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From: Dave Jones <davej@redhat.com>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: linux-mm@kvack.org, Fedora Kernel Team <kernel-team@fedoraproject.org>
Subject: exit_mmap() BUG_ON triggering since 3.1
Date: Wed, 15 Feb 2012 13:33:18 -0500	[thread overview]
Message-ID: <20120215183317.GA26977@redhat.com> (raw)

We've had three reports against the Fedora kernel recently where
a process exits, and we're tripping up the 

        BUG_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT);

in exit_mmap()

It started happening with 3.1, but still occurs on 3.2
(no 3.3rc reports yet, but it's not getting much testing).

https://bugzilla.redhat.com/show_bug.cgi?id=786632
https://bugzilla.redhat.com/show_bug.cgi?id=787527
https://bugzilla.redhat.com/show_bug.cgi?id=790546

I don't see anything special in common between the loaded modules.

anyone?

	Dave

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             reply	other threads:[~2012-02-15 18:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-15 18:33 Dave Jones [this message]
2012-02-16  2:14 ` exit_mmap() BUG_ON triggering since 3.1 Hugh Dickins
2012-02-16  2:22   ` Roland Dreier
2012-02-16  2:48     ` Hugh Dickins
2012-02-16  7:07   ` Andrea Arcangeli
2012-02-16  9:53     ` Hugh Dickins
2012-02-16 21:42       ` Andrea Arcangeli
2012-03-02 22:53         ` Hugh Dickins
2012-03-02 22:58           ` Andrew Morton
2012-03-02 23:09             ` Hugh Dickins
2012-03-05 19:59               ` Josh Boyer
2012-03-05 20:07                 ` Andrew Morton

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