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tests: Reliably trigger a guest OOM

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Rely on /proc/sysrq-trigger to forcibly trigger an OOM in the guest.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2022-07-25 11:28:29 +02:00
parent 857edc71a9
commit 561791ed22
1 changed files with 2 additions and 4 deletions
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6
tests/integration.rs
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@ -5062,11 +5062,9 @@ mod parallel {
assert!(orig_balloon == 2147483648);
// Two steps to verify if the 'deflate_on_oom' parameter works.
// 1st: run a command in guest to eat up memory heavily, which
// will consume much more memory than $(total_mem - balloon_size)
// to trigger an oom.
// 1st: run a command to trigger an OOM in the guest.
guest
.ssh_command("stress --vm 25 --vm-keep --vm-bytes 1G --timeout 20")
.ssh_command("echo f | sudo tee /proc/sysrq-trigger")
.unwrap();
// Give some time for the OOM to happen in the guest and be reported