Re: [Qemu-devel] Segmentation fault booting arm-test-0.2.tar.gz

[Alexander Graf]

On Apr 19, 2008, at 6:13 PM, Blue Swirl wrote:

> On 4/19/08, Lars Munch <address@hidden> wrote:
> > Hi
> >
> > With latest svn I get segmentation fault while booting the  
> > testimage arm-test-0.2.tar.gz:
> >
> > qemu-system-arm -kernel zImage.integrator -initrd arm_root.img - 
> > nographic -append "console=ttyAMA0"
> > Uncompressing Linux................Segmentation fault
> >
> > Reverting to svn version 4137 (just before the arm convertion to TCG)
> > everything works fine.
> >
> > I am building with gcc-3.4 (GCC) 3.4.6 (Debian 3.4.6-7)
> >
> > Attached is a full backtrace.
> >
> > Regards
> > Lars Munch
> >
> > (gdb) bt
> > #0  tb_reset_jump_recursive (tb=0x12fe14) at /home/lmc/Projects/ 
> > qemu/qemu-rHEAD/exec.c:1024
> > #1  0x08105431 in cpu_interrupt (env=0x9c68100, mask=1) at /home/ 
> > lmc/Projects/qemu/qemu-rHEAD/exec.c:1230
> > #2  0x0804d806 in host_alarm_handler (host_signum=14) at /home/lmc/ 
> > Projects/qemu/qemu-rHEAD/vl.c:1203
> > #3  <signal handler called>
> > #4  0x08108bff in cpu_arm_exec (env1=0x1) at /home/lmc/Projects/ 
> > qemu/qemu-rHEAD/cpu-exec.c:223
> > #5  0x08058a3d in main (argc=15172, argv=0x5f60) at /home/lmc/ 
> > Projects/qemu/qemu-rHEAD/vl.c:7549
>
> I guess you are on i386 host. Because of exactly the same symptoms, I
> have not committed the final pieces of Sparc TCG conversion. I suspect
> the problem is that one of ESI/EDI/EBX is not saved when they should.
> Adding function prologue/epilogue to TCG should help, Fabrice said
> he's working on it.

He did? Last mail I remember was that he told us how to do it. It very  
much sounded like he's lacking the time to actually implement it.

Alex

>