From: Andrew Morton <akpm@linux-foundation.org>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org, lkp@01.org
Subject: Re: [rbtree_test_init] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1]
Date: Tue, 21 Nov 2017 13:59:13 -0800 [thread overview]
Message-ID: <20171121135913.63e82d584e269e761573d6bf@linux-foundation.org> (raw)
In-Reply-To: <20171121111022.4petko2v2wnovzii@wfg-t540p.sh.intel.com>
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?
next prev parent reply other threads:[~2017-11-21 21:59 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-21 9:05 active bugs in the first week of 4.15 merge window Fengguang Wu
2017-11-21 10:04 ` [test_abba] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 10:54 ` [ata_port_detach] WARNING: CPU: 0 PID: 1 at drivers/ata/libata-core.c:6613 ata_port_detach+0x9b/0x180 Fengguang Wu
2017-11-21 11:30 ` Arnd Bergmann
2017-11-21 11:07 ` [tracer_init_tracefs] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] Fengguang Wu
2017-11-21 12:27 ` Fengguang Wu
2017-11-21 13:55 ` Thomas Gleixner
2017-11-21 11:10 ` [rbtree_test_init] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] Fengguang Wu
2017-11-21 21:59 ` Andrew Morton [this message]
2017-11-22 2:15 ` Fengguang Wu
2017-11-21 11:19 ` [rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s! Fengguang Wu
2017-11-21 11:52 ` [test_rht_init] INFO: task swapper/0:1 blocked for more than 120 seconds Fengguang Wu
2017-11-27 21:34 ` Linus Torvalds
2017-11-27 21:32 ` [rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s! Linus Torvalds
2017-11-21 11:53 ` [vga_arb_device_init] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 16:52 ` Lukas Wunner
2017-11-22 9:07 ` Daniel Vetter
2017-11-21 17:08 ` [char-misc] " Daniel Vetter
2017-11-21 12:04 ` [migration_cpu_stop] WARNING: CPU: 0 PID: 11 at kernel/sched/core.c:1187 set_task_cpu+0x257/0x6b6 Fengguang Wu
2017-11-21 13:34 ` Peter Zijlstra
2017-11-21 13:51 ` Fengguang Wu
2017-11-21 16:13 ` Paul E. McKenney
2017-11-22 12:18 ` Fengguang Wu
2017-11-21 14:01 ` Rafael J. Wysocki
2017-11-21 12:09 ` [ata_port_probe] BUG: unable to handle kernel NULL pointer dereference at 0000000000000350 Fengguang Wu
2017-11-21 12:19 ` Fengguang Wu
2017-11-21 12:54 ` Arnd Bergmann
2017-11-21 14:57 ` Tejun Heo
2017-11-21 15:30 ` Arnd Bergmann
2017-11-21 12:33 ` [serial8250_interrupt] RIP: 0010:arch_local_irq_restore+0x2/0x8 Fengguang Wu
2017-11-21 13:31 ` Fengguang Wu
2017-11-21 14:39 ` Andy Shevchenko
2017-11-21 21:14 ` Andy Shevchenko
2017-11-22 23:36 ` Fengguang Wu
2017-11-22 23:43 ` Fengguang Wu
2017-11-21 12:41 ` [e1000_shutdown] e1000 0000:00:03.0: disabling already-disabled device Fengguang Wu
2017-11-21 22:10 ` Tushar Dave
2017-11-22 23:13 ` Fengguang Wu
2017-11-27 19:31 ` Tushar Dave
2017-12-04 11:33 ` Fengguang Wu
2017-12-05 19:19 ` Tushar Dave
2017-11-21 12:50 ` [test_cycle_work] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 13:01 ` [hrtimer_active] INFO: trying to register non-static key Fengguang Wu
2017-11-22 14:37 ` [hrtimer_active ^W ata_port_wait_eh] " Thomas Gleixner
2017-11-24 12:49 ` Tejun Heo
2017-11-24 13:41 ` Fengguang Wu
[not found] ` <20171121121233.3pvkb34tci47n634@wfg-t540p.sh.intel.com>
2017-11-21 13:28 ` [RING_BUFFER_BENCHMARK] INFO: task rb_producer:73 blocked for more than 120 seconds Fengguang Wu
-- strict thread matches above, loose matches on Subject: below --
2017-11-07 4:50 [rbtree_test_init] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] Fengguang Wu
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