diff options
| author |   Murthy Bhat <Murthy.Bhat@microchip.com> | 2021-03-11 14:15:03 -0600 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2021-04-05 23:02:28 -0400 |
| commit | b622a601a13ae5974c5b0aeecb990c224b8db0d9 (patch) | |
| tree | 682abfe035a47af41621b87bc3550aa2200c45e8 /tools/perf/scripts/python/stackcollapse.py | |
| parent | scsi: smartpqi: Use host-wide tag space (diff) | |
scsi: smartpqi: Correct request leakage during reset operations
While failing queued I/Os in TMF path, there was a request leak and hence
stale entries in request pool with ref count being non-zero. In shutdown
path we have a BUG_ON to catch stuck I/O either in firmware or in the
driver. The stale requests caused a system crash. The I/O request pool
leakage also lead to a significant performance drop.
Link: https://lore.kernel.org/r/161549370379.25025.12793264112620796062.stgit@brunhilda
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions