The patch titled
Subject: panic-add-option-to-dump-blocked-tasks-in-panic_print-fix
has been added to the -mm mm-nonmm-unstable branch. Its filename is
panic-add-option-to-dump-blocked-tasks-in-panic_print-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/panic-add-option-to-dump-blocked-tasks-in-panic_print-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
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: panic-add-option-to-dump-blocked-tasks-in-panic_print-fix
Date: Sat Feb 3 04:31:14 AM PST 2024
clarify documentation a little
Cc: Feng Tang <feng.tang@xxxxxxxxx>
Cc: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Cc: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/kernel-parameters.txt | 2 +-
Documentation/admin-guide/sysctl/kernel.rst | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/Documentation/admin-guide/kernel-parameters.txt~panic-add-option-to-dump-blocked-tasks-in-panic_print-fix
+++ a/Documentation/admin-guide/kernel-parameters.txt
@@ -4182,7 +4182,7 @@
bit 4: print ftrace buffer
bit 5: print all printk messages in buffer
bit 6: print all CPUs backtrace (if available in the arch)
- bit 7: print tasks in uninterruptible (blocked) state
+ bit 7: print only tasks in uninterruptible (blocked) state
*Be aware* that this option may print a _lot_ of lines,
so there are risks of losing older messages in the log.
Use this option carefully, maybe worth to setup a
--- a/Documentation/admin-guide/sysctl/kernel.rst~panic-add-option-to-dump-blocked-tasks-in-panic_print-fix
+++ a/Documentation/admin-guide/sysctl/kernel.rst
@@ -853,7 +853,7 @@ bit 3 print locks info if ``CONFIG_LOCK
bit 4 print ftrace buffer
bit 5 print all printk messages in buffer
bit 6 print all CPUs backtrace (if available in the arch)
-bit 7 print tasks in uninterruptible (blocked) state
+bit 7 print only tasks in uninterruptible (blocked) state
===== ============================================
So for example to print tasks and memory info on panic, user can::
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
kexec-split-crashkernel-reservation-code-out-from-crash_corec-fix.patch
mm-memory_hotplug-export-mhp_supports_memmap_on_memory-fix.patch
mm-ptdump-have-ptdump_check_wx-return-bool-fix.patch
kprobes-use-synchronize_rcu_tasks_rude-in-kprobe_optimizer-fix.patch
panic-add-option-to-dump-blocked-tasks-in-panic_print-fix.patch
