Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 2 Apr 2010 12:47:23 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [Kgdb-bugreport] [PATCH 4/5] kgdb: Use atomic operators whichuse barriers |
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On Fri, 2 Apr 2010, Jason Wessel wrote: > > Here is the revised patch, which is going into the kgdb-fixes branch.
Yeah, this patch I have no issues with.
Except:
> From: Jason Wessel <jason.wessel@windriver.com> > Subject: [PATCH] kgdb: Use atomic operators which use barriers > > The cpu_relax() does not mandate that there is an smp memory barrier. > As a result on the arm smp architecture the kernel debugger can hang > on entry from time to time, as shown by the kgdb regression tests.
Now your changelog makes no sense any more.
Linus
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