Red Hat Bugzilla – Bug 585951
A process using kvm can enter a non-killable state
Last modified: 2010-05-04 03:38:59 EDT
Description of problem:
While running one of the qemu-kvm unit test (called access), the qemu process
gets to a state that it cannot be killed. When killed, the process get's zombied
but continue to consume resources.
Version-Release number of selected component (if applicable):
Consistently, every time.
Steps to Reproduce:
1. qemu-kvm -kernel access.flat (the attached test-case)
This test-case was/can be built from qemu-kvm unit tests.
clone an upstream qemu-kvm git repo, go to its subdir kvm/user and type make
test-cases are created in test/x86 subdir, including access.flat
Intended test runs with following parameters to produce output:
"-kernel access.flat -device testdev,chardev=testlog -chardev file,id=testlog,path=access.log", where access.log is an example of an output file
2. wait about 5 minutes
Actually, the test-case runs lots of sub-test-cases until it reaches the problematic sub-test-case that causes this problem. You can follow the output to see when it's stuck.
3. try to kill qemu-kvm process
qemu-kvm process keeps running
qemu-kvm process killed and disappear
Created attachment 409187 [details]
test-case for the bug
*** This bug has been marked as a duplicate of bug 588251 ***