Re: Crash

It looks like a missing spinlock to me. I have run a mass test loop with
nopreempt kernel for about 3 hours without any problems. I let these test
run during the day. Usually my preempt kernel i will run into an kernel
oops in about a couple of minutes running the same mass test.

im running a mips based custom board with an 500Mhz single core cpu.

Im using Asterisk 10.12.1 and current git version of mISDN, mISDNUser and
LCR.

regards,



2013/5/11 jolly <[email protected]>

> kkjoe kkjoe wrote:
> > it looks like that dsp_Function get called from two different threads.
> > dsp_core.c - function dsp_function:
> > 1. hh->prim == PH_DEACTIVATE_REQ - ch->recv(ch->peer, skb) - crash occurs
> > 2. hh->prim == PH_DEACTIVATE_CNF - dsp->up->send(dsp->up, skb) returns 0
> >
> > dsp_function switch enter PH_DEACTIVATE_REQ
> > dsp_function before ch->recv(ch->peer, skb)
> > dsp_function: enter
> > dsp_function switch enter PH_DEACTIVATE_CNF
> > before dsp->up->send(dsp->up, skb)
> > valuex: 0
> > dsp_function after ch->recv(ch->peer, skb) returns: 0
> > CPU 0 Unable to handle kernel paging request at virtual address
> > c1081088, epc == c1163fcc, ra == c1163af0
> > Oops[#1]:
> >
> > Do you have any idee how to debug any further ?
> can you provide the application that causes the crash? i like to
> reproduce it.
>
>

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