Changes in sysfs-kernel-softlockup_count

f088104d837a991c65e51fa30bb4196169b3244d - Merge drm/drm-next into drm-intel-gt-next

Tue, 16 Sep 2025 12:53:20 +0200

Merge drm/drm-next into drm-intel-gt-nextBackmerge in order to get the commit: 048832a3f400 ("drm/i915: Refactor shmem_pwrite() to use kiocb and write_iter")To drm-intel-gt-next as there are followup fixes to be applied.Signed-off-by: Joonas Lahtinen List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

ab93e0dd72c37d378dd936f031ffb83ff2bd87ce - Merge branch 'next' into for-linus

Wed, 06 Aug 2025 19:08:54 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.17 merge window. List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

a7bee4e7f78089c101be2ad51f4b5ec64782053e - Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next

Mon, 04 Aug 2025 08:28:48 +0200

Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into nextMerge an immutable branch between MFD, GPIO, Input and PWM to resolveconflicts for the merge window pull request. List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

74f1af95820fc2ee580a775a3a17c416db30b38c - Merge remote-tracking branch 'drm/drm-next' into msm-next

Sun, 29 Jun 2025 04:54:49 +0200

Merge remote-tracking branch 'drm/drm-next' into msm-nextBack-merge drm-next to (indirectly) get arm-smmu updates for makingstall-on-fault more reliable.Signed-off-by: Rob Clark List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

c598d5eb9fb331ba17bc9ad67ae9a2231ca5aca5 - Merge drm/drm-next into drm-misc-next

Wed, 11 Jun 2025 09:01:34 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to forward to v6.16-rc1Signed-off-by: Thomas Zimmermann List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

86e2d052c2320bf12571a5d96b16c2745e1cfc5e - Merge drm/drm-next into drm-xe-next

Mon, 09 Jun 2025 18:26:55 +0200

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.16Signed-off-by: Thomas Hellström List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

34c55367af96f62e89221444f04487440ebc6487 - Merge drm/drm-next into drm-intel-next

Mon, 09 Jun 2025 11:40:46 +0200

Merge drm/drm-next into drm-intel-nextSync to v6.16-rc1, among other things to get the fixed size GENMASK_U*()and BIT_U*() macros.Signed-off-by: Jani Nikula List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

7d4e49a77d9930c69751b9192448fda6ff9100f1 - Merge tag 'mm-nonmm-stable-2025-05-31-15-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Sun, 01 Jun 2025 04:12:53 +0200

Merge tag 'mm-nonmm-stable-2025-05-31-15-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmPull non-MM updates from Andrew Morton: - "hung_task: extend blocking task stacktrace dump to semaphore" from Lance Yang enhances the hung task detector. The detector presently dumps the blocking tasks's stack when it is blocked on a mutex. Lance's series extends this to semaphores - "nilfs2: improve sanity checks in dirty state propagation" from Wentao Liang addresses a couple of minor flaws in nilfs2 - "scripts/gdb: Fixes related to lx_per_cpu()" from Illia Ostapyshyn fixes a couple of issues in the gdb scripts - "Support kdump with LUKS encryption by reusing LUKS volume keys" from Coiby Xu addresses a usability problem with kdump. When the dump device is LUKS-encrypted, the kdump kernel may not have the keys to the encrypted filesystem. A full writeup of this is in the series [0/N] cover letter - "sysfs: add counters for lockups and stalls" from Max Kellermann adds /sys/kernel/hardlockup_count and /sys/kernel/hardlockup_count and /sys/kernel/rcu_stall_count - "fork: Page operation cleanups in the fork code" from Pasha Tatashin implements a number of code cleanups in fork.c - "scripts/gdb/symbols: determine KASLR offset on s390 during early boot" from Ilya Leoshkevich fixes some s390 issues in the gdb scripts* tag 'mm-nonmm-stable-2025-05-31-15-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (67 commits) llist: make llist_add_batch() a static inline delayacct: remove redundant code and adjust indentation squashfs: add optional full compressed block caching crash_dump, nvme: select CONFIGFS_FS as built-in scripts/gdb/symbols: determine KASLR offset on s390 during early boot scripts/gdb/symbols: factor out pagination_off() scripts/gdb/symbols: factor out get_vmlinux() kernel/panic.c: format kernel-doc comments mailmap: update and consolidate Casey Connolly's name and email nilfs2: remove wbc->for_reclaim handling fork: define a local GFP_VMAP_STACK fork: check charging success before zeroing stack fork: clean-up naming of vm_stack/vm_struct variables in vmap stacks code fork: clean-up ifdef logic around stack allocation kernel/rcu/tree_stall: add /sys/kernel/rcu_stall_count kernel/watchdog: add /sys/kernel/{hard,soft}lockup_count x86/crash: make the page that stores the dm crypt keys inaccessible x86/crash: pass dm crypt keys to kdump kernel Revert "x86/mm: Remove unused __set_memory_prot()" crash_dump: retrieve dm crypt keys in kdump kernel ... List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count

aaf05e96e93cb9c8fc8d35fc4525715530397655 - kernel/watchdog: add /sys/kernel/{hard,soft}lockup_count

Sun, 04 May 2025 20:08:30 +0200

kernel/watchdog: add /sys/kernel/{hard,soft}lockup_countPatch series "sysfs: add counters for lockups and stalls", v2.Commits 9db89b411170 ("exit: Expose "oops_count" to sysfs") and8b05aa263361 ("panic: Expose "warn_count" to sysfs") added counters foroopses and warnings to sysfs, and these two patches do the same forhard/soft lockups and RCU stalls.All of these counters are useful for monitoring tools to detect whetherthe machine is healthy. If the kernel has experienced a lockup or astall, it's probably due to a kernel bug, and I'd like to detect thatquickly and easily. There is currently no way to detect that, other thanparsing dmesg. Or observing indirect effects: such as certain tasks notresponding, but then I need to observe all tasks, and it may take a whileuntil these effects become visible/measurable. I'd rather be able todetect the primary cause more quickly, possibly before everything fallsapart.This patch (of 2):There is /proc/sys/kernel/hung_task_detect_count, /sys/kernel/warn_countand /sys/kernel/oops_count but there is no userspace-accessible counterfor hard/soft lockups. Having this is useful for monitoring tools.Link: https://lkml.kernel.org/r/20250504180831.4190860-1-max.kellermann@ionos.comLink: https://lkml.kernel.org/r/20250504180831.4190860-2-max.kellermann@ionos.comSigned-off-by: Max Kellermann Cc:Cc: Core Minyard Cc: Doug Anderson Cc: Joel Granados Cc: Song Liu Cc: Kees Cook Signed-off-by: Andrew Morton List of files: /linux/Documentation/ABI/testing/sysfs-kernel-softlockup_count