Prasanna S Panchamukhi d0aaff9796 [PATCH] Kprobes: prevent possible race conditions generic ... There are possible race conditions if probes are placed on routines within the kprobes files and routines used by the kprobes. For example if you put probe on get_kprobe() routines, the system can hang while inserting probes on any routine such as do_fork(). Because while inserting probes on do_fork(), register_kprobes() routine grabs the kprobes spin lock and executes get_kprobe() routine and to handle probe of get_kprobe(), kprobes_handler() gets executed and tries to grab kprobes spin lock, and spins forever. This patch avoids such possible race conditions by preventing probes on routines within the kprobes file and routines used by kprobes. I have modified the patches as per Andi Kleen's suggestion to move kprobes routines and other routines used by kprobes to a seperate section .kprobes.text. Also moved page fault and exception handlers, general protection fault to .kprobes.text section. These patches have been tested on i386, x86_64 and ppc64 architectures, also compiled on ia64 and sparc64 architectures. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-09-07 16:57:59 -07:00
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irq
power	[PATCH] introduce and use kzalloc	2005-09-07 16:57:45 -07:00
acct.c
audit.c
auditsc.c
capability.c
compat.c
configs.c
cpu.c
cpuset.c	[PATCH] cpusets: re-enable "dynamic sched domains"	2005-09-07 16:57:41 -07:00
crash_dump.c
dma.c
exec_domain.c
exit.c
extable.c
fork.c
futex.c	[PATCH] futex: remove duplicate code	2005-09-07 16:57:33 -07:00
intermodule.c	[PATCH] introduce and use kzalloc	2005-09-07 16:57:45 -07:00
itimer.c
kallsyms.c
Kconfig.hz
Kconfig.preempt
kexec.c	[PATCH] kexec: fix sparse warnings	2005-06-28 14:53:40 -07:00
kfifo.c
kmod.c
kprobes.c	[PATCH] Kprobes: prevent possible race conditions generic	2005-09-07 16:57:59 -07:00
ksysfs.c
kthread.c	[PATCH] use smp_mb/wmb/rmb where possible	2005-05-01 08:58:47 -07:00
Makefile
module.c	[PATCH] flush icache early when loading module	2005-09-07 16:57:26 -07:00
panic.c
params.c	[PATCH] introduce and use kzalloc	2005-09-07 16:57:45 -07:00
pid.c
posix-cpu-timers.c
posix-timers.c	[PATCH] fix send_sigqueue() vs thread exit race	2005-09-07 16:57:33 -07:00
printk.c
profile.c
ptrace.c	[PATCH] remove duplicated code from proc and ptrace	2005-09-07 16:57:43 -07:00
rcupdate.c
resource.c	[PATCH] introduce and use kzalloc	2005-09-07 16:57:45 -07:00
sched.c	[PATCH] cpusets: fix the "dynamic sched domains" bug	2005-09-07 16:57:41 -07:00
seccomp.c
signal.c	[PATCH] fix send_sigqueue() vs thread exit race	2005-09-07 16:57:33 -07:00
softirq.c
softlockup.c	[PATCH] detect soft lockups	2005-09-07 16:57:17 -07:00
spinlock.c
stop_machine.c
sys_ni.c
sys.c	[PATCH] remove a redundant variable in sys_prctl()	2005-09-07 16:57:32 -07:00
sysctl.c
time.c
timer.c
uid16.c
user.c
wait.c
workqueue.c	[PATCH] introduce and use kzalloc	2005-09-07 16:57:45 -07:00