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

[Roy Tam]

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