Comment 9 for bug 262843

I still see it with -5. I see it also with -6 and -7 but both show also ata resets for me where I don't know if it's related or not.

Here is some output for -5:
$ uname -a
Linux vorlon 2.6.27-5-generic #1 SMP Fri Oct 3 00:36:38 UTC 2008 x86_64 GNU/Linux

[ 462.784063] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 462.784076] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 462.784082] synaptic D 0000000000000002 0 6408 6384
[ 462.784095] ffff8800df1c3bc8 0000000000000082 ffff88015f1c3d57 ffff8800df1c3c78
[ 462.784107] ffffffff807a5400 ffffffff807a5400 ffffffff807a5400 ffffffff807a5400
[ 462.784115] ffffffff807a5400 ffffffff807a5400 ffffffff807a5400 ffffffff807a5400
[ 462.784123] Call Trace:
[ 462.784150] [<ffffffff8033a350>] ? proc_delete_inode+0x0/0x70
[ 462.784157] [<ffffffff8033a350>] ? proc_delete_inode+0x0/0x70
[ 462.784167] [<ffffffff805023d5>] schedule_timeout+0x95/0xd0
[ 462.784176] [<ffffffff80502186>] wait_for_common+0xb6/0x1a0
[ 462.784185] [<ffffffff802475c0>] ? default_wake_function+0x0/0x10
[ 462.784193] [<ffffffff80502308>] wait_for_completion+0x18/0x20
[ 462.784202] [<ffffffff80262cd2>] flush_cpu_workqueue+0x62/0xa0
[ 462.784209] [<ffffffff80262930>] ? wq_barrier_func+0x0/0x20
[ 462.784217] [<ffffffff80262e63>] flush_workqueue+0x53/0x70
[ 462.784224] [<ffffffff80262e95>] flush_scheduled_work+0x15/0x20
[ 462.784232] [<ffffffff8040d05d>] tty_ldisc_release+0x4d/0x1f0
[ 462.784240] [<ffffffff80503bbe>] ? _spin_lock+0xe/0x20
[ 462.784249] [<ffffffff80406abd>] release_dev+0x45d/0x5c0
[ 462.784256] [<ffffffff80408644>] ? tty_ioctl+0xf4/0x770
[ 462.784264] [<ffffffff802ffa94>] ? d_free+0x74/0x80
[ 462.784271] [<ffffffff80406c3e>] tty_release+0x1e/0x30
[ 462.784278] [<ffffffff802ecae9>] __fput+0xc9/0x1b0
[ 462.784284] [<ffffffff802ecbf5>] fput+0x25/0x30
[ 462.784290] [<ffffffff802e8f9b>] filp_close+0x5b/0x90
[ 462.784296] [<ffffffff802e908f>] sys_close+0xbf/0x120
[ 462.784305] [<ffffffff8021289a>] system_call_fastpath+0x16/0x1b

This got repeated for synaptic several times:
[ 595.928066] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 729.072053] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 862.216053] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 995.360062] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 1128.504061] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 1261.648062] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 1394.792060] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 1527.936062] INFO: task synaptic:6408 blocked for more than 120 seconds.
[ 1661.080057] INFO: task synaptic:6408 blocked for more than 120 seconds.