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| author | mav <mav@FreeBSD.org> | 2016-04-08 10:00:07 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2016-04-08 10:00:07 +0000 |
| commit | aec435c55ba7f73ef240a58e915af9bf4aea94d5 (patch) | |
| tree | 8e56a45dbbcecd676046b0884a18debe7e483f18 | |
| parent | dde534d3bd02be99a712ceaf8f926071d22a4d15 (diff) | |
| download | FreeBSD-src-aec435c55ba7f73ef240a58e915af9bf4aea94d5.zip FreeBSD-src-aec435c55ba7f73ef240a58e915af9bf4aea94d5.tar.gz | |
MFC r266615: Increase taskqueue thread priority from idle to PRIBIO.
Idle priority is not even time-share, so if system is busy in any way,
those events may never be executed. Since in some cases system waits
for events processed by that thread, that may cause deadlocks.
| -rw-r--r-- | sys/dev/mpr/mpr_sas.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/sys/dev/mpr/mpr_sas.c b/sys/dev/mpr/mpr_sas.c index 28870f6..eac3360 100644 --- a/sys/dev/mpr/mpr_sas.c +++ b/sys/dev/mpr/mpr_sas.c @@ -769,9 +769,7 @@ mpr_attach_sas(struct mpr_softc *sc) TASK_INIT(&sassc->ev_task, 0, mprsas_firmware_event_work, sc); sassc->ev_tq = taskqueue_create("mpr_taskq", M_NOWAIT | M_ZERO, taskqueue_thread_enqueue, &sassc->ev_tq); - - /* Run the task queue with lowest priority */ - taskqueue_start_threads(&sassc->ev_tq, 1, 255, "%s taskq", + taskqueue_start_threads(&sassc->ev_tq, 1, PRIBIO, "%s taskq", device_get_nameunit(sc->mpr_dev)); mpr_lock(sc); |
