Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Linus Torvalds 7558009751 Fengguang Wu discovered a crash that happened to be because of the branch ... tracer (traces unlikely and likely branches) when enabled with certain debug options. What happened was that various debug options like lockdep and DEBUG_PREEMPT can cause parts of the branch tracer to recurse outside its recursion protection. In fact, part of its recursion protection used these features that caused the lockup. This cleans up the code a little and makes the recursion protection a bit more robust. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJVovjwAAoJEEjnJuOKh9ldYacH/3VVIcBhRbuUmANZJSYLXSUh nEx6FOAfmla/7hH2dVSm8JmnbUzWyunttjbZ6/O8PFE1gumuvVrfWrIV8iwUe4J6 6Z2KdbKd+3FpaSKEnX61UQ1cfR+1eFLOLH9CH5O4twVPyLzvI+NpaJQJaNoX0ywq vqsUMx63gKdGwhC6BhLi0t/xsTuuIgGjDAjuaF2yNZCuBw9UtziedxK5pveH2OFX G8dAVfP18aqsXaRMj1LUrm6wRUP0BD7B2v99jdUu2UHYTtmBzy8Vm6RfhJ4Gk8d7 WnIkaBBU5iu75E9ec35MtA52zQ+8b8O/fpIQZgJgFRr7uaf+hvbXjF0UScWE6vU= =ujzT -----END PGP SIGNATURE----- Merge tag 'trace-v4.2-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "Fengguang Wu discovered a crash that happened to be because of the branch tracer (traces unlikely and likely branches) when enabled with certain debug options. What happened was that various debug options like lockdep and DEBUG_PREEMPT can cause parts of the branch tracer to recurse outside its recursion protection. In fact, part of its recursion protection used these features that caused the lockup. This cleans up the code a little and makes the recursion protection a bit more robust" * tag 'trace-v4.2-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Have branch tracer use recursive field of task struct		2015-07-15 11:14:10 -07:00
..
bpf	bpf: allow networking programs to use bpf_trace_printk() for debugging	2015-06-15 15:53:50 -07:00
configs	kconfig: add xenconfig defconfig helper	2015-06-16 11:04:29 +01:00
debug	debug: prevent entering debug mode on panic/exception.	2015-02-19 12:39:03 -06:00
events	perf: Fix AUX buffer refcounting	2015-07-06 14:08:30 +02:00
gcov	gcov: add support for GCC 5.1	2015-06-30 19:44:57 -07:00
irq	hotplug: Prevent alloc/free of irq descriptors during cpu up/down	2015-07-08 11:32:25 +02:00
livepatch	Merge branches 'for-4.1/upstream-fixes', 'for-4.2/kaslr' and 'for-4.2/upstream' into for-linus	2015-06-22 16:26:56 +02:00
locking	Merge branch 'sched-hrtimers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-24 15:09:40 -07:00
power	Power management and ACPI fixes for v4.2-rc1	2015-07-01 14:17:44 -07:00
printk	printk: improve the description of /dev/kmsg line format	2015-06-30 19:44:59 -07:00
rcu	This patch series contains several clean ups and even a new trace clock	2015-06-26 14:02:43 -07:00
sched	Except for the preempt notifiers fix, these are all small bugfixes	2015-07-04 11:29:59 -07:00
time	tick/broadcast: Prevent NULL pointer dereference	2015-07-11 14:26:34 +02:00
trace	tracing: Have branch tracer use recursive field of task struct	2015-07-08 11:53:45 -04:00
.gitignore
acct.c	acct: check FMODE_CAN_WRITE	2015-04-11 22:27:55 -04:00
async.c
audit.c	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-06-27 13:53:16 -07:00
audit.h	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-04-22 14:49:23 -07:00
audit_tree.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
audit_watch.c	VFS: audit: d_backing_inode() annotations	2015-04-15 15:06:55 -04:00
auditfilter.c	Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit	2015-02-11 20:07:47 -08:00
auditsc.c	Fix broken audit tests for exec arg len	2015-07-08 09:33:38 -07:00
backtracetest.c
bounds.c
capability.c	kernel: conditionally support non-root users, groups and capabilities	2015-04-15 16:35:22 -07:00
cgroup.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2015-07-03 15:20:57 -07:00
cgroup_freezer.c
compat.c	compat: cleanup coding in compat_get_bitmap() and compat_put_bitmap()	2015-06-04 23:57:18 +02:00
configs.c
context_tracking.c	context_tracking: Inherit TIF_NOHZ through forks instead of context switches	2015-05-07 12:02:51 +02:00
cpu.c	hotplug: Prevent alloc/free of irq descriptors during cpu up/down	2015-07-08 11:32:25 +02:00
cpu_pm.c
cpuset.c	kernel, cpuset: remove exception for __GFP_THISNODE	2015-04-14 16:49:03 -07:00
crash_dump.c
cred.c	kernel: conditionally support non-root users, groups and capabilities	2015-04-15 16:35:22 -07:00
delayacct.c
dma.c
elfcore.c
