Re: [SeaBIOS] [Qemu-devel] Emulation failure on booting/rebooting VMs
On Wed, Mar 18, 2015 at 06:36:48PM +0100, Mohammed Gamal wrote:
Hi, I've been sporadically getting my KVM virtual machines crashing with this message while they're booting
KVM internal error. Suberror: 1 emulation failure EAX=00000000 EBX=00000000 ECX=00000000 EDX=00600f12 ESI=00000000 EDI=00000000 EBP=00000000 ESP=0000fffa EIP=0000ff53 EFL=00000006 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 00000000 0000ffff 00009300 CS =f000 000f0000 0000ffff 00009b00 SS =0000 00000000 0000ffff 00009200 DS =0000 00000000 0000ffff 00009300 FS =0000 00000000 0000ffff 00009300 GS =0000 00000000 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008300 GDT= 00000000 0000ffff IDT= 00000000 0000ffff CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 Code=74 65 61 6d 2e 00 66 68 5f 55 00 00 e9 c3 f8 fb f4 cb 66 c3 <cf> 66 68 ff e6 00 00 e9 8b b1 66 55 66 57 66 56 66 53 66 89 c1 66 89 d6 a8 07 75 23 66 0f
I am running qemu 1.2, seabios 1.7.3 and ipxe (1.0.0-f6840ba) and the host CPU is AMD Opteron 6386 SE running kernel 3.4.71.
To debug seabios issues, we need the full log - see: http://www.seabios.org/Debugging But, your software versions are a bit old which makes diagnosing any issues hard. I suggest updating to the latest software and seeing if the problem is still present. -Kevin
On Wed, Mar 18, 2015 at 7:09 PM, Kevin O'Connor <kevin@koconnor.net> wrote:
On Wed, Mar 18, 2015 at 06:36:48PM +0100, Mohammed Gamal wrote:
Hi, I've been sporadically getting my KVM virtual machines crashing with this message while they're booting
KVM internal error. Suberror: 1 emulation failure EAX=00000000 EBX=00000000 ECX=00000000 EDX=00600f12 ESI=00000000 EDI=00000000 EBP=00000000 ESP=0000fffa EIP=0000ff53 EFL=00000006 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 00000000 0000ffff 00009300 CS =f000 000f0000 0000ffff 00009b00 SS =0000 00000000 0000ffff 00009200 DS =0000 00000000 0000ffff 00009300 FS =0000 00000000 0000ffff 00009300 GS =0000 00000000 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008300 GDT= 00000000 0000ffff IDT= 00000000 0000ffff CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 Code=74 65 61 6d 2e 00 66 68 5f 55 00 00 e9 c3 f8 fb f4 cb 66 c3 <cf> 66 68 ff e6 00 00 e9 8b b1 66 55 66 57 66 56 66 53 66 89 c1 66 89 d6 a8 07 75 23 66 0f
I am running qemu 1.2, seabios 1.7.3 and ipxe (1.0.0-f6840ba) and the host CPU is AMD Opteron 6386 SE running kernel 3.4.71.
To debug seabios issues, we need the full log - see: http://www.seabios.org/Debugging
But, your software versions are a bit old which makes diagnosing any issues hard. I suggest updating to the latest software and seeing if the problem is still present.
-Kevin
Unfortunately I can't change that setup. The problem is also rather sporadic so I have no other means to reproduce it and debug it. I tried looking into the seabios code but it looks like the instruction pointer is pointing at the default interrupt vector table entry 'entry_iret_official'. I presume this means that was triggered with an interrupt of some sort? The other register values don't seem to provide any clues nevertheless.
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Kevin O'Connor -
Mohammed Gamal