On Sat, Dec 22, 2007 at 09:59:43PM +0200, Avi Kivity wrote: > Guido Guenther wrote: > > Hi, > > I got the Oops below on an Dual CPU Dual-Core AMD Opteron(tm) Processor > > 2220 running a 32bit kernel. Kernel is 2.6.23.11, kvm version 57. > > Doesn't happen all the time but usually right at VM startup. Seems to be > > easier to trigger when starting up several VMs in row. > > What guest are you running? smp or uni? Uniprocessor Linux, standard etch 2.6.18 kernel.
kvm commandline was: -M pc -m 512 -smp 1 -monitor pty -boot c -hda /dev/mapper/foo -hdb /dev/mapper/bar -net nic,macaddr=54:52:00:1b:9b:10,vlan=0 -net tap,fd=11,script=,vlan=0 -usb -usbdevice tablet -vnc 127.0.0.1:0 > > Call Trace: > > [<f8d498d8>] pic_update_irq+0x68/0x80 [kvm] > > [<f8d49f8e>] kvm_pic_read_irq+0x6e/0xe0 [kvm] > > > > Please do > > gdb /path/to/kvm.ko > disassemble pic_update_irq > > and post the results. If you recompiled the module since getting the > oops, please generate a fresh oops. (gdb) disassemble pic_update_irq Dump of assembler code for function pic_update_irq: 0x0000d870 <pic_update_irq+0>: push %ebx 0x0000d871 <pic_update_irq+1>: mov %eax,%ebx 0x0000d873 <pic_update_irq+3>: lea 0x14(%eax),%eax 0x0000d876 <pic_update_irq+6>: call 0xd7a0 <pic_get_irq> 0x0000d87b <pic_update_irq+11>: test %eax,%eax 0x0000d87d <pic_update_irq+13>: js 0xd899 <pic_update_irq+41> 0x0000d87f <pic_update_irq+15>: testb $0x4,0xe(%ebx) 0x0000d883 <pic_update_irq+19>: je 0xd8b1 <pic_update_irq+65> 0x0000d885 <pic_update_irq+21>: orb $0x4,0x1(%ebx) 0x0000d889 <pic_update_irq+25>: orb $0x4,(%ebx) 0x0000d88c <pic_update_irq+28>: testb $0x4,0xe(%ebx) 0x0000d890 <pic_update_irq+32>: je 0xd8c2 <pic_update_irq+82> 0x0000d892 <pic_update_irq+34>: andb $0xfb,0x1(%ebx) 0x0000d896 <pic_update_irq+38>: andb $0xfb,(%ebx) 0x0000d899 <pic_update_irq+41>: mov %ebx,%eax 0x0000d89b <pic_update_irq+43>: call 0xd7a0 <pic_get_irq> 0x0000d8a0 <pic_update_irq+48>: test %eax,%eax 0x0000d8a2 <pic_update_irq+50>: js 0xd8d0 <pic_update_irq+96> 0x0000d8a4 <pic_update_irq+52>: mov 0x2c(%ebx),%eax 0x0000d8a7 <pic_update_irq+55>: mov $0x1,%edx 0x0000d8ac <pic_update_irq+60>: call *0x28(%ebx) 0x0000d8af <pic_update_irq+63>: pop %ebx 0x0000d8b0 <pic_update_irq+64>: ret 0x0000d8b1 <pic_update_irq+65>: testb $0x4,(%ebx) 0x0000d8b4 <pic_update_irq+68>: je 0xd8e0 <pic_update_irq+112> 0x0000d8b6 <pic_update_irq+70>: orb $0x4,(%ebx) 0x0000d8b9 <pic_update_irq+73>: testb $0x4,0xe(%ebx) 0x0000d8bd <pic_update_irq+77>: lea 0x0(%esi),%esi 0x0000d8c0 <pic_update_irq+80>: jne 0xd892 <pic_update_irq+34> 0x0000d8c2 <pic_update_irq+82>: andb $0xfb,(%ebx) 0x0000d8c5 <pic_update_irq+85>: mov %ebx,%eax 0x0000d8c7 <pic_update_irq+87>: call 0xd7a0 <pic_get_irq> 0x0000d8cc <pic_update_irq+92>: test %eax,%eax 0x0000d8ce <pic_update_irq+94>: jns 0xd8a4 <pic_update_irq+52> 0x0000d8d0 <pic_update_irq+96>: mov 0x2c(%ebx),%eax 0x0000d8d3 <pic_update_irq+99>: xor %edx,%edx 0x0000d8d5 <pic_update_irq+101>: call *0x28(%ebx) 0x0000d8d8 <pic_update_irq+104>: pop %ebx 0x0000d8d9 <pic_update_irq+105>: ret 0x0000d8da <pic_update_irq+106>: lea 0x0(%esi),%esi 0x0000d8e0 <pic_update_irq+112>: orb $0x4,0x1(%ebx) 0x0000d8e4 <pic_update_irq+116>: orb $0x4,(%ebx) 0x0000d8e7 <pic_update_irq+119>: jmp 0xd8b9 <pic_update_irq+73> 0x0000d8e9 <pic_update_irq+121>: lea 0x0(%esi),%esi End of assembler dump. Cheers, -- Guido ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
