panic_on_warn is unset inside panic(), so no need to unset it before calling panic() in ubsan_epilogue(). Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> --- lib/ubsan.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/lib/ubsan.c b/lib/ubsan.c index bdc380f..36bd75e 100644 --- a/lib/ubsan.c +++ b/lib/ubsan.c @@ -154,16 +154,8 @@ static void ubsan_epilogue(void) current->in_ubsan--; - if (panic_on_warn) { - /* - * This thread may hit another WARN() in the panic path. - * Resetting this prevents additional WARN() from panicking the - * system on this thread. Other threads are blocked by the - * panic_mutex in panic(). - */ - panic_on_warn = 0; + if (panic_on_warn) panic("panic_on_warn set ...\n"); - } } void __ubsan_handle_divrem_overflow(void *_data, void *lhs, void *rhs) -- 2.1.0