Re: Deadlocks

[Phil Oester <kernel@linuxace.com>]

Well, it lasted about 36 hours -- not much longer than usual.  Unfortunately,
the stack appears to have been corrupted, so I can't get a decent backtrace.
Here is what I could get off of SysRQ-P:

Pid: 0, comm:              swapper
EIP: 0060:[<c0258b15>] CPU: 1
EIP is at tcp_find_option+0x55/0xa0
 EFLAGS: 00000203    Not tainted  (2.6.7)
EAX: 000000fe EBX: 00000040 ECX: 00000002 EDX: 00000034
ESI: 00000018 EDI: f89c39bc EBP: 00000000 DS: 007b ES: 007b
CR0: 8005003b CR2: 080da0b4 CR3: 379cc000 CR4: 000006d0
Stack pointer is garbage, not printing trace

Perhaps of interest, not sure, but the FTP server at 10.0.16.197 frequently
shows duplicate expectations, as shown below shortly after rebooting:

EXPECTING: - use=1 proto=6 src=10.0.16.197 dst=10.0.53.248 sport=0 dport=4353 
EXPECTING: - use=1 proto=6 src=10.0.16.197 dst=10.0.53.248 sport=0 dport=4353 
EXPECTING: - use=1 proto=6 src=10.0.16.197 dst=10.0.53.248 sport=0 dport=4353 

Unless you've got any other ideas, may have to revert this box to non-SMP
so I can have a peaceful weekend ;-)

Phil


On Thu, Jun 17, 2004 at 06:20:15PM +0200, Patrick McHardy wrote:
> Phil Oester wrote:
> >In any event, I have applied your patch to 2.6.7, and am running it.  
> >Typically
> >the box would not last more than a couple days, so I'll let you know what 
> >happens.
> 
> Great, I'm really interested ..