One more attempt: stuck processes

[Sebastian Hagedorn]

--On 15. November 2007 08:32:18 -0500 Ken Murchison <murch at andrew.cmu.edu> 
wrote:

>>> Since it looks like things are hanging when a process is being used, I'd
>>> like to see if the problem goes away if we don't reuse the processes.
>>> I'm just trying to do a bsearch() on the problem.
>>
>> OK. I've made the change and HUP'ed master. I can see the first
>> processes with -U 1. So I guess I'll have to wait a while to see if any
>> of those get stuck as well.
>
> OK, let me know.

Didn't work :-(

# ps -aef| grep U
UID        PID  PPID  C STIME TTY          TIME CMD
...
cyrus    25038 32385  0 15:44 ?        00:00:00 pop3d -s -U 1
...

That's more than an hour ago. So:

# strace -p 25038
Process 25038 attached - interrupt to quit
read(0,  <unfinished ...>

# gdb -p 25038
GNU gdb Red Hat Linux (6.3.0.0-1.138.el3rh)
...
(gdb) bt
#0  0x0079f41e in __read_nocancel () from /lib/tls/libc.so.6
#1  0x00d0b2f7 in BIO_new_socket () from /lib/libcrypto.so.4
#2  0x00d092b2 in BIO_read () from /lib/libcrypto.so.4
#3  0x005dae13 in ssl23_read_bytes () from /lib/libssl.so.4
#4  0x005d9c51 in ssl23_get_client_hello () from /lib/libssl.so.4
#5  0x005d9712 in ssl23_accept () from /lib/libssl.so.4
#6  0x005ddc9a in SSL_accept () from /lib/libssl.so.4
#7  0x08052cb3 in shut_down ()
#8  0x0804e513 in shut_down ()
#9  0x0804d58c in ?? ()
#10 0x00000001 in ?? ()
#11 0x082ee848 in ?? ()
#12 0x00000000 in ?? ()

Any other ideas?
-- 
     .:.Sebastian Hagedorn - RZKR-R1 (Gebäude 52), Zimmer 18.:.
Zentrum für angewandte Informatik - Universitätsweiter Service RRZK
.:.Universität zu Köln / Cologne University - ✆ +49-221-478-5587.:.
                   .:.:.:.Skype: shagedorn.:.:.:.
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