Re: Printing backtrace of postgres processes

On Wed, Jan 27, 2021 at 10:40 PM Andres Freund  wrote:
>
> Hi,
>
> On 2021-01-27 19:05:16 +0530, vignesh C wrote:
>
> >  /*
> > + * LogBackTrace
> > + *
> > + * Get the backtrace and log the backtrace to log file.
> > + */
> > +void
> > +LogBackTrace(void)
> > +{
> > +     int                     save_errno = errno;
> > +
> > +     void       *buf[100];
> > +     int                     nframes;
> > +     char      **strfrms;
> > +     StringInfoData errtrace;
> > +
> > +     /* OK to process messages.  Reset the flag saying there are more to do. */
> > +     PrintBacktracePending = false;
>
> ISTM that it'd be better to do this in the caller, allowing this
> function to be used outside of signal triggered backtraces.
>
> >
> > +extern void LogBackTrace(void); /* Called from EmitProcSignalPrintCallStack */
>
> I don't think this comment is correct anymore?

Thanks for the comments, I have fixed and attached an updated patch
with the fixes for the same.
Thoughts?

Regards,
Vignesh