Messages in this thread | | | From | John Ogness <> | Subject | Re: [PATCH 5.10-rt] printk: fix suppressed message print when reboot/panic | Date | Mon, 21 Mar 2022 10:36:55 +0106 |
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On 2022-03-21, Schspa Shi <schspa@gmail.com> wrote: > Update printk_seq for suppressed message. > > Affects 5.9-rt and 5.10-rt > > When message is suppressed, printk_seq should be updated, otherwise > this message will be printed when reboot. This problem was introduced > in commit 3edc0c85d154 ("printk: Rebase on top of new ring buffer"). > > Signed-off-by: Schspa Shi <schspa@gmail.com>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Nice catch. Thanks.
5.15-rt also has this issue, although the fix is slightly different. For 5.15-rt, writing to con->printk_seq (via latched_seq_write()) requires the console locked. Would you like to post a patch for 5.15-rt as well, or would you like me to do it?
5.16 and beyond does not have this issue.
John Ogness
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