imapd dies when connecting with Mozilla-1.6beta Mail IMAP account

[Hajo Beckefeld]

Hi,

>>
>> I'm running a cyrus IMAP server 2.1.16 on an Linux 2.2.25 machine.
>> When I try connect from an Mozilla 1.6/1.7 IMAP client, I can't 
>> establish the connection. The log just says:
>>
>> Jan  4 13:52:43 jinn master[12215]: about to exec /usr/cyrus/bin/imapd
>> Jan  4 13:52:43 jinn imap[12215]: executed
>> Jan  4 13:52:43 jinn imapd[12215]: accepted connection
>> Jan  4 13:52:50 jinn master[2293]: process 12215 exited, signaled to 
>> death by 11
> 
> 
> Can you provide a backtrace of a core dump and/or a telemetry log of the 
> traffic?  Since it looks like its crashing before/during authentication, 
> you'll need to use something like ssldump (or the like) to capture the 
> IMAP traffic.
> 

Here's a tcpdump of my IMAP traffic:

Mozilla-1.6beta - no connection:


jinn:[/root]# tcpdump -n  -i eth0 'dst port imap or src port imap'
tcpdump: listening on eth0
16:55:34.009979 192.168.1.42.32808 > 192.168.1.30.imap2: S 
1228258981:1228258981(0) win 5840 <mss 1460,sackOK,timestamp 192497 
0,nop,wscale 0> (DF)
16:55:34.010038 192.168.1.30.imap2 > 192.168.1.42.32808: S 
2589395966:2589395966(0) ack 1228258982 win 32120 <mss 
1460,sackOK,timestamp 6187898 192497,nop,wscale 0> (DF)
16:55:34.010136 192.168.1.42.32808 > 192.168.1.30.imap2: . ack 1 win 
5840 <nop,nop,timestamp 192497 6187898> (DF)
16:55:34.038366 192.168.1.30.imap2 > 192.168.1.42.32808: P 1:65(64) ack 
1 win 32120 <nop,nop,timestamp 6187901 192497> (DF)
16:55:34.038506 192.168.1.42.32808 > 192.168.1.30.imap2: . ack 65 win 
5840 <nop,nop,timestamp 192500 6187901> (DF)
16:55:34.040309 192.168.1.42.32808 > 192.168.1.30.imap2: P 1:26(25) ack 
65 win 5840 <nop,nop,timestamp 192500 6187901> (DF)
16:55:34.040355 192.168.1.30.imap2 > 192.168.1.42.32808: . ack 26 win 
32120 <nop,nop,timestamp 6187901 192500> (DF)
16:55:34.041641 192.168.1.30.imap2 > 192.168.1.42.32808: P 65:129(64) 
ack 26 win 32120 <nop,nop,timestamp 6187901 192500> (DF)
16:55:34.042300 192.168.1.42.32808 > 192.168.1.30.imap2: P 26:80(54) ack 
129 win 5840 <nop,nop,timestamp 192500 6187901> (DF)
16:55:34.043366 192.168.1.30.imap2 > 192.168.1.42.32808: F 129:129(0) 
ack 80 win 32120 <nop,nop,timestamp 6187901 192500> (DF)
16:55:34.043701 192.168.1.42.32808 > 192.168.1.30.imap2: F 80:80(0) ack 
130 win 5840 <nop,nop,timestamp 192500 6187901> (DF)
16:55:34.043766 192.168.1.30.imap2 > 192.168.1.42.32808: . ack 81 win 
32120 <nop,nop,timestamp 6187901 192500> (DF)



Mozilla-1.5 - working fine:


jinn:[/root]# tcpdump -n  -i eth0 'dst port imap or src port imap'
tcpdump: listening on eth0
16:56:28.537966 192.168.1.20.33423 > 192.168.1.30.imap2: P 
594722016:594722026(10) ack 1462713209 win 44888 <nop,nop,timestamp 
1538974 6180026> (DF)
16:56:28.538229 192.168.1.30.imap2 > 192.168.1.20.33423: P 1:19(18) ack 
10 win 32120 <nop,nop,timestamp 6193351 1538974> (DF)
16:56:28.538328 192.168.1.20.33423 > 192.168.1.30.imap2: . ack 19 win 
44888 <nop,nop,timestamp 1538974 6193351> (DF)
16:56:28.598500 192.168.1.20.33423 > 192.168.1.30.imap2: P 10:36(26) ack 
19 win 44888 <nop,nop,timestamp 1538980 6193351> (DF)
16:56:28.598793 192.168.1.30.imap2 > 192.168.1.20.33423: P 19:56(37) ack 
36 win 32120 <nop,nop,timestamp 6193357 1538980> (DF)
16:56:28.598891 192.168.1.20.33423 > 192.168.1.30.imap2: . ack 56 win 
44888 <nop,nop,timestamp 1538980 6193357> (DF)
16:56:28.658224 192.168.1.20.33423 > 192.168.1.30.imap2: P 36:66(30) ack 
56 win 44888 <nop,nop,timestamp 1538986 6193357> (DF)
16:56:28.658352 192.168.1.30.imap2 > 192.168.1.20.33423: P 56:123(67) 
ack 66 win 32120 <nop,nop,timestamp 6193363 1538986> (DF)
16:56:28.658443 192.168.1.20.33423 > 192.168.1.30.imap2: . ack 123 win 
44888 <nop,nop,timestamp 1538986 6193363> (DF)


It's the same, if I run Mozilla-1.6beta on the "working machine"!