Re: bcache errors

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I'll be sending the fix out in the next pull request, in the next day or so.

On Mon, May 19, 2014 at 8:10 AM, roma1390 <roma1390@xxxxxxxxx> wrote:
> Hello
>
> tryed bcache on 3.13-1-amd64 (from debian)
>
> Steps:
>
> git clone https://github.com/g2p/bcache-tools.git
> cd bcache-tools/
> make
>
> dd if=/dev/zero of=data bs=1M count=64
> losetup -d /dev/loop0; losetup /dev/loop0 /tmp/bb/bcache-tools/data
> make-bcache -C /dev/ram0 -B /dev/ram1
> modprobe bcache
> echo /dev/ram0 > /sys/fs/bcache/register
> echo /dev/loop0 > /sys/fs/bcache/register
>
> Got:
> May 19 17:32:55 bump kernel: [670838.280487] bcache: register_bdev()
> registered backing device ram0
> May 19 17:33:02 bump kernel: [670845.209612] bcache: run_cache_set()
> invalidating existing data
> May 19 17:33:02 bump kernel: [670845.277214] bcache:
> bch_cached_dev_attach() Caching ram0 as bcache0 on set
> d01c215c-f038-4e85-9f7f-d1133f080b55
> May 19 17:33:02 bump kernel: [670845.277230] bcache: register_cache()
> registered cache device loop0
> May 19 17:35:28 bump kernel: [670991.228242] INFO: task
> bcache_writebac:6378 blocked for more than 120 seconds.
> May 19 17:35:28 bump kernel: [670991.228246]       Tainted: G
> C   3.13-1-amd64 #1
> May 19 17:35:28 bump kernel: [670991.228247] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> May 19 17:35:28 bump kernel: [670991.228248] bcache_writebac D
> ffff8804f2ab2350     0  6378      2 0x00000000
> May 19 17:35:28 bump kernel: [670991.228251]  ffff8804f2ab2010
> 0000000000000046 0000000000014280 0000000000014280
> May 19 17:35:28 bump kernel: [670991.228252]  ffff880725423fd8
> ffff8804f2ab2010 ffff8805de3bba40 ffff8807f8410000
> May 19 17:35:28 bump kernel: [670991.228254]  ffffffffa0866790
> 0000000000000000 0000000000000000 0000000000000000
> May 19 17:35:28 bump kernel: [670991.228255] Call Trace:
> May 19 17:35:28 bump kernel: [670991.228262]  [<ffffffffa0866790>] ?
> write_dirty_finish+0x210/0x210 [bcache]
> May 19 17:35:28 bump kernel: [670991.228265]  [<ffffffff8107bb2d>] ?
> kthread+0x9d/0xe0
> May 19 17:35:28 bump kernel: [670991.228266]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
> May 19 17:35:28 bump kernel: [670991.228270]  [<ffffffff814aeacc>] ?
> ret_from_fork+0x7c/0xb0
> May 19 17:35:28 bump kernel: [670991.228271]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
> May 19 17:37:28 bump kernel: [671111.112160] INFO: task
> bcache_writebac:6378 blocked for more than 120 seconds.
> May 19 17:37:28 bump kernel: [671111.112165]       Tainted: G
> C   3.13-1-amd64 #1
> May 19 17:37:28 bump kernel: [671111.112166] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> May 19 17:37:28 bump kernel: [671111.112167] bcache_writebac D
> ffff8804f2ab2350     0  6378      2 0x00000000
> May 19 17:37:28 bump kernel: [671111.112170]  ffff8804f2ab2010
> 0000000000000046 0000000000014280 0000000000014280
> May 19 17:37:28 bump kernel: [671111.112172]  ffff880725423fd8
> ffff8804f2ab2010 ffff8805de3bba40 ffff8807f8410000
> May 19 17:37:28 bump kernel: [671111.112174]  ffffffffa0866790
> 0000000000000000 0000000000000000 0000000000000000
> May 19 17:37:28 bump kernel: [671111.112175] Call Trace:
> May 19 17:37:28 bump kernel: [671111.112183]  [<ffffffffa0866790>] ?
