* "Test object code reading" failing, debug messages don't help @ 2013-11-11 19:51 Arnaldo Carvalho de Melo 2013-11-11 19:55 ` Arnaldo Carvalho de Melo 0 siblings, 1 reply; 5+ messages in thread From: Arnaldo Carvalho de Melo @ 2013-11-11 19:51 UTC (permalink / raw) To: Adrian Hunter Cc: David Ahern, Frederic Weisbecker, Jiri Olsa, Mike Galbraith, Paul Mackerras, Namhyung Kim, Peter Zijlstra, Stephane Eranian, linux-kernel Hi Adrian, I have perf test failing here: [root@ssdandy ~]# perf test 21 21: Test object code reading : FAILED! [root@ssdandy ~]# Try it with -v, but all messages, except for that elf header, which I assume is for a previous entry that is not suitable and should not be considered, seems to say all is well, except that the test fails :-\ [root@ssdandy ~]# perf test -v 21 21: Test object code reading : --- start --- Looking at the vmlinux_path (6 entries long) symsrc__init: cannot get elf header. Using /lib/modules/3.12.0-rc6+/build/vmlinux for symbols Parsing event 'cycles' mmap size 528384B Reading object code for memory address: 0xffffffff8101d2ad File is: /lib/modules/3.12.0-rc6+/build/vmlinux On file address is: 0x21d2ad Objdump command is: objdump -d --start-address=0xffffffff8101d2ad --stop-address=0xffffffff8101d32d /lib/modules/3.12.0-rc6+/build/vmlinux Bytes read match those read by objdump Reading object code for memory address: 0xffffffff8101d2ad File is: /lib/modules/3.12.0-rc6+/build/vmlinux On file address is: 0x21d2ad Objdump command is: objdump -d --start-address=0xffffffff8101d2ad --stop-address=0xffffffff8101d32d /lib/modules/3.12.0-rc6+/build/vmlinux Bytes read match those read by objdump Reading object code for memory address: 0xffffffff8101d2ad File is: /lib/modules/3.12.0-rc6+/build/vmlinux On file address is: 0x21d2ad Objdump command is: objdump -d --start-address=0xffffffff8101d2ad --stop-address=0xffffffff8101d32d /lib/modules/3.12.0-rc6+/build/vmlinux Bytes read match those read by objdump Reading object code for memory address: 0xffffffff8101d2ad File is: /lib/modules/3.12.0-rc6+/build/vmlinux On file address is: 0x21d2ad Objdump command is: objdump -d --start-address=0xffffffff8101d2ad --stop-address=0xffffffff8101d32d /lib/modules/3.12.0-rc6+/build/vmlinux Bytes read match those read by objdump Reading object code for memory address: 0xffffffff8101d2ad File is: /lib/modules/3.12.0-rc6+/build/vmlinux On file address is: 0x21d2ad Objdump command is: objdump -d --start-address=0xffffffff8101d2ad --stop-address=0xffffffff8101d32d /lib/modules/3.12.0-rc6+/build/vmlinux Bytes read match those read by objdump Reading object code for memory address: 0xffffffff81124ae5 File is: /lib/modules/3.12.0-rc6+/build/vmlinux On file address is: 0x324ae5 Objdump command is: objdump -d --start-address=0xffffffff81124ae5 --stop-address=0xffffffff81124b65 /lib/modules/3.12.0-rc6+/build/vmlinux Bytes read match those read by objdump ---- end ---- Test object code reading: FAILED! [root@ssdandy ~]# Can you try this on acme/perf/core? And improve the debug messages, if possible? - Arnaldo ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: "Test object code reading" failing, debug messages don't help 2013-11-11 19:51 "Test object code reading" failing, debug messages don't help Arnaldo Carvalho de Melo @ 2013-11-11 19:55 ` Arnaldo Carvalho de Melo 2013-11-11 19:58 ` Arnaldo Carvalho de Melo 0 siblings, 1 reply; 5+ messages in thread From: Arnaldo Carvalho de Melo @ 2013-11-11 19:55 UTC (permalink / raw) To: Adrian Hunter Cc: David Ahern, Frederic Weisbecker, Jiri Olsa, Mike Galbraith, Paul Mackerras, Namhyung Kim, Peter Zijlstra, Stephane Eranian, linux-kernel Em Mon, Nov 11, 2013 at 04:51:17PM -0300, Arnaldo Carvalho de Melo escreveu: > Hi Adrian, > > I have perf test failing here: > > [root@ssdandy ~]# perf test 21 > 21: Test object code reading : FAILED! > [root@ssdandy ~]# > > Try it with -v, but all messages, except for that elf header, which I > assume is for a previous entry that is not suitable and should not be > considered, seems to say all is well, except that the test fails :-\ If I try gdb on test__code_reading, go on stepping thru it to try to figure out why it fails, it works :-\ - Arnaldo ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: "Test object code reading" failing, debug messages don't help 2013-11-11 19:55 ` Arnaldo Carvalho de Melo @ 2013-11-11 19:58 ` Arnaldo Carvalho de Melo 2013-11-12 7:59 ` Adrian Hunter 0 siblings, 1 reply; 5+ messages in thread From: Arnaldo Carvalho de Melo @ 2013-11-11 19:58 UTC (permalink / raw) To: Adrian Hunter Cc: David Ahern, Frederic Weisbecker, Jiri Olsa, Mike Galbraith, Paul Mackerras, Namhyung Kim, Peter Zijlstra, Stephane Eranian, linux-kernel Em Mon, Nov 11, 2013 at 04:55:59PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Mon, Nov 11, 2013 at 04:51:17PM -0300, Arnaldo Carvalho de Melo escreveu: > > Hi Adrian, > > > > I have perf test failing here: > > > > [root@ssdandy ~]# perf test 21 > > 21: Test object code reading : FAILED! > > [root@ssdandy ~]# > > > > Try it with -v, but all messages, except for that elf header, which I > > assume is for a previous entry that is not suitable and should not be > > considered, seems to say all is well, except that the test fails :-\ > > If I try gdb on test__code_reading, go on stepping thru it to try to > figure out why it fails, it works :-\ Why this is so is still unclear, but since the other problem I had was due to the kernel reducing the max sample_freq, I tried: [root@ssdandy ~]# echo 10000 > /proc/sys/kernel/perf_event_max_sample_rate [root@ssdandy ~]# perf test 21 21: Test object code reading : Ok [root@ssdandy ~]# echo 7000 > /proc/sys/kernel/perf_event_max_sample_rate [root@ssdandy ~]# perf test 21 21: Test object code reading : FAILED! [root@ssdandy ~]# Checking where in this test the sample_freq is set... - Arnaldo ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: "Test object code reading" failing, debug messages don't help 2013-11-11 19:58 ` Arnaldo Carvalho de Melo @ 2013-11-12 7:59 ` Adrian Hunter 2013-11-12 21:57 ` [tip:perf/urgent] perf tests: Handle throttle events in ' object code reading' test tip-bot for Adrian Hunter 0 siblings, 1 reply; 5+ messages in thread From: Adrian Hunter @ 2013-11-12 7:59 UTC (permalink / raw) To: Arnaldo Carvalho de Melo Cc: David Ahern, Frederic Weisbecker, Jiri Olsa, Mike Galbraith, Paul Mackerras, Namhyung Kim, Peter Zijlstra, Stephane Eranian, linux-kernel On 11/11/13 21:58, Arnaldo Carvalho de Melo wrote: > Em Mon, Nov 11, 2013 at 04:55:59PM -0300, Arnaldo Carvalho de Melo escreveu: >> Em Mon, Nov 11, 2013 at 04:51:17PM -0300, Arnaldo Carvalho de Melo escreveu: >>> Hi Adrian, >>> >>> I have perf test failing here: >>> >>> [root@ssdandy ~]# perf test 21 >>> 21: Test object code reading : FAILED! >>> [root@ssdandy ~]# >>> >>> Try it with -v, but all messages, except for that elf header, which I >>> assume is for a previous entry that is not suitable and should not be >>> considered, seems to say all is well, except that the test fails :-\ >> >> If I try gdb on test__code_reading, go on stepping thru it to try to >> figure out why it fails, it works :-\ > > Why this is so is still unclear, but since the other problem I had was > due to the kernel reducing the max sample_freq, I tried: > > [root@ssdandy ~]# echo 10000 > /proc/sys/kernel/perf_event_max_sample_rate > [root@ssdandy ~]# perf test 21 > 21: Test object code reading : Ok > [root@ssdandy ~]# echo 7000 > /proc/sys/kernel/perf_event_max_sample_rate > [root@ssdandy ~]# perf test 21 > 21: Test object code reading : FAILED! > [root@ssdandy ~]# From: Adrian Hunter <adrian.hunter@intel.com> Subject: [PATCH] perf tests: Handle throttle events in 'object code reading' test Unhandled events cause an error that fails the test Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- tools/perf/tests/code-reading.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c index 6d9dc19..85d4919 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -275,8 +275,19 @@ static int process_event(struct machine *machine, struct perf_evlist *evlist, if (event->header.type == PERF_RECORD_SAMPLE) return process_sample_event(machine, evlist, event, state); - if (event->header.type < PERF_RECORD_MAX) - return machine__process_event(machine, event, NULL); + if (event->header.type == PERF_RECORD_THROTTLE || + event->header.type == PERF_RECORD_UNTHROTTLE) + return 0; + + if (event->header.type < PERF_RECORD_MAX) { + int ret; + + ret = machine__process_event(machine, event, NULL); + if (ret < 0) + pr_debug("machine__process_event failed, event type %u\n", + event->header.type); + return ret; + } return 0; } -- 1.7.11.7 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* [tip:perf/urgent] perf tests: Handle throttle events in ' object code reading' test 2013-11-12 7:59 ` Adrian Hunter @ 2013-11-12 21:57 ` tip-bot for Adrian Hunter 0 siblings, 0 replies; 5+ messages in thread From: tip-bot for Adrian Hunter @ 2013-11-12 21:57 UTC (permalink / raw) To: linux-tip-commits Cc: acme, linux-kernel, eranian, paulus, hpa, mingo, peterz, efault, acme, namhyung, jolsa, fweisbec, adrian.hunter, dsahern, tglx Commit-ID: 48095b721ca54ffa70427185c00473530f4aef06 Gitweb: http://git.kernel.org/tip/48095b721ca54ffa70427185c00473530f4aef06 Author: Adrian Hunter <adrian.hunter@intel.com> AuthorDate: Tue, 12 Nov 2013 09:59:33 +0200 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Tue, 12 Nov 2013 16:37:54 -0300 perf tests: Handle throttle events in 'object code reading' test Unhandled events cause an error that fails the test, fix it. Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/5281DFE5.3000909@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/tests/code-reading.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c index 6d9dc19..85d4919 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -275,8 +275,19 @@ static int process_event(struct machine *machine, struct perf_evlist *evlist, if (event->header.type == PERF_RECORD_SAMPLE) return process_sample_event(machine, evlist, event, state); - if (event->header.type < PERF_RECORD_MAX) - return machine__process_event(machine, event, NULL); + if (event->header.type == PERF_RECORD_THROTTLE || + event->header.type == PERF_RECORD_UNTHROTTLE) + return 0; + + if (event->header.type < PERF_RECORD_MAX) { + int ret; + + ret = machine__process_event(machine, event, NULL); + if (ret < 0) + pr_debug("machine__process_event failed, event type %u\n", + event->header.type); + return ret; + } return 0; } ^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-11-12 21:58 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-11-11 19:51 "Test object code reading" failing, debug messages don't help Arnaldo Carvalho de Melo 2013-11-11 19:55 ` Arnaldo Carvalho de Melo 2013-11-11 19:58 ` Arnaldo Carvalho de Melo 2013-11-12 7:59 ` Adrian Hunter 2013-11-12 21:57 ` [tip:perf/urgent] perf tests: Handle throttle events in ' object code reading' test tip-bot for Adrian Hunter
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