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ea6a55bcc0
There is a possibility to hit an assert in qcow2_get_specific_info that s->qcow_version is undefined. This happens when VM in starting from suspended state, i.e. it processes incoming migration, and in the same time 'info block' is called. The problem is that qcow2_invalidate_cache() closes the image and memset()s BDRVQcowState in the middle. The patch moves processing of bdrv_invalidate_cache_all out of coroutine context for postcopy migration to avoid that. This function is called with the following stack: process_incoming_migration_co qemu_loadvm_state qemu_loadvm_state_main loadvm_process_command loadvm_postcopy_handle_run Signed-off-by: Denis V. Lunev <den@openvz.org> Tested-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Juan Quintela <quintela@redhat.com> CC: Amit Shah <amit.shah@redhat.com> Message-Id: <1456304019-10507-3-git-send-email-den@openvz.org> Signed-off-by: Amit Shah <amit.shah@redhat.com> |
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| .. | ||
| block.c | ||
| exec.c | ||
| fd.c | ||
| Makefile.objs | ||
| migration.c | ||
| postcopy-ram.c | ||
| qemu-file-buf.c | ||
| qemu-file-internal.h | ||
| qemu-file-stdio.c | ||
| qemu-file-unix.c | ||
| qemu-file.c | ||
| ram.c | ||
| rdma.c | ||
| savevm.c | ||
| tcp.c | ||
| unix.c | ||
| vmstate.c | ||
| xbzrle.c | ||