[asterisk-users] BUG: soft lockup - CPU#1 stuck for 10s! [swapper:0]

[Alex Samad]

On Sat, Aug 15, 2009 at 10:58:07PM +1000, Lee, John (Sydney) wrote:
> I have this DELL PE2950 running Asterisk 1.4.21.2 on RHEL 5 with no
> problems since Dec last year. We are using Digium TE412P to connect to

[snip]

> Pid: 0, comm: swapper
> EIP: 0060:[,C0417911.] CPU: 1
> EIP is at smp_call_function+0x99/0xc3
> EFLAGS: 00000297 Tainted: G (2.6.10-92.1.22.e15 #1)
> EAX: 00000002 EBX: 00000000 ECX: 00000001 EDX: 000000fb
> ESI: 00000003 EDI: 00000000 EBP: c0417ae0 DS: 007B ES: 007b
> CR0: 8005003b CR2: b7fec780 CR3: 324B2000 CR4: 000006d0 [<c0417ae0>]
> stop_this_cpu+0x0/0x33 [<c041794e>] smp_send_stop+0x13/0x1c [<c0425bcf>]
> panic+0x4c/0x16d [<c040da17>] intel_machine_check+0xf9/0x146

Have you installed mce - the machine check error logger to see what this
is, you might get more relevant information from there.


I have also seen this cpu stuck when my adsl goes down and i get a very
short lifed ipv6 routing looping - sucks up cpu and doesn't let it intr
which starves the other cards.

Alex

> [<c040d91e>] intel_machine_check+0x0/0x146 [<c0403ccf>]
> error_code+0x39/0x40 [<c0403ccf>] mwait_idel+0x25/0x38 [<c0522200>]
> acpi_processor_idle+0x154/0x3b4 [<c0403c90>] cpu_idle+0x9f/0xb9
> =======================
> 
> Q1. A strange thing is I could not find this error message in
> /var/log/messages or dmesg. The soft lockup error message can only be
> found on the machine itself.
> 
> Q2. Could it be kernel incompatibility problem? However, we did not ever
> change anything since it was installed.
> 
> Q3. From the error message, how do I know it is a software (kernel?) or
> hardware problem?
> 
> I would appreciate if someone could give me any suggestions.
> 
> 
> 
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