Re: [BUG] soft lockup detected with ipcs

[Jiri Olsa <olsajiri@gmail.com>]

Jiri Kosina wrote:
> On Mon, 3 Mar 2008, Jiri Olsa wrote:
> 
>> ipcs.kernel.out.1 is the kernel log from the time strace ipcs was done.
>> ipcs.kernel.out.2 is from the next run of ipcs that stuck,
>> there's no overlay between those logs.
>> When the kernel freeze I'm getting logs with the spinlock lockup.. and it's repeating.
> 
> Thanks. Have you tried turning lockdep off, if that still triggers?
> 
> Aparently the first BUG leaves the spin lock locked, and all subsequent 
> accessess to it lock the machine hard. We'll need to see what goes wrong 
> inside lockdep.
> 
> Could you please run
> 
> 	addr2line -e vmlinux c0133034
> 
> (passing the path to the vmlinux binary of the crashing kernel to the -e 
> parameter).
> 

I've rebuilt the kernel meanwhile, so dont know how accurate this output is:

/home/jirka/xxx/kernel/linux-2.6-stable/include/asm/atomic_32.h:97

Anyway, I'll run the test again with your patch, and then we can run the addrline again...
I'll try to turn the lockdep off as well.