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A deadlock can happen from the destination VM of live upgrade or migration due to waiting on paused device worker threads. For example, when a serialization error happens after the `DeviceManager` struct is restored (where all virtio device worker threads are spawned but in paused/parked state), a deadlock will happen from `DeviceManager::drop()`, as it blocks for waiting worker threads to join. This patch ensures that we wake up all device (mostly virtio) worker threads before we block for them to join. Signed-off-by: Bo Chen <chen.bo@intel.com> |
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| .. | ||
| api | ||
| igvm | ||
| acpi.rs | ||
| clone3.rs | ||
| config.rs | ||
| coredump.rs | ||
| cpu.rs | ||
| device_manager.rs | ||
| device_tree.rs | ||
| gdb.rs | ||
| interrupt.rs | ||
| lib.rs | ||
| memory_manager.rs | ||
| migration.rs | ||
| pci_segment.rs | ||
| seccomp_filters.rs | ||
| serial_manager.rs | ||
| sigwinch_listener.rs | ||
| vm_config.rs | ||
| vm.rs | ||