Paul E. McKenney
768dfffdff
rcu: Prevent RCU callbacks from executing before scheduler initialized
...
This is a port of commit #b0d3041 from TREE_RCU to TREE_PREEMPT_RCU.
Under some rare but real combinations of configuration parameters, RCU
callbacks are posted during early boot that use kernel facilities that are
not yet initialized. Therefore, when these callbacks are invoked, hard
hangs and crashes ensue. This commit therefore prevents RCU callbacks
from being invoked until after the scheduler is fully up and running,
as in after multiple tasks have been spawned.
It might well turn out that a better approach is to identify the specific
RCU callbacks that are causing this problem, but that discussion will
wait until such time as someone really needs an RCU callback to be invoked
(as opposed to merely registered) during early boot.
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2012-02-21 09:03:41 -08:00
..
debug
module: struct module_ref should contains long fields
2012-01-13 09:32:14 +10:30
events
perf: Fix double start/stop in x86_pmu_start()
2012-02-07 16:58:56 +01:00
gcov
gcov: disable CONSTRUCTORS for UML
2011-07-26 16:49:45 -07:00
irq
module_param: make bool parameters really bool (core code)
2012-01-13 09:32:18 +10:30
power
PM / Freezer: Thaw only kernel threads if freezing of kernel threads fails
2012-02-04 22:23:05 +01:00
sched
sched/rt: Fix task stack corruption under __ARCH_WANT_INTERRUPTS_ON_CTXSW
2012-01-27 12:49:41 +01:00
time
Merge branch 'rcu/fixes-for-v3.2' into rcu/urgent
2012-01-16 09:41:18 -08:00
trace
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-01-15 11:26:35 -08:00
.gitignore
acct.c
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-01-08 12:19:57 -08:00
async.c
kernel/async: remove redundant declaration.
2012-01-13 09:32:18 +10:30
audit.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit
2012-01-17 16:41:31 -08:00
audit.h
audit: remove AUDIT_SETUP_CONTEXT as it isn't used
2012-01-17 16:16:57 -05:00
audit_tree.c
audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu()
2011-07-20 14:10:11 -07:00
audit_watch.c
kill path_lookup()
2011-03-14 09:15:23 -04:00
auditfilter.c
audit: allow interfield comparison in audit rules
2012-01-17 16:17:01 -05:00
auditsc.c
kernel-doc: fix new warnings in auditsc.c
2012-01-23 08:44:53 -08:00
backtracetest.c
bounds.c
memcg: remove direct page_cgroup-to-page pointer
2011-03-23 19:46:28 -07:00
capability.c
Revert "capabitlies: ns_capable can use the cap helpers rather than lsm call"
2012-01-17 10:19:41 -08:00
cgroup.c
Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-01-09 12:59:24 -08:00
cgroup_freezer.c
Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-01-09 12:59:24 -08:00
compat.c
kernel: Fix files explicitly needing EXPORT_SYMBOL infrastructure
2011-10-31 19:30:05 -04:00
configs.c
kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n
2011-07-25 20:57:15 -07:00
cpu.c
Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2012-01-08 13:10:57 -08:00
cpu_pm.c
cpu_pm: call notifiers during suspend
2011-09-23 12:05:29 +05:30
cpuset.c
Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-01-09 12:59:24 -08:00
crash_dump.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
cred.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
delayacct.c
KVM: Steal time implementation
2011-07-14 12:59:14 +03:00
dma.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
elfcore.c
exec_domain.c
sys_personality: remove the bogus checks in sys_personality()->__set_personality() path
2010-08-09 20:45:05 -07:00
exit.c
sched: Fix ancient race in do_exit()
2012-01-27 11:55:36 +01:00
extable.c
extable, core_kernel_data(): Make sure all archs define _sdata
2011-05-20 08:56:56 +02:00
fork.c
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2012-02-11 10:07:11 -08:00
freezer.c
freezer: kill unused set_freezable_with_signal()
2011-11-23 09:28:17 -08:00
futex.c
futex: Fix uninterruptible loop due to gate_area
2011-12-31 11:48:28 -08:00
futex_compat.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
groups.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
hrtimer.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2011-11-28 08:43:52 -08:00
hung_task.c
hung_task: fix false positive during vfork
2012-01-03 16:14:32 -08:00
irq_work.c
kernel: fix two implicit header assumptions in irq_work.c
2011-10-31 09:20:12 -04:00
itimer.c
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
jump_label.c
Merge remote-tracking branch 'tip/perf/core' into kvm-updates/3.3
2011-12-27 11:22:24 +02:00
kallsyms.c
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-25 17:52:22 -07:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
arch:Kconfig.locks Remove unused config option.
