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最近遇到：BUG: soft lockup detected on CPU ＃0 问题？

时间：2007-09-19

来源：互联网

这个问题不少人在问，却没有答案，再次提出和大家讨论。
linux 2.6.18内核。

最近遇到：BUG: soft lockup detected on CPU ＃0 问题？

作者: wchtalk 发布时间: 2007-09-19

我也遇到过，你提供的信息太少了，做什么操作了？

作者: yikaikai 发布时间: 2007-09-19

2.6.18内核，我系统调用阻塞在内核的一个队列上，然后，CTL+C，中断等待，结果就出现BUG: soft lockup detected on CPU ＃0。

作者: wchtalk 发布时间: 2007-09-19

还是没有答案？我的系统也出现同样问题，下面是Messages日志信息! 有人说是网卡驱动问题，系统是RHEL5 2.6.18-8.el5xen #1 SMP Dell 2950 服务器

Nov 29 15:23:40 shdb kernel: BUG: soft lockup detected on CPU#3!
Nov 29 15:23:40 shdb kernel: [<c043ea67>] softlockup_tick+0x98/0xa6
Nov 29 15:23:40 shdb kernel: [<c0408b7d>] timer_interrupt+0x504/0x557
Nov 29 15:23:40 shdb kernel: [<c043ec9b>] handle_IRQ_event+0x27/0x51
Nov 29 15:23:40 shdb kernel: [<c043ed58>] __do_IRQ+0x93/0xe8
Nov 29 15:23:40 shdb kernel: [<c040672b>] do_IRQ+0x93/0xae
Nov 29 15:23:40 shdb kernel: [<c053a045>] evtchn_do_upcall+0x64/0x9b
Nov 29 15:23:40 shdb kernel: [<c0404ec5>] hypervisor_callback+0x3d/0x48
Nov 29 15:23:40 shdb kernel: [<c0407fd1>] raw_safe_halt+0x8c/0xaf
Nov 29 15:23:40 shdb kernel: [<c0402bca>] xen_idle+0x22/0x2e
Nov 29 15:23:40 shdb kernel: [<c0402ce9>] cpu_idle+0x91/0xab
Nov 29 15:23:40 shdb kernel: =======================
Nov 29 15:24:59 shdb kernel: BUG: soft lockup detected on CPU#3!
Nov 29 15:24:59 shdb kernel: [<c043ea67>] softlockup_tick+0x98/0xa6
Nov 29 15:24:59 shdb kernel: [<c0408b7d>] timer_interrupt+0x504/0x557
Nov 29 15:24:59 shdb kernel: [<c043ec9b>] handle_IRQ_event+0x27/0x51
Nov 29 15:24:59 shdb kernel: [<c043ed58>] __do_IRQ+0x93/0xe8
Nov 29 15:24:59 shdb kernel: [<c040672b>] do_IRQ+0x93/0xae
Nov 29 15:24:59 shdb kernel: [<c053a045>] evtchn_do_upcall+0x64/0x9b
Nov 29 15:24:59 shdb kernel: [<c0404ec5>] hypervisor_callback+0x3d/0x48
Nov 29 15:24:59 shdb kernel: [<c0407fd1>] raw_safe_halt+0x8c/0xaf
Nov 29 15:24:59 shdb kernel: [<c0402bca>] xen_idle+0x22/0x2e
Nov 29 15:24:59 shdb kernel: [<c0402ce9>] cpu_idle+0x91/0xab
Nov 29 15:24:59 shdb kernel: =======================

复制代码

作者: luocy2008 发布时间: 2007-11-30

QUOTE:

Nov 29 15:23:40 shdb kernel: BUG: soft lockup detected on CPU#3!

already seen this line, the simplest way is to update kernel,
it is already payed attention by many, and
RHEL5 has no rights to prevent 2.6.22+ ??

