Bernhard Kaindl f212ec4b7b x86: early boot debugging via FireWire (ohci1394_dma=early) ... This patch adds a new configuration option, which adds support for a new early_param which gets checked in arch/x86/kernel/setup_{32,64}.c:setup_arch() to decide wether OHCI-1394 FireWire controllers should be initialized and enabled for physical DMA access to allow remote debugging of early problems like issues ACPI or other subsystems which are executed very early. If the config option is not enabled, no code is changed, and if the boot paramenter is not given, no new code is executed, and independent of that, all new code is freed after boot, so the config option can be even enabled in standard, non-debug kernels. With specialized tools, it is then possible to get debugging information from machines which have no serial ports (notebooks) such as the printk buffer contents, or any data which can be referenced from global pointers, if it is stored below the 4GB limit and even memory dumps of of the physical RAM region below the 4GB limit can be taken without any cooperation from the CPU of the host, so the machine can be crashed early, it does not matter. In the extreme, even kernel debuggers can be accessed in this way. I wrote a small kgdb module and an accompanying gdb stub for FireWire which allows to gdb to talk to kgdb using remote remory reads and writes over FireWire. An version of the gdb stub fore FireWire is able to read all global data from a system which is running a a normal kernel without any kernel debugger, without any interruption or support of the system's CPU. That way, e.g. the task struct and so on can be read and even manipulated when the physical DMA access is granted. A HOWTO is included in this patch, in Documentation/debugging-via-ohci1394.txt and I've put a copy online at ftp://ftp.suse.de/private/bk/firewire/docs/debugging-via-ohci1394.txt It also has links to all the tools which are available to make use of it another copy of it is online at: ftp://ftp.suse.de/private/bk/firewire/kernel/ohci1394_dma_early-v2.diff Signed-Off-By: Bernhard Kaindl <bk@suse.de> Tested-By: Thomas Renninger <trenn@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2008-01-30 13:34:11 +01:00
..
amba
byteorder
can
dvb
hdlc
i2c
isdn
lockd	NLM: Introduce an arguments structure for nlmclnt_init()	2008-01-30 02:06:07 -05:00
mlx4
mmc
mtd
netfilter	[NETFILTER]: nf_conntrack_sctp: remove unused ttag field from conntrack data	2008-01-28 15:02:38 -08:00
netfilter_arp
netfilter_bridge
netfilter_ipv4	[NETFILTER]: Rename ipt_iprange to xt_iprange	2008-01-28 15:02:27 -08:00
netfilter_ipv6
nfsd
raid
rtc
spi
ssb	ssb: Add boardflags_hi field to the sprom data structure	2008-01-28 15:09:52 -08:00
sunrpc	SUNRPC: Use appropriate argument types in rpcb client	2008-01-30 02:06:09 -05:00
tc_act
tc_ematch
usb
8250_pci.h
a.out.h
ac97_codec.h
acct.h
acpi.h
acpi_pmtmr.h	x86: move pmtmr related declarations	2008-01-30 13:30:18 +01:00
adb.h
adfs_fs.h
adfs_fs_i.h
adfs_fs_sb.h
aer.h
affs_hardblocks.h
agp_backend.h
agpgart.h
aio.h
aio_abi.h
amifd.h
amifdreg.h
amigaffs.h
anon_inodes.h
apm-emulation.h
apm_bios.h
arcdevice.h
arcfb.h
async_tx.h
ata.h
atalk.h
atm.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_suni.h
atm_tcp.h
atm_zatm.h
atmapi.h
atmarp.h
atmbr2684.h	[ATM]: [br2864] whitespace cleanup	2008-01-28 15:00:14 -08:00
atmclip.h
atmdev.h	[ATM]: Convert struct class_device to struct device	2008-01-28 15:00:12 -08:00
atmel-ssc.h
atmel_pdc.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
attribute_container.h
audit.h
auto_fs.h
auto_fs4.h
auxvec.h
ax25.h
b1lli.h
b1pcmcia.h
backing-dev.h
backlight.h
baycom.h
bcd.h
bfs_fs.h
binfmts.h
bio.h
bit_spinlock.h
bitmap.h
bitops.h
bitrev.h
blkdev.h	block: fix warning on compile with CONFIG_BLOCK	2008-01-29 21:55:14 +01:00
blkpg.h
blktrace_api.h	Fix blktrace compile warning	2008-01-29 21:55:15 +01:00
blockgroup_lock.h
bootmem.h
bottom_half.h
bpqether.h
bsg.h
buffer_head.h	Add buffer head related helper functions	2008-01-28 23:58:26 -05:00
bug.h
cache.h
calc64.h
can.h
capability.h
capi.h
cciss_ioctl.h
cd1400.h
cdev.h
cdk.h
cdrom.h
cfag12864b.h
cgroup.h
cgroup_subsys.h
cgroupstats.h
chio.h
circ_buf.h
clk.h
clockchips.h
clocksource.h	clocksource: add unregister function to disable unusable clocksources	2008-01-30 13:30:02 +01:00
cm4000_cs.h
cn_proc.h
coda.h
coda_cache.h
coda_fs_i.h
coda_linux.h
coda_psdev.h
coff.h
com20020.h
compat.h	x86: compat_sys_ptrace	2008-01-30 13:31:48 +01:00
compiler-gcc.h
compiler-gcc3.h
compiler-gcc4.h
compiler-intel.h
compiler.h
completion.h
comstats.h
concap.h
configfs.h
connector.h	[CONNECTOR]: Cleanup struct cn_callback_entry	2008-01-28 15:00:40 -08:00
console.h
console_struct.h
consolemap.h
const.h	x86: add _AT() macro to conditionally cast	2008-01-30 13:32:42 +01:00
cpu.h
cpufreq.h
cpuidle.h
cpumask.h	x86: avoid build warning	2008-01-30 13:31:10 +01:00
cpuset.h
cramfs_fs.h
cramfs_fs_sb.h
crash_dump.h
crc-ccitt.h
crc-itu-t.h
crc7.h
crc16.h
crc32.h
crc32c.h
crypto.h
cryptohash.h
ctype.h
cuda.h
cyclades.h
cyclomx.h
cycx_cfm.h
cycx_drv.h
cycx_x25.h
dca.h
dcache.h
dccp.h
dcookies.h
debug_locks.h
debugfs.h
delay.h
delayacct.h
device-mapper.h
device.h
devpts_fs.h
dio.h
dirent.h
display.h
dlm.h
dlm_device.h
dlm_netlink.h
dlmconstants.h
dm-ioctl.h
dm9000.h
dma-mapping.h
dmaengine.h
dmapool.h
dmar.h
dmi.h
dn.h
dnotify.h
dqblