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Date:      Mon, 31 Jan 2011 06:00:34 +0300
From:      wasd wasdov <wasd94@gmail.com>
To:        freebsd-ports-bugs@freebsd.org
Subject:   qemu w/kqemu crashes under 8.1-p2 amd64
Message-ID:  <AANLkTinLMCxhExwuMFd0XT=TfZ4kujEQQ0Dxj9g2WDRW@mail.gmail.com>

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Hello. I have trouble with qemu.
[wasd@iwhag ~]$ uname -a
FreeBSD iwhag.ws 8.1-RELEASE-p2 FreeBSD 8.1-RELEASE-p2 #0: Sat Jan 15
06:57:34 MSK 2011     root@iwhag.ws:/usr/obj/usr/src/sys/GENERIC  amd64

kqemu-kmod-devel-1.4.0.p1_5 and qemu-0.11.1_5

[wasd@iwhag ~]$ sudo qemu-system-x86_64 -cdrom
archlinux-2010.05-netinstall-x86_64.iso -m 128 -boot d -enable-kqemu -vnc :0
-localtime -net nic,model=e1000 -net tap,name=tap0,script=no -hda arch.raw
-usbdevice tablet

Then Archlinux loads, opens installation program and...


RAX=00007f5c86395290 RBX=00007f5c86b159c8 RCX=00007f5c8690e6a7
RDX=0000000000000001
RSI=0000000000000006 RDI=00007f5c86b159c8 RBP=00007fff8c7aab20
RSP=00007fff8c7aa9a0
R8 =00007f5c86395000 R9 =000000006ffffdff R10=00007f5c86b15a08
R11=0000000000010206
R12=0000000000000002 R13=00007fff8c7aabe8 R14=00007fff8c7aa860
R15=00007fff8c7aa800
RIP=00007f5c86903054 RFL=00010206 [-----P-] CPL=3 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0033 0000000000000000 ffffffff 00affb00 DPL=3 CS64 [-RA]
SS =002b 0000000000000000 ffffffff 00cff300 DPL=3 DS   [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 0000000000000000 00000000 00000000
GS =0000 0000000000000000 00000000 00000000
LDT=0000 0000000000000000 00000000 00008200 DPL=0 LDT
TR =0040 ffff880001812e80 00002087 00008900 DPL=0 TSS64-avl
GDT=     ffff880001804000 0000007f
IDT=     ffffffff815ce000 00000fff
CR0=8005003b CR2=00007f5c86395290 CR3=0000000002ea0000 CR4=000006f0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
DR3=0000000000000000
DR6=0000000000000000 DR7=0000000000000000
Unsupported return value: 0xffffffff


and strange record in dmesg:
kqemu: aborting: Unexpected exception 0x0d in monitor space
err=0000 CS:EIP=f180:00000000f0001f00 SS:SP=0000:00000000f00c9e00
tap0: link state changed to DOWN

When I use -enable-kqemu it works a bit longer than with -kernel-kqemu.



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