Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 22 Nov 2017 10:15:29 +0800 | From | Fengguang Wu <> | Subject | Re: [rbtree_test_init] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] |
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On Tue, Nov 21, 2017 at 01:59:13PM -0800, Andrew Morton wrote: >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?
Ah I just tested 0b548e33e6cb2bf and it's fine there. 0b548e33e6cb2bf is merged after e37e0ee0190 in this report, so it indicates a fixed error. Sorry for the noise!
Regards, Fengguang
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