ULE/SCHED_SMP diff for 7.0 - panic on x86
Eric Anderson
anderson at freebsd.org
Tue Jul 17 20:41:38 UTC 2007
Jeff Roberson wrote:
> On Tue, 17 Jul 2007, Jeff Roberson wrote:
>
>> On Tue, 17 Jul 2007, Teufel wrote:
>>
>>> Hi,
>>>
>>> cvsuped kernel sources about 20 mins ago and applied Jeff's new ule
>>> patch.
>>> System boots normaly up, but starting qemu with kqemu (either user or
>>> user and kernel space) results immediatly in kernel trap 12
>>> applying Attilio's patch
>>> http://people.freebsd.org/~attilio/kqemu.diff fixed the kernel trap,
>>> but hangs:
>>>
>>> spin lock 0xc0bbf780 (shed lock 1) held by 0xc5114880 (tid 100003)
>>> too long
>>> panic: spin lock held too long
>>> cpuid = 0
>> Can you enable INVARIANTS, WITNESS, KDB and DDB in your kernel? Then
>> get me a trace when this happens and any other consoles prints that
>> look relevant.
>
> Can you also run ldd on the kqemu binary? I'd like to know if it's
> linked against libthr or libkse.
Note that there was recently a thread in -emulation that sorted this
out. Updating the kqemu and qemu ports should help.
Eric
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