[Qemu-devel] -kernel-kqemu causes a linux guest kernel crash

[Matthieu CASTET]

Hi,

I tried to use
http://www.fedoraforum.de/iso/test/rawhide-KDE4-i686-20080109/rawhide-KDE4-i686-20080109.4.iso
image with qemu 0.9.1 (binary version from
http://fabrice.bellard.free.fr/qemu/download.html).

When I don't use -kernel-kqemu, the kernel boot, but if I used -kernel-kqemu I
got a Kernel panic[1].


[1]
divide error: 0000 [#1] SMP 
Modules linked in:

Pid: 1, comm: swapper Not tainted (2.6.24-0.138.rc7.fc9 #1)
EIP: 0060:[<c047bb98>] EFLAGS: 00010002 CPU: 0
EIP is at __inc_zone_state+0x2e/0x51
EAX: c0737c00 EBX: c1199601 ECX: 00000005 EDX: c0730000
ESI: c0737c00 EDI: c0737cae EBP: c7417b74 ESP: c7417b68
 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Process swapper (pid: 1, ti=c7417000 task=c7418000 task.ti=c7417000)
Stack: c11996e8 00000000 c7005b48 c7417b7c c047bfdd c7417b94 c0471a82 00000000 
       c11996e8 c11996e8 c7005b48 c7417ba8 c0471aa9 000000d0 c11996e8 00000000 
       c7417bc4 c0471b31 000000d0 00000000 00000000 00000000 c7433000 c7417bdc 
Call Trace:
 [<c040649a>] show_trace_log_lvl+0x1a/0x2f
 [<c040654a>] show_stack_log_lvl+0x9b/0xa3
 [<c04065f9>] show_registers+0xa7/0x178
 [<c04067ff>] die+0x135/0x220
 [<c063e7f0>] do_trap+0x8a/0xa3
 [<c0406d0a>] do_divide_error+0x85/0x8f
 [<c063e5ba>] error_code+0x72/0x78
 [<c047bfdd>] __inc_zone_page_state+0x18/0x1a
 [<c0471a82>] add_to_page_cache+0x7a/0x8a
 [<c0471aa9>] add_to_page_cache_lru+0x17/0x2b
 [<c0471b31>] __grab_cache_page+0x74/0x91
 [<c04aabd0>] simple_write_begin+0x1e/0x4b
 [<c04727d2>] generic_file_buffered_write+0xe4/0x51b
 [<c0473040>] __generic_file_aio_write_nolock+0x437/0x48a
 [<c04730eb>] generic_file_aio_write+0x58/0xb6
 [<c0492406>] do_sync_write+0xc5/0x102
 [<c0492c0e>] vfs_write+0xa8/0x15c
 [<c0493275>] sys_write+0x3d/0x61
 [<c0775cdc>] do_copy+0x32/0xb1
 [<c0774c9c>] write_buffer+0x1d/0x2c
 [<c0774d0f>] flush_window+0x64/0xb3
 [<c07750e9>] inflate_codes+0x371/0x3c9
 [<c077641f>] inflate_dynamic+0x4d5/0x531
 [<c0776938>] unpack_to_rootfs+0x4bd/0x89b
 [<c0776d94>] populate_rootfs+0x7e/0xe4
 [<c0771579>] kernel_init+0x1f4/0x376
 [<c0405f1f>] kernel_thread_helper+0x7/0x10
 =======================
Code: 89 e5 57 56 89 c6 64 a1 08 20 7b c0 c1 e0 07 8d 84 30 80 00 00 00 8d 7c 10
29 53 8a 1f 43 88 1f 8a 40 28 38 c3 7e 22 b2 02 66 98 <f6> fa 0f be d3 0f be c0
01 c2 90 01 94 8e 40 13 00 00 90 01 14 
EIP: [<c047bb98>] __inc_zone_state+0x2e/0x51 SS:ESP 0068:c7417b68
---[ end trace 778e504de7e3b1e3 ]---
Kernel panic - not syncing: Attempted to kill init!