gcore thread problem?

[David Xu]

On Thursday 23 November 2006 08:13, Kip Macy wrote:
> That isn't how multi-threading is handled for core-files. For each thread
> an additional set of GPRs and FPRs is added to the elf header.
>
>  -Kip
>

I know, but procfs does not export thread information.

David Xu

> On 11/22/06, David Xu <davidxu at freebsd.org> wrote:
> > On Wednesday 22 November 2006 20:12, Vaidehi Shukla wrote:
> > > Hi All,
> > >
> > > 'gcore' doesn't display correct backtrace (info threads) for
> >
> > multi-threaded
> >
> > > application. Is there any way to get correct backtrace (i.e. info
> >
> > threads)
> >
> > > with gcore in freebsd?. Let me know if you can suggest some method to
> >
> > get
> >
> > > correct backtrace.
> > >
> > > Thanks & Regards,
> > > Vaidehi
> >
> > I think it becauses threaded application does not work correctly with
> > procfs, one problem is gcore is using files in /proc to get information,
> > if an application has thousands of thread, should kernel create so much
> > vnode for the application ? it seems to be overkill.
> >
> > David Xu
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