Roland McGrath fec1d01152 [PATCH] Disable CLONE_CHILD_CLEARTID for abnormal exit ... The CLONE_CHILD_CLEARTID flag is used by NPTL to have its threads communicate via memory/futex when they exit, so pthread_join can synchronize using a simple futex wait. The word of user memory where NPTL stores a thread's own TID is what it passes; this gets reset to zero at thread exit. It is not desireable to touch this user memory when threads are dying due to a fatal signal. A core dump is more usefully representative of the dying program state if the threads live at the time of the crash have their NPTL data structures unperturbed. The userland expectation of CLONE_CHILD_CLEARTID has only ever been that it works for a thread making an _exit system call. This problem was identified by Ernie Petrides <petrides@redhat.com>. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Ernie Petrides <petrides@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-12-07 08:39:33 -08:00
..
irq
power	[PATCH] Export pm_suspend for the shared APM emulation	2006-12-07 08:39:32 -08:00
time
.gitignore
acct.c
audit.c	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	2006-12-07 08:39:27 -08:00
audit.h
auditfilter.c
auditsc.c	[PATCH] severing skbuff.h -> highmem.h	2006-12-04 02:00:29 -05:00
capability.c
compat.c
configs.c
cpu.c	[PATCH] suspend: don't change cpus_allowed for task initiating the suspend	2006-12-07 08:39:28 -08:00
cpuset.c	[PATCH] cpuset: minor code refinements	2006-12-07 08:39:32 -08:00
delayacct.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
dma.c
exec_domain.c
exit.c
extable.c
fork.c	[PATCH] Disable CLONE_CHILD_CLEARTID for abnormal exit	2006-12-07 08:39:33 -08:00
futex_compat.c
futex.c	[PATCH] mm: pagefault_{disable,enable}()	2006-12-07 08:39:21 -08:00
hrtimer.c
itimer.c
kallsyms.c	[PATCH] /proc/kallsyms reports lower-case types for some non-exported symbols	2006-12-07 08:39:31 -08:00
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kmod.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	2006-12-05 14:37:56 +00:00
kprobes.c
ksysfs.c
kthread.c
latency.c	[PATCH] severing module.h->sched.h	2006-12-04 02:00:22 -05:00
lockdep_internals.h
lockdep_proc.c
lockdep.c	[PATCH] lockdep: misc fixes in lockdep.c	2006-12-07 08:39:33 -08:00
Makefile
module.c	[PATCH] severing module.h->sched.h	2006-12-04 02:00:22 -05:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
nsproxy.c
panic.c
params.c
pid.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
posix-cpu-timers.c
posix-timers.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
printk.c
profile.c
ptrace.c
rcupdate.c
rcutorture.c
relay.c
resource.c
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	2006-12-07 08:39:27 -08:00
rtmutex.c
rtmutex.h
rwsem.c
sched.c	[PATCH] SysRq-X: show blocked tasks	2006-12-07 08:39:32 -08:00
seccomp.c
signal.c	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	2006-12-07 08:39:27 -08:00
softirq.c
softlockup.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c
sys.c
sysctl.c	[PATCH] new scheme to preempt swap token	2006-12-07 08:39:21 -08:00
taskstats.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
time.c
timer.c
tsacct.c
uid16.c
unwind.c
user.c	[PATCH] slab: remove kmem_cache_t	2006-12-07 08:39:25 -08:00
utsname.c
wait.c
workqueue.c	[PATCH] Support for freezeable workqueues	2006-12-07 08:39:29 -08:00