> write_dirty_finish+0x210/0x210 [bcache]
> May 19 17:37:28 bump kernel: [671111.112186]  [<ffffffff8107bb2d>] ?
> kthread+0x9d/0xe0
> May 19 17:37:28 bump kernel: [671111.112188]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
> May 19 17:37:28 bump kernel: [671111.112191]  [<ffffffff814aeacc>] ?
> ret_from_fork+0x7c/0xb0
> May 19 17:37:28 bump kernel: [671111.112193]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
> May 19 17:39:28 bump kernel: [671230.996097] INFO: task
> bcache_writebac:6378 blocked for more than 120 seconds.
> May 19 17:39:28 bump kernel: [671230.996101]       Tainted: G
> C   3.13-1-amd64 #1
> May 19 17:39:28 bump kernel: [671230.996102] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> May 19 17:39:28 bump kernel: [671230.996103] bcache_writebac D
> ffff8804f2ab2350     0  6378      2 0x00000000
> May 19 17:39:28 bump kernel: [671230.996106]  ffff8804f2ab2010
> 0000000000000046 0000000000014280 0000000000014280
> May 19 17:39:28 bump kernel: [671230.996108]  ffff880725423fd8
> ffff8804f2ab2010 ffff8805de3bba40 ffff8807f8410000
> May 19 17:39:28 bump kernel: [671230.996109]  ffffffffa0866790
> 0000000000000000 0000000000000000 0000000000000000
> May 19 17:39:28 bump kernel: [671230.996111] Call Trace:
> May 19 17:39:28 bump kernel: [671230.996118]  [<ffffffffa0866790>] ?
> write_dirty_finish+0x210/0x210 [bcache]
> May 19 17:39:28 bump kernel: [671230.996121]  [<ffffffff8107bb2d>] ?
> kthread+0x9d/0xe0
> May 19 17:39:28 bump kernel: [671230.996123]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
> May 19 17:39:28 bump kernel: [671230.996126]  [<ffffffff814aeacc>] ?
> ret_from_fork+0x7c/0xb0
> May 19 17:39:28 bump kernel: [671230.996127]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
> May 19 17:41:28 bump kernel: [671350.880041] INFO: task
> bcache_writebac:6378 blocked for more than 120 seconds.
> May 19 17:41:28 bump kernel: [671350.880045]       Tainted: G
> C   3.13-1-amd64 #1
> May 19 17:41:28 bump kernel: [671350.880046] "echo 0 >
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> May 19 17:41:28 bump kernel: [671350.880047] bcache_writebac D
> ffff8804f2ab2350     0  6378      2 0x00000000
> May 19 17:41:28 bump kernel: [671350.880050]  ffff8804f2ab2010
> 0000000000000046 0000000000014280 0000000000014280
> May 19 17:41:28 bump kernel: [671350.880051]  ffff880725423fd8
> ffff8804f2ab2010 ffff8805de3bba40 ffff8807f8410000
> May 19 17:41:28 bump kernel: [671350.880060]  ffffffffa0866790
> 0000000000000000 0000000000000000 0000000000000000
> May 19 17:41:28 bump kernel: [671350.880062] Call Trace:
> May 19 17:41:28 bump kernel: [671350.880069]  [<ffffffffa0866790>] ?
> write_dirty_finish+0x210/0x210 [bcache]
> May 19 17:41:28 bump kernel: [671350.880073]  [<ffffffff8107bb2d>] ?
> kthread+0x9d/0xe0
> May 19 17:41:28 bump kernel: [671350.880074]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
> May 19 17:41:28 bump kernel: [671350.880078]  [<ffffffff814aeacc>] ?
> ret_from_fork+0x7c/0xb0
> May 19 17:41:28 bump kernel: [671350.880079]  [<ffffffff8107ba90>] ?
> kthread_create_on_node+0x180/0x180
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