From: "Luck, Tony" <tony.luck@intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>,
Vincent Guittot <vincent.guittot@linaro.org>,
Patrick Bellasi <patrick.bellasi@arm.com>,
Ingo Molnar <mingo@kernel.org>,
Norbert Manthey <nmanthey@amazon.de>,
Frederic Weisbecker <frederic@kernel.org>,
linux-kernel@vger.kernel.org
Subject: v4.16+ seeing many unaligned access in dequeue_task_fair() on IA64
Date: Mon, 2 Apr 2018 16:24:49 -0700 [thread overview]
Message-ID: <20180402232448.fbop7k5xicblski5@agluck-desk> (raw)
v4.16 boots cleanly. But with the first bunch of merges
(Linus HEAD = 46e0d28bdb8e6d00e27a0fe9e1d15df6098f0ffb)
I see a bunch of:
ia64_handle_unaligned: 4863 callbacks suppressed
kernel unaligned access to 0xe00000031660fd74, ip=0xa0000001000f23e0
kernel unaligned access to 0xe00000033bdffbcc, ip=0xa0000001000f2370
kernel unaligned access to 0xe00000031660fd74, ip=0xa0000001000f23e0
kernel unaligned access to 0xe00000033bdffbcc, ip=0xa0000001000f2370
kernel unaligned access to 0xe00000031660fd74, ip=0xa0000001000f23e0
The addresses are all 4-byte, but not 8-byte aligned.
Any guesses before I start to bisect?
-Tony
next reply other threads:[~2018-04-02 23:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-02 23:24 Luck, Tony [this message]
2018-04-02 23:39 ` Luck, Tony
2018-04-03 7:37 ` Peter Zijlstra
2018-04-03 18:58 ` Luck, Tony
2018-04-04 0:04 ` Luck, Tony
2018-04-04 7:25 ` Peter Zijlstra
2018-04-04 16:38 ` Luck, Tony
2018-04-04 16:53 ` Peter Zijlstra
2018-04-05 8:05 ` Peter Zijlstra
2018-04-05 8:56 ` Ingo Molnar
2018-04-05 9:18 ` [tip:sched/urgent] sched/core: Force proper alignment of 'struct util_est' tip-bot for Peter Zijlstra
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