Re: How to online remove an error scsi disk from the system?

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On Fri, Feb 1, 2013 at 2:13 PM, Tao Ma <tm@xxxxxx> wrote:
> Hi All,
>         In our product system, we have several sata disks attached to one
> machine. So when one of the disk fails, the jbd2(yes, we use ext4) will
> hang forever and we will get something in /var/log/messages like below.
> It seems to me that the io sent to the scsi layer is never returned back
> with -EIO which is a little bit surprised for me(It should be a timeout
> somewhere, right?). We have tried echo "offline" >
> /sys/block/sdl/device/state, but it doesn't work. So is there any way
> for us to let the scsi device returns all the io requests back with EIO
> so that all the end_io can be called accordingly? Am I missing something
> here?
>
> Thanks,
> Tao
>
>
> sd 0:0:11:0: attempting task abort! scmd(ffff88180e900580)
> sd 0:0:11:0: [sdl] CDB: Write(10): 2a 00 0d ca e0 3f 00 04 00 00
> target0:0:11: handle(0x0015), sas_address(0x500e004aaaaaaa0b), phy(11)
> target0:0:11: enclosure_logical_id(0x500e004aaaaaaa00), slot(11)
> INFO: task jbd2/sdl1-8:4629 blocked for more than 120 seconds.
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> jbd2/sdl1-8   D 0000000000000000     0  4629      2 0x00000000
>  ffff88180aa79ae0 0000000000000046 ffff88180aa79aa8 0000000000000000
>  ffff88007ce0fe40 0000000000015f40 ffff8818102c0638 ffff8818102c0080
>  ffff880a9184a100 ffff8818102c0638 0000000105006028 0000000100000000
> Call Trace:
>  [<ffffffff81236a15>] ? cpumask_next_and+0x25/0x40
>  [<ffffffff810122b6>] ? read_tsc+0x16/0x40
>  [<ffffffff81093cd9>] ? ktime_get_ts+0xa9/0xe0
>  [<ffffffff810122b6>] ? read_tsc+0x16/0x40
>  [<ffffffff81093cd9>] ? ktime_get_ts+0xa9/0xe0
>  [<ffffffff814a8a53>] io_schedule+0x73/0xc0
>  [<ffffffff811036a8>] sync_page+0x38/0x50
>  [<ffffffff814a927e>] __wait_on_bit+0x5e/0x90
>  [<ffffffff81103670>] ? sync_page+0x0/0x50
>  [<ffffffff81103845>] wait_on_page_bit+0x75/0x80
>  [<ffffffff81089320>] ? wake_bit_function+0x0/0x40
>  [<ffffffff811197c7>] ? pagevec_lookup_tag+0x27/0x40
>  [<ffffffff81118b55>] write_cache_pages+0x1d5/0x440
>  [<ffffffff811172f0>] ? __writepage+0x0/0x40
>  [<ffffffff81118de4>] generic_writepages+0x24/0x30
>  [<ffffffffa02dc719>] jbd2_journal_commit_transaction+0x3e9/0x1490 [jbd2]
>  [<ffffffff81074299>] ? try_to_del_timer_sync+0x49/0xe0
>  [<ffffffffa02e2734>] kjournald2+0xb4/0x220 [jbd2]
>  [<ffffffff810892e0>] ? autoremove_wake_function+0x0/0x40
>  [<ffffffffa02e2680>] ? kjournald2+0x0/0x220 [jbd2]
>  [<ffffffff81089166>] kthread+0x96/0xa0
>  [<ffffffff8100c08a>] child_rip+0xa/0x20
>  [<ffffffff810890d0>] ? kthread+0x0/0xa0
>  [<ffffffff8100c080>] ? child_rip+0x0/0x20
>
Can you try upstream?
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