exec_domain.c	Remove rest of exec domains.	2015-04-12 21:03:31 +02:00
exit.c	exit,stats: /* obey this comment */	2015-06-25 17:00:43 -07:00
extable.c	ftrace/x86/extable: Add is_ftrace_trampoline() function	2014-11-19 15:25:26 -05:00
fork.c	Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2015-06-26 19:50:04 -07:00
freezer.c
futex.c	Merge branch 'sched-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-24 14:46:01 -07:00
futex_compat.c
groups.c	kernel: conditionally support non-root users, groups and capabilities	2015-04-15 16:35:22 -07:00
hung_task.c	kernel/hung_task.c: change hung_task.c to use for_each_process_thread()	2015-04-15 16:35:22 -07:00
irq_work.c	percpu: Convert remaining __get_cpu_var uses in 3.18-rcX	2014-10-29 11:18:18 -04:00
jump_label.c	module, jump_label: Fix module locking	2015-05-27 11:09:50 +09:30
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks	locking/qrwlock: Rename QUEUE_RWLOCK to QUEUED_RWLOCKS	2015-05-12 09:46:00 +02:00
Kconfig.preempt
kexec.c	kernel/panic/kexec: fix "crash_kexec_post_notifiers" option issue in oops path	2015-06-30 19:44:57 -07:00
kmod.c	usermodehelper: kill the kmod_thread_locker logic	2014-12-10 17:41:17 -08:00
kprobes.c	kprobes: makes kprobes/enabled works correctly for optimized kprobes.	2015-02-13 21:21:42 -08:00
ksysfs.c
kthread.c
latencytop.c
Makefile	make certificate list change message more useful	2015-07-02 16:42:13 -07:00
module-internal.h
module.c	module: Fix load_module() error path	2015-07-09 06:57:12 +09:30
module_signing.c
notifier.c	rcu: Make SRCU optional by using CONFIG_SRCU	2015-01-06 11:04:29 -08:00
nsproxy.c	bury struct proc_ns in fs/proc	2014-12-04 14:34:54 -05:00
padata.c	padata: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:38 -08:00
panic.c	kernel/panic/kexec: fix "crash_kexec_post_notifiers" option issue in oops path	2015-06-30 19:44:57 -07:00
params.c	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
pid.c	fork: report pid reservation failure properly	2015-04-17 09:04:06 -04:00
pid_namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-16 15:53:03 -08:00
profile.c	profile: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:38 -08:00
ptrace.c	ptrace: ptrace_detach() can no longer race with SIGKILL	2015-04-17 09:04:06 -04:00
range.c	kernel: avoid overflow in cmp_range	2015-01-17 10:02:23 +13:00
reboot.c	kernel/reboot.c: add orderly_reboot for graceful reboot	2015-04-15 16:35:23 -07:00
relay.c	kernel/relay.c: use kvfree() in relay_free_page_array()	2015-06-30 19:44:59 -07:00
resource.c	kernel/resource.c: remove deprecated __check_region() and friends	2015-04-15 16:35:22 -07:00
seccomp.c	seccomp, filter: add and use bpf_prog_create_from_user from seccomp	2015-05-09 17:35:05 -04:00
signal.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2015-06-27 13:26:03 -07:00
smp.c	smp: Fix error case handling in smp_call_function_*()	2015-04-19 13:19:23 -07:00
smpboot.c	watchdog: add watchdog_cpumask sysctl to assist nohz	2015-06-24 17:49:40 -07:00
smpboot.h
softirq.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-02-09 15:24:03 -08:00
stacktrace.c	stacktrace: introduce snprint_stack_trace for buffer output	2014-12-13 12:42:48 -08:00
stop_machine.c	sched/stop_machine: Fix deadlock between multiple stop_two_cpus()	2015-06-19 10:03:12 +02:00
sys.c	prctl: more prctl(PR_SET_MM_*) checks	2015-06-25 17:00:37 -07:00
sys_ni.c	kernel: conditionally support non-root users, groups and capabilities	2015-04-15 16:35:22 -07:00
sysctl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2015-07-03 15:20:57 -07:00
sysctl_binary.c	kernel: add panic_on_warn	2014-12-10 17:41:10 -08:00
system_certificates.S
system_keyring.c
task_work.c
taskstats.c	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
test_kprobes.c
torture.c	rcu: Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE()	2015-05-27 12:56:15 -07:00
tracepoint.c
tsacct.c
uid16.c	groups: Consolidate the setgroups permission checks	2014-12-05 17:19:27 -06:00
up.c
user-return-notifier.c
user.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2014-12-17 12:31:40 -08:00
user_namespace.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2014-12-17 12:31:40 -08:00
utsname.c	copy address of proc_ns_ops into ns_common	2014-12-04 14:34:47 -05:00
utsname_sysctl.c
watchdog.c	watchdog: add watchdog_cpumask sysctl to assist nohz	2015-06-24 17:49:40 -07:00
workqueue.c	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
workqueue_internal.h