[Qemu-devel] FreeBSD-amd64 guest, monitor does not respond

[Qemu-devel] FreeBSD-amd64 guest, monitor does not respond

[Juergen Lock]

I was curious today and tried the FreeBSD-amd64 install iso in qemu,
	qemu-system-x86_64 -m 256 -monitor stdio -cdrom 5.3-RELEASE-amd64-bootonly.iso -boot d
and, (actually i tried miniinst first, but bootonly is smaller and shows
the same result) qemu hangs when starting the kernel, the monitor does not
respond, all I can do is ^c it.  (the started kernel is supposed to print
messages starting with the copyright but it doesnt even get to that.)

 So, question: what does it mean when the monitor doesnt respond?
infinite loop in the translated code?

 Well, i just tried it in gdb and this is what i get when ^c'ing it:

Program received signal SIGINT, Interrupt.
[Switching to Thread 1077076096 (LWP 18901)]
0x080f00ee in do_interrupt64 (intno=13, is_int=0, error_code=0, 
    next_eip=4626569007820963840, is_hw=0) at softmmu_header.h:237
237     {
(gdb) bt
#0  0x080f00ee in do_interrupt64 (intno=13, is_int=0, error_code=0, 
    next_eip=4626569007820963840, is_hw=0) at softmmu_header.h:237
#1  0x080a85ae in cpu_x86_exec (env1=0x908b528)
    at /home/knoppix/qemu/qemu/cpu-exec.c:199
#2  0x0804e5f1 in main_loop () at /home/knoppix/qemu/qemu/vl.c:2675
#3  0x0804f5cc in main (argc=161702, argv=0x0)
    at /home/knoppix/qemu/qemu/vl.c:3671
(gdb) 

 so its processing interrupts apparently, but why does that `hang' qemu?

 mirrors for bootonly and the other isos can be found here:
	http://mirrorlist.freebsd.org/
for example:
	ftp://ftp.fr.freebsd.org/pub/FreeBSD/releases/amd64/ISO-IMAGES/5.3/
(bootonly is some 20M, the others are larger)

 Cheers,
	Juergen

Re: [Qemu-devel] FreeBSD-amd64 guest, monitor does not respond

[Fabrice Bellard]

Juergen Lock wrote:
> I was curious today and tried the FreeBSD-amd64 install iso in qemu,
> 	qemu-system-x86_64 -m 256 -monitor stdio -cdrom 5.3-RELEASE-amd64-bootonly.iso -boot d
> and, (actually i tried miniinst first, but bootonly is smaller and shows
> the same result) qemu hangs when starting the kernel, the monitor does not
> respond, all I can do is ^c it.  (the started kernel is supposed to print
> messages starting with the copyright but it doesnt even get to that.)

With my last patch the FreeBSD kernel boots, but user mode apps seem to 
have problems.

Fabrice.

Re: [Qemu-devel] FreeBSD-amd64 guest, monitor does not respond

[Juergen Lock]

In article <41EAFAF7.5090108@bellard.org> you write:
>Juergen Lock wrote:
>> I was curious today and tried the FreeBSD-amd64 install iso in qemu,
>> 	qemu-system-x86_64 -m 256 -monitor stdio -cdrom 5.3-RELEASE-amd64-bootonly.iso -boot d
>> and, (actually i tried miniinst first, but bootonly is smaller and shows
>> the same result) qemu hangs when starting the kernel, the monitor does not
>> respond, all I can do is ^c it.  (the started kernel is supposed to print
>> messages starting with the copyright but it doesnt even get to that.)
>
>With my last patch the FreeBSD kernel boots, but user mode apps seem to 
>have problems.

Seems to be some tty problem:  ^t says sysinstall is sleeping in ttyin,
if i hit return it comes up, but with garbled formatting.  I can even
start a shell on ttyv4 (cursor right and return for no to the load kernel
modules question, return until the (also misformatted) main menu appears,
`f' and return for fixit, `4' and return for shell, then `sendkey alt-f4'
in the monitor.)  The shell misses its prompt but other than that it
seems to work, at least I can do things like `pwd', `echo *', or `find .'

 So apparently some bug in qemu makes the tty code misbehave...

	Juergen