Subject: occassional hangs (non-smp) 2.0.2
To: None <port-alpha@netbsd.org>
From: Stephen M. Jones <smj@cirr.com>
List: port-alpha
Date: 08/03/2005 17:03:45
I've been experiencing occassional hangs on an NFS server running
NetBSD 2.0.2 (Jul 24th sys.tar.gz source and prior up to the 2.0.2 release).
The NFS clients also run the same kernel as the NFS server but do not
experience hangs.
The machine hangs under normal load and can break to the debugger on
the console.
I can not switch to single user mode by killing init, nor can I continue.
I can provide further details upon request.
A trace and a portion of the process table follow:
cpu_Debugger() at netbsd:cpu_Debugger+0x4
comintr() at netbsd:comintr+0x768
alpha_shared_intr_dispatch() at netbsd:alpha_shared_intr_dispatch+0x6c
sio_iointr() at netbsd:sio_iointr+0x40
interrupt() at netbsd:interrupt+0x278
XentInt() at netbsd:XentInt+0x1c
--- interrupt (from ipl 0) ---
ltsleep() at netbsd:ltsleep+0xe0
uvm_scheduler() at netbsd:uvm_scheduler+0xd4
check_console() at netbsd:check_console
PID PPID PGRP UID S FLAGS LWPS COMMAND WAIT
11548 8769 3013 0 2 0x6000 1 cut
14530 780 11 92 2 0x4000 1 sleep
2440 15827 15827 99 2 0x4002 1 more ttyin
8769 24297 3013 0 2 0x4000 1 ksh
28533 1 28533 0 2 0x400 3 named *
28476 23388 28476 99 2 0x4002 1 ksh ttyin
23388 612 612 0 2 0x4000 1 telnetd
15827 6981 15827 99 2 0x4002 1 ksh pause
6981 612 612 0 2 0x4000 1 telnetd
14272 12465 12465 99 2 0x4002 1 htpasswd ttyin
12465 29790 12465 99 2 0x4002 1 ksh pause
29790 612 612 0 2 0x4000 1 telnetd poll
24297 3013 3013 0 2 0x4000 1 ksh pause
3013 3436 3013 0 2 0x4000 1 sh wait
3436 1326 1326 0 2 0 1 cron piperd
28072 5371 28072 0 2 0x4002 1 ksh ttyin
8596 1 8596 99 2 0x4002 1 ssh ttyopn
27571 4443 27571 99 2 0x4002 1 ksh ttyin
4443 612 612 0 2 0x4000 1 telnetd
2320 703 703 32767 2 0x100 1 httpd netcon
13047 703 703 32767 2 0x100 1 httpd netcon