Re: [PATCH 0/3] [GIT PULL][v2.6.38] tracing: fix unaligned eventarrays
From: Ingo Molnar
Date: Wed Jan 26 2011 - 15:59:18 EST
* Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> On Wed, 2011-01-26 at 07:47 +0100, Ingo Molnar wrote:
> > > Mathieu Desnoyers (3):
> > > Introduce __u64_aligned and U64_ALIGN() for structure alignment in custom sections
> > > tracing: Fix sparc64 alignment crash with __u64_aligned/U64_ALIGN()
> > > tracepoints: Use __u64_aligned/U64_ALIGN()
> > >
> > Pulled, thanks a lot Steve!
> > Ingo
> Hi Ingo,
> We (well Peter really) just discovered that this can cause alignment
> issues with gcc 4.4.4 and 4.4.5 (I unfortunately only tested it with gcc
> 4.5.1). We are currently looking into fixing it.
> Letting you know so that you don't push this off to Linus ;-)
Well, i found and reported that 'perf stat -e irq:irq_handler_entry -a sleep 1'
crash to Peter (i first thought it's due to his patch) so yes i know about it :-)
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