On Wed, Oct 31, 2012 at 06:05:57PM +0100, Stefan Weil wrote: > Am 31.10.2012 00:56, schrieb Aurelien Jarno: > >On Tue, Oct 30, 2012 at 11:24:34PM +0100, Stefan Weil wrote: > >>Am 30.10.2012 09:15, schrieb Paolo Bonzini: > >>>Il 29/10/2012 19:29, Aurelien Jarno ha scritto: > >>>>On Mon, Oct 29, 2012 at 06:53:14PM +0100, Paolo Bonzini wrote: > >>>>>>Known-good commit: 8473f377393219390ea6f2d8d450a2b054bb823e > >>>>>>Known-bad commit: d262cb02861dd33375c08fc798930653b14769e9 > >>>>>> > >>>>>>i386-softmmu seems to work. I may try to bisect it tomorrow, but I'd be > >>>>>>glad if somebody else beats me. It can be reproduced with Wine and > >>>>>>"x86_64-softmmu/qemu-system-x86_64.exe -L ../pc-bios"; it hangs at iPXE. > >>>>Oops, sorry about that. Is it win32 or win64? I'll try to fix it asap, > >>>>but right now I don't have a good network connection enough to either > >>>>setup a mingw build environment or to connect to a remote machine with > >>>>such an environment. > >>>It's win32, and the first bad commit is 9c43b68 (tcg: rework liveness > >>>analysis, 2012-10-09). But it looks like 64-on-32 emulation is more > >>>generally broken. I now tried x86_64-linux-user compiled for 32-bit, > >>>and it segfaults on startup. Even the previous commit cannot run > >>>qemu-x86_64 /bin/ls correctly: > >>> > >>I just tested with latest qemu-system-x86_64 on 32 bit Linux. > >> > >>It also hangs during boot (BIOS), so it looks like this > >>is not a MinGW only problem. > >> > >>Your test with x86_64-linux-user indicates that, too. > >> > >>I also get the problem with TCI. Therefore I expect that any > >>32 bit TCG target will show it. > >> > >It ended up to be a merge issue. The newly added special cases > >for half-dead operations also need to be changed with the liveness > >analysis rework. > > > >The attached patch fixes the issue on a 32-bit linux host. I haven't > >tried win32 yet, maybe someone will beat me. > > > Tested-by: Stefan Weil <s...@weilnetz.de> > > Your attached patch fixes the problem seen with qemu-system-x86_64 > on 32 bit Linux and with 32 bit Windows. > > I think you can commit it to git master. >
Done. Thanks for the test. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net
