Messages in this thread | | | Subject | Re: [syzbot? printk?] no WARN_ON() messages printed before "Kernel panic - not syncing: panic_on_warn set ..." | From | Tetsuo Handa <> | Date | Sat, 16 Mar 2019 23:53:35 +0900 |
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On 2019/03/16 23:16, Dmitry Vyukov wrote: >>> Maybe try running with "ignore_loglevel" kernel command line option added? >> >> Right, that's something I would expect 0-day and syzkaller to do. > > to double-check: enabling this won't lead to verbose/debug level of logging? >
I don't know what "verbose/debug level" means. But enabling this option causes KERN_{EMERG,ALERT,CRIT,ERR,WARNING,NOTICE,INFO,DEBUG} be printed equally.
"ignore loglevel setting (prints all kernel messages to the console)"
static bool suppress_message_printing(int level) { return (level >= console_loglevel && !ignore_loglevel); }
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