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SubjectRe: Soft lockup (and reboot): IPMI
On Mon, Aug 14, 2006 at 06:14:46PM +0200, Philipp Matthias Hahn wrote:
> Hello!
>
> While playing with "openipmigui", the server just rebooted with the
> following last message:
>
> BUG: soft lockup detected on CPU#0!
> <c0103416> show_trace+0xd/0xf
> <c01034e5> dump_stack+0x15/0x17
> <c01382b0> softlockup_tick+0x9d/0xae
> <c012190a> run_local_timers+0x12/0x14
> <c0121748> update_process_times+0x3c/0x61
> <c010e1d9> smp_apic_timer_interrupt+0x57/0x5f
> <c010307c> apic_timer_interrupt+0x1c/0x24
> <f8aa8783> ipmi_thread+0x43/0x71 [ipmi_si]
> <c0129e62> kthread+0x78/0xa0
> <c0100e31> kernel_thread_helper+0x5/0xb
>
> Any idea on what went wrong?

What kernel please? If 2.6.17 or higher, this is new. If < 2.6.17,
this is most likely due to the udelay(1) call in ipmi_thread() which
in 2.6.17 was replaced with a schedule().

Thanks,
Matt

--
Matt Domsch
Software Architect
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com
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