作者: sisi8408 发布时间: 2007-12-01

QUOTE:

原帖由 wchtalk 于 2007-9-19 17:08 发表
这个问题不少人在问，却没有答案，再次提出和大家讨论。
linux 2.6.18内核。

最近遇到：BUG: soft lockup detected on CPU ＃0 问题？

请问大家有解决此问题的吗？
我也遇到此类问题，方便联系我email:[email protected]
谢谢赐教！

作者: skywh_2001 发布时间: 2008-03-30

QUOTE:

顶以下我的同样此类问题好像是调整了内核参数后会出现
Linux www.abc.com 2.6.18-53.el5xen #1 SMP Wed Oct 10 17:06:12 EDT 2007 i686 i686 i386 GNU/Linux

QUOTE:

BUG: soft lockup detected on CPU#6!
[<c0441824>] softlockup_tick+0x96/0xa4
[<c04092a9>] timer_interrupt+0x504/0x557
[<c0441a57>] handle_IRQ_event+0x27/0x51
[<c0441b14>] __do_IRQ+0x93/0xe8
[<c0406d9b>] do_IRQ+0x93/0xae
[<c0541661>] evtchn_do_upcall+0x64/0x9b
[<c0405515>] hypervisor_callback+0x3d/0x48
[<c04084c3>] raw_safe_halt+0x8c/0xaf
[<c040321a>] xen_idle+0x22/0x2e
[<c0403339>] cpu_idle+0x91/0xab
=======================
BUG: soft lockup detected on CPU#6!
[<c0441824>] softlockup_tick+0x96/0xa4
[<c04092a9>] timer_interrupt+0x504/0x557
[<c0441a57>] handle_IRQ_event+0x27/0x51
[<c0441b14>] __do_IRQ+0x93/0xe8
[<c0406d9b>] do_IRQ+0x93/0xae
[<c0541661>] evtchn_do_upcall+0x64/0x9b
[<c0405515>] hypervisor_callback+0x3d/0x48
[<c04084c3>] raw_safe_halt+0x8c/0xaf
[<c040321a>] xen_idle+0x22/0x2e
[<c0403339>] cpu_idle+0x91/0xab
=======================
BUG: soft lockup detected on CPU#6!
[<c0441824>] softlockup_tick+0x96/0xa4
[<c04092a9>] timer_interrupt+0x504/0x557
[<c0441a57>] handle_IRQ_event+0x27/0x51
[<c0441b14>] __do_IRQ+0x93/0xe8
[<c0406d9b>] do_IRQ+0x93/0xae
[<c0541661>] evtchn_do_upcall+0x64/0x9b
[<c0405515>] hypervisor_callback+0x3d/0x48
[<c04084c3>] raw_safe_halt+0x8c/0xaf
[<c040321a>] xen_idle+0x22/0x2e
[<c0403339>] cpu_idle+0x91/0xab
=======================
BUG: soft lockup detected on CPU#6!
[<c0441824>] softlockup_tick+0x96/0xa4
[<c04092a9>] timer_interrupt+0x504/0x557
[<c0441a57>] handle_IRQ_event+0x27/0x51
[<c0441b14>] __do_IRQ+0x93/0xe8
[<c0406d9b>] do_IRQ+0x93/0xae
[<c0541661>] evtchn_do_upcall+0x64/0x9b
[<c0405515>] hypervisor_callback+0x3d/0x48
[<c04084c3>] raw_safe_halt+0x8c/0xaf
[<c040321a>] xen_idle+0x22/0x2e
[<c0403339>] cpu_idle+0x91/0xab
=======================
BUG: soft lockup detected on CPU#6!
[<c0441824>] softlockup_tick+0x96/0xa4
[<c04092a9>] timer_interrupt+0x504/0x557
[<c0441a57>] handle_IRQ_event+0x27/0x51
[<c0441b14>] __do_IRQ+0x93/0xe8
[<c0406d9b>] do_IRQ+0x93/0xae
[<c0541661>] evtchn_do_upcall+0x64/0x9b
[<c0405515>] hypervisor_callback+0x3d/0x48
[<c04084c3>] raw_safe_halt+0x8c/0xaf
[<c040321a>] xen_idle+0x22/0x2e
[<c0403339>] cpu_idle+0x91/0xab
=======================

[ 本帖最后由 xuledw 于 2008-4-25 10:53 编辑 ]

作者: xuledw 发布时间: 2008-04-25

QUOTE:

原帖由 xuledw 于 2008-4-25 10:52 发表

顶以下我的同样此类问题好像是调整了内核参数后会出现
Linux www.abc.com 2.6.18-53.el5xen #1 SMP Wed Oct 10 17:06:12 EDT 2007 i686 i686 i386 GNU/Linux

在使用Xen,版本号？dom0,domU？出现这种问题可能是dom0/U的bug,
个人从dump中推测直接原因是在raw_safe_halt()中使domian block的时间过长,并且没有事件到达导致的soft lockup
你可以看一下xen-devel或者直接搜索http://bugzilla.xensource.com/bugzilla/index.cgi看看有什么解决方法
有精力可以研究一下代码并提交一个patch