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SubjectRe: all processes waiting in TASK_UNINTERRUPTIBLE state

> said:
>> I am running in to a problem, seemingly a deadlock situation, where
>> almost all the processes end up in the TASK_UNINTERRUPTIBLE state.
>> All the process eventually stop responding, including login shell, no
>> screen updates, keyboard etc. Can ping and sysrq key works. I
>> traced the tasks through sysrq-t key. The processors are in the idle
>> state. Tasks all seem to get stuck in the __wait_on_page or
>> __lock_page.
>I've seen this under UML, Rik van Riel has seen it on a physical box, and
>suspect that they're the same problem (i.e. mine isn't a UML-specific

Can you give more details? Was there an aic7xxx scsi driver on the box?
run_task_queue(&tq_disk) should eventually unlock those pages
but they remain locked. I am trying to narrow it down to fs/buffer
code or the SCSI driver aic7xxx in my case. Thanks. /bulent

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