Messages in this thread | | | Date | Tue, 21 Nov 2017 13:59:13 -0800 | From | Andrew Morton <> | Subject | Re: [rbtree_test_init] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] |
| |
On Tue, 21 Nov 2017 19:10:22 +0800 Fengguang Wu <fengguang.wu@intel.com> wrote:
> Hello, > > FYI this happens in mainline kernel 4.14.0-03453-ge37e0ee. > It at least dates back to v4.1 . > > It occurs in 2 out of 2 boots. > > [ 140.043368] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] > ... > [ 140.044140] Call Trace: > [ 140.044140] __asan_loadN+0x19/0x21 > [ 140.044140] ftrace_likely_update+0x32/0xc3: > ftrace_likely_update at kernel/trace/trace_branch.c:209 > [ 140.044140] ? augment_recompute+0x14b/0x14b: > augment_callbacks_rotate at lib/rbtree_test.c:97 > [ 140.044140] __rb_insert_augmented+0x8d/0x639: > __rb_insert at lib/rbtree.c:110 > (inlined by) __rb_insert_augmented at lib/rbtree.c:495 > [ 140.044140] rbtree_test_init+0xbfb/0x1407: > rb_insert_augmented_cached at include/linux/rbtree_augmented.h:70 > (inlined by) insert_augmented_cached at lib/rbtree_test.c:148 > (inlined by) rbtree_test_init at lib/rbtree_test.c:371 > [ 140.044140] ? glob_init+0x23f/0x23f: > rbtree_test_init at lib/rbtree_test.c:245
Does that kernel include 0b548e33e6cb2bf ("lib/rbtree-test: lower default params")? If so, perhaps some cond_resched() sprinkling is needed?
| |