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SpComb/dmesg

Created October 10, 2014 20:26
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bcache background writeback flush blocking
Raw
dmesg
[ 2880.559577] INFO: task bcache_writebac:4708 blocked for more than 120 seconds.
[ 2880.559631] Not tainted 3.16-0.bpo.2-amd64 #1
[ 2880.559660] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2880.559712] bcache_writebac D ffff88063fc341c0 0 4708 2 0x00000000
[ 2880.559716] ffff8803331cb3f0 0000000000000046 06f81c2907b5927f ffff880330f3b5f0
[ 2880.559719] 00000000000141c0 ffff8803325cffd8 00000000000141c0 ffff880330f3b5f0
[ 2880.559722] 0000000000000000 ffff880332d11280 ffff880330370000 ffffffffa048c6c0
[ 2880.559726] Call Trace:
[ 2880.559734] [<ffffffffa048c6c0>] ? write_dirty+0xc0/0xc0 [bcache]
[ 2880.559738] [<ffffffff8108e45a>] ? kthread+0x9a/0xe0
[ 2880.559741] [<ffffffff8108e3c0>] ? flush_kthread_worker+0xb0/0xb0
[ 2880.559745] [<ffffffff815463bc>] ? ret_from_fork+0x7c/0xb0
[ 2880.559748] [<ffffffff8108e3c0>] ? flush_kthread_worker+0xb0/0xb0
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