Commit Graph

3 Commits

Author SHA1 Message Date
Coiby Xu
294c965ca3 selftest: kill VM reliably by recursively kill children processes
qemu is launched in nested subprocess and can't be killed by simply
killing the job ids,

        PID    Command
    2269634    │  ├─ sshd: root [priv]
    2269637    │  │  └─ sshd: root@pts/0
    2269638    │  │     └─ -bash
    2269744    │  │        └─ make test-run V=1
    2273117    │  │           └─ /bin/bash /root/kexec-tools-300/tests/scripts/run-test.sh
    2273712    │  │              ├─ /bin/bash /root/kexec-tools-300/tests/scripts/run-test.sh
    2273714    │  │              │  └─ /bin/bash /root/kexec-tools-300/tests/scripts/run-test.sh
    2273737    │  │              │     └─ timeout --foreground 10m /root/kexec-tools-300/tests/scripts/run-qemu -nodefaults -nographic -smp 2 -m 768M -monitor no
    2273738    │  │              │        └─ /usr/bin/qemu-system-x86_64 -enable-kvm -cpu host -nodefaults -nographic -smp 2 -m 768M -monitor none -serial stdio
    2273746    │  │              │           ├─ /usr/bin/qemu-system-x86_64 -enable-kvm -cpu host -nodefaults -nographic -smp 2 -m 768M -monitor none -serial std
    2273797    │  │              ├─ /bin/bash /root/kexec-tools-300/tests/scripts/run-test.sh
    2273798    │  │              │  └─ /bin/bash /root/kexec-tools-300/tests/scripts/run-test.sh
    2273831    │  │              │     └─ timeout --foreground 10m /root/kexec-tools-300/tests/scripts/run-qemu -nodefaults -nographic -smp 2 -m 768M -monitor no
    2273832    │  │              │        └─ /usr/bin/qemu-system-x86_64 -enable-kvm -cpu host -nodefaults -nographic -smp 2 -m 768M -monitor none -serial stdio
    2273840    │  │              │           ├─ /usr/bin/qemu-system-x86_64 -enable-kvm -cpu host -nodefaults -nographic -smp 2 -m 768M -monitor none -serial std

This led to the error "qemu-system-x86_64: can't bind ip=0.0.0.0 to
socket: Address already in use".

This patch will kill qemu by killing all the children of the job id.

Signed-off-by: Coiby Xu <coxu@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
2021-10-15 19:20:25 +08:00
Coiby Xu
8619f58538 selftest: replace qemu-kvm with one based on dracut's run-qemu
Dracut's run-qemu could find  which virtualization technology to the
user in the order of kvm, kqemu, userspace. Using run-qemu could allow
running tests where qemu-kvm doesn't exist.

Signed-off-by: Coiby Xu <coxu@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
2021-03-24 15:51:02 +08:00
Kairui Song
a8dbd281f7 selftest: Add basic test framework
Now, by execute `make test-run` in tests/, kexec-tools sanity tests
will be performed using VMs. There are currently 3 test cases, for local
kdump, nfs kdump and ssh kdump.

For each test VM, the selftest framework will create a snapshot layer,
do setup as required by the test case, this ensure each test runs in a
clean VM.

This framework will install a custom systemd service that starts when
system have finished booting, and the service will do basic routine
(fetch and set boot counter, etc..), then call the test case which is
installed in /kexec-kdump-test/test.sh in VM.

Each VM will have two serial consoles, one for ordinary console usage,
one for the test communication and log. The test script will watch the
second test console to know the test status.

The test cases are located in tests/scripts/testcases, documents about
the test cases structure will be provided in following commits.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2020-09-17 10:42:54 +08:00