On Wed, Sep 29, 2021 at 09:58:23PM +0300, Alexander Popov wrote: > --- a/kernel/panic.c > +++ b/kernel/panic.c > @@ -53,6 +53,7 @@ static int pause_on_oops_flag; > static DEFINE_SPINLOCK(pause_on_oops_lock); > bool crash_kexec_post_notifiers; > int panic_on_warn __read_mostly; > +int pkill_on_warn __read_mostly; > unsigned long panic_on_taint; > bool panic_on_taint_nousertaint = false; > > @@ -610,6 +611,9 @@ void __warn(const char *file, int line, void *caller, unsigned taint, > > print_oops_end_marker(); > > + if (pkill_on_warn && system_state >= SYSTEM_RUNNING) > + do_group_exit(SIGKILL); > + Wait a sec... do_group_exit() is very much not locking-neutral. Aren't you introducing a bunch of potential deadlocks by adding that?