Re: [Qemu-devel] [Bug 824650] [NEW] Latest GIT assert error in arp_table.c

[Jan Kiszka]

On 2011-09-15 06:11, Roy Tam wrote:
> 2011/8/12 Nigel Horne <address@hidden>:
>> Public bug reported:
>>
>> The latest git version of qemu (commit
>> 8cc7c3952d4d0a681d8d4c3ac89a206a5bfd7f00) crashes after a few minutes.
>> All was fine up to a few days ago.  This is wth both x86 and sparc
>> emulation, on an x86_64 host.
>>
>> e.g. qemu-system-sparc -drive
>> file=netbsd5.0.2-sparc,index=0,media=disk,cache=unsafe -m 256 -boot c
>> -nographic -redir tcp:2232::22:
>>
>>  qemu-system-sparc: slirp/arp_table.c:75: arp_table_search: Assertion
>> `(ip_addr & (__extension__ ({ register unsigned int __v, __x = (~(0xf <<
>> 28)); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000) >>
>> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) |
>> (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) :
>> "0" (__x)); __v; }))) != 0' failed.
>>
>> ** Affects: qemu
>>     Importance: Undecided
>>         Status: New
>>
>> --
>> You received this bug notification because you are a member of qemu-
>> devel-ml, which is subscribed to QEMU.
>> https://bugs.launchpad.net/bugs/824650
>>
>> Title:
>>  Latest GIT assert error in arp_table.c
>>
>> Status in QEMU:
>>  New
>>
>> Bug description:
>>  The latest git version of qemu (commit
>>  8cc7c3952d4d0a681d8d4c3ac89a206a5bfd7f00) crashes after a few minutes.
>>  All was fine up to a few days ago.  This is wth both x86 and sparc
>>  emulation, on an x86_64 host.
>>
>>  e.g. qemu-system-sparc -drive
>>  file=netbsd5.0.2-sparc,index=0,media=disk,cache=unsafe -m 256 -boot c
>>  -nographic -redir tcp:2232::22:
>>
>>   qemu-system-sparc: slirp/arp_table.c:75: arp_table_search: Assertion
>>  `(ip_addr & (__extension__ ({ register unsigned int __v, __x = (~(0xf
>>  << 28)); if (__builtin_constant_p (__x)) __v = ((((__x) & 0xff000000)
>>  >> 24) | (((__x) & 0x00ff0000) >> 8) | (((__x) & 0x0000ff00) << 8) |
>>  (((__x) & 0x000000ff) << 24)); else __asm__ ("bswap %0" : "=r" (__v) :
>>  "0" (__x)); __v; }))) != 0' failed.
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/qemu/+bug/824650/+subscriptions
>>
>>
> 
> I'm hitting same assertion too.
> 
> Assertion failed: (ip_addr & htonl(~(0xf << 28))) != 0, file
> slirp/arp_table.c, line 75
> 
> Environment: Win XP SP3 host, MinGW gcc 4.3.3-tdm-1
> Build: qemu.git rev 44520db10b1b92f272348ab7028e7afc68ac3edf
> CommandLine: qemu -hda e:\xp.vmdk -soundhw sb16 -m 320 -localtime -usb
> -usbdevice tablet -net user -net nic,model=ne2k_pci -drive
> if=none,id=usbstick,file=e:\4m.img -device
> usb-storage,bus=usb.0,drive=usbstick

Same request here: Please try to catch a bit more context (backtrace,
variable states etc.) via gdb. Or if you have a way to reproduce the
issue, let me know the details.

Thanks,
Jan

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