[parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit k-2.6.16 (up or smp)

[Joel Soete]

Joel Soete wrote:
> Hello pa*,
> 
> [snip]
> 
>>also noticed on n4k runing k-2.6.16-pa0 64bit smp kernel:
>>BUG: soft lockup detected on CPU#0!
>>
> 
> [...]
> 
>> IAOQ[0]: _read_lock+0x18/0x30
>> IAOQ[1]: _read_lock+0x8/0x30
>> RP(r2): send_group_sig_info+0x3c/0xb0
>>
> 
> This kind of hung re-occured on this n4k (64bit smp kernel 2.6.16-pa8);
> 
> I just grab the piminfo but useless:
> [...]
> Parse IAOQ = 0x000000ffff80ff3c for CPU[1]
> 
> Func: _end, Off: 0xffef1f1244, Addr: 0xffff80ff3c
> [...]
> 
> Parse IAOQ = 0x00000000000006c4 for CPU[3]
> 
> [...]
> 
> Sorry,
>     Joel
> 
> PS: I just start the same test but without CONFIG_DETECT_SOFTLOCKUP :<?
> 
well never the less system still hanging after only:
top - 09:04:58 up 1 day, 16:26,  3 users,  load average: 2.40, 2.26, 2.20

training the same test (kernel build in loop)
(just this time without "BUG: soft lockup detected on CPU#0!" msg?)

Thanks,
	Joel