http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1164
Summary: Dom0 "BUG: soft lockup detected on CPU#0!", (ntpd?)
Product: Xen
Version: 3.0.3
Platform: x86
OS/Version: Linux-2.6
Status: NEW
Severity: normal
Priority: P2
Component: Hypervisor
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: jason@xxxxxxxxx
I am trying to diagnose why this Xen box keeps crashing every 2-3 days. It is
on Centos5 with the latest Xen and all updates from the repository.
I'm getting these in /var/log/messages a few minutes before some ntpd messages
(see log below).
Any ideas?
Feb 4 13:38:02 gx3 kernel: BUG: soft lockup detected on CPU#0!
Feb 4 13:38:02 gx3 kernel: [<c04417f4>] softlockup_tick+0x96/0xa4
Feb 4 13:38:02 gx3 kernel: [<c04092a9>] timer_interrupt+0x504/0x557
Feb 4 13:38:02 gx3 kernel: [<c0441a27>] handle_IRQ_event+0x27/0x51
Feb 4 13:38:02 gx3 kernel: [<c0441ae4>] __do_IRQ+0x93/0xe8
Feb 4 13:38:02 gx3 kernel: [<c0406d9b>] do_IRQ+0x93/0xae
Feb 4 13:38:02 gx3 kernel: [<c0541681>] evtchn_do_upcall+0x64/0x9b
Feb 4 13:38:02 gx3 kernel: [<c0405515>] hypervisor_callback+0x3d/0x48
Feb 4 13:38:02 gx3 kernel: [<c04084c3>] raw_safe_halt+0x8c/0xaf
Feb 4 13:38:02 gx3 kernel: [<c040321a>] xen_idle+0x22/0x2e
Feb 4 13:38:02 gx3 kernel: [<c0403339>] cpu_idle+0x91/0xab
Feb 4 13:38:02 gx3 kernel: [<c06d99f9>] start_kernel+0x381/0x388
Feb 4 13:38:02 gx3 kernel: =======================
Feb 4 13:38:13 gx3 kernel: BUG: soft lockup detected on CPU#0!
Feb 4 13:38:13 gx3 kernel: [<c04417f4>] softlockup_tick+0x96/0xa4
Feb 4 13:38:13 gx3 kernel: [<c04092a9>] timer_interrupt+0x504/0x557
Feb 4 13:38:13 gx3 kernel: [<c0441a27>] handle_IRQ_event+0x27/0x51
Feb 4 13:38:13 gx3 kernel: [<c0441ae4>] __do_IRQ+0x93/0xe8
Feb 4 13:38:13 gx3 kernel: [<c0406d9b>] do_IRQ+0x93/0xae
Feb 4 13:38:13 gx3 kernel: [<c0541681>] evtchn_do_upcall+0x64/0x9b
Feb 4 13:38:13 gx3 kernel: [<c0405515>] hypervisor_callback+0x3d/0x48
Feb 4 13:38:13 gx3 kernel: [<c04084c3>] raw_safe_halt+0x8c/0xaf
Feb 4 13:38:13 gx3 kernel: [<c040321a>] xen_idle+0x22/0x2e
Feb 4 13:38:13 gx3 kernel: [<c0403339>] cpu_idle+0x91/0xab
Feb 4 13:38:13 gx3 kernel: [<c06d99f9>] start_kernel+0x381/0x388
Feb 4 13:38:13 gx3 kernel: =======================
Feb 4 13:38:39 gx3 ntpd[2741]: synchronized to 208.75.88.4, stratum 2
Feb 4 13:39:47 gx3 ntpd[2741]: synchronized to 216.14.98.234, stratum 3
Feb 4 13:41:51 gx3 ntpd[2741]: synchronized to LOCAL(0), stratum 10
Feb 4 13:55:35 gx3 ntpd[2741]: synchronized to 138.23.180.126, stratum 2
Feb 4 14:29:54 gx3 ntpd[2741]: time reset +11.420503 s
Feb 4 14:33:40 gx3 ntpd[2741]: synchronized to LOCAL(0), stratum 10
Feb 4 14:34:43 gx3 ntpd[2741]: synchronized to 138.23.180.126, stratum 2
Feb 4 14:44:26 gx3 ntpd[2741]: synchronized to 208.75.88.4, stratum 2
Feb 4 14:53:34 gx3 ntpd[2741]: synchronized to 138.23.180.126, stratum 2
Feb 4 15:39:13 gx3 ntpd[2741]: synchronized to 208.75.88.4, stratum 2
Feb 4 15:47:51 gx3 ntpd[2741]: synchronized to 138.23.180.126, stratum 2
Jan 29 09:51:47 gx3 kernel: BUG: soft lockup detected on CPU#0!