2011-04-10 17:01:05 +02:00
Kconfig.preempt
sched: Isolate preempt counting in its own config option
2011-06-10 15:15:40 +02:00
kexec.c
kdump: crashk_res init check for /sys/kernel/kexec_crash_size
2012-01-12 20:13:11 -08:00
kfifo.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kmod.c
Merge branch 'pm-sleep' into pm-for-linus
2011-12-25 23:42:20 +01:00
kprobes.c
kprobes: fix a memory leak in function pre_handler_kretprobe()
2012-02-03 16:16:41 -08:00
ksysfs.c
kernel: ksysfs.c is implicitly using stat.h
2011-10-31 09:20:13 -04:00
kthread.c
freezer: kill unused set_freezable_with_signal()
2011-11-23 09:28:17 -08:00
latencytop.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
lockdep.c
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-01-06 08:02:58 -08:00
lockdep_internals.h
lockdep_proc.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
lockdep_states.h
Makefile
PM: Make sysrq-o be available for CONFIG_PM unset
2012-01-14 00:33:03 +01:00
module.c
error: implicit declaration of function 'module_flags_taint'
2012-01-15 16:21:07 -08:00
mutex-debug.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
mutex-debug.h
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
mutex.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
mutex.h
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
notifier.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
nsproxy.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
padata.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
panic.c
panic: don't print redundant backtraces on oops
2012-01-12 20:13:11 -08:00
params.c
module: make module param bint handle nul value
2012-02-14 11:02:15 +10:30
pid.c
sysctl: add the kernel.ns_last_pid control
2012-01-12 20:13:11 -08:00
pid_namespace.c
sysctl: add the kernel.ns_last_pid control
2012-01-12 20:13:11 -08:00
posix-cpu-timers.c
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
posix-timers.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
printk.c
module_param: make bool parameters really bool (core code)
2012-01-13 09:32:18 +10:30
profile.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
ptrace.c
Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-security
2012-01-14 18:36:33 -08:00
range.c
range: fix bogus misuse of module.h to get printk()
2011-10-31 09:20:11 -04:00
rcu.h
rcu: Avoid waking up CPUs having only kfree_rcu() callbacks
2012-02-21 09:03:25 -08:00
rcupdate.c
rcu: Detect illegal rcu dereference in extended quiescent state
2011-12-11 10:31:30 -08:00
rcutiny.c
rcu: Avoid waking up CPUs having only kfree_rcu() callbacks
2012-02-21 09:03:25 -08:00
rcutiny_plugin.h
rcu: Prevent RCU callbacks from executing before scheduler initialized
2012-02-21 09:03:41 -08:00
rcutorture.c
rcu: Make rcutorture flag online/offline failures
2012-02-21 09:03:35 -08:00
rcutree.c
rcu: Remove single-rcu_node optimization in rcu_start_gp()
2012-02-21 09:03:38 -08:00
rcutree.h
rcu: Simplify offline processing
2012-02-21 09:03:34 -08:00
rcutree_plugin.h
rcu: Limit lazy-callback duration
2012-02-21 09:03:36 -08:00
rcutree_trace.c
rcu: Avoid waking up CPUs having only kfree_rcu() callbacks
2012-02-21 09:03:25 -08:00
relay.c
relay: prevent integer overflow in relay_open()
2012-02-10 09:04:49 +01:00
res_counter.c
net: introduce res_counter_charge_nofail() for socket allocations
2012-01-22 15:08:46 -05:00
resource.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
rtmutex-debug.c
lockdep, rtmutex, bug: Show taint flags on error
2011-12-06 08:16:49 +01:00
rtmutex-debug.h
rtmutex-tester.c
rtmutex-tester: convert sysdev_class to a regular subsystem
2011-12-14 14:54:22 -08:00
rtmutex.c
Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"
2011-12-11 10:33:18 -08:00
rtmutex.h
rtmutex_common.h
rtmutex: Simplify PI algorithm and make highest prio task get lock
2011-01-27 21:13:51 -05:00
rwsem.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
seccomp.c
seccomp: audit abnormal end to a process due to seccomp
2012-01-17 16:16:55 -05:00
semaphore.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
signal.c
user namespace: make signal.c respect user namespaces
2012-01-10 16:30:54 -08:00
smp.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
softirq.c
rcu: Fix early call to rcu_idle_enter()
2011-12-11 10:31:38 -08:00
spinlock.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
srcu.c
rcu: Add lockdep-RCU checks for simple self-deadlock
2012-02-21 09:03:23 -08:00
stacktrace.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
stop_machine.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
sys.c
c/r: prctl: add PR_SET_MM codes to set up mm_struct entries
2012-01-12 20:13:13 -08:00
sys_ni.c
Cross Memory Attach
2011-10-31 17:30:44 -07:00
sysctl.c
x86: Panic on detection of stack overflow
2011-12-05 11:37:47 +01:00
sysctl_binary.c
binary_sysctl(): fix memory leak
2011-12-20 10:25:04 -08:00
sysctl_check.c
xfs: remove subdirectories
2011-08-12 16:21:35 -05:00
taskstats.c
Make TASKSTATS require root access
2011-09-19 17:04:37 -07:00
test_kprobes.c
kprobes: Fix selftest to clear flags field for reusing probes
2010-10-14 08:55:27 +02:00
time.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
timeconst.pl
timer.c
Merge branch 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-01-06 07:53:34 -08:00
tracepoint.c
tracepoints/module: Fix disabling tracepoints with taint CRAP or OOT
2012-01-16 11:35:57 -05:00
tsacct.c
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
uid16.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
up.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user-return-notifier.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user_namespace.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
utsname.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
utsname_sysctl.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
wait.c
lockdep/waitqueues: Add better annotation
2011-12-21 10:07:39 +01:00
watchdog.c
bugs, x86: Fix printk levels for panic, softlockups and stack dumps
2012-01-26 21:28:45 +01:00
workqueue.c
workqueue: make alloc_workqueue() take printf fmt and args for name
2012-01-10 16:30:54 -08:00
workqueue_sched.h
workqueue: implement concurrency managed dynamic worker pool
2010-06-29 10:07:14 +02:00