Your message dated Mon, 18 Aug 2014 15:19:26 +0200
with message-id <[email protected]>
and subject line Re: Bug#758419: trace-cmd: Plugin function_graph missing
has caused the Debian Bug report #758419,
regarding trace-cmd: Plugin function_graph missing
to be marked as done.
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758419: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=758419
Debian Bug Tracking System
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--- Begin Message ---
Package: trace-cmd
Version: 2.4.0-1
Severity: normal
Dear Maintainer,
trace-cmd should come with a "function_graph" plugins (mentioned in
the manual pages, for example in trace-cmd-record). However, it seems
absent.
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.15-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages trace-cmd depends on:
ii libc6 2.19-9
ii libpython2.7 2.7.8-4
ii python 2.7.8-1
ii python2.7 2.7.8-4
pn python:any <none>
trace-cmd recommends no packages.
Versions of packages trace-cmd suggests:
pn kernelshark <none>
-- no debconf information
--- End Message ---
--- Begin Message ---
❦ 18 août 2014 07:36 -0500, Seth Forshee <[email protected]> :
>> > trace-cmd should come with a "function_graph" plugins (mentioned in
>> > the manual pages, for example in trace-cmd-record). However, it seems
>> > absent.
>>
>> It seems that other plugins do not work either:
>>
>> $ sudo trace-cmd record -p function -e sched_switch ls
>> /sys/kernel/debug/tracing/events/sched_switch/filter
>> /sys/kernel/debug/tracing/events/*/sched_switch/filter
>> trace-cmd: No such file or directory
>> Plugin 'function' does not exist
>>
>> Despite the presence of /usr/lib/trace-cmd/plugins/plugin_function.so.
>
> That's working fine here. I suspect your problem is either that you
> don't have debugfs mounted or that your kernel is missing something it
> needs to do what trace-cmd is asking. First check that /sys/kernel/debug
> is mounted, then that /sys/kernel/debug/tracing exists. If both those
> are true run 'cat /sys/kernel/debug/tracing/available_tracers' and make
> sure that function and function_graph are both in the list.
Yes, I have neither function nor function_graph in available_tracers. It
is not compiled in default Debian kernels. I have opened a bug for
that. Let's close this one.
Thanks!
--
#ifdef STUPIDLY_TRUST_BROKEN_PCMD_ENA_BIT
2.4.0-test2 /usr/src/linux/drivers/ide/cmd640.c
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