Re: [PATCH RESEND 3.18-rc3 v2 0/2] trace: kdb: Bug fixes for ftdump

From: Steven Rostedt
Date: Thu Nov 13 2014 - 21:16:26 EST


On Mon, 10 Nov 2014 09:41:32 +0000
Daniel Thompson <daniel.thompson@xxxxxxxxxx> wrote:

> On 06/11/14 13:27, Steven Rostedt wrote:
> > On Thu, 6 Nov 2014 12:41:54 +0000
> > Daniel Thompson <daniel.thompson@xxxxxxxxxx> wrote:
> >
> >> This patchset makes it possible to use kdb's ftdump command without
> >> panicing, crashing or livelocking. The ftdump command cannot be used
> >> at all without these changes.
> >>
> >> IIRC this patches are still pending Jason's ack.
> >
> > I haven't heard from Jason in a long time. Is he still active?
>
> [sorry for the delay, I wanted to give Jason a chance to answer this]
>
> Very occasionally.
>
> I can't find anything on lkml in the last three months, and I have
> unreviewed kdb patches that stretch back well beyond that.
>
> That said he still helps people on kgdb-bugreport@ from time-to-time
> (and as recently as last week). I've also had a little bit of private
> contact although nothing very recent.
>
> On that basis I'd say you shouldn't feel guilty if you have to accept a
> change here without an ack.
>

He had more than enough time to respond. OK, I'll take it.

Looking at the first patch, I notice that there's no protection of the
static buffer_iter array. I also noticed that there's no protection of
the static iter itself (which was there before your patch). I take it
that this code is not re-entrant.


Thanks!

-- Steve
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