We had the same problem. Reboot with an older kernel
(2.6.18-274.17.1.el5 works for us). It is known bug of RHEL, see this
bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=681578
Regards
Javier
On Thu, 29 Mar 2012 10:15:32 +0200 (CEST), FABIO FERRARI
wrote:
> Good morning,
> we have 2 Redhat Enterprise 5.7 machines,
they are a cluster with some> mail services in it (postfix and dovecot
2).>
> The version of dovecot is dovecot-2.0.1-1_118.el5 (installed
via rpm).>
> From last week we have this dovecot problem: suddenly
dovecot doesn't> accept any new connections, the dovecot.log file
reports lines like these>
> Mar 15 12:38:54 secchia dovecot: imap:
Panic: epoll_ctl(add, 5) failed:> Invalid argument
> Mar 15 12:38:54
secchia dovecot: imap: Error: Raw backtrace:>
/usr/lib64/dovecot/libdovecot.so.0 [0x36ea436de0] ->>
/usr/lib64/dovecot/libdovecot.so.0 [0x36ea436e3a] ->
/usr/lib64/dovecot/> libdovecot.so.0 [0x36ea4362e8] ->
>
/usr/lib64/dovecot/libdovecot.so.0(io_loop_handle_add+0x118)>
[0x36ea441498] ->
/usr/lib64/dovecot/libdovecot.so.0(io_add+0x8f)>
[0x36ea440b7f] -> /usr/li>
b64/dovecot/libdovecot.so.0(master_service_init_finish+0x1c6)>
[0x36ea430c16] -> dovecot/imap(main+0x10a) [0x41773a]
->>
/lib64/libc.so.6(__libc_start_main+0xf4) [0x36ea01d994] ->
dovecot/>
imap [0x408179]> Mar 15 12:38:54 secchia dovecot: master: Error:
service(imap): child 14514> killed with signal 6 (core dumps
disabled)> Mar 15 12:38:54 secchia dovecot: master: Error:
service(imap): command> startup failed, throttling
> Mar 15 12:39:50
secchia dovecot: imap-login: Error: master(imap): Auth> request timed
out (received 0/12 bytes)> Mar 15 12:39:51 secchia dovecot: imap-login:
Error: master(imap): Auth> request timed out (received 0/12 bytes)
>
Mar 15 12:39:51 secchia dovecot: imap-login: Error: master(imap):
Auth>
request timed out (received 0/12 bytes)> Mar 15 12:39:52 secchia
dovecot: imap-login: Error: net_connect_unix(imap)> failed: Resource
temporarily unavailable> Mar 15 12:39:52 secchia dovecot: imap-login:
Error: net_connect_unix(imap)> failed: Resource temporarily
unavailable> Mar 15 12:39:52 secchia dovecot: imap-login: Error:
master(imap): Auth> request timed out (received 0/12 bytes)
> Mar 15
12:39:53 secchia dovecot: imap-login: Error:
net_connect_unix(imap)>
failed: Resource temporarily unavailable> Mar 15 12:39:53 secchia
dovecot: imap-login: Error: net_connect_unix(imap)> failed: Resource
temporarily unavailable> Mar 15 12:39:54 secchia dovecot: imap-login:
Error: net_connect_unix(imap)> failed: Resource temporarily
unavailable> Mar 15 12:39:54 secchia dovecot: imap: Error: Login client
disconnected> too early
> Mar 15 12:39:54 secchia dovecot: imap: Error:
Login client disconnected> too early
> Mar 15 12:39:54 secchia dovecot:
imap: Error: Login client disconnected> too early
> Mar 15 12:39:54
secchia dovecot: imap: Error: Login client disconnected> too early
>
Mar 15 12:39:55 secchia dovecot: imap: Panic: epoll_ctl(add, 5)
failed:> Invalid argument
>
> and the kern.log file reports
>
> Mar
15 12:38:52 secchia kernel: dlm: closing connection to node
1> Mar 15
12:39:04 secchia kernel: lpfc 0000:83:00.0: 1:(0):2753
PLOGI> failure
DID:010400 Status:x9/x32900> Mar 15 12:39:04 secchia kernel: lpfc
0000:03:00.0: 0:(0):2753 PLOGI> failure DID:010400 Status:x9/x32900
>
Mar 15 12:41:14 secchia kernel: lpfc 0000:03:00.0: 0:(0):2753
PLOGI>
failure DID:010400 Status:x9/x32900> Mar 15 12:41:15 secchia kernel:
lpfc 0000:83:00.0: 1:(0):2753 PLOGI> failure DID:010400
Status:x9/x32900> Mar 15 12:42:11 secchia kernel: dlm: got connection
from 1>
> can you help us?
>
> thanks in advance
>
> Fabio Ferrari