I upgraded from gentoo-sources-2.6.27-r4 to -r5 a couple of days ago and
got the below error messages in /var/log/messages. Also dovecot was
using 100% CPU and could not be killed. This resulted in me having to
hard reset the server. This happened 3 times until I eventually reverted
back to -r4 and all was stable again. The config used for both kernels
was the same and it happened after irregular intervals of between 5
hours and 9 hours.
Anyone have any ideas? Things are back to normal now but I will
obviously be wary about my next kernel upgrade.
Cheers,
Dave.
Dec 15 23:28:07 blackadder dovecot: IMAP(XXX): Disconnected in IDLE
bytes=2719/16492
Dec 15 23:28:07 blackadder dovecot: IMAP(XXX): Disconnected in IDLE
bytes=7074/519701
Dec 15 23:28:07 blackadder dovecot: IMAP(XXX): Connection closed
bytes=2238/2810
Dec 15 23:28:34 blackadder named[6829]: *** POKED TIMER ***
Dec 15 23:28:34 blackadder named[6829]: *** POKED TIMER ***
Dec 15 23:28:34 blackadder named[6829]: *** POKED TIMER ***
Dec 15 23:28:54 blackadder BUG: soft lockup - CPU#3 stuck for 61s!
[imap:30763]
Dec 15 23:28:54 blackadder Modules linked in: dahdi_echocan_mg2 pppoe
pppox ppp_async ppp_generic slhc lirc_dev ipt_ipp2p wctdm dahdi
dvb_usb_dib0700 dcdbas
Dec 15 23:28:54 blackadder CPU 3:
Dec 15 23:28:54 blackadder Modules linked in: dahdi_echocan_mg2 pppoe
pppox ppp_async ppp_generic slhc lirc_dev ipt_ipp2p wctdm dahdi
dvb_usb_dib0700 dcdbas
Dec 15 23:28:54 blackadder Pid: 30763, comm: imap Not tainted
2.6.27-gentoo-r5 #1
Dec 15 23:28:54 blackadder RIP: 0010:[<ffffffff806424c0>]
[<ffffffff806424c0>] mutex_lock+0x3/0xb
Dec 15 23:28:54 blackadder RSP: 0018:ffff8800047e3ea0 EFLAGS: 00000246
Dec 15 23:28:54 blackadder RAX: 0000000000000000 RBX: ffff88008dc92bc0
RCX: 0000000000000001
Dec 15 23:28:54 blackadder RDX: 0000000000000002 RSI: 0000000000000001
RDI: ffff88008dc92be0
Dec 15 23:28:54 blackadder RBP: 0000000040000000 R08: 0000000000000000
R09: 49450350474a6a2f
Dec 15 23:28:54 blackadder R10: 0000000000000000 R11: 0000000000000246
R12: 0000000000000000
Dec 15 23:28:54 blackadder R13: 49450350474a6a2f R14: 0000000000000000
R15: 0000000000000246
Dec 15 23:28:54 blackadder FS: 00007f51e570c6f0(0000)
GS:ffff8800bf687b40(0000) knlGS:0000000000000000
Dec 15 23:28:54 blackadder CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Dec 15 23:28:54 blackadder CR2: 00007f51e5089860 CR3: 00000000481bc000
CR4: 00000000000006e0
Dec 15 23:28:54 blackadder DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
Dec 15 23:28:54 blackadder DR3: 0000000000000000 DR6: 00000000ffff0ff0
DR7: 0000000000000400
Dec 15 23:28:54 blackadder
Dec 15 23:28:54 blackadder Call Trace:
Dec 15 23:28:54 blackadder [<ffffffff802b1976>] ? inotify_destroy+0x21/0xd7
Dec 15 23:28:54 blackadder [<ffffffff802b1ebc>] ? inotify_release+0x1c/0xad
Dec 15 23:28:54 blackadder [<ffffffff80288578>] ? __fput+0x9d/0x186
Dec 15 23:28:54 blackadder [<ffffffff80285db3>] ? filp_close+0x48/0x6e
Dec 15 23:28:54 blackadder [<ffffffff8028701d>] ? sys_close+0x7e/0xbe
Dec 15 23:28:54 blackadder [<ffffffff8020b42b>] ?
system_call_fastpath+0x16/0x1b
Dec 15 23:28:54 blackadder
