From f8d5faf718c9ff2c04eb8484585d4963c4111cd7 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 13 Jan 2010 20:44:26 +0100 Subject: [PATCH] [S390] clear TIF_SINGLE_STEP for new process. Clear the TIF_SINGLE_STEP bit in copy_thread. The new process did not get a PER event of its own. It is wrong deliver a SIGTRAP that was meant for the parent process. Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/process.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 5417eb57271a..b98fe8e6e507 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -217,6 +217,7 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp, p->thread.mm_segment = get_fs(); /* Don't copy debug registers */ memset(&p->thread.per_info, 0, sizeof(p->thread.per_info)); + clear_tsk_thread_flag(p, TIF_SINGLE_STEP); /* Initialize per thread user and system timer values */ ti = task_thread_info(p); ti->user_timer = 0; -- 2.30.2