Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 03/43] perf report: Add s390 diagnosic sampling descriptor size | Date | Thu, 14 Feb 2019 21:44:59 -0300 |
| |
From: Thomas Richter <tmricht@linux.ibm.com>
On IBM z13 machine types 2964 and 2965 the descriptor sizes for sampling and diagnostic sampling entries might be missing in the trailer entry and are set to zero.
This leads to a perf report failure when processing diagnostic sampling entries.
This patch adds missing descriptor sizes when the trailer entry contains zero for these fields.
Output before: [root@s38lp82 perf]# ./perf report --stdio | fgrep Samples 0xabbf0 [0x8]: failed to process type: 68 Error: failed to process sample [root@s38lp82 perf]#
Output after: [root@s38lp82 perf]# ./perf report --stdio | fgrep Samples # Total Lost Samples: 0 # Samples: 3K of event 'SF_CYCLES_BASIC_DIAG' # Samples: 162 of event 'CF_DIAG' [root@s38lp82 perf]#
Fixes: 2b1444f2e28b ("perf report: Add raw report support for s390 auxiliary trace")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Link: http://lkml.kernel.org/r/20190211100627.85714-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/s390-cpumsf.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/tools/perf/util/s390-cpumsf.c b/tools/perf/util/s390-cpumsf.c index d9525d220db1..c215704931dc 100644 --- a/tools/perf/util/s390-cpumsf.c +++ b/tools/perf/util/s390-cpumsf.c @@ -352,6 +352,11 @@ static bool s390_cpumsf_validate(int machine_type, *dsdes = 85; *bsdes = 32; break; + case 2964: + case 2965: + *dsdes = 112; + *bsdes = 32; + break; default: /* Illegal trailer entry */ return false; -- 2.19.1
| |