheduler: fix drm_sched_job_add_implicit_dependencies
drm/sun4i: fix unmet dependency on RESET_CONTROLLER for PHY_SUN6I_MIPI_DPHY
drm/cma-helper: Release non-coherent memory with dma_free_noncoherent()
drm/nouveau: hdmigv100.c: fix corrupted HDMI Vendor InfoFrame
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When commit 5d1ceb3969b6 ("x86: Fix __get_wchan() for !STACKTRACE")
moved from stacktrace to native unwind_*() usage, the
try_get_task_stack() got lost, leading to use-after-free issues for
dying tasks.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Fixes: 5d1ceb3969b6 ("x86: Fix __get_wchan() for !STACKTRACE")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215031
Link: https://lore.kernel.org/stable/YZV02RCRVHIa144u@fedora64.linuxtx.org/
Reported-by: Justin Forbes <jmforbes@linuxtx.org>
Reported-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Lets be thorough here. Users of the TTM backend would likely expect this
behaviour.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-6-matthew.auld@intel.com
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It's just an alias to vma->obj->base.resv, no need to duplicate it.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-5-matthew.auld@intel.com
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vma->obj and vma->resv are now never NULL, and some checks can be removed.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-4-matthew.auld@intel.com
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This allows us to finally get rid of all the assumptions that vma->obj
is NULL.
Changes since v1:
- Ensure the mock_ring vma is pinned to prevent a fault.
- Pin it high to avoid failure in evict_for_vma selftest.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-3-matthew.auld@intel.com
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We currently have to special case vma->obj being NULL because
of gen6 ppgtt and mock_engine. Fix gen6 ppgtt, so we may soon
be able to remove a few checks. As the object only exists as
a fake object pointing to ggtt, we have no backing storage,
so no real object is created. It just has to look real enough.
Also kill pin_mutex, it's not compatible with ww locking,
and we can use the vm lock instead.
v2:
- Drop IS_SHRINKABLE and shorten overly long line
v3:
- Checkpatch fix for alignment
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-2-matthew.auld@intel.com
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In intel_context_do_pin_ww, when calling into the pre_pin hook(which is
passed the ww context) it could in theory return -EDEADLK(which is very
likely with debug kernels), once we start adding more ww locking in there,
like in the next patch. If so then we need to be mindful of having to
restart the do_pin at this point.
If this is the kernel_context, or some other early in-kernel context
where we have yet to setup the default_state, then we always inhibit the
context restore, and instead rely on the delayed active_release to set
the CONTEXT_VALID_BIT for us(if we even care), which should indicate
that we have context switched away, and that our newly saved context
state should now be valid. However, since we currently grab the active
reference before the potential ww dance, we can end up setting the
CONTEXT_VALID_BIT much too early, if we need to backoff, and then upon
re-trying the do_pin, we could potentially cause the hardware to
incorrectly load some garbage context state when later context switching
to that context, but at the very least this will trigger the
GEM_BUG_ON() in __engine_unpark. For now let's just move any ww dance
stuff prior to arming the active reference.
For normal user contexts this shouldn't be a concern, since we should
already have the default_state ready when initialising the lrc state,
and so there should be no concern with active_release somehow
prematurely setting the CONTEXT_VALID_BIT.
v2(Thomas):
- Also re-order the onion unwind
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211117142024.1043017-1-matthew.auld@intel.com
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Recently to prevent issues with SECCOMP_RET_KILL and similar signals
being changed before they are delivered SA_IMMUTABLE was added.
Unfortunately this broke debuggers[1][2] which reasonably expect
to be able to trap synchronous SIGTRAP and SIGSEGV even when
the target process is not configured to handle those signals.
Add force_exit_sig and use it instead of force_fatal_sig where
historically the code has directly called do_exit. This has the
implementation benefits of going through the signal exit path
(including generating core dumps) without the danger of allowing
userspace to ignore or change these signals.
This avoids userspace regressions as older kernels exited with do_exit
which debuggers also can not intercept.
In the future is should be possible to improve the quality of
implementation of the kernel by changing some of these force_exit_sig
calls to force_fatal_sig. That can be done where it matters on
a case-by-case basis with careful analysis.
Reported-by: Kyle Huey <me@kylehuey.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
[1] https://lkml.kernel.org/r/CAP045AoMY4xf8aC_4QU_-j7obuEPYgTcnQQP3Yxk=2X90jtpjw@mail.gmail.com
[2] https://lkml.kernel.org/r/20211117150258.GB5403@xsang-OptiPlex-9020
Fixes: 00b06da29cf9 ("signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed")
Fixes: a3616a3c0272 ("signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die")
Fixes: 83a1f27ad773 ("signal/powerpc: On swapcontext failure force SIGSEGV")
Fixes: 9bc508cf0791 ("signal/s390: Use force_sigsegv in default_trap_handler")
Fixes: 086ec444f866 ("signal/sparc32: In setup_rt_frame and setup_fram use force_fatal_sig")
Fixes: c317d306d550 ("signal/sparc32: Exit with a fatal signal when try_to_clear_window_buffer fails")
Fixes: 695dd0d634df ("signal/x86: In emulate_vsyscall force a signal instead of calling do_exit")
Fixes: 1fbd60df8a85 ("signal/vm86_32: Properly send SIGSEGV when the vm86 state cannot be saved.")
Fixes: 941edc5bf174 ("exit/syscall_user_dispatch: Send ordinary signals on failure")
Link: https://lkml.kernel.org/r/871r3dqfv8.fsf_-_@email.froward.int.ebiederm.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Kyle Huey <khuey@kylehuey.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Recently to prevent issues with SECCOMP_RET_KILL and similar signals
being changed before they are delivered SA_IMMUTABLE was added.
Unfortunately this broke debuggers[1][2] which reasonably expect to be
able to trap synchronous SIGTRAP and SIGSEGV even when the target
process is not configured to handle those signals.
Update force_sig_to_task to support both the case when we can allow
the debugger to intercept and possibly ignore the signal and the case
when it is not safe to let userspace know about the signal until the
process has exited.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Kyle Huey <me@kylehuey.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Cc: stable@vger.kernel.org
[1] https://lkml.kernel.org/r/CAP045AoMY4xf8aC_4QU_-j7obuEPYgTcnQQP3Yxk=2X90jtpjw@mail.gmail.com
[2] https://lkml.kernel.org/r/20211117150258.GB5403@xsang-OptiPlex-9020
Fixes: 00b06da29cf9 ("signal: Add SA_IMMUTABLE to ensure forced siganls do not get changed")
Link: https://lkml.kernel.org/r/877dd5qfw5.fsf_-_@email.froward.int.ebiederm.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Kyle Huey <khuey@kylehuey.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Update maintainer info for the VMware PVRDMA driver.
Link: https://lore.kernel.org/r/1637320770-44878-1-git-send-email-bryantan@vmware.com
Reviewed-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Vishnu Dasa <vdasa@vmware.com>
Signed-off-by: Bryan Tan <bryantan@vmware.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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We never insert flush request into scheduler queue before.
Recently commit d92ca9d8348f ("blk-mq: don't handle non-flush requests in
blk_insert_flush") tries to handle FUA data request as normal request.
This way has caused warning[1] in mq-deadline dd_exit_sched() or io hang in
case of kyber since RQF_ELVPRIV isn't set for flush request, then
->finish_request won't be called.
Fix the issue by inserting FUA data request with blk_mq_request_bypass_insert()
when the device supports FUA, just like what we did before.
[1] https://lore.kernel.org/linux-block/CAHj4cs-_vkTW=dAzbZYGxpEWSpzpcmaNeY1R=vH311+9vMUSdg@mail.gmail.com/
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Fixes: d92ca9d8348f ("blk-mq: don't handle non-flush requests in blk_insert_flush")
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20211118153041.2163228-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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If blk_queue_enter() failed due to queue is dying, the
blkdev_put_no_open() is needed because blkcg_conf_open_bdev() succeeded.
Fixes: 0c9d338c8443 ("blk-cgroup: synchronize blkg creation against policy deactivation")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20211102020705.2321858-1-yukuai3@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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When building external modules, vdso_prepare should not be run. If the
kernel sources are read-only, it will fail.
Fixes: fde9c59aebaf ("riscv: explicitly use symbol offsets for VDSO")
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Let's enable KVM RISC-V in RV64 and RV32 defconfigs as module
so that it always built along with the default kernel image.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.16-2021-11-17:
amdgpu:
- Better debugging info for SMU msgs
- Better error reporting when adding IP blocks
- Fix UVD powergating regression on CZ
- Clock reporting fix for navi1x
- OLED panel backlight fix
- Fix scaling on VGA/DVI for non-DC display code
- Fix GLFCLK handling for RGP on some APUs
- fix potential memory leak
amdkfd:
- GPU reset fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211118041638.20831-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
One quick fix for return error handling, one fix for ADL-P display
and one revert targeting stable 5.4, for TGL's DSI display clocks
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YZbUPIHpR1S3JZ2b@intel.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
A infoframe corruption fix for nouveau, a wrong free function usage fix
for GEM CMA helpers, a Kconfig dependency fix for sun4i, two fixes for
drm/scheduler refcounting and a probing fix for efifb.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211118075447.5rn6zaulnrequqnm@gilmour
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If trace_seq becomes full, trace_seq_vprintf() no longer consumes
arguments from va_list, making va_list out of sync with format
processing by trace_check_vprintf().
This causes va_arg() in trace_check_vprintf() to return wrong
positional argument, which results into a WARN_ON_ONCE() hit.
ftrace_stress_test from LTP triggers this situation.
Fix it by explicitly avoiding further use if va_list at the point
when it's consistency can no longer be guaranteed.
Link: https://lkml.kernel.org/r/20211118145516.13219-1-nikita.yushchenko@virtuozzo.com
Signed-off-by: Nikita Yushchenko <nikita.yushchenko@virtuozzo.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memset(), avoid intentionally writing across
neighboring fields.
Use memset_startat() to avoid confusing memset() about writing beyond
the target struct member.
Link: https://lkml.kernel.org/r/20211118202217.1285588-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Pull zstd fixes from Nick Terrell:
"Fix stack usage on parisc & improve code size bloat
This contains three commits:
1. Fixes a minor unused variable warning reported by Kernel test
robot [0].
2. Improves the reported code bloat (-88KB / 374KB) [1] by outlining
some functions that are unlikely to be used in performance
sensitive workloads.
3. Fixes the reported excess stack usage on parisc [2] by removing
-O3 from zstd's compilation flags. -O3 triggered bugs in the
hppa-linux-gnu gcc-8 compiler. -O2 performance is acceptable:
neutral compression, about -1% decompression speed. We also reduce
code bloat (-105KB / 374KB).
After this our code bloat is cut from 374KB to 105KB with gcc-11. If
we wanted to cut the remaining 105KB we'd likely have to trade
signicant performance, so I want to say that this is enough for now.
We should be able to get further gains without sacrificing speed, but
that will take some significant optimization effort, and isn't
suitable for a quick fix. I've opened an upstream issue [3] to track
the code size, and try to avoid future regressions, and improve it in
the long term"
Link: https://lore.kernel.org/linux-mm/202111120312.833wII4i-lkp@intel.com/T/ [0]
Link: https://lkml.org/lkml/2021/11/15/710 [1]
Link: https://lkml.org/lkml/2021/11/14/189 [2]
Link: https://github.com/facebook/zstd/issues/2867 [3]
Link: https://lore.kernel.org/r/20211117014949.1169186-1-nickrterrell@gmail.com/
Link: https://lore.kernel.org/r/20211117201459.1194876-1-nickrterrell@gmail.com/
* tag 'zstd-for-linus-5.16-rc1' of git://github.com/terrelln/linux:
lib: zstd: Don't add -O3 to cflags
lib: zstd: Don't inline functions in zstd_opt.c
lib: zstd: Fix unused variable warning
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix the handling of thermal zones during system resume and
disable building of the int340x thermal driver on 32-bit.
Specifics:
- Prevent the previous high and low thermal zone trip values from
being retained over a system suspend-resume cycle (Manaf
Meethalavalappu Pallikunhi)
- Prevent the int340x thermal driver from being built in 32-bit
kernel configurations, because running it on 32-bit is questionable
(Arnd Bergmann)"
* tag 'thermal-5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Reset previous low and high trip during thermal zone init
thermal: int340x: Limit Kconfig to 64-bit
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a system-wide suspend issue in the DTPM framework and
improve the Energy Model documentation.
Specifics:
- Fix system suspend handling in DTPM when it is enabled, but not
actually used (Daniel Lezcano)
- Describe the new cpufreq callback for Energy Model registration and
explain the "advanced" and "simple" EM variants in the EM
documentation (Lukasz Luba)"
* tag 'pm-5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Documentation: power: Describe 'advanced' and 'simple' EM models
Documentation: power: Add description about new callback for EM registration
powercap: DTPM: Fix suspend failure and kernel warning
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Revert the change attempting to release PM resources blocked by unused
ACPI objects after device enumeration, because it caused boot issues
to appear on multiple systems"
* tag 'acpi-5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI: scan: Release PM resources blocked by unused objects"
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Various build- and bug-fixes as well as one hardware-id addition"
* tag 'platform-drivers-x86-v5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: thinkpad_acpi: fix documentation for adaptive keyboard
platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
platform/x86: thinkpad_acpi: Add support for dual fan control
platform/x86: think-lmi: Abort probe on analyze failure
platform/x86: dell-wmi-descriptor: disable by default
platform/x86: samsung-laptop: Fix typo in a comment
platform/x86: hp_accel: Fix an error handling path in 'lis3lv02d_probe()'
platform/x86: amd-pmc: Make CONFIG_AMD_PMC depend on RTC_CLASS
platform/mellanox: mlxreg-lc: fix error code in mlxreg_lc_create_static_devices()
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few small fixes for v5.16, one in the core for an issue with
handling of controller unregistration that was introduced with the
fixes for registering nested SPI controllers and a few more minor
device specific ones"
* tag 'spi-fix-v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: fix use-after-free of the add_lock mutex
spi: spi-geni-qcom: fix error handling in spi_geni_grab_gpi_chan()
spi: lpspi: Silence error message upon deferred probe
spi: cadence-quadspi: fix write completion support
|
|
After the update to zstd-1.4.10 passing -O3 is no longer necessary to
get good performance from zstd. Using the default optimization level -O2
is sufficient to get good performance.
I've measured no significant change to compression speed, and a ~1%
decompression speed loss, which is acceptable.
This fixes the reported parisc -Wframe-larger-than=1536 errors [0]. The
gcc-8-hppa-linux-gnu compiler performed very poorly with -O3, generating
stacks that are ~3KB. With -O2 these same functions generate stacks in
the < 100B, completely fixing the problem. Function size deltas are
listed below:
ZSTD_compressBlock_fast_extDict_generic: 3800 -> 68
ZSTD_compressBlock_fast: 2216 -> 40
ZSTD_compressBlock_fast_dictMatchState: 1848 -> 64
ZSTD_compressBlock_doubleFast_extDict_generic: 3744 -> 76
ZSTD_fillDoubleHashTable: 3252 -> 0
ZSTD_compressBlock_doubleFast: 5856 -> 36
ZSTD_compressBlock_doubleFast_dictMatchState: 5380 -> 84
ZSTD_copmressBlock_lazy2: 2420 -> 72
Additionally, this improves the reported code bloat [1]. With gcc-11
bloat-o-meter shows an 80KB code size improvement:
```
> ../scripts/bloat-o-meter vmlinux.old vmlinux
add/remove: 31/8 grow/shrink: 24/155 up/down: 25734/-107924 (-82190)
Total: Before=6418562, After=6336372, chg -1.28%
```
Compared to before the zstd-1.4.10 update we see a total code size
regression of 105KB, down from 374KB at v5.16-rc1:
```
> ../scripts/bloat-o-meter vmlinux.old vmlinux
add/remove: 292/62 grow/shrink: 56/88 up/down: 235009/-127487 (107522)
Total: Before=6228850, After=6336372, chg +1.73%
```
[0] https://lkml.org/lkml/2021/11/15/710
[1] https://lkml.org/lkml/2021/11/14/189
Link: https://lore.kernel.org/r/20211117014949.1169186-4-nickrterrell@gmail.com/
Link: https://lore.kernel.org/r/20211117201459.1194876-4-nickrterrell@gmail.com/
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Nick Terrell <terrelln@fb.com>
|
|
`zstd_opt.c` contains the match finder for the highest compression
levels. These levels are already very slow, and are unlikely to be used
in the kernel. If they are used, they shouldn't be used in latency
sensitive workloads, so slowing them down shouldn't be a big deal.
This saves 188 KB of the 288 KB regression reported by Geert Uytterhoeven [0].
I've also opened an issue upstream [1] so that we can properly tackle
the code size issue in `zstd_opt.c` for all users, and can hopefully
remove this hack in the next zstd version we import.
Bloat-o-meter output on x86-64:
```
> ../scripts/bloat-o-meter vmlinux.old vmlinux
add/remove: 6/5 grow/shrink: 1/9 up/down: 16673/-209939 (-193266)
Function old new delta
ZSTD_compressBlock_opt_generic.constprop - 7559 +7559
ZSTD_insertBtAndGetAllMatches - 6304 +6304
ZSTD_insertBt1 - 1731 +1731
ZSTD_storeSeq - 693 +693
ZSTD_BtGetAllMatches - 255 +255
ZSTD_updateRep - 128 +128
ZSTD_updateTree 96 99 +3
ZSTD_insertAndFindFirstIndexHash3 81 - -81
ZSTD_setBasePrices.constprop 98 - -98
ZSTD_litLengthPrice.constprop 138 - -138
ZSTD_count 362 181 -181
ZSTD_count_2segments 1407 938 -469
ZSTD_insertBt1.constprop 2689 - -2689
ZSTD_compressBlock_btultra2 19990 423 -19567
ZSTD_compressBlock_btultra 19633 15 -19618
ZSTD_initStats_ultra 19825 - -19825
ZSTD_compressBlock_btopt 20374 12 -20362
ZSTD_compressBlock_btopt_extDict 29984 12 -29972
ZSTD_compressBlock_btultra_extDict 30718 15 -30703
ZSTD_compressBlock_btopt_dictMatchState 32689 12 -32677
ZSTD_compressBlock_btultra_dictMatchState 33574 15 -33559
Total: Before=6611828, After=6418562, chg -2.92%
```
[0] https://lkml.org/lkml/2021/11/14/189
[1] https://github.com/facebook/zstd/issues/2862
Link: https://lore.kernel.org/r/20211117014949.1169186-3-nickrterrell@gmail.com/
Link: https://lore.kernel.org/r/20211117201459.1194876-3-nickrterrell@gmail.com/
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Nick Terrell <terrelln@fb.com>
|
|
The variable `litLengthSum` is only used by an `assert()`, so when
asserts are disabled the compiler doesn't see any usage and warns.
This issue is already fixed upstream by PR #2838 [0]. It was reported
by the Kernel test robot in [1].
Another approach would be to change zstd's disabled `assert()`
definition to use the argument in a disabled branch, instead of
ignoring the argument. I've avoided this approach because there are
some small changes necessary to get zstd to build, and I would
want to thoroughly re-test for performance, since that is slightly
changing the code in every function in zstd. It seems like a
trivial change, but some functions are pretty sensitive to small
changes. However, I think it is a valid approach that I would
like to see upstream take, so I've opened Issue #2868 to attempt
this upstream.
Lastly, I've chosen not to use __maybe_unused because all code
in lib/zstd/ must eventually be upstreamed. Upstream zstd can't
use __maybe_unused because it isn't portable across all compilers.
[0] https://github.com/facebook/zstd/pull/2838
[1] https://lore.kernel.org/linux-mm/202111120312.833wII4i-lkp@intel.com/T/
[2] https://github.com/facebook/zstd/issues/2868
Link: https://lore.kernel.org/r/20211117014949.1169186-2-nickrterrell@gmail.com/
Link: https://lore.kernel.org/r/20211117201459.1194876-2-nickrterrell@gmail.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nick Terrell <terrelln@fb.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf, mac80211.
Current release - regressions:
- devlink: don't throw an error if flash notification sent before
devlink visible
- page_pool: Revert "page_pool: disable dma mapping support...",
turns out there are active arches who need it
Current release - new code bugs:
- amt: cancel delayed_work synchronously in amt_fini()
Previous releases - regressions:
- xsk: fix crash on double free in buffer pool
- bpf: fix inner map state pruning regression causing program
rejections
- mac80211: drop check for DONT_REORDER in __ieee80211_select_queue,
preventing mis-selecting the best effort queue
- mac80211: do not access the IV when it was stripped
- mac80211: fix radiotap header generation, off-by-one
- nl80211: fix getting radio statistics in survey dump
- e100: fix device suspend/resume
Previous releases - always broken:
- tcp: fix uninitialized access in skb frags array for Rx 0cp
- bpf: fix toctou on read-only map's constant scalar tracking
- bpf: forbid bpf_ktime_get_coarse_ns and bpf_timer_* in tracing
progs
- tipc: only accept encrypted MSG_CRYPTO msgs
- smc: transfer remaining wait queue entries during fallback, fix
missing wake ups
- udp: validate checksum in udp_read_sock() (when sockmap is used)
- sched: act_mirred: drop dst for the direction from egress to
ingress
- virtio_net_hdr_to_skb: count transport header in UFO, prevent
allowing bad skbs into the stack
- nfc: reorder the logic in nfc_{un,}register_device, fix unregister
- ipsec: check return value of ipv6_skip_exthdr
- usb: r8152: add MAC passthrough support for more Lenovo Docks"
* tag 'net-5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (96 commits)
ptp: ocp: Fix a couple NULL vs IS_ERR() checks
net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
ipv6: check return value of ipv6_skip_exthdr
e100: fix device suspend/resume
devlink: Don't throw an error if flash notification sent before devlink visible
page_pool: Revert "page_pool: disable dma mapping support..."
ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
octeontx2-af: debugfs: don't corrupt user memory
NFC: add NCI_UNREG flag to eliminate the race
NFC: reorder the logic in nfc_{un,}register_device
NFC: reorganize the functions in nci_request
tipc: check for null after calling kmemdup
i40e: Fix display error code in dmesg
i40e: Fix creation of first queue by omitting it if is not power of two
i40e: Fix warning message and call stack during rmmod i40e driver
i40e: Fix ping is lost after configuring ADq on VF
i40e: Fix changing previously set num_queue_pairs for PFs
i40e: Fix NULL ptr dereference on VSI filter sync
i40e: Fix correct max_pkt_size on VF RX queue
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Several xes and one old ioctl deprecation. Namely there's fix for
crashes/warnings with lzo compression that was suspected to be caused
by first pull merge resolution, but it was a different bug.
Summary:
- regression fix for a crash in lzo due to missing boundary checks of
the page array
- fix crashes on ARM64 due to missing barriers when synchronizing
status bits between work queues
- silence lockdep when reading chunk tree during mount
- fix false positive warning in integrity checker on devices with
disabled write caching
- fix signedness of bitfields in scrub
- start deprecation of balance v1 ioctl"
* tag 'for-5.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: deprecate BTRFS_IOC_BALANCE ioctl
btrfs: make 1-bit bit-fields of scrub_page unsigned int
btrfs: check-integrity: fix a warning on write caching disabled disk
btrfs: silence lockdep when reading chunk tree during mount
btrfs: fix memory ordering between normal and ordered work functions
btrfs: fix a out-of-bound access in copy_compressed_data_to_page()
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fix from Jan Kara:
"A fix for a long-standing UDF bug where we were not properly
validating directory position inside readdir"
* tag 'fs_for_v5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Fix crash after seekdir
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull setattr idmapping fix from Christian Brauner:
"This contains a simple fix for setattr. When determining the validity
of the attributes the ia_{g,u}id fields contain the value that will be
written to inode->i_{g,u}id. When the {g,u}id attribute of the file
isn't altered and the caller's fs{g,u}id matches the current {g,u}id
attribute the attribute change is allowed.
The value in ia_{g,u}id does already account for idmapped mounts and
will have taken the relevant idmapping into account. So in order to
verify that the {g,u}id attribute isn't changed we simple need to
compare the ia_{g,u}id value against the inode's i_{g,u}id value.
This only has any meaning for idmapped mounts as idmapping helpers are
idempotent without them. And for idmapped mounts this really only has
a meaning when circular idmappings are used, i.e. mappings where e.g.
id 1000 is mapped to id 1001 and id 1001 is mapped to id 1000. Such
ciruclar mappings can e.g. be useful when sharing the same home
directory between multiple users at the same time.
Before this patch we could end up denying legitimate attribute changes
and allowing invalid attribute changes when circular mappings are
used. To even get into this situation the caller must've been
privileged both to create that mapping and to create that idmapped
mount.
This hasn't been seen in the wild anywhere but came up when expanding
the fstest suite during work on a series of hardening patches. All
idmapped fstests pass without any regressions and we're adding new
tests to verify the behavior of circular mappings.
