From: Chuck Anderson <chuck.anderson@oracle.com>
To: linux-kernel@vger.kernel.org
Cc: Al Viro <viro@zeniv.linux.org.uk>, Eric Paris <eparis@redhat.com>,
Dan Duval <dan.duval@oracle.com>,
Luiz Capitulino <lcapitulino@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 0/2] audit: fix soft lockups and udevd errors when audit is overrun
Date: Mon, 02 Sep 2013 20:45:14 -0700 [thread overview]
Message-ID: <52255B4A.6070804@oracle.com> (raw)
The two patches that follow in separate emails resolve soft lockups and
udevd reported errors that prevented a large memory 3.8 system from booting.
The patches are based on 3.11-rc7.
I believe it is the same issue recently posted as:
[RFC] audit: avoid soft lockup in audit_log_start()
https://lkml.org/lkml/2013/8/28/626
The first patch:
audit: fix soft lockups due to loop in audit_log_start() when
audit_backlog_limit exceeded
fixes a bug in kernel/audit that caused many soft lockups during boot:
BUG: soft lockup - CPU#66 stuck for 22s! [udevd:9559]
RIP: 0010:[<ffffffff810d1d06>] [<ffffffff810d1d06>]
audit_log_start+0xe6/0x350
Call Trace:
[<ffffffff8108ea30>] ? try_to_wake_up+0x2d0/0x2d0
[<ffffffff810d8d6f>] audit_log_exit+0x3f/0x590
[<ffffffff810d975d>] __audit_syscall_exit+0x28d/0x2c0
[<ffffffff815e0440>] sysret_audit+0x17/0x21
The second patch:
audit: Two efficiency fixes for audit mechanism
prevents these and similar error messages repeated often during boot:
udevd[876]: worker [887] unexpectedly returned with status 0x0100
udevd[876]: worker [887] failed while handling
'/devices/pci0000:00/0000:00:03.0/0000:40:00.0'
udevd[876]: worker [880] unexpectedly returned with status 0x0100
udevd[876]: worker [880] failed while handling
'/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1/event1'
udevadm settle - timeout of 180 seconds reached, the event queue
contains:
/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1/event1 (3995)
/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/INT3F0D:00 (4034)
audit: audit_backlog=258 > audit_backlog_limit=256
audit: audit_lost=1 audit_rate_limit=0 audit_backlog_limit=256
next reply other threads:[~2013-09-03 3:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-03 3:45 Chuck Anderson [this message]
2013-09-03 4:46 ` [PATCH 0/2] audit: fix soft lockups and udevd errors when audit is overrun Luiz Capitulino
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