The patch titled Subject: hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix has been added to the -mm mm-nonmm-unstable branch. Its filename is hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix Date: Thu Mar 13 03:28:05 PM PDT 2025 implement debug_show_blocker() in C rather than in CPP Cc: Anna Schumaker <anna.schumaker@xxxxxxxxxx> Cc: Boqun Feng <boqun.feng@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Joel Granados <joel.granados@xxxxxxxxxx> Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx> Cc: Lance Yang <ioworker0@xxxxxxxxx> Cc: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> Cc: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Cc: Tomasz Figa <tfiga@xxxxxxxxxxxx> Cc: Waiman Long <longman@xxxxxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx> Cc: Yongliang Gao <leonylgao@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/hung_task.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/kernel/hung_task.c~hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix +++ a/kernel/hung_task.c @@ -125,7 +125,9 @@ static void debug_show_blocker(struct ta } } #else -#define debug_show_blocker(t) do {} while (0) +static inline void debug_show_blocker(struct task_struct *task) +{ +} #endif static void check_hung_task(struct task_struct *t, unsigned long timeout) _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are mm-vmscan-extract-calculated-pressure-balance-as-a-function-fix.patch mm-madvise-split-out-mmap-locking-operations-for-madvise-fix-checkpatch-fixes.patch mm-madvise-remove-redundant-mmap_lock-operations-from-process_madvise-fix.patch mm-pgtable-convert-some-architectures-to-use-tlb_remove_ptdesc-v2-fix.patch mm-hugetlb-add-hugetlb_alloc_threads-cmdline-option-fix.patch mm-filemap-use-xas_try_split-in-__filemap_add_folio-fix.patch lib-plistc-add-shortcut-for-plist_requeue-fix.patch scsi-lpfc-convert-timeouts-to-secs_to_jiffies-fix.patch signal-avoid-clearing-tif_sigpending-in-recalc_sigpending-if-unset-fix.patch hung_task-show-the-blocker-task-if-the-task-is-hung-on-mutex-fix.patch