On Thu, 2019-12-19 at 17:32 +, Rachel Chen (rychen) wrote:
> Hi Philippe,
>
> Thanks for your help!
>
> I am running this on a linux switch.
What CPU ? What version of linux ?
> The Valgrind I am using is 2.15.
2.15 is not a known valgrind version.
The valgrind version can be retrieved doing: valgrind --version
Recent valgrind will give a more extended version doing: valgrind --version -v
> There is no error message/output when the crash happens.
It was not clear to me that the whole system (kernel) crashed,
I thought you were speaking about your "application system" crashing.
valgrind is supposed to be a 'normal' user level process, so if ever
valgrind crashes the kernel, then that is a kernel bug :).
Note that valgrind takes a lot of resources (memory/cpu),
that might put some stress on the system.
> But I noticed after the system bootup again, the valgrind log file seems do
> have some info there...
>
> I will check the link below to see if I can trigger memory leak search
> without killing the process.
Ok.
Note that the given links document the last released version of valgrind.
Philippe
>
> Thanks,
> Rachel
>
>
> On 12/18/19, 10:42 PM, "Philippe Waroquiers"
> wrote:
>
> On Thu, 2019-12-19 at 00:19 +, Rachel Chen (rychen) via
> Valgrind-users wrote:
> > Hello,
> >
> > I am using Valgrind to debug a memory leak. Somehow when I try to kill
> the process to get the log file with memory leak, it crash the system. I am
> using the following command to get the pid and kill the pid:
> >
> > Ps -ef | grep valgrind. è to get the pid
> > Kill
> >
> > Any idea what might be wrong here? Thanks for the help in advance!
> >
> > Thanks,
> > Rachel
>
> Some more information is needed :
> * which platform ?
> * which version of valgrind ?
> * what is the error message/output when the crash happens ?
>
> Note that you can trigger memory leak search from the shell (or from gdb)
> by using vgdb, without killing your process.
>
> See the below links for more information.
>
>
> http://www.valgrind.org/docs/manual/manual-core-adv.html#manual-core-adv.valgrind-monitor-commands
>
>
> http://www.valgrind.org/docs/manual/manual-core-adv.html#manual-core-adv.gdbserver-commandhandling
>
>
> http://www.valgrind.org/docs/manual/mc-manual.html#mc-manual.monitor-commands
>
> Philippe
>
>
>
>
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