Jan 29 09:51:47 gx3 kernel: [<c04417f4>] softlockup_tick+0x96/0xa4
Jan 29 09:51:47 gx3 kernel: [<c04092a9>] timer_interrupt+0x504/0x557
Jan 29 09:51:47 gx3 kernel: [<c0441a27>] handle_IRQ_event+0x27/0x51
Jan 29 09:51:47 gx3 kernel: [<c0441ae4>] __do_IRQ+0x93/0xe8
Jan 29 09:51:47 gx3 kernel: [<c0406d9b>] do_IRQ+0x93/0xae
Jan 29 09:51:47 gx3 kernel: [<c0541681>] evtchn_do_upcall+0x64/0x9b
Jan 29 09:51:47 gx3 kernel: [<c0405515>] hypervisor_callback+0x3d/0x48
Jan 29 09:51:47 gx3 kernel: [<c04084c3>] raw_safe_halt+0x8c/0xaf
Jan 29 09:51:47 gx3 kernel: [<c040321a>] xen_idle+0x22/0x2e
Jan 29 09:51:47 gx3 kernel: [<c0403339>] cpu_idle+0x91/0xab
Jan 29 09:51:47 gx3 kernel: [<c06d99f9>] start_kernel+0x381/0x388
Jan 29 09:51:47 gx3 kernel: =======================
Jan 29 09:52:01 gx3 kernel: BUG: soft lockup detected on CPU#0!
Jan 29 09:52:01 gx3 kernel: [<c04417f4>] softlockup_tick+0x96/0xa4
Jan 29 09:52:01 gx3 kernel: [<c04092a9>] timer_interrupt+0x504/0x557
Jan 29 09:52:01 gx3 kernel: [<c0441a27>] handle_IRQ_event+0x27/0x51
Jan 29 09:52:01 gx3 kernel: [<c0441ae4>] __do_IRQ+0x93/0xe8
Jan 29 09:52:01 gx3 kernel: [<c0406d9b>] do_IRQ+0x93/0xae
Jan 29 09:52:01 gx3 kernel: [<c0541681>] evtchn_do_upcall+0x64/0x9b
Jan 29 09:52:01 gx3 kernel: [<c0405515>] hypervisor_callback+0x3d/0x48
Jan 29 09:52:01 gx3 kernel: [<c04084c3>] raw_safe_halt+0x8c/0xaf
Jan 29 09:52:01 gx3 kernel: [<c040321a>] xen_idle+0x22/0x2e
Jan 29 09:52:01 gx3 kernel: [<c0403339>] cpu_idle+0x91/0xab
Jan 29 09:52:01 gx3 kernel: [<c06d99f9>] start_kernel+0x381/0x388
Jan 29 09:52:01 gx3 kernel: =======================
Jan 29 09:55:34 gx3 ntpd[2736]: synchronized to LOCAL(0), stratum 10
Jan 29 10:12:28 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
Jan 29 10:29:39 gx3 ntpd[2736]: time reset +18.071313 s
Jan 29 10:33:28 gx3 ntpd[2736]: synchronized to 216.93.242.10, stratum 2
Jan 29 10:37:10 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
Jan 29 12:37:33 gx3 ntpd[2736]: synchronized to LOCAL(0), stratum 10
Jan 29 12:41:28 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
Jan 29 13:19:52 gx3 ntpd[2736]: time reset +0.384780 s
Jan 29 13:23:23 gx3 ntpd[2736]: synchronized to LOCAL(0), stratum 10
Jan 29 13:24:27 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
Jan 29 13:38:55 gx3 ntpd[2736]: synchronized to LOCAL(0), stratum 10
Jan 29 13:56:33 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
Jan 29 14:21:21 gx3 ntpd[2736]: synchronized to LOCAL(0), stratum 10
Jan 29 14:21:31 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
Jan 29 14:55:45 gx3 ntpd[2736]: time reset +3.240973 s
Jan 29 14:59:12 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
Jan 29 19:57:54 gx3 ntpd[2736]: time reset +0.725048 s
Jan 29 20:01:14 gx3 ntpd[2736]: synchronized to 128.10.19.24, stratum 1
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