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From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: LKML <linux-kernel@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
	Steven Rostedt <rostedt@goodmis.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Ingo Molnar <mingo@elte.hu>,
	Richard Mortimer <richm@oldelvet.org.uk>,
	ben@decadent.org.uk, sparclinux@vger.kernel.org
Subject: [patch 0/3] Fix alignment of custom sections made from structures (v3)
Date: Fri, 21 Jan 2011 15:36:30 -0500	[thread overview]
Message-ID: <20110121203630.725922272@efficios.com> (raw)

Hello,

Here is a patchset that fixes the Ftrace-induced crash experienced on sparc64
discussed in the following thread: https://lkml.org/lkml/2011/1/16/2

The third patch changes the Tracepoints to use the more compact alignment scheme
proposed here, even though their alignment on 32-byte works fine. This third
patch is therefore not a fix per se.

The patchset is based on 2.6.37. Hopefully there are not too many things to
update for the current -git.

Changelog since v2: drop the "packed" attribute, because it caused unaligned 
acceses on sparc64 by dropping the padding between consecutive "int" and 
"pointer"/"long" fields.

Comments are welcome,

Mathieu

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com

             reply	other threads:[~2011-01-21 20:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-21 20:36 Mathieu Desnoyers [this message]
2011-01-21 20:36 ` [patch 1/3] introduce __u64_aligned and U64_ALIGN() for structure alignment in custom sections (v3) Mathieu Desnoyers
2011-01-22  0:05   ` David Miller
2011-01-22 17:11     ` Mathieu Desnoyers
2011-01-22 17:43       ` Steven Rostedt
2011-01-25 23:34         ` Mathieu Desnoyers
2011-01-26  0:25           ` Steven Rostedt
2011-01-26  7:12   ` [tip:perf/core] Introduce __u64_aligned and U64_ALIGN() for structure alignment in custom sections tip-bot for Mathieu Desnoyers
2011-01-21 20:36 ` [patch 2/3] tracing: fix sparc64 alignment crash with __u64_aligned/U64_ALIGN() Mathieu Desnoyers
2011-01-22  0:05   ` David Miller
2011-01-22 17:15     ` Mathieu Desnoyers
2011-01-26  7:13   ` [tip:perf/core] tracing: Fix " tip-bot for Mathieu Desnoyers
2011-01-21 20:36 ` [patch 3/3] tracepoints: use __u64_aligned/U64_ALIGN() Mathieu Desnoyers
2011-01-22  0:05   ` David Miller
2011-01-26  7:13   ` [tip:perf/core] tracepoints: Use __u64_aligned/U64_ALIGN() tip-bot for Mathieu Desnoyers

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