Re: KVM guest crashes

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Alexander Graf wrote:

[...]
> Also after two days of permanent stress testing I also got the Intel
> machine w/ current git down:
>
> + sudo -u contain1 env -i /usr/local/bin/qemu-system-x86_64 -localtime
> -kernel virtio-kernel -initrd virtio-initrd -nographic -append 'quiet
> clocksource=acpi_pm cifsuser=contain1 cifspass=contain1
> root=cifs://contain1:contain1@xxxxxxxxxx/contain1
> realroot=//172.16.1.1/users/contain1
> ip=172.16.1.2:172.16.1.1::255.255.255.0::eth0:none console=ttyS0
> dhcp=off builder=1' -net nic,model=virtio,macaddr=52:54:00:12:34:1 -net
> tap,ifname=tap1,script=/bin/true -m 2000 -nographic -smp 8 /dev/null
> qemu: loading initrd (0x1daf359 bytes) at 0x000000007b240000
> Stuck ??
>
> No backtrace here though. That's all I got from the serial console.
>   

+ sudo -u contain1 env -i /usr/local/bin/qemu-system-x86_64 -localtime
-kernel virtio-kernel -initrd virtio-initrd -nographic -append 'quiet
clocksource=acpi_pm cifsuser=contain1 cifspass=contain1
root=cifs://contain1:contain1@xxxxxxxxxx/contain1
realroot=//172.16.1.1/users/contain1
ip=172.16.1.2:172.16.1.1::255.255.255.0::eth0:none console=ttyS0
dhcp=off builder=1' -net nic,model=virtio,macaddr=52:54:00:12:34:1 -net
tap,ifname=tap1,script=/bin/true -m 2000 -nographic -smp 8 /dev/null
qemu: loading initrd (0x1daf359 bytes) at 0x000000007b240000
Stuck ??

(qemu) info cpus
* CPU #0: pc=0xffffffff80221f1d thread_id=15211
  CPU #1: pc=0xffffffff80221f1d thread_id=15212
  CPU #2: pc=0xffffffff80221f1d thread_id=15213
  CPU #3: pc=0xffffffff80221f1d thread_id=15214
  CPU #4: pc=0xffffffff8049f7d0 thread_id=15215
  CPU #5: pc=0xffffffff80221f1d thread_id=15216
  CPU #6: pc=0xffffffff80221f1d thread_id=15217
  CPU #7: pc=0x000000000009f02c thread_id=15218

(qemu) cpu 7
(qemu) info registers
EAX=00000c06 EBX=000005b8 ECX=00000000 EDX=00000000
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000002c EFL=00033002 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0
ES =0000 00000000 0000ffff 0000f300
CS =9f00 0009f000 0000ffff 0000f300
SS =0000 00000000 0000ffff 0000f300
DS =0000 00000000 0000ffff 0000f300
FS =0000 00000000 0000ffff 0000f300
GS =0000 00000000 0000ffff 0000f300
LDT=0000 00000000 0000ffff 00008200
TR =0000 fffbd000 00002088 00008b00
GDT=     00000000 0000ffff
IDT=     00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
DR6=ffff0ff0 DR7=00000400
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00000000
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
XMM00=00000000000000000000000000000000
XMM01=00000000000000000000000000000000
XMM02=00000000000000000000000000000000
XMM03=00000000000000000000000000000000
XMM04=00000000000000000000000000000000
XMM05=00000000000000000000000000000000
XMM06=00000000000000000000000000000000
XMM07=00000000000000000000000000000000

Is that guest really seriously in BIOS code? After booting Linux?

(qemu) x /2i $pc-1
0x000000000009f02b:  hlt   
0x000000000009f02c:  jmp    0x9f02b

Where is this? Looks like panic code to me.

Alex
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