Arjan van de Ven 2c16e9c888 [PATCH] lockdep: disable lock debugging when kernel state becomes untrusted ...

Disable lockdep debugging in two situations where the integrity of the
kernel no longer is guaranteed: when oopsing and when hitting a
tainting-condition.  The goal is to not get weird lockdep traces that don't
make sense or are otherwise undebuggable, to not waste time.

Lockdep assumes that the previous state it knows about is valid to operate,
which is why lockdep turns itself off after the first violation it reports,
after that point it can no longer make that assumption.

A kernel oops means that the integrity of the kernel compromised; in
addition anything lockdep would report is of lesser importance than the
oops.

All the tainting conditions are of similar integrity-violating nature and
also make debugging/diagnosing more difficult.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-07-10 13:24:27 -07:00

..

irq

Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

2006-07-03 15:28:34 -07:00

power

[PATCH] swsusp: fix panic when signature can't be read

2006-07-10 13:24:22 -07:00

time

[PATCH] time: rename clocksource functions

2006-06-26 09:58:21 -07:00

.gitignore

gitignore: ignore more generated files

2006-01-03 11:35:26 +01:00

acct.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

audit.c

[NETLINK]: Encapsulate eff_cap usage within security framework.

2006-06-29 16:57:55 -07:00

audit.h

[PATCH] add rule filterkey

2006-07-01 05:43:06 -04:00

auditfilter.c

[PATCH] audit syscall classes

2006-07-01 07:44:10 -04:00

auditsc.c

[PATCH] audit: support for object context filters

2006-07-01 05:44:19 -04:00

capability.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

compat.c

[PATCH] N32 sigset and __COMPAT_ENDIAN_SWAP__

2006-06-25 10:01:15 -07:00

configs.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

cpu.c

[PATCH] cpu hotplug: make [un]register_cpu_notifier init time only

2006-06-27 17:32:41 -07:00

cpuset.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

dma.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

exec_domain.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

exit.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

extable.c

[PATCH] symbol_put_addr() locks kernel

2006-05-15 11:20:55 -07:00

fork.c

[PATCH] remove the tasklist_lock export

2006-07-10 13:24:26 -07:00

futex_compat.c

[PATCH] pi-futex: futex_lock_pi/futex_unlock_pi support

2006-06-27 17:32:47 -07:00

futex.c

[PATCH] pi-futex: Validate futex type instead of oopsing

2006-07-10 13:24:18 -07:00

hrtimer.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

itimer.c

[PATCH] hrtimers: remove data field

2006-03-26 08:57:03 -08:00

kallsyms.c

[PATCH] fix missing includes

2005-10-30 17:37:32 -08:00

Kconfig.hz

[PATCH] i386: Selectable Frequency of the Timer Interrupt

2005-06-23 09:45:10 -07:00

Kconfig.preempt

[PATCH] sched: voluntary kernel preemption

2005-06-25 16:24:45 -07:00

kexec.c

[POWERPC] Add the use of the firmware soft-reset-nmi to kdump.

