"Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu XX" due to tasklist_lock starvation.
Issue
- System crashed with following panic message
Watchdog detected hard LOCKUP on cpu 13
..
Pid: 8191, comm: process Tainted: G W -- ------------ 2.6.32-642.3.1.el6.x86_64 #1
Call Trace:
<NMI> [<ffffffff810f29c1>] ? watchdog_overflow_callback+0xf1/0x110
[<ffffffff8112b7a7>] ? __perf_event_overflow+0xa7/0x240
[<ffffffff8101dee6>] ? x86_perf_event_set_period+0xf6/0x180
[<ffffffff8112be04>] ? perf_event_overflow+0x14/0x20
[<ffffffff810252bc>] ? intel_pmu_handle_irq+0x21c/0x480
[<ffffffff8154bfc9>] ? perf_event_nmi_handler+0x39/0xb0
[<ffffffff8154dac5>] ? notifier_call_chain+0x55/0x80
[<ffffffff8154db2a>] ? atomic_notifier_call_chain+0x1a/0x20
[<ffffffff810acc2e>] ? notify_die+0x2e/0x30
[<ffffffff8154b743>] ? do_nmi+0x1c3/0x350
[<ffffffff8154b003>] ? nmi+0x83/0x90
[<ffffffff812a6ca9>] ? __write_lock_failed+0x9/0x20
<<EOE>> [<ffffffff8154a7ee>] ? _write_lock_irq+0x1e/0x20
[<ffffffff8107abe3>] ? copy_process+0xb93/0x1520
[<ffffffff8107b6c6>] ? do_fork+0x96/0x4c0
[<ffffffff811b9fd2>] ? alloc_fd+0x92/0x160
[<ffffffff81196717>] ? fd_install+0x47/0x90
[<ffffffff8105b896>] ? sys32_clone+0x26/0x30
[<ffffffff8105b685>] ? ia32_ptregs_common+0x25/0x50
Kernel panic - not syncing: Hard LOCKUP
..
Environment
- Red Hat Enterprise Linux 6
- Kernel-2.6.32-642.3.1.el6
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.
