Kumar Gala <[email protected]> writes:
>>> I usually run the following twice to get the hang state:
>>>
>>> time ./trunc_test bar 100000000 &
>>> time ./trunc_test baz 100000000 &
>>>
>>> I was wondering if anyone had any suggestions on what to poke at next
>>> to try and figure out what is going on.
>>
>> Can you check /sys/block/xxx/stat or something to make sure there is
>> no outstanding IO request?
>>
>> It seems to be no response from the lower layer...
>
> Once the system locks up I dont have any ability to do anything.
Ah, doesn't sysrq also work? If sysrq work, it can use to see IO
request state with a patch.
--
OGAWA Hirofumi <[email protected]>
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