RE: BUG: linux-2.6.39 kernel panic issue when hot-plut disk during I/O

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>> > 2.6.39-rc4 work fine, but 2.6.39-rc5 has kernel panic.
>> 
>> Still smells like a regression.  If you run a git bisect between those
>> two versions it should be pretty straightforward to identify the
>> offending commit.  There were some interesting block/scsi changes in
>> that window:
>> 
>> Jens Axboe (5):
>>       block: kill blk_flush_plug_list() export
> >      cfq-iosched: read_lock() does not always imply rcu_read_lock()
> >      block: get rid of QUEUE_FLAG_REENTER
> >     block: remove stale kerneldoc member from __blk_run_queue()
> >      elevator: check for ELEVATOR_INSERT_SORT_MERGE in !elvpriv case too
>> 
>> Liu Yuan (1):
>>       block, blk-sysfs: Fix an err return path in blk_register_queue()
>> 
>> Tao Ma (1):
>>       block: Remove the extra check in queue_requests_store
>> 
>> Tejun Heo (1):
>>       block: don't propagate unlisted DISK_EVENTs to userland

>Or try linux 3.0-rc2 which as yet another block queue lifetime vs. hotplug
>fix (which is not yet available in a 2.6.39.y kernel).

It still kernel panic.
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