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Re: sleeping, locks and debug kernels
- From: Mark Wielaard <mjw at redhat dot com>
- To: Oleg Nesterov <oleg at redhat dot com>, fche at redhat dot com
- Cc: David Smith <dsmith at redhat dot com>, systemtap at sourceware dot org
- Date: Tue, 31 Jan 2012 23:23:30 +0100
- Subject: Re: sleeping, locks and debug kernels
- References: <1323703266.31199.18.camel@springer.wildebeest.org> <4EE62889.9070408@redhat.com> <20111212165851.GA23673@redhat.com>
On Mon, Dec 12, 2011 at 05:58:51PM +0100, Oleg Nesterov wrote:
> Yes, it is very simple to add UTRACE_ATTACH_CREATE_ATOMIC.
Since newer utrace now have that flag I made a patch to take
advantage of it. This makes us lockdep free (at least on recent
rawhide kernels for the systemtap.base make installcheck subset).
It is on the mjw/create_atomic branch. Please pull onto master
if we like to have this for the release.
Cheers,
Mark