mirror of https://gitee.com/openkylin/qemu.git
a67b996e78
The QMP dispatcher coroutine holds the qmp_queue_lock over a yield point, where it expects to be rescheduled from the main context. If a CHR_EVENT_CLOSED event is received just then, it can race and block the main thread on the mutex in monitor_qmp_cleanup_queue_and_resume. monitor_resume does not need to be called from main context, so we can call it immediately after popping a request from the queue, which allows us to drop the qmp_queue_lock mutex before yielding. Suggested-by: Wolfgang Bumiller <w.bumiller@proxmox.com> Signed-off-by: Stefan Reiter <s.reiter@proxmox.com> Message-Id: <20210322154024.15011-1-s.reiter@proxmox.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Cc: qemu-stable@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> |
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| .. | ||
| hmp-cmds.c | ||
| hmp.c | ||
| meson.build | ||
| misc.c | ||
| monitor-internal.h | ||
| monitor.c | ||
| qmp-cmds-control.c | ||
| qmp-cmds.c | ||
| qmp.c | ||
| trace-events | ||
| trace.h | ||