mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 09:55:55 +00:00
![]() A memory page poisoned from the hypervisor level is no longer readable. The migration of a VM will crash Qemu when it tries to read the memory address space and stumbles on the poisoned page with a similar stack trace: Program terminated with signal SIGBUS, Bus error. #0 _mm256_loadu_si256 #1 buffer_zero_avx2 #2 select_accel_fn #3 buffer_is_zero #4 save_zero_page #5 ram_save_target_page_legacy #6 ram_save_host_page #7 ram_find_and_save_block #8 ram_save_iterate #9 qemu_savevm_state_iterate #10 migration_iteration_run #11 migration_thread #12 qemu_thread_start To avoid this VM crash during the migration, prevent the migration when a known hardware poison exists on the VM. Signed-off-by: William Roche <william.roche@oracle.com> Link: https://lore.kernel.org/r/20240130190640.139364-2-william.roche@oracle.com Signed-off-by: Peter Xu <peterx@redhat.com> |
||
---|---|---|
.. | ||
hvf | ||
kvm | ||
qtest | ||
stubs | ||
tcg | ||
xen | ||
accel-blocker.c | ||
accel-system.c | ||
accel-system.h | ||
accel-target.c | ||
accel-user.c | ||
dummy-cpus.c | ||
Kconfig | ||
meson.build |