Prarit Bhargava ee527cd3a2 Use stop_machine_run in the Intel RNG driver ... Replace call_smp_function with stop_machine_run in the Intel RNG driver. CPU A has done read_lock(&lock) CPU B has done write_lock_irq(&lock) and is waiting for A to release the lock. A third CPU calls call_smp_function and issues the IPI. CPU A takes CPU C's IPI. CPU B is waiting with interrupts disabled and does not see the IPI. CPU C is stuck waiting for CPU B to respond to the IPI. Deadlock. The solution is to use stop_machine_run instead of call_smp_function (call_smp_function should not be called in situations where the CPUs may be suspended). [haruo.tomita@toshiba.co.jp: fix a typo in mod_init()] [haruo.tomita@toshiba.co.jp: fix memory leak] Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: Jan Beulich <jbeulich@novell.com> Cc: "Tomita, Haruo" <haruo.tomita@toshiba.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-05-08 11:15:00 -07:00
..
irq	MSI: arch must connect the irq and the msi_desc	2007-05-02 19:02:38 -07:00
power	freezer: task->exit_state should be treated as bolean	2007-05-08 11:14:58 -07:00
time	[PATCH] fix jiffies clocksource inittime	2007-04-04 21:12:47 -07:00
.gitignore	…
Kconfig.hz	…
Kconfig.preempt	…
Makefile	…
acct.c	…
audit.c	[NETLINK]: Switch cb_lock spinlock to mutex and allow to override it	2007-04-25 22:29:03 -07:00
audit.h	…
auditfilter.c	[PATCH] minor update to rule add/delete messages (ver 2)	2007-02-17 21:30:09 -05:00
auditsc.c	[PATCH] fix deadlock in audit_log_task_context()	2007-03-14 15:27:48 -07:00
capability.c	…
compat.c	…
configs.c	…
cpu.c	[PATCH] Fix microcode-related suspend problem	2007-04-02 10:06:09 -07:00
cpuset.c	cpusets: allow TIF_MEMDIE threads to allocate anywhere	2007-05-07 12:12:53 -07:00
delayacct.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
dma.c	…
exec_domain.c	…
exit.c	Return EPERM not ECHILD on security_task_wait failure	2007-05-07 12:12:57 -07:00
extable.c	…
fork.c	slab allocators: Remove SLAB_DEBUG_INITIAL flag	2007-05-07 12:12:57 -07:00
futex.c	[PATCH] futex: PI state locking fix	2007-03-16 19:25:06 -07:00
futex_compat.c	…
hrtimer.c	[NET]: Fix networking compilation errors	2007-04-27 15:31:24 -07:00
itimer.c	[PATCH] hrtimers: prevent possible itimer DoS	2007-02-16 08:13:59 -08:00
kallsyms.c	Extend print_symbol capability	2007-04-30 16:40:39 -07:00
kexec.c	…
kfifo.c	…
kmod.c	Revert "Driver core: let request_module() send a /sys/modules/kmod/-uevent"	2007-02-23 14:54:57 -08:00
kprobes.c	[PATCH] kprobes: list all active probes in the system	2007-02-20 17:10:14 -08:00
ksysfs.c	remove "struct subsystem" as it is no longer needed	2007-05-02 18:57:59 -07:00
kthread.c	…
latency.c	…
lockdep.c	simplify the stacktrace code	2007-05-08 11:14:58 -07:00
lockdep_internals.h	…
lockdep_proc.c	…
module.c	module: use krealloc	2007-05-08 11:15:00 -07:00
mutex-debug.c	…
mutex-debug.h	…
mutex.c	…
mutex.h	…
nsproxy.c	…
panic.c	…
params.c	remove "struct subsystem" as it is no longer needed	2007-05-02 18:57:59 -07:00
pid.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
posix-cpu-timers.c	[PATCH] posix timers: RCU optimization for clock_gettime()	2007-02-16 08:14:00 -08:00
posix-timers.c	[PATCH] hrtimers: add high resolution timer support	2007-02-16 08:13:59 -08:00
printk.c	kernel/printk.c: comment fix	2007-02-17 20:10:16 +01:00
profile.c	…
ptrace.c	…
rcupdate.c	…
rcutorture.c	[PATCH] Publish rcutorture module parameters via sysfs, read-only	2007-03-06 09:30:25 -08:00
relay.c	[PATCH] kernel-doc fixes for 2.6.20-git15 (non-drivers)	2007-03-01 14:53:37 -08:00
resource.c	libata/IDE: remove combined mode quirk	2007-04-28 14:15:59 -04:00
rtmutex-debug.c	…
rtmutex-debug.h	…
rtmutex-tester.c	…
rtmutex.c	…
rtmutex.h	…
rtmutex_common.h	…
rwsem.c	…
sched.c	Safer nr_node_ids and nr_node_ids determination and initial values	2007-05-07 12:12:51 -07:00
seccomp.c	…
signal.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
softirq.c	[PATCH] tick-management: dyntick / highres functionality	2007-02-16 08:13:59 -08:00
softlockup.c	softlockup: s/99/MAX_RT_PRIO/	2007-05-08 11:14:59 -07:00
spinlock.c	…
srcu.c	…
stacktrace.c	…
stop_machine.c	Use stop_machine_run in the Intel RNG driver	2007-05-08 11:15:00 -07:00
sys.c	remove software_suspend()	2007-05-07 12:12:59 -07:00
sys_ni.c	…
sysctl.c	Allow reading tainted flag as user	2007-04-24 08:23:08 -07:00
taskstats.c	KMEM_CACHE(): simplify slab cache creation	2007-05-07 12:12:55 -07:00
time.c	[TCP] tcp_probe: improvements for net-2.6.22	2007-04-25 22:28:10 -07:00
timer.c	[AF_RXRPC]: Make it possible to merely try to cancel timers from a module	2007-04-26 15:46:56 -07:00
tsacct.c	[PATCH] time: x86_64: split x86_64/kernel/time.c up	2007-02-16 08:14:00 -08:00
uid16.c	…
user.c	…
utsname.c	…
utsname_sysctl.c	…
wait.c	…
workqueue.c	[PATCH] Add debugging feature /proc/timer_stat	2007-02-16 08:13:59 -08:00