The new tests can be found at [1]"
Link: https://lore.kernel.org/linux-fsdevel/20211109145713.1868404-2-brauner@kernel.org [1]
* tag 'fs.idmapped.v5.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
fs: handle circular mappings correctly
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"parisc bug and warning fixes and wire up futex_waitv.
Fix some warnings which showed up with allmodconfig builds, a revert
of a change to the sigreturn trampoline which broke signal handling,
wire up futex_waitv and add CONFIG_PRINTK_TIME=y to 32bit defconfig"
* tag 'for-5.16/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Enable CONFIG_PRINTK_TIME=y in 32bit defconfig
Revert "parisc: Reduce sigreturn trampoline to 3 instructions"
parisc: Wrap assembler related defines inside __ASSEMBLY__
parisc: Wire up futex_waitv
parisc: Include stringify.h to avoid build error in crypto/api.c
parisc/sticon: fix reverse colors
|
|
Pull KVM fixes from Paolo Bonzini:
"Selftest changes:
- Cleanups for the perf test infrastructure and mapping hugepages
- Avoid contention on mmap_sem when the guests start to run
- Add event channel upcall support to xen_shinfo_test
x86 changes:
- Fixes for Xen emulation
- Kill kvm_map_gfn() / kvm_unmap_gfn() and broken gfn_to_pfn_cache
- Fixes for migration of 32-bit nested guests on 64-bit hypervisor
- Compilation fixes
- More SEV cleanups
Generic:
- Cap the return value of KVM_CAP_NR_VCPUS to both KVM_CAP_MAX_VCPUS
and num_online_cpus(). Most architectures were only using one of
the two"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (42 commits)
KVM: x86: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: s390: Cap KVM_CAP_NR_VCPUS by num_online_cpus()
KVM: RISC-V: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: PPC: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: MIPS: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: arm64: Cap KVM_CAP_NR_VCPUS by kvm_arm_default_max_vcpus()
KVM: x86: Assume a 64-bit hypercall for guests with protected state
selftests: KVM: Add /x86_64/sev_migrate_tests to .gitignore
riscv: kvm: fix non-kernel-doc comment block
KVM: SEV: Fix typo in and tweak name of cmd_allowed_from_miror()
KVM: SEV: Drop a redundant setting of sev->asid during initialization
KVM: SEV: WARN if SEV-ES is marked active but SEV is not
KVM: SEV: Set sev_info.active after initial checks in sev_guest_init()
KVM: SEV: Disallow COPY_ENC_CONTEXT_FROM if target has created vCPUs
KVM: Kill kvm_map_gfn() / kvm_unmap_gfn() and gfn_to_pfn_cache
KVM: nVMX: Use a gfn_to_hva_cache for vmptrld
KVM: nVMX: Use kvm_read_guest_offset_cached() for nested VMCS check
KVM: x86/xen: Use sizeof_field() instead of open-coding it
KVM: nVMX: Use kvm_{read,write}_guest_cached() for shadow_vmcs12
KVM: x86/xen: Fix get_attr of KVM_XEN_ATTR_TYPE_SHARED_INFO
...
|
|
Merge int340x thermal driver Kconfig fix for 5.16-rc2.
* thermal-int340x:
thermal: int340x: Limit Kconfig to 64-bit
|
|
Merge a Dynamic Thermal Power Management (DTPM) framework fix for
5.16-rc2.
* powercap:
powercap: DTPM: Fix suspend failure and kernel warning
|
|
Pull documentation fixes from Jonathan Corbet:
"A handful of documentation fixes for 5.16"
* tag 'docs-5.16-2' of git://git.lwn.net/linux:
Documentation/process: fix a cross reference
Documentation: update vcpu-requests.rst reference
docs: accounting: update delay-accounting.rst reference
libbpf: update index.rst reference
docs: filesystems: Fix grammatical error "with" to "which"
doc/zh_CN: fix a translation error in management-style
docs: ftrace: fix the wrong path of tracefs
Documentation: arm: marvell: Fix link to armada_1000_pb.pdf document
Documentation: arm: marvell: Put Armada XP section between Armada 370 and 375
Documentation: arm: marvell: Add some links to homepage / product infos
docs: Update Sphinx requirements
|
|
Calling destroy_hist_field() on an expression will recursively free
any operands associated with the expression. If during expression
parsing the operands of the expression are already set when an error
is encountered, there is no need to explicity free the operands. Doing
so will result in destroy_hist_field() being called twice for the
operands and lead to a use-after-free (UAF) error.
