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. This operation should not be performed in coroutine context. Changes from v3: - added qemu_bh_delete at the end of BH to free allocated structure. Thanks to Fam. Changes from v2: - subject lines in patches Changes from v1: - fixed spelling. Eric, thank you for spell checking Signed-off-by: Denis V. Lunev <d...@openvz.org> CC: Paolo Bonzini <pbonz...@redhat.com> CC: Juan Quintela <quint...@redhat.com> CC: Amit Shah <amit.s...@redhat.com>
