#!/bin/bash # # Check the console output from an rcutorture run for oopses. # The "file" is a pathname on the local system, and "title" is # a text string for error-message purposes. # # Usage: parse-console.sh file title # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, you can access it online at # http://www.gnu.org/licenses/gpl-2.0.html. # # Copyright (C) IBM Corporation, 2011 # # Authors: Paul E. McKenney file="$1" title="$2" . functions.sh if grep -Pq '\x00' < $file then print_warning Console output contains nul bytes, old qemu still running? fi egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:|detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state|rcu_.*kthread starved for' < $file | grep -v 'ODEBUG: ' | grep -v 'Warning: unable to open an initial console' > $1.diags if test -s $1.diags then print_warning Assertion failure in $file $title # cat $1.diags summary="" n_badness=`grep -c Badness $1` if test "$n_badness" -ne 0 then summary="$summary Badness: $n_badness" fi n_warn=`grep -v 'Warning: unable to open an initial console' $1 | egrep -c 'WARNING:|Warn'` if test "$n_warn" -ne 0 then summary="$summary Warnings: $n_warn" fi n_bugs=`egrep -c 'BUG|Oops:' $1` if test "$n_bugs" -ne 0 then summary="$summary Bugs: $n_bugs" fi n_calltrace=`grep -c 'Call Trace:' $1` if test "$n_calltrace" -ne 0 then summary="$summary Call Traces: $n_calltrace" fi n_lockdep=`grep -c =========== $1` if test "$n_badness" -ne 0 then summary="$summary lockdep: $n_badness" fi n_stalls=`egrep -c 'detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state' $1` if test "$n_stalls" -ne 0 then summary="$summary Stalls: $n_stalls" fi n_starves=`grep -c 'rcu_.*kthread starved for' $1` if test "$n_starves" -ne 0 then summary="$summary Starves: $n_starves" fi print_warning Summary: $summary else rm $1.diags fi oot/drivers
>
ModeNameSize
path: root/kernel/locking/lockdep_proc.c
diff options
context:
space:
mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-12 17:15:56 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-01-30 10:17:32 +0100
commite6e7b48b295afa5a5ab440de0a94d9ad8b3ce2d0 (patch)
tree77cadb6d8aad1b52c34e4afa8c9deef603bbe2ed /kernel/locking/lockdep_proc.c
parent4e5b54f127426c82dc2816340c26d951a5bb3429 (diff)
drm: Don't race connector registration
I was under the misconception that the sysfs dev stuff can be fully set up, and then registered all in one step with device_add. That's true for properties and property groups, but not for parents and child devices. Those must be fully registered before you can register a child. Add a bit of tracking to make sure that asynchronous mst connector hotplugging gets this right. For consistency we rely upon the implicit barriers of the connector->mutex, which is taken anyway, to ensure that at least either the connector or device registration call will work out. Mildly tested since I can't reliably reproduce this on my mst box here. Reported-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484237756-2720-1-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'kernel/locking/lockdep_proc.c')