diff options
| author | Steffen Maier <[email protected]> | 2018-05-17 19:14:43 +0200 |
|---|---|---|
| committer | Martin K. Petersen <[email protected]> | 2018-05-18 11:22:10 -0400 |
| commit | df30781699f53e4fd4c494c6f7dd16e3d5c21d30 (patch) | |
| tree | ce66a5ca73f33aafe1309dccb81dea2b7370c1e1 /tools/perf/scripts/python/syscall-counts.py | |
| parent | cd43c221bb5eb5a6400a62ae44a9979c8fc6c87e (diff) | |
scsi: zfcp: fix missing SCSI trace for result of eh_host_reset_handler
For problem determination we need to see whether and why we were successful
or not. This allows deduction of scsi_eh escalation.
Example trace record formatted with zfcpdbf from s390-tools:
Timestamp : ...
Area : SCSI
Subarea : 00
Level : 1
Exception : -
CPU ID : ..
Caller : 0x...
Record ID : 1
Tag : schrh_r SCSI host reset handler result
Request ID : 0x0000000000000000 none (invalid)
SCSI ID : 0xffffffff none (invalid)
SCSI LUN : 0xffffffff none (invalid)
SCSI LUN high : 0xffffffff none (invalid)
SCSI result : 0x00002002 field re-used for midlayer value: SUCCESS
or in other cases: 0x2009 == FAST_IO_FAIL
SCSI retries : 0xff none (invalid)
SCSI allowed : 0xff none (invalid)
SCSI scribble : 0xffffffffffffffff none (invalid)
SCSI opcode : ffffffff ffffffff ffffffff ffffffff none (invalid)
FCP rsp inf cod: 0xff none (invalid)
FCP rsp IU : 00000000 00000000 00000000 00000000 none (invalid)
00000000 00000000
v2.6.35 commit a1dbfddd02d2 ("[SCSI] zfcp: Pass return code from
fc_block_scsi_eh to scsi eh") introduced the first return with something
other than the previously hardcoded single SUCCESS return path.
Signed-off-by: Steffen Maier <[email protected]>
Fixes: a1dbfddd02d2 ("[SCSI] zfcp: Pass return code from fc_block_scsi_eh to scsi eh")
Cc: <[email protected]> #2.6.38+
Reviewed-by: Jens Remus <[email protected]>
Reviewed-by: Benjamin Block <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions