[Bug 1877526] Re: KVM internal crash

[Thomas Huth]

RHEL 6.6 and qemu-kvm 0.12 are *very* old, can't you update the machine
to a newer version? At least RHEL 6.10, or even better RHEL 7 or 8?

** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1877526

Title:
  KVM internal crash

Status in QEMU:
  Incomplete

Bug description:
  Hi,
  I am new to this. (apologies if I miss something)

  I see the following error on my host mc when I run an application on
  my QEMU based VM running ubuntu linux:

  Code=4d 39 c8 7f 64 0f 1f 40 00 4d 8d 40 80 49 81 f8 80 00 00 00 <66> 0f 7f 
07 66 0f 7f 47 10 66 0f 7f 47 20 66 0f 7f 47 30
  66 0f 7f 47 40 66 0f 7f 47 50 66
  KVM internal error. Suberror: 1
  emulation failure
  RAX=00007fffeb85a000 RBX=00000000069ee400 RCX=0000000000000000 
RDX=0000000000000000
  RSI=0000000000000000 RDI=00007fffeb85a000 RBP=00007fffffff9570 
RSP=00007fffffff9548
  R8 =0000000000000f80 R9 =0000000001000000 R10=0000000000000000 
R11=0000003694e83f3a
  R12=0000000000000000 R13=0000000000000000 R14=0000000000000000 
R15=0000000006b75350
  RIP=0000003694e8443b RFL=00010206 [-----P-] CPL=3 II=0 A20=1 SMM=0 HLT=0
  ES =0000 0000000000000000 ffffffff 00000000
  CS =0033 0000000000000000 ffffffff 00a0fb00 DPL=3 CS64 [-RA]
  SS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS   [-WA]
  DS =0000 0000000000000000 ffffffff 00000000
  FS =0000 00007ffff45b5720 ffffffff 00000000
  GS =0000 0000000000000000 ffffffff 00000000
  LDT=0000 0000000000000000 ffffffff 00000000
  TR =0040 ffff88047fd13140 00002087 00008b00 DPL=0 TSS64-busy
  GDT=   ffff88047fd04000 0000007f
  IDT=   ffffffffff57c000 00000fff
  CR0=80050033 CR2=00007ffff7ff4000 CR3=000000046cb38000 CR4=000006e0
  DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 
DR3=0000000000000000
  DR6=00000000ffff0ff0 DR7=0000000000000400
  EFER=0000000000000d01

  This occurs with qemu-kvm version(host m/c has RHEL 6.6) :
  Name        : qemu-kvm
  Arch        : x86_64
  Epoch       : 2
  Version     : 0.12.1.2
  Release     : 2.506.el6_10.7

  I have another m/c with RHEL 7.5, and the same test case passes with the 
1.5.3 version.
  yum info qemu-kvm
  Name        : qemu-kvm
  Arch        : x86_64
  Epoch       : 10
  Version     : 1.5.3

  How do I investigate this?
  I would need to patch up the qemu-kvm on the host to get this fixed, I think.

  Please let me know if I need to provide more info, (and what?)

  Regards,
  Prashant

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