On 02/16/2012 02:13 PM, Roy Tam wrote:
> * Before a Thread can call SwitchToFiber() it must call
> ConvertThreadToFiber(), but there is no way prior to Vista
> to know if a Thread created by alien code is already a
> Fiber, and the documentation is spectacularly unclear on the
> c
2012/2/16 Kevin Wolf :
> Am 16.02.2012 12:01, schrieb Paolo Bonzini:
>> On 02/16/2012 11:34 AM, Kevin Wolf wrote:
>>> Remember that I saw a similar crash a while ago? It was definitely a
>>> NULL pointer access somewhere inside SwitchToFiber. I can't remember
>>> exactly what came out of it, but I
Am 16.02.2012 12:01, schrieb Paolo Bonzini:
> On 02/16/2012 11:34 AM, Kevin Wolf wrote:
>> Remember that I saw a similar crash a while ago? It was definitely a
>> NULL pointer access somewhere inside SwitchToFiber. I can't remember
>> exactly what came out of it, but I think you and Paolo couldn't
2012/2/16 Kevin Wolf <932...@bugs.launchpad.net>:
> Am 16.02.2012 10:34, schrieb Stefan Hajnoczi:
>> This is interesting because the code is a straightforward usage of
>> coroutines:
>>
>> co = qemu_coroutine_create(bdrv_rw_co_entry);
>> qemu_coroutine_enter(co, &rwco); <--- boom
>>
>> Please mak
On 02/16/2012 11:34 AM, Kevin Wolf wrote:
> Remember that I saw a similar crash a while ago? It was definitely a
> NULL pointer access somewhere inside SwitchToFiber. I can't remember
> exactly what came out of it, but I think you and Paolo couldn't
> reproduce it and I ran out of time for debuggin
Am 16.02.2012 10:34, schrieb Stefan Hajnoczi:
> This is interesting because the code is a straightforward usage of
> coroutines:
>
> co = qemu_coroutine_create(bdrv_rw_co_entry);
> qemu_coroutine_enter(co, &rwco); <--- boom
>
> Please make test-coroutine and try ./test-coroutine. That performs
On Wed, Feb 15, 2012 at 1:59 AM, Roy Tam <932...@bugs.launchpad.net> wrote:
> 0x7c81071e in SwitchToFiber () from C:\WINDOWS\system32\kernel32.dll
> (gdb) bt
> #0 0x7c81071e in SwitchToFiber () from C:\WINDOWS\system32\kernel32.dll
> #1 0x0044774c in qemu_coroutine_switch (from_=0x19593fc, to_=0x
Public bug reported:
Host: XP SP3 / Vista SP2
configure commandline: ./configure --target-list="i386-softmmu" --audio-
drv-list=sdl --audio-card-list=ac97,sb16,adlib --disable-linux-aio
--disable-vnc-thread --disable-vnc-jpeg --extra-cflags="-O0 -pipe"
gcc -v:
Using built-in specs.
Target: mingw
