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SubjectRe: Performance of ext4
On Thu, 12 Jun 2008, Aneesh Kumar K.V wrote:

> On Thu, Jun 12, 2008 at 02:07:30PM +0000, Holger Kiehl wrote:
>> This time there is no OOPS and system is still up running without any
>> problem (except any process wanting to write something to this filesystem
>> gets stuck forever).
>>
>> What can I do to help find the problem? The system is still up with all those
>> process hanging in D-state.
>>
>
> if you can login to the system get the dmesg output after
>
> echo t > /proc/sysrq-trigger
>
Unfortunately I have not set CONFIG_MAGIC_SYSRQ. Tomorrow I will try to
reproduce this with a kernel that has CONFIG_MAGIC_SYSRQ set.

Holger



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