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| author | Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> | 2023-03-31 19:06:34 +0300 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2023-04-03 20:03:50 +0300 |
| commit | 35bdafda40cc343ad2ba2cce105eba03a70241cc (patch) | |
| tree | baaf3c7a1283bc2b15189fe9181fe17fb6c6220c /tools/perf/scripts/python/stackcollapse.py | |
| parent | 8666071391f473bfb1c0935576e3bf9c94b04f4e (diff) | |
| download | linux-35bdafda40cc343ad2ba2cce105eba03a70241cc.tar.xz | |
remoteproc: stm32_rproc: Add mutex protection for workqueue
The workqueue may execute late even after remoteproc is stopped or
stopping, some resources (rpmsg device and endpoint) have been
released in rproc_stop_subdevices(), then rproc_vq_interrupt()
accessing these resources will cause kernel dump.
Call trace:
virtqueue_add_inbuf
virtqueue_add_inbuf
rpmsg_recv_single
rpmsg_recv_done
vring_interrupt
stm32_rproc_mb_vq_work
process_one_work
worker_thread
kthread
Suggested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20230331160634.3113031-1-arnaud.pouliquen@foss.st.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions