Will Deacon 84b5ec8a9d printk: report dropping of messages from logbuf ... If the log ring buffer becomes full, we silently overwrite old messages with new data. console_unlock will detect this case and fast-forward the console_* pointers to skip over the corrupted data, but nothing will be reported to the user. This patch hijacks the first valid log message after detecting that we dropped messages and prefixes it with a note detailing how many messages were dropped. For long (~1000 char) messages, this will result in some truncation of the real message, but given that we're dropping things anyway, that doesn't seem to be the end of the world. Signed-off-by: Will Deacon <will.deacon@arm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Kay Sievers <kay@vrfy.org> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-06-04 16:54:17 -07:00
..
debug	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
events	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 13:18:00 -07:00
gcov
irq	genirq: x86: Ensure that dynamic irq allocation does not conflict	2014-04-28 12:20:00 +02:00
locking	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 14:00:15 -07:00
power	Merge branches 'pnp', 'powercap', 'pm-runtime' and 'pm-opp'	2014-06-03 23:13:00 +02:00
printk	printk: report dropping of messages from logbuf	2014-06-04 16:54:17 -07:00
rcu	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 12:57:53 -07:00
sched	printk: Add printk_deferred_once	2014-06-04 16:54:17 -07:00
time	timekeeping: use printk_deferred when holding timekeeping seqlock	2014-06-04 16:54:17 -07:00
trace	tracing: Use rcu_dereference_sched() for trace event triggers	2014-05-02 23:12:42 -04:00
.gitignore
acct.c
async.c
audit_tree.c	inotify: Fix reporting of cookies for inotify events	2014-02-18 11:17:17 +01:00
audit_watch.c	inotify: Fix reporting of cookies for inotify events	2014-02-18 11:17:17 +01:00
audit.c	net: Use netlink_ns_capable to verify the permisions of netlink messages	2014-04-24 13:44:54 -04:00
audit.h	audit: Use struct net not pid_t to remember the network namespce to reply in	2014-03-20 10:10:53 -04:00
auditfilter.c	Merge git://git.infradead.org/users/eparis/audit	2014-04-12 12:38:53 -07:00
auditsc.c	Merge git://git.infradead.org/users/eparis/audit	2014-04-12 12:38:53 -07:00
backtracetest.c	kernel/backtracetest.c: replace no level printk by pr_info()	2014-06-04 16:54:14 -07:00
bounds.c
capability.c	kernel/capability.c: code clean-up	2014-06-04 16:54:15 -07:00
cgroup_freezer.c	cgroup: fix rcu_read_lock() leak in update_if_frozen()	2014-05-13 11:28:30 -04:00
cgroup.c	kernfs: move the last knowledge of sysfs out from kernfs	2014-05-27 14:33:17 -07:00
compat.c	Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-04-02 12:51:41 -07:00
configs.c
context_tracking.c	asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/*	2014-05-05 16:07:46 -07:00
cpu_pm.c
cpu.c	kernel/cpu.c: convert printk to pr_foo()	2014-06-04 16:54:14 -07:00
cpuset.c	mm: page_alloc: use jump labels to avoid checking number_of_cpusets	2014-06-04 16:54:08 -07:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c	kernel/exec_domain.c: code clean-up	2014-06-04 16:54:15 -07:00
exit.c	memcg: optimize the "Search everything else" loop in mm_update_next_owner()	2014-06-04 16:54:03 -07:00
extable.c	asmlinkage: Make main_extable_sort_needed visible	2014-02-13 18:13:22 -08:00
fork.c	memcg: kill CONFIG_MM_OWNER	2014-06-04 16:54:01 -07:00
freezer.c
futex_compat.c	compat: Get rid of (get|put)_compat_time(val|spec)	2014-02-02 14:09:12 -08:00
futex.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 12:57:53 -07:00
groups.c	kernel/groups.c: remove return value of set_groups	2014-04-03 16:21:05 -07:00
hrtimer.c	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 13:18:00 -07:00
hung_task.c	kernel/hung_task.c: convert simple_strtoul to kstrtouint	2014-06-04 16:54:15 -07:00
irq_work.c	perf/x86: Warn to early_printk() in case irq_work is too slow	2014-02-21 21:49:07 +01:00
itimer.c
jump_label.c
kallsyms.c	kernel: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:36:11 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec.c	powerpc, kexec: Fix "Processor X is stuck" issue during kexec from ST mode	2014-05-28 13:24:26 +10:00
kmod.c	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
kprobes.c
ksysfs.c	kobject: Make support for uevent_helper optional.	2014-04-25 12:00:49 -07:00
kthread.c	kthread: fix return value of kthread_create() upon SIGKILL.	2014-06-04 16:53:51 -07:00
latencytop.c	kernel/latencytop.c: convert seq_printf to seq_puts	2014-06-04 16:54:15 -07:00
Makefile	Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-03-31 14:13:25 -07:00
module_signing.c
module-internal.h
module.c	Fixed one missing place for the new taint flag, and remove a warning	2014-05-01 10:35:01 -07:00
notifier.c	notifier: Substitute rcu_access_pointer() for rcu_dereference_raw()	2014-02-26 06:35:13 -08:00
nsproxy.c
padata.c
panic.c	kernel/panic.c: display reason at end + pr_emerg	2014-04-07 16:36:08 -07:00
params.c
pid_namespace.c	pid_namespace: pidns_get() should check task_active_pid_ns() != NULL	2014-04-02 16:20:21 -07:00
pid.c
posix-cpu-timers.c
posix-timers.c
profile.c	CPU hotplug notifiers registration fixes for 3.15-rc1	2014-04-07 14:55:46 -07:00
ptrace.c	kernel/compat: convert to COMPAT_SYSCALL_DEFINE	2014-03-06 15:35:10 +01:00
range.c
reboot.c	kernel/reboot.c: convert simple_strtoul to kstrtoint	2014-06-04 16:54:15 -07:00
relay.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-04-12 14:49:50 -07:00
res_counter.c	kernel/res_counter.c: replace simple_strtoull by kstrtoull	2014-06-04 16:54:15 -07:00
resource.c	resources: Clarify sanity check message	2014-05-23 10:47:21 -06:00
seccomp.c	seccomp: fix memory leak on filter attach	2014-04-16 15:25:53 -04:00
signal.c	sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL	2014-06-04 16:54:14 -07:00
smp.c	smp: Rename __smp_call_function_single() to smp_call_function_single_async()	2014-02-24 14:47:15 -08:00
smpboot.c
smpboot.h
softirq.c	Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu	2014-05-22 11:36:10 +02:00
stacktrace.c
stop_machine.c	kernel/stop_machine.c: kernel-doc warning fix	2014-06-04 16:54:15 -07:00
sys_ni.c	sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL	2014-06-04 16:54:14 -07:00
sys.c	sched: Consolidate open coded implementations of nice level frobbing into nice_to_rlimit() and rlimit_to_nice()	2014-05-22 11:16:36 +02:00
sysctl_binary.c
sysctl.c	kobject: Make support for uevent_helper optional.	2014-04-25 12:00:49 -07:00
system_certificates.S
system_keyring.c
task_work.c
taskstats.c
test_kprobes.c
time.c
timeconst.bc
timer.c	timer: Prevent overflow in apply_slack	2014-04-30 13:46:17 +02:00
torture.c	torture: Remove __init from torture_init_begin/end	2014-05-14 09:46:30 -07:00
tracepoint.c	kernel/tracepoint.c: kernel-doc fixes	2014-06-04 16:54:15 -07:00
tsacct.c
uid16.c
up.c	smp: Rename __smp_call_function_single() to smp_call_function_single_async()	2014-02-24 14:47:15 -08:00
user_namespace.c	user namespace: fix incorrect memory barriers	2014-04-14 16:03:02 -07:00
user-return-notifier.c
user.c	kernel/user.c: drop unused field 'files' from user_struct	2014-06-04 16:54:16 -07:00
utsname_sysctl.c	kernel/utsname_sysctl.c: replace obsolete __initcall by device_initcall	2014-06-04 16:54:15 -07:00
utsname.c
watchdog.c	kernel/watchdog.c:touch_softlockup_watchdog(): use raw_cpu_write()	2014-04-18 16:40:08 -07:00
workqueue_internal.h
workqueue.c	Linux 3.15-rc6	2014-05-22 10:28:56 +02:00