using kdb on Red Hat/SGI linux-2.4.18-18SGI_XFS_1.2pre5
Foris, Jim (MED)
foris at mr.mr.med.ge.com
Fri Feb 7 07:37:59 PST 2003
Keith Owens wrote:
> On Thu, 06 Feb 2003 17:22:25 -0600,
> "Foris, Jim (MED)" <foris at mr.mr.med.ge.com> wrote:
>
>>Keith Owens wrote:
>>
>>>Use the nmi watchdog, boot with nmi_watchdog=1.
>>
>>Did that... made no difference.
>>
>>We think it is because CPU0 handles all NMIs.... so if it dies,
>>so does the NMI watchdog.
>
>
> NMI should be broadcast. Before the system hangs, cat /proc/interrupts.
> The NMI count on each cpu must be non-zero and increasing continuously
> if the nmi watchdog is working.
You are right; interrupts are being shared now. (see attached interrupts.txt).
>
>
>>[1]kdb> bt
>>ESP EIP Function (args)
>>0xc46cde28 0xc01ed880 <unknown>+0xc01ed880
>> kernel <unknown> 0x0 0x0 0x0
>>0xc46cde2c 0xc46cdde0 <unknown>+0xc46cdde0
>> kernel <unknown> 0x0 0x0 0x0
>
>
> That is wierd. grep kallsyms System.map and insmod -nm some_module_name.
See attached grep.txt and insmod.txt for results.
>
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