If the operands are associated with the expression, only call
destroy_hist_field() on the expression since the operands will be
recursively freed.
Link: https://lore.kernel.org/all/CAHk-=wgcrEbFgkw9720H3tW-AhHOoEKhYwZinYJw4FpzSaJ6_Q@mail.gmail.com/
Link: https://lkml.kernel.org/r/20211118011542.1420131-1-kaleshsingh@google.com
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Fixes: 8b5d46fd7a38 ("tracing/histogram: Optimize division by constants")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk fixes from Petr Mladek:
- Try to flush backtraces from other CPUs also on the local one. This
was a regression caused by printk_safe buffers removal.
- Remove header dependency warning.
* tag 'printk-for-5.16-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
printk: Remove printk.h inclusion in percpu.h
printk: restore flushing of NMI buffers on remote CPUs after NMI backtraces
|
|
Add s390 architecture support for the ftrace direct multi sample.
See commit 5fae941b9a6f ("ftrace/samples: Add multi direct interface
test module") for further details.
Link: https://lore.kernel.org/r/20211115195614.3173346-3-hca@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
|
|
Currently it is not possible to build the ftrace direct multi example
anymore due to broken config dependencies. Fix this by adding
SAMPLE_FTRACE_DIRECT_MULTI config option.
This broke when merging s390-5.16-1 due to an incorrect merge conflict
resolution proposed by me.
Also rename SAMPLE_FTRACE_MULTI_DIRECT to SAMPLE_FTRACE_DIRECT_MULTI
so it matches the module name.
Fixes: 0b707e572a19 ("Merge tag 's390-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux")
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20211115195614.3173346-2-hca@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
|
|
My borntraeger@de.ibm.com email is just a forwarder to the
linux.ibm.com address. Let us remove the extra hop to avoid
a potential source of errors.
While at it, add the relevant email addresses to mailmap.
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Link: https://lore.kernel.org/r/20211116135803.119489-2-borntraeger@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
|
|
unreferenced object 0x38000195000 (size 4096):
comm "kexec", pid 8548, jiffies 4294953647 (age 32443.270s)
hex dump (first 32 bytes):
00 00 00 c8 20 00 00 00 00 00 00 c0 02 80 00 00 .... ...........
40 40 40 40 40 40 40 40 00 00 00 00 00 00 00 00 @@@@@@@@........
backtrace:
[<0000000011a2f199>] __vmalloc_node_range+0xc0/0x140
[<0000000081fa2752>] vzalloc+0x5a/0x70
[<0000000063a4c92d>] ipl_report_finish+0x2c/0x180
[<00000000553304da>] kexec_file_add_ipl_report+0xf4/0x150
[<00000000862d033f>] kexec_file_add_components+0x124/0x160
[<000000000d2717bb>] arch_kexec_kernel_image_load+0x62/0x90
[<000000002e0373b6>] kimage_file_alloc_init+0x1aa/0x2e0
[<0000000060f2d14f>] __do_sys_kexec_file_load+0x17c/0x2c0
[<000000008c86fe5a>] __s390x_sys_kexec_file_load+0x40/0x50
[<000000001fdb9dac>] __do_syscall+0x1bc/0x1f0
[<000000003ee4258d>] system_call+0x78/0xa0
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Philipp Rudo <prudo@redhat.com>
Fixes: 99feaa717e55 ("s390/kexec_file: Create ipl report and pass to next kernel")
Cc: <stable@vger.kernel.org> # v5.2: 20c76e242e70: s390/kexec: fix return code handling
Cc: <stable@vger.kernel.org> # v5.2
Link: https://lore.kernel.org/r/20211116033101.GD21646@MiWiFi-R3L-srv
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
|
|
kexec_file_add_ipl_report ignores that ipl_report_finish may fail and
can return an error pointer instead of a valid pointer.
Fix this and simplify by returning NULL in case of an error and let
the only caller handle this case.
Fixes: 99feaa717e55 ("s390/kexec_file: Create ipl report and pass to next kernel")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
|
