Ryo Takakura bcc954c6ca printk/panic: Allow cpu backtraces to be written into ringbuffer during panic ... commit 779dbc2e78 ("printk: Avoid non-panic CPUs writing to ringbuffer") disabled non-panic CPUs to further write messages to ringbuffer after panicked. Since the commit, non-panicked CPU's are not allowed to write to ring buffer after panicked and CPU backtrace which is triggered after panicked to sample non-panicked CPUs' backtrace no longer serves its function as it has nothing to print. Fix the issue by allowing non-panicked CPUs to write into ringbuffer while CPU backtrace is in flight. Fixes: 779dbc2e78 ("printk: Avoid non-panic CPUs writing to ringbuffer") Signed-off-by: Ryo Takakura <takakura@valinux.co.jp> Reviewed-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20240812072703.339690-1-takakura@valinux.co.jp Signed-off-by: Petr Mladek <pmladek@suse.com>		2024-08-13 14:16:22 +02:00
..
braille.c	printk: Replace strncmp() with str_has_prefix()	2019-08-16 09:54:08 +02:00
braille.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
console_cmdline.h	printk: Add match_devname_and_update_preferred_console()	2024-07-04 15:41:44 +02:00
index.c	kernel/printk/index.c: fix memory leak with using debugfs_lookup()	2023-02-03 10:42:02 +01:00
internal.h	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00
Makefile	Revert "printk: Save console options for add_preferred_console_match()"	2024-06-25 07:58:10 +02:00
nbcon.c	printk: nbcon: Relocate 32bit seq macros	2024-02-07 17:23:17 +01:00
printk_ringbuffer.c	printk: ringbuffer: Skip non-finalized records in panic	2024-02-07 17:23:18 +01:00
printk_ringbuffer.h	printk: Wait for all reserved records with pr_flush()	2024-02-07 17:23:18 +01:00
printk_safe.c	printk: Consolidate console deferred printing	2023-07-20 13:06:22 +02:00
printk.c	printk/panic: Allow cpu backtraces to be written into ringbuffer during panic	2024-08-13 14:16:22 +02:00
sysctl.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00