Hi, I am using aufs together with linux-vserver to mount a rootfs with a data partiton. After having 4 nice years with 2.6.22 kernel I upgraded to 2.6.33 with current aufs last week. Today, I got this trace on my mailserver during a period of higher load.
Any ideas / help would be appreciated. Oliver kernel: INFO: task imap:3147 blocked for more than 120 seconds. kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: imap D ffff880139d5f300 0 3147 5829 0x00000000 kernel: ffff88012839fa28 0000000000000086 ffff88012839f9e8 ffff88012839f9e8 kernel: ffff88012839f9f8 ffff88012839ffd8 ffff88012839ffd8 ffff88012839ffd8 kernel: ffff880102efb890 ffffffff815bb040 ffff88012839fa28 ffffffff813a0966 kernel: Call Trace: kernel: [<ffffffff813a0966>] ? dev_queue_xmit+0x3cd/0x3fe kernel: [<ffffffff814405cb>] rwsem_down_failed_common+0x183/0x1a5 kernel: [<ffffffff8144060d>] rwsem_down_write_failed+0x20/0x2a kernel: [<ffffffff8120b7b3>] call_rwsem_down_write_failed+0x13/0x20 kernel: [<ffffffff8143fdff>] ? down_write+0x1f/0x21 kernel: [<ffffffff811d1262>] di_write_lock+0x1d/0x33 kernel: [<ffffffff811c52f7>] aufs_read_lock+0xb9/0xd7 kernel: [<ffffffff811d13be>] ? di_read_unlock+0x63/0x68 kernel: [<ffffffff811d23fc>] aufs_d_revalidate+0x2d/0x341 kernel: [<ffffffff8108d94a>] ? __d_lookup+0xb7/0x11d kernel: [<ffffffff81084c21>] do_lookup+0x245/0x29a kernel: [<ffffffff81394a93>] ? lock_sock_nested+0x8f/0x9a kernel: [<ffffffff81086526>] link_path_walk+0x270/0xb79 kernel: [<ffffffff81086fba>] path_walk+0x6a/0xe5 kernel: [<ffffffff81087110>] do_path_lookup+0x29/0x50 kernel: [<ffffffff81087fb6>] user_path_at+0x52/0x93 kernel: [<ffffffff8143f45e>] ? schedule+0x33b/0x370 kernel: [<ffffffff81080210>] vfs_fstatat+0x35/0x62 kernel: [<ffffffff8108026e>] vfs_stat+0x16/0x18 kernel: [<ffffffff810803ee>] sys_newstat+0x1a/0x3b kernel: [<ffffffff810229e9>] ? default_wake_function+0x0/0xf kernel: [<ffffffff81001e68>] system_call_fastpath+0x16/0x1b -- Protect your environment - close windows and adopt a penguin! PGP-Key: 3B2C 8095 A7DF 8BB5 2CFF 8168 CAB7 B0DD 3985 1721
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------------
