printk: Drop console_sem during panic

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If another CPU is in panic, we are about to be halted. Try to gracefully
abandon the console_sem, leaving it free for the panic CPU to grab.

Suggested-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220202171821.179394-5-stephen.s.brennan@oracle.com

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Stephen Brennan 2022-02-02 09:18:21 -08:00 • committed by Petr Mladek

parent 13fb0f74d7

commit 8ebc476fd5

1 changed files with 24 additions and 1 deletions

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kernel/printk/printk.c

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