From: Stephane Eranian <eranian@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH]utrace: IA64 RSE bug
Date: Tue, 07 Aug 2007 21:55:31 +0000 [thread overview]
Message-ID: <20070807215531.GA23261@frankl.hpl.hp.com> (raw)
In-Reply-To: <1186464229.784.9.camel@sli10-conroe.sh.intel.com>
Hello,
On Tue, Aug 07, 2007 at 12:13:16AM -0700, Roland McGrath wrote:
> That looks reasonable to me, not being expert on the ia64 details.
> I rolled that into utrace-regset-ia64.patch in the 2.6.22 backport version.
>
> > patch is against latest utrace source (2.6.22 base + utrace patches)
>
> The latest utrace source is based on 2.6.23-rc2, and your patch does not
> apply there. TIF_NOTIFY_RESUME has been renamed to TIF_PERFMON_WORK.
> So you need to rename it back (or to something else) to overload it.
>
Yes, in 2.6.23, TIF_NOTIFY_RESUME has been removed because it was not used
except for perfmon, thus I renamed it. The problem is that you cannot just
override it because you would need a way to further demultiplex the
reason for call do_notify_resume(). Perfmon not simply relies on the
TIF_PERFMON_WORK bit being set. As you realize now this flag would
mean you have some RSE work or some perfmon work.
--
-Stephane
next prev parent reply other threads:[~2007-08-07 21:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-07 5:23 [PATCH]utrace: IA64 RSE bug Shaohua Li
2007-08-07 7:13 ` Roland McGrath
2007-08-07 21:55 ` Stephane Eranian [this message]
2007-08-08 2:30 ` Shaohua Li
2007-08-08 23:10 ` Stephane Eranian
2007-08-09 2:35 ` Shaohua Li
2007-08-14 9:13 ` Roland McGrath
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