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Bug#771602: marked as done (qemu-kvm: kernel crash on guest while pegged at 100% cpu)

Your message dated Wed, 28 Apr 2021 18:06:02 +0200
with message-id <E1lbmh4-001LIj-Kv@hullmann.westfalen.local>
and subject line Closing this bug
has caused the Debian Bug report #771602,
regarding qemu-kvm: kernel crash on guest while pegged at 100% cpu
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
771602: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=771602
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: qemu-kvm
Version: 2.1+dfsg-5~bpo70+1
Severity: important

Dear Maintainer,

first off, I am not sure whether this is the right package to report the
bug against. Feel free to re-assign as you see fit.

One of my VMs will not run correctly. Under circumstances which I have
not yet been able to pinpoint, the VM goes to 100% cpu and stops
reacting to about any input. I have to kill it hard (eg. "Force off" in
the virt-manager).

The problem occurred twice today, always under load in the VM. The
second time, it occurred while I tried to install a new kernel package
(see screenshots).

I have opened the console and saw a series of kernel oopsies floating
by. I have attached two screenshots, one from my SSH session, and one
from the console showing the kernel problems.

Here is a list of related packages that I have installed on my host:

$ dpkg -l|grep -E '(qemu|kvm)'
ii  etherboot-qemu                                  5.4.4-9                                all          Bootstrapping for various network adapters (qemu)
ii  ipxe-qemu                                       1.0.0+git-20131111.c3d1e78-2.1~bpo70+1 all          PXE boot firmware - ROM images for qemu
ii  qemu                                            1.1.2+dfsg-6a+deb7u5                   i386         fast processor emulator
ii  qemu-kvm                                        2.1+dfsg-5~bpo70+1                     i386         QEMU Full virtualization on x86 hardware
ii  qemu-slof                                       20131015+dfsg-1~bpo70+1                all          Slimline Open Firmware -- QEMU PowerPC version
ii  qemu-system                                     2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries
ii  qemu-system-arm                                 2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries (arm)
ii  qemu-system-common                              2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries (common files)
ii  qemu-system-mips                                2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries (mips)
ii  qemu-system-misc                                2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries (miscelaneous)
ii  qemu-system-ppc                                 2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries (ppc)
ii  qemu-system-sparc                               2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries (sparc)
ii  qemu-system-x86                                 2.1+dfsg-5~bpo70+1                     i386         QEMU full system emulation binaries (x86)
ii  qemu-user                                       1.1.2+dfsg-6a+deb7u5                   i386         QEMU user mode emulation binaries
ii  qemu-utils                                      2.1+dfsg-5~bpo70+1                     i386         QEMU utilities
$ 


Thank you!


Kind regards,
--Toni++



-- System Information:
Debian Release: 7.7
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.16-0.bpo.3-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages qemu-kvm depends on:
ii  dpkg             1.16.15
ii  qemu-system-x86  2.1+dfsg-5~bpo70+1

qemu-kvm recommends no packages.

qemu-kvm suggests no packages.

-- no debconf information

Attachment: vm-hangs-kernel-crash.png
Description: PNG image

Attachment: vm-crash-what-i-was-doing.png
Description: PNG image


--- End Message ---
--- Begin Message --- 
This bug was filed for a very old kernel. If you can reproduce it with
- the current version in unstable/testing
- the latest kernel from buster.backports
please reopen the bug, see https://www.debian.org/Bugs/server-control

--- End Message ---
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