Re: task hald-addon-stor:2815 blocked for more than 120 seconds.
On Sun, Oct 26, 2008 at 09:05:42PM +0530, Vikram Vincent wrote:
> The following messages keep repeating at regular intervals and I am not sure
> how to deal with them or to ignore them.
> Any suggestions will be useful.
> Thanks.
> Vikram Vincent
I have seen similar multi minute "hangs" on my Q6600 running amd64 with
2.6.26 kernel. I have no idea what caused it to start happening in
2.6.26. I am now running with nohz=off highres=off which seems to have
made the problem go away. 2.6.25 and earlier never do it. It also
seems to always be related to disk IO.
> [ 691.490083] INFO: task hald-addon-stor:2815 blocked for more than 120
> seconds.
> [ 691.490092] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
> this message.
> [ 691.490095] hald-addon-st D 7fffffffffffffff 0 2815 2777
> [ 691.490104] ffff81003c981878 0000000000000082 ffffffffa0120dff
> ffffffffa004bb00
> [ 691.490117] ffffffffa004bb00 ffff81003dbe7020 ffff81003da16080
> ffff81003dbe72a8
> [ 691.490128] ffffffffa004bb90 ffff81002e0cd400 ffffffffa004bb00
> 0000000000000004
> [ 691.490139] Call Trace:
> [ 691.494062] [<ffffffffa0120dff>] :ide_cd_mod:cdrom_newpc_intr+0x0/0x5e1
> [ 691.494077] [<ffffffffa012152b>]
> :ide_cd_mod:cdrom_do_newpc_cont+0x0/0x2b
> [ 691.494089] [<ffffffff804286e3>] schedule_timeout+0x1e/0xad
> [ 691.494114] [<ffffffffa00352e8>] :ide_core:ide_do_request+0x8c7/0x92a
> [ 691.494136] [<ffffffffa0034a3d>] :ide_core:ide_do_request+0x1c/0x92a
> [ 691.494143] [<ffffffff80427cfb>] wait_for_common+0xcf/0x13a
> [ 691.494149] [<ffffffff8022c195>] default_wake_function+0x0/0xe
> [ 691.494171] [<ffffffffa003542d>] :ide_core:ide_do_drive_cmd+0xe2/0x109
> [ 691.494186] [<ffffffffa011fd4c>] :ide_cd_mod:ide_cd_queue_pc+0x42/0xca
> [ 691.494194] [<ffffffffa011fd4c>] :ide_cd_mod:ide_cd_queue_pc+0x42/0xca
> [ 691.494202] [<ffffffff8030d01d>] blk_rq_init+0x1c/0x85
> [ 691.494216] [<ffffffffa011feb3>]
> :ide_cd_mod:cdrom_read_tocentry+0xb1/0xc3
> [ 691.494246] [<ffffffff8030fa2e>] blk_end_sync_rq+0x0/0x2e
> [ 691.494260] [<ffffffffa012019f>] :ide_cd_mod:ide_cd_read_toc+0x101/0x3d6
> [ 691.494277] [<ffffffffa0120a6f>]
> :ide_cd_mod:idecd_revalidate_disk+0x14/0x1b
> [ 691.494283] [<ffffffff8029ccfc>] get_super+0x1a/0x8d
> [ 691.494289] [<ffffffff802be784>] __invalidate_device+0x3a/0x42
> [ 691.494294] [<ffffffff802be7db>] check_disk_change+0x4f/0x76
> [ 691.494306] [<ffffffffa0118346>] :cdrom:cdrom_open+0x983/0xa14
> [ 691.494315] [<ffffffff802aa6cc>] dput+0x1c/0xdd
> [ 691.494320] [<ffffffff8031ae88>] kobject_get+0x12/0x17
> [ 691.494325] [<ffffffff80311cc9>] get_disk+0x40/0x5b
> [ 691.494331] [<ffffffff80311cf0>] exact_lock+0xc/0x14
> [ 691.494342] [<ffffffffa011f454>] :ide_cd_mod:idecd_open+0x5b/0x89
> [ 691.494346] [<ffffffff802bf2e1>] blkdev_open+0x0/0x5d
> [ 691.494352] [<ffffffff802bef08>] do_open+0xd1/0x2e8
> [ 691.494361] [<ffffffff802bf2e1>] blkdev_open+0x0/0x5d
> [ 691.494366] [<ffffffff802bf30f>] blkdev_open+0x2e/0x5d
> [ 691.494373] [<ffffffff80299581>] __dentry_open+0x12c/0x238
> [ 691.494383] [<ffffffff802a5369>] do_filp_open+0x3d7/0x7c4
> [ 691.494394] [<ffffffffa0115508>] :cdrom:cdrom_release+0x1a7/0x1e4
> [ 691.494407] [<ffffffff802ac489>] iput+0x27/0x60
> [ 691.494416] [<ffffffff802992bc>] get_unused_fd_flags+0x71/0x115
> [ 691.494424] [<ffffffff802993a6>] do_sys_open+0x46/0xc3
> [ 691.494432] [<ffffffff8020be9a>] system_call_after_swapgs+0x8a/0x8f
> [ 691.494444]
--
Len Sorensen
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