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| author | Bart Van Assche <[email protected]> | 2017-12-05 16:57:53 -0800 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2018-01-08 22:10:27 -0500 |
| commit | 2ee4e9ce594b7c4dae5102fa86ce6339b98a4bc8 (patch) | |
| tree | f38b03780902c661d52417abeebd013aa1842406 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 550203e64c2f4b330211955a1c581b631fd2ebe4 (diff) | |
scsi: scsi-mq-debugfs: Show more information
Show the request result, request timeout and SCSI command flags. This
information is very helpful when trying to figure out why a queue got
stuck. An example of the information that is exported through debugfs:
$ (cd /sys/kernel/debug/block && find -type f -print0 | xargs -0 grep ago)
./sda/hctx0/busy:ffff8804a4523300 {.op=READ, .cmd_flags=FAILFAST_DEV|FAILFAST_TRANSPORT|FAILFAST_DRIVER|RAHEAD, .rq_flags=MQ_INFLIGHT|DONTPREP|IO_STAT|STATS, .atomic_flags=STARTED, .tag=24, .internal_tag=-1, .cmd=Read(10) 28 00 06 80 1c c8 00 00 08 00, .retries=0, .result = 0x0, .flags=TAGGED|INITIALIZED, .timeout=90.000, allocated 0.010 s ago}
Signed-off-by: Bart Van Assche <[email protected]>
Cc: James E.J. Bottomley <[email protected]>
Cc: Martin K. Petersen <[email protected]>
Cc: Ming Lei <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Johannes Thumshirn <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions