netconsole lockup with current kernel 2.6.13-rc6-git3
From: Olaf Hering (olh_at_suse.de)
Date: 08/12/05
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Date: Fri, 12 Aug 2005 15:19:43 +0200 To: linux-kernel@vger.kernel.org
on the system to debug do:
girgendwas:~ # netconsole-server boettger:12346
verify the loglevel. otherwise no message may appear on the remove host, see man
dmesg(1)
now run 'netcat -l -u -p 12346' on host 10.10.125.16 to see further kernel messages
girgendwas:~ # echo 8 > /proc/sysrq-trigger
girgendwas:~ # echo t > /proc/sysrq-trigger
on the system to retrieve kernel messages from client above do:
netcat -l -u -p 12346
SysRq : Changing Loglevel
Loglevel set to 8
SysRq : Show State
sibling
task PC pid father child younger older
init S 00000286 0 1 0 2 (NOTLB)
dfe1fec8 00000082 dfe1e000 00000286 0000002c 00000058 4f924352 00007b27
ffff037f 00000bca 4f924ace 00007b27 c15d3b88 c15d3a60 c15d3540 c140d160
4f92b4eb 00007b27 dfe1e000 00000000 00000282 c012f350 0204f514 c140dfe0
Call Trace:
[<c012f350>] lock_timer_base+0x20/0x50
[<c012f428>] __mod_timer+0xa8/0xd0
[<c0342d7e>] schedule_timeout+0x4e/0xc0
[<c012fed0>] process_timeout+0x0/0x10
[<c018541f>] do_select+0x2af/0x360
[<c0184f90>] __pollwait+0x0/0xd0
this is all I get, then the system is dead. I see it also on G5, no interrupts
served. Will check if older kernels work ok, it does at least work in SLES9
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