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Message-ID: <1421888497.6126.36.camel@intel.com>
Date: Thu, 22 Jan 2015 09:01:37 +0800
From: Huang Ying <ying.huang@...el.com>
To: Thomas Graf <tgraf@...g.ch>
Cc: "David S. Miller" <davem@...emloft.net>,
LKML <linux-kernel@...r.kernel.org>, LKP ML <lkp@...org>
Subject: [LKP] [rhashtable] WARNING: CPU: 0 PID: 11 at
kernel/locking/mutex.c:570 mutex_lock_nested+0x425/0x570()
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 80ca8c3a84c74a87977558861bb8eef650732912 ("rhashtable: Lower/upper bucket may map to same lock while shrinking")
+--------------------------------------------------------+------------+------------+
| | df8a39defa | 80ca8c3a84 |
+--------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 240 | 20 |
| BUG:spinlock_trylock_failure_on_UP_on_CPU | 240 | |
| backtrace:rhashtable_shrink | 240 | |
| backtrace:test_rht_init | 240 | |
| backtrace:kernel_init_freeable | 240 | |
| WARNING:at_kernel/locking/mutex.c:#mutex_lock_nested() | 0 | 20 |
| PANIC:double_fault | 0 | 20 |
| RIP:device_create | 0 | 20 |
| Kernel_panic-not_syncing:Machine_halted | 0 | 20 |
| backtrace:rht_deferred_worker | 0 | 20 |
+--------------------------------------------------------+------------+------------+
[ 0.346236] ------------[ cut here ]------------
[ 0.346236] ------------[ cut here ]------------
[ 0.347000] WARNING: CPU: 0 PID: 11 at kernel/locking/mutex.c:570 mutex_lock_nested+0x425/0x570()
[ 0.347000] WARNING: CPU: 0 PID: 11 at kernel/locking/mutex.c:570 mutex_lock_nested+0x425/0x570()
[ 0.347000] DEBUG_LOCKS_WARN_ON(l->magic != l)
[ 0.347000] DEBUG_LOCKS_WARN_ON(l->magic != l)
[ 0.347000] Modules linked in:
[ 0.347000] Modules linked in:
[ 0.347000] CPU: 0 PID: 11 Comm: kworker/0:1 Not tainted 3.19.0-rc4-ge888419 #667
[ 0.347000] CPU: 0 PID: 11 Comm: kworker/0:1 Not tainted 3.19.0-rc4-ge888419 #667
[ 0.347000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.347000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.347000] Workqueue: events rht_deferred_worker
[ 0.347000] Workqueue: events rht_deferred_worker
[ 0.347000] ffff88007695fc28
[ 0.347000] ffff88007695fc28 ffff88007695fbd8 ffff88007695fbd8 ffffffff8149dd9b ffffffff8149dd9b ffff88007695fc18 ffff88007695fc18
[ 0.347000] ffffffff8109b0bc
[ 0.347000] ffffffff8109b0bc ffff88007695fc58 ffff88007695fc58 ffffffff814a32f4 ffffffff814a32f4 ffff880076883d90 ffff880076883d90
[ 0.347000] 0000000000000246
[ 0.347000] 0000000000000246 ffff88007695fca8 ffff88007695fca8 ffff8800769022a0 ffff8800769022a0 ffff88007695fc78 ffff88007695fc78
[ 0.347000] Call Trace:
[ 0.347000] Call Trace:
[ 0.347000] [<ffffffff8149dd9b>] dump_stack+0x19/0x1b
[ 0.347000] [<ffffffff8149dd9b>] dump_stack+0x19/0x1b
[ 0.347000] [<ffffffff8109b0bc>] warn_slowpath_common+0xca/0xe3
[ 0.347000] [<ffffffff8109b0bc>] warn_slowpath_common+0xca/0xe3
[ 0.347000] [<ffffffff814a32f4>] ? mutex_lock_nested+0x425/0x570
[ 0.347000] [<ffffffff814a32f4>] ? mutex_lock_nested+0x425/0x570
[ 0.347000] [<ffffffff8109b11b>] warn_slowpath_fmt+0x46/0x48
[ 0.347000] [<ffffffff8109b11b>] warn_slowpath_fmt+0x46/0x48
[ 0.347000] [<ffffffff814a32f4>] mutex_lock_nested+0x425/0x570
[ 0.347000] [<ffffffff814a32f4>] mutex_lock_nested+0x425/0x570
[ 0.347000] [<ffffffff812928a2>] rht_deferred_worker+0x23/0x94
[ 0.347000] [<ffffffff812928a2>] rht_deferred_worker+0x23/0x94
[ 0.347000] [<ffffffff810b6c3b>] process_one_work+0x361/0x558
[ 0.347000] [<ffffffff810b6c3b>] process_one_work+0x361/0x558
[ 0.347000] [<ffffffff810b7759>] worker_thread+0x496/0x5e6
[ 0.347000] [<ffffffff810b7759>] worker_thread+0x496/0x5e6
[ 0.347000] [<ffffffff810b72c3>] ? rescuer_thread+0x462/0x462
[ 0.347000] [<ffffffff810b72c3>] ? rescuer_thread+0x462/0x462
[ 0.347000] [<ffffffff810b72c3>] ? rescuer_thread+0x462/0x462
[ 0.347000] [<ffffffff810b72c3>] ? rescuer_thread+0x462/0x462
[ 0.347000] [<ffffffff810bbfad>] kthread+0x118/0x120
[ 0.347000] [<ffffffff810bbfad>] kthread+0x118/0x120
[ 0.347000] [<ffffffff810c8189>] ? local_clock+0x2b/0x34
[ 0.347000] [<ffffffff810c8189>] ? local_clock+0x2b/0x34
[ 0.347000] [<ffffffff810bbe95>] ? init_completion+0x24/0x24
[ 0.347000] [<ffffffff810bbe95>] ? init_completion+0x24/0x24
[ 0.347000] [<ffffffff814a6c3a>] ret_from_fork+0x7a/0xb0
[ 0.347000] [<ffffffff814a6c3a>] ret_from_fork+0x7a/0xb0
[ 0.347000] [<ffffffff810bbe95>] ? init_completion+0x24/0x24
[ 0.347000] [<ffffffff810bbe95>] ? init_completion+0x24/0x24
[ 0.347000] ---[ end trace e632e964ce5a24c7 ]---
[ 0.347000] ---[ end trace e632e964ce5a24c7 ]---
Thanks,
Huang, Ying
View attachment "config-3.19.0-rc3-g80ca8c3" of type "text/plain" (74919 bytes)
View attachment ".dmesg" of type "text/plain" (66937 bytes)
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