Fabio M. Di Nitto 7bf693951a console: allow to retain boot console via boot option keep_bootcon ... On some architectures, the boot process involves de-registering the boot console (early boot), initialize drivers and then re-register the console. This mechanism introduces a window in which no printk can happen on the console and messages are buffered and then printed once the new console is available. If a kernel crashes during this window, all it's left on the boot console is "console [foo] enabled, bootconsole disabled" making debug of the crash rather 'interesting'. By adding "keep_bootcon" option, do not unregister the boot console, that will allow to printk everything that is happening up to the crash. The option is clearly meant only for debugging purposes as it introduces lots of duplicated info printed on console, but will make bug report from users easier as it doesn't require a kernel build just to figure out where we crash. Signed-off-by: Fabio M. Di Nitto <fabbione@fabbione.net> Acked-by: David S. Miller <davem@davemloft.net> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg KH <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-03-22 17:44:12 -07:00
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ABI	ST SPEAr: PCIE gadget suppport	2011-03-22 17:44:10 -07:00
accounting
acpi
aoe
arm	Merge branch 'remove' of master.kernel.org:/home/rmk/linux-2.6-arm	2011-03-16 19:05:40 -07:00
auxdisplay
blackfin
block
blockdev
cdrom
cgroups	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-03-18 10:37:40 -07:00
connector
console
cpu-freq	[CPUFREQ] Add documentation for sampling_down_factor	2011-03-16 17:54:31 -04:00
cpuidle
cris
crypto
development-process
device-mapper
devicetree	Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging	2011-03-21 14:02:55 -07:00
DocBook
driver-model
dvb
early-userspace
fault-injection
fb
filesystems	Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs	2011-03-21 14:24:56 -07:00
firmware_class
frv
hwmon	hwmon: (ads1015) Make gain and datarate configurable	2011-03-21 17:59:37 +01:00
i2c	Merge branch 'for-linus/2639/i2c-2' of git://git.fluff.org/bjdooks/linux	2011-03-22 10:05:27 -07:00
i2o
ia64
ide
infiniband
input
ioctl
isdn
ja_JP
kbuild	Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6	2011-03-21 15:55:26 -07:00
kdump
ko_KR
kvm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-03-18 10:37:40 -07:00
laptops	Move hp_accel to drivers/platform/x86	2011-03-21 17:59:36 +01:00
leds
lguest
m68k
make
mips
misc-devices	ST SPEAr: PCIE gadget suppport	2011-03-22 17:44:10 -07:00
mmc
mn10300
mtd
namespaces
netlabel
networking	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2011-03-15 15:15:17 -07:00
nfc
parisc
PCI
pcmcia
power	PM: Documentation/power/states.txt: fix repetition	2011-03-15 00:43:17 +01:00
powerpc	Documentation: add devicetree docs index file	2011-03-16 10:47:03 -07:00
pps
prctl
RCU	rcu: add documentation saying which RCU flavor to choose	2011-03-04 08:05:25 -08:00
s390
scheduler
scsi	[SCSI] hpsa: export resettable host attribute	2011-03-14 18:44:41 -05:00
serial	n_gsm: add a documentation	2011-03-09 15:43:38 -08:00
sh
sound
sparc
spi
sysctl	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-03-18 10:37:40 -07:00
target
telephony
thermal
timers
trace	tracing: Add an 'overwrite' trace_option.	2011-03-09 13:52:27 -05:00
uml
usb
video4linux	i2c: Get rid of <linux/i2c-id.h>	2011-03-20 14:50:52 +01:00
vm	doc: CONFIG_UNEVICTABLE_LRU doesn't exist anymore	2011-03-17 00:37:19 +01:00
w1
watchdog
wimax
x86	move x86 specific oops=panic to generic code	2011-03-22 17:44:11 -07:00
zh_CN
.gitignore
00-INDEX	Documentation: remove obsolete files from 00-INDEX	2011-03-16 10:47:03 -07:00
apparmor.txt
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
coccinelle.txt
CodingStyle	Documentation: update header filename in CodingStyle	2011-03-16 10:47:03 -07:00
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
credentials.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
DMA-ISA-LPC.txt
dmaengine.txt
dontdiff
dynamic-debug-howto.txt
edac.txt
eisa.txt
email-clients.txt
feature-removal-schedule.txt	i2c: Drop i2c_adapter.id	2011-03-20 14:50:53 +01:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt
highuid.txt
HOWTO
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	console: allow to retain boot console via boot option keep_bootcon	2011-03-22 17:44:12 -07:00
keys-request-key.txt	KEYS: Add a new keyctl op to reject a key with a specified error code	2011-03-08 11:17:18 +11:00
keys-trusted-encrypted.txt
keys.txt	KEYS: Add an iovec version of KEYCTL_INSTANTIATE	2011-03-08 11:17:22 +11:00
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt	kref: Fix typo in kref documentation	2011-03-07 13:20:05 -08:00
ldm.txt
leds-class.txt
leds-lp3944.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle
mca.txt
md.txt
memory-barriers.txt	smp: Document transitivity for memory barriers.	2011-03-04 08:05:49 -08:00
memory-hotplug.txt
memory.txt
mono.txt
mutex-design.txt
nmi_watchdog.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
rbtree.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt	RTC: Fix up rtc.txt documentation to reflect changes to generic rtc layer	2011-03-09 11:25:10 -08:00
SAK.txt
SecurityBugs
SELinux.txt
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
Smack.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt
tomoyo.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
volatile-considered-harmful.txt
workqueue.txt
xz.txt
zorro.txt