[ 1441.563262] INFO: task shutdown:1011 blocked for more than 120 seconds.
[ 1441.563264] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1441.563266] shutdown        D ffff88021cc9e3c8     0  1011   1005 0x00000004
[ 1441.563270]  ffff88021f8c7e30 0000000000000086 ffff88021cc9e000 ffff88021f8c7fd8
[ 1441.563273]  ffff88021f8c7fd8 ffff88021f8c7fd8 ffffffff8180d020 ffff88021cc9e000
[ 1441.563275]  0007ffffffffffff ffff8802207da400 0000000000000000 0000000000000000
[ 1441.563278] Call Trace:
[ 1441.563284]  [<ffffffff81080ab2>] ? default_wake_function+0x12/0x20
[ 1441.563287]  [<ffffffff8119a7b0>] ? __sync_filesystem+0x90/0x90
[ 1441.563290]  [<ffffffff8121fc28>] ? blk_finish_plug+0x18/0x50
[ 1441.563292]  [<ffffffff8145e50f>] schedule+0x3f/0x60
[ 1441.563294]  [<ffffffff8145ef35>] rwsem_down_failed_common+0xc5/0x160
[ 1441.563297]  [<ffffffff81115f42>] ? do_writepages+0x22/0x50
[ 1441.563299]  [<ffffffff8119a7b0>] ? __sync_filesystem+0x90/0x90
[ 1441.563301]  [<ffffffff8145f005>] rwsem_down_read_failed+0x15/0x17
[ 1441.563303]  [<ffffffff81248434>] call_rwsem_down_read_failed+0x14/0x30
[ 1441.563305]  [<ffffffff8145d3d7>] ? down_read+0x17/0x20
[ 1441.563308]  [<ffffffff8116fb40>] iterate_supers+0x80/0xf0
[ 1441.563309]  [<ffffffff8119a8e0>] sys_sync+0x30/0x70
[ 1441.563312]  [<ffffffff814602a9>] system_call_fastpath+0x16/0x1b
[ 3927.587097] nepomukindexer[10174]: segfault at ffffffffffffffe8 ip 00007f7990350b23 sp 00007fff1a81ea58 error 4 in libstreams.so.0.7.7[7f7990323000+37000][/b]
[48994.795136] TCP: Peer 0000:0000:0000:0000:0000:ffff:503b:7219:53079/44307 unexpectedly shrunk window 4184862400:4184862405 (repaired)
[48999.861819] TCP: Peer 0000:0000:0000:0000:0000:ffff:503b:7219:53079/44307 unexpectedly shrunk window 4184862400:4184862405 (repaired)
[49009.995133] TCP: Peer 0000:0000:0000:0000:0000:ffff:503b:7219:53079/44307 unexpectedly shrunk window 4184862400:4184862405 (repaired)
[49030.288486] TCP: Peer 0000:0000:0000:0000:0000:ffff:503b:7219:53079/44307 unexpectedly shrunk window 4184862400:4184862405 (repaired)
[49070.875145] TCP: Peer 0000:0000:0000:0000:0000:ffff:503b:7219:53079/44307 unexpectedly shrunk window 4184862400:4184862405 (repaired)
[49152.048470] TCP: Peer 0000:0000:0000:0000:0000:ffff:503b:7219:53079/44307 unexpectedly shrunk window 4184862400:4184862405 (repaired)