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44a54eb073
This patch fixes some flawed logic around ref counting the libxlMigrationDstArgs object. First, when adding sockets to the event loop with virNetSocketAddIOCallback(), the generic virObjectFreeCallback() was registered as a free function, with libxlMigrationDstArgs as its parameter. A reference was also taken on libxlMigrationDstArgs for each successful call to virNetSocketAddIOCallback(). The rational behind this logic was that the libxlMigrationDstArgs object had to out-live the socket objects. But virNetSocketAddIOCallback() already takes a reference on socket objects, ensuring their life until removed from the event loop and unref'ed in virNetSocketEventFree(). We only need to ensure libxlMigrationDstArgs lives until libxlDoMigrateReceive() finishes, which can be done by simply unref'ing libxlMigrationDstArgs at the end of libxlDoMigrateReceive(). The second flaw was unref'ing the sockets in the failure path of libxlMigrateReceive() and at the end of libxlDoMigrateReceive(). As mentioned above, the sockets are already unref'ed by virNetSocketEventFree() when removed from the event loop. Attempting to unref the socket a second time resulted in a libvirtd crash since the socket was previously unref'ed and disposed. Signed-off-by: Jim Fehlig <jfehlig@suse.com> |
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| .. | ||
| libvirtd_libxl.aug | ||
| libxl_conf.c | ||
| libxl_conf.h | ||
| libxl_domain.c | ||
| libxl_domain.h | ||
| libxl_driver.c | ||
| libxl_driver.h | ||
| libxl_migration.c | ||
| libxl_migration.h | ||
| libxl.conf | ||
| test_libvirtd_libxl.aug.in | ||