pop3d hangs in 2.2.13 (no apop)

[Ingo Herz]

Hi,

we are using cyrus 2.2.13 (2.2.13-10+etch4) with Debian Etch since more
than 3 years now. From one day to the other pop3d began to hang from
time to time. All other services (pop3s, imap, imaps) run fine. pop3 can
only be made alive again by killing the hanging pop3d processes or
restarting cyrus. Attached is the tail of a strace to a process that had
to be killed.

Any help/hint would be very appreciated! This error drives me crazy. I'm
looking behind this for the last days and I don't get it :-(

regards,
Ingo

11:16:26.457592 rt_sigaction(SIGALRM, {0x8069978, [], SA_ONESHOT}, NULL, 8) = 0

11:16:26.457629 rt_sigaction(SIGHUP, {0x8069978, [], SA_RESTART|SA_ONESHOT}, NULL, 8) = 0

11:16:26.457666 rt_sigaction(SIGINT, {0x8069978, [], SA_RESTART|SA_ONESHOT}, NULL, 8) = 0

11:16:26.457702 rt_sigaction(SIGQUIT, {0x8069978, [], SA_RESTART|SA_ONESHOT}, NULL, 8) = 0

11:16:26.457737 alarm(60)               = 0

11:16:26.457764 fcntl64(11, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = 0

11:16:29.255416 stat64("/usr/lib/cyrus/bin/pop3d", {st_mode=S_IFREG|0755, st_size=1379071, ...}) = 0

11:16:29.255632 accept(4, 0, NULL)      = 12

11:16:29.670991 fcntl64(11, F_SETLKW, {type=F_UNLCK, whence=SEEK_SET, start=0, len=0}) = 0

11:16:29.671063 alarm(0)                = 57

11:16:29.671176 getpeername(12, 0xbfba77d0, [128]) = -1 ENOTCONN (Transport endpoint is not connected)

11:16:29.671246 getpeername(12, 0xb7d13b00, [128]) = -1 ENOTCONN (Transport endpoint is not connected)

11:16:29.671312 recvfrom(12, 0xbfba5798, 8192, 2, 0xb7d13b00, 0xbfba7798) = ? ERESTARTSYS (To be restarted)

11:22:08.898181 --- SIGTERM (Terminated) @ 0 (0) ---

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