Bug importance

• critical: eats your data
• high: crashes the host
• medium: crashes the guest (and most other "normal" bugs)
• low: doesn't crash host or guest, but has undesirable, clearly buggy behavior, or if it does cause crashes, can be worked around
• wishlist: feature requests, everything else lower priority

Debugging procedure

• If it is easily reproducible, try building from upstream git and reproducing. Then bisect
  • [ todo - give example ]
• Try a newer kernel if available
• If KSM is enabled, see whether disabling it helps

Reporting a bug

All reports should contain the following information. Please be sure to attach these files to the bug report.

• uname -a > uname-a.log

• cat /proc/version_signature > proc_version_signature.log

• dmesg > dmesg.log

• cat /proc/cpuinfo > proc_cpuinfo.log

• If your linux guest can't boot, start kvm with  -serial file:kvm_guest_debug.log .

  •  kvm linux_guest.img -serial file:kvm_guset_debug.log 

    And edit grub to boot kernel with  earlycon=ttyS0 console=ttyS0 

     kernel /vmlinuz root=/dev/sda1 earlycon=ttyS0 console=ttyS0 

CategoryServerTeam CategoryBugSquad CategoryDebugging