Discussion:
bcache errors
roma1390
2014-05-19 15:10:28 UTC
Permalink
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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Kent Overstreet
2014-05-19 15:29:44 UTC
Permalink
I'll be sending the fix out in the next pull request, in the next day or so.
Post by roma1390
Hello
tryed bcache on 3.13-1-amd64 (from debian)
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
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
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: [670991.228262] [<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: [671111.112183] [<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: [671230.996118] [<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: [671350.880069] [<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
roma1390
2014-05-26 14:59:13 UTC
Permalink
Hello,

can You resend it, I still waiting, and possible missed Your delivery.

Thank You.
Post by Kent Overstreet
I'll be sending the fix out in the next pull request, in the next day or so.
Post by roma1390
Hello
tryed bcache on 3.13-1-amd64 (from debian)
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
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
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: [670991.228262] [<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: [671111.112183] [<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: [671230.996118] [<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: [671350.880069] [<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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