Messages in this thread | | | Date | Mon, 25 Feb 2013 10:58:39 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH 1/1] perf/tools: Fix "perf record -C... workload" behaviour |
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On Wed, Feb 06, 2013 at 08:42:58PM +0100, Oleg Nesterov wrote: > Test-case: > > # perf record -e probe_libc:syscall -C0 true > true: Terminated > > The child process is killed by perf_record__sig_exit(). This is because > perf_evlist__prepare_workload() doesn't initialize threads->map[] and > then perf_event__synthesize_mmap_events() (silently!) fails. This patch
hi, sorry for late reply..
I think the reason it fails is that it actually got inside perf_event__synthesize_mmap_events while there's cpu list specified.
I sent possible fix: http://marc.info/?l=linux-kernel&m=136178604718144&w=2
> seems to fix the problem, but perhaps we should also move > 'pr_err("Couldn't run the workload!\n")' down to 'out_delete_session:',
I'll check ;-)
thanks, jirka
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