Re: [Qemu-devel] qemu-system-nios2 hangs when emulator is quit

[Marek Vasut]

On 10/10/2017 05:19 PM, Paolo Bonzini wrote:
> On 10/10/2017 10:58, Marek Vasut wrote:
>>> #0  0x00007ffff7931945 in pthread_cond_wait@@GLIBC_2.3.2 () at 
>>> /lib64/libpthread.so.0
>>> #1  0x00005555557cf9c5 in qemu_cond_wait (address@hidden <qemu_pause_cond>, 
>>> address@hidden <qemu_global_mutex>) at util/qemu-thread-posix.c:161
>>> #2  0x0000555555606ee8 in pause_all_vcpus () at cpus.c:1620
>>> #3  0x00005555555cc43a in main (argc=<optimized out>, argv=<optimized out>, 
>>> envp=<optimized out>)
>>>     at vl.c:4906
>>>
>>> Looks like the CPU does not get stopped right? Unfortunately, I've got no
>>> good clue how to debug that further right now...
>> I'd look at pause_all_vcpus() and check why it is stuck.
>> I'm a bit overloaded at the moment, so I don't have time to dig in it.
>>
> 
> It's actually the CPU thread that is stuck because the
> start-of-translation-block test is wrong and never succeeds:
> 
> 0x7fd715fff0c0:  mov    -0x14(%rsp),%ebp
> 0x7fd715fff0c4:  test   %ebp,%ebp
> 0x7fd715fff0c6:  jl     0x7fd715fff0e4
> 
> It should be using %r14, not %rsp.  I've sent a patch.

Oh nice, thank you :)

-- 
Best regards,
Marek Vasut