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| author | Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2024-04-02 13:49:29 +0300 |
|---|---|---|
| committer | Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2024-04-08 11:55:01 +0300 |
| commit | fd7726e75968b27fe98534ccbf47ccd6fef686f3 (patch) | |
| tree | 68909dade4128ac7303df2f6f3008d7e41b5453e /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 0d298e23292b7a5b58c5589fe33b96e95363214f (diff) | |
| download | linux-fd7726e75968b27fe98534ccbf47ccd6fef686f3.tar.xz | |
accel/ivpu: Fix deadlock in context_xa
ivpu_device->context_xa is locked both in kernel thread and IRQ context.
It requires XA_FLAGS_LOCK_IRQ flag to be passed during initialization
otherwise the lock could be acquired from a thread and interrupted by
an IRQ that locks it for the second time causing the deadlock.
This deadlock was reported by lockdep and observed in internal tests.
Fixes: 35b137630f08 ("accel/ivpu: Introduce a new DRM driver for Intel VPU")
Cc: <stable@vger.kernel.org> # v6.3+
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-9-jacek.lawrynowicz@linux.intel.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions