Re: [PATCH] kmap tracking

From: Andrew Morton
Date: Mon May 22 2006 - 13:38:46 EST

Zach Brown <zach.brown@xxxxxxxxxx> wrote:
> Randy.Dunlap wrote:
> > From: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
> >
> > Track kmap/kunmap call history, storing caller function address,
> > action, and time (jiffies), if CONFIG_DEBUG_KMAP is enabled.
> > Based on a patch to 2.4.21 by Zach Brown that was used successfully
> > at Oracle to track down some kmap/kunmap problems.
> Thanks for bringing this to 2.6.. sorry for the lag in reviewing.

I was scratching my head over this patch trying to think of any bug in
recent years which it would have detected. I failed.

So... what's the motivator here?
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at