QEMU 7.2 non-deterministic migration-test CI failure

[Stefan Hajnoczi]

Hi,
The following cross-i386-tci migration-test failure was triggered by CI:

>>> MALLOC_PERTURB_=133 
>>> G_TEST_DBUS_DAEMON=/builds/qemu-project/qemu/tests/dbus-vmstate-daemon.sh 
>>> QTEST_QEMU_BINARY=./qemu-system-i386 
>>> /builds/qemu-project/qemu/build/tests/qtest/migration-test --tap -k
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stderr:
Could not access KVM kernel module: No such file or directory
Could not access KVM kernel module: No such file or directory
Could not access KVM kernel module: No such file or directory
Could not access KVM kernel module: No such file or directory
qemu-system-i386: Unknown savevm section type 126
../tests/qtest/libqtest.c:188: kill_qemu() detected QEMU death from signal 11 
(Segmentation fault) (core dumped)
TAP parsing error: Too few tests run (expected 14, got 2)
(test program exited with status code -6)
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https://gitlab.com/qemu-project/qemu/-/jobs/3397205431

When I retried the test succeeded. I haven't managed to reproduce it
locally yet either.

Any ideas?

Stefan

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