diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/alternative.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 0747d29c8eaf..bbfbf7ad17ca 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -2119,6 +2119,16 @@ static void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries atomic_set_release(&bp_desc.refs, 1); /* + * Function tracing can enable thousands of places that need to be + * updated. This can take quite some time, and with full kernel debugging + * enabled, this could cause the softlockup watchdog to trigger. + * This function gets called every 256 entries added to be patched. + * Call cond_resched() here to make sure that other tasks can get scheduled + * while processing all the functions being patched. + */ + cond_resched(); + + /* * Corresponding read barrier in int3 notifier for making sure the * nr_entries and handler are correctly ordered wrt. patching. */ |