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From: Jiri Olsa <jolsa@redhat.com>
To: David Ahern <dsahern@gmail.com>
Cc: acme@redhat.com, a.p.zijlstra@chello.nl, mingo@elte.hu,
	paulus@samba.org, cjashfor@linux.vnet.ibm.com,
	fweisbec@gmail.com, linux-kernel@vger.kernel.org,
	Caspar Zhang <czhang@redhat.com>
Subject: Re: [PATCHv3 0/5] perf, tool: Fix endian issues
Date: Thu, 10 May 2012 18:30:33 +0200	[thread overview]
Message-ID: <20120510163033.GA10395@m.brq.redhat.com> (raw)
In-Reply-To: <20120510103825.GA4283@m.brq.redhat.com>

On Thu, May 10, 2012 at 12:38:25PM +0200, Jiri Olsa wrote:
> On Mon, May 07, 2012 at 09:49:17PM -0600, David Ahern wrote:
> > On 5/7/12 5:29 AM, Jiri Olsa wrote:
> > >Tested by running following usecase:
> > >   - origin system:
> > >     # perf record -a -- sleep 10 (any perf record will do)
> > >     # perf report>  report.origin
> > >     # perf archive perf.data
> > >
> > >   - copy the perf.data, report.origin and perf.data.tar.bz2
> > >     to a target system and run:
> > >     # tar xjvf perf.data.tar.bz2 -C ~/.debug
> > >     # perf report>  report.target
> > >     # diff -u report.origin report.target
> > >
> > >   - the diff should produce no output
> > >     (besides some white space stuff and possibly different
> > >      date/TZ output)
> > >
> > >Tested by above usecase cross following architectures:
> > >   i386, x86_64, s390x, ppc64
> > 
> > Short answer: Now that I have perf compiling in a 32-bit PPC VM,
> > applied the patchset and rebuilding -- it does not work for me.
> 
> hi,
> Could I ask what VM did you use? My qemu setup does not seem
> to offer this one.
> 
> so it's [32 bits big endian] into [64 bits small endian]
> 
> I tested i386 to ppc64. The endianity is the other way round,
> I wonder whats wrong with your tested direction.
> 
> hunting testing machine ;)

reproduced ;) working on fix

jirka

      reply	other threads:[~2012-05-10 16:31 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-07 11:29 Jiri Olsa
2012-05-07 11:29 ` [PATCH 1/5] perf, tool: Handle different endians properly during symbol load Jiri Olsa
2012-05-07 11:29 ` [PATCH 2/5] perf, tool: Carry perf_event_attr bitfield throught different endians Jiri Olsa
2012-05-07 11:29 ` [PATCH 3/5] perf, tool: Handle endianity swap on sample_id_all header data Jiri Olsa
2012-05-07 11:29 ` [PATCH 4/5] perf, tool: Fix 32 bit values endianity swap for sample_id_all header Jiri Olsa
2012-05-07 11:29 ` [PATCH 5/5] perf, tool: Fix endianity trick for adds_features bitmask Jiri Olsa
2012-05-07 16:15   ` David Ahern
2012-05-08  2:12 ` [PATCHv3 0/5] perf, tool: Fix endian issues David Ahern
2012-05-08  3:37   ` David Ahern
2012-05-08  3:49 ` David Ahern
2012-05-10 10:38   ` Jiri Olsa
2012-05-10 16:30     ` Jiri Olsa [this message]

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