2006-06-28 15:18:52 +10:00

kfifo.c

[PATCH] gfp flags annotations - part 1

2005-10-08 15:00:57 -07:00

kmod.c

[PATCH] lockdep: annotate on-stack completions

2006-07-03 15:27:09 -07:00

kprobes.c

[PATCH] Notify page fault call chain

2006-06-26 09:58:22 -07:00

ksysfs.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

kthread.c

[PATCH] kthread: move kernel-doc and put it into DocBook

2006-06-25 10:01:24 -07:00

lockdep_internals.h

[PATCH] lockdep: core

2006-07-03 15:27:03 -07:00

lockdep_proc.c

[PATCH] lockdep: procfs

2006-07-03 15:27:04 -07:00

lockdep.c

[PATCH] lockdep: core, reduce per-lock class-cache size

2006-07-10 13:24:14 -07:00

Makefile

[PATCH] lockdep: prove spinlock rwlock locking correctness

2006-07-03 15:27:04 -07:00

module.c

[PATCH] lockdep: core

2006-07-03 15:27:03 -07:00

mutex-debug.c

[PATCH] lockdep: prove mutex locking correctness

2006-07-03 15:27:04 -07:00

mutex-debug.h

[PATCH] lockdep: better lock debugging

2006-07-03 15:27:01 -07:00

mutex.c

[PATCH] lockdep: prove mutex locking correctness

2006-07-03 15:27:04 -07:00

mutex.h

[PATCH] lockdep: prove mutex locking correctness

2006-07-03 15:27:04 -07:00

panic.c

[PATCH] lockdep: disable lock debugging when kernel state becomes untrusted

2006-07-10 13:24:27 -07:00

params.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

pid.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

posix-cpu-timers.c

[PATCH] arm_timer: remove a racy and obsolete PF_EXITING check

2006-06-17 10:52:13 -07:00

posix-timers.c

[PATCH] hrtimers: remove data field

2006-03-26 08:57:03 -08:00

printk.c

[PATCH] kernel/printk.c: EXPORT_SYMBOL_UNUSED

2006-07-10 13:24:17 -07:00

profile.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

ptrace.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

rcupdate.c

[PATCH] lockdep: locking init debugging improvement

2006-07-03 15:27:02 -07:00

rcutorture.c

[PATCH] rcutorture: add call_rcu_bh() operations

2006-06-27 17:32:40 -07:00

relay.c

[PATCH] relay: consolidate sendfile() and read() code

2006-03-23 19:58:45 +01:00

resource.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

rtmutex_common.h

[PATCH] pi-futex: futex_lock_pi/futex_unlock_pi support

2006-06-27 17:32:47 -07:00

rtmutex-debug.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

rtmutex-debug.h

[PATCH] lockdep: better lock debugging

2006-07-03 15:27:01 -07:00

rtmutex-tester.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

rtmutex.c

[PATCH] sched: cleanup, remove task_t, convert to struct task_struct

2006-07-03 15:27:11 -07:00

rtmutex.h

[PATCH] lockdep: better lock debugging

2006-07-03 15:27:01 -07:00

rwsem.c

[PATCH] lockdep: prove rwsem locking correctness

2006-07-03 15:27:04 -07:00

sched.c

[PATCH] small kernel/sched.c cleanup

2006-07-10 13:24:13 -07:00

seccomp.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

signal.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial

2006-06-30 15:39:30 -07:00

softirq.c

[PATCH] kernel/softirq.c: EXPORT_UNUSED_SYMBOL

2006-07-10 13:24:18 -07:00

softlockup.c

[PATCH] cpu hotplug: revert initdata patch submitted for 2.6.17

2006-06-27 17:32:41 -07:00

spinlock.c

[PATCH] lockdep: prove spinlock rwlock locking correctness

2006-07-03 15:27:04 -07:00

stacktrace.c

[PATCH] lockdep: stacktrace subsystem, core

2006-07-03 15:27:02 -07:00

stop_machine.c

[PATCH] revert "kthread: convert stop_machine into a kthread"

2006-07-03 21:25:20 -07:00

sys_ni.c

[PATCH] sys_move_pages: 32bit support (i386, x86_64)

2006-06-23 07:42:53 -07:00

sys.c

Remove obsolete #include <linux/config.h>

2006-06-30 19:25:36 +02:00

sysctl.c

[PATCH] ZVC/zone_reclaim: Leave 1% of unmapped pagecache pages for file I/O

2006-07-03 15:26:59 -07:00

time.c

[PATCH] Time: Introduce arch generic time accessors

2006-06-26 09:58:20 -07:00

timer.c

[PATCH] adjust clock for lost ticks

2006-07-10 13:24:18 -07:00

uid16.c

[PATCH] Add more prevent_tail_call()

2006-04-19 16:27:18 -07:00

unwind.c

[PATCH] x86_64: allow unwinder to build without module support

2006-06-26 10:48:18 -07:00

user.c

[PATCH] selinux: add hooks for key subsystem

2006-06-22 15:05:55 -07:00

wait.c

[PATCH] uninline init_waitqueue_head()

2006-07-10 13:24:25 -07:00

workqueue.c

Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

2006-07-04 14:00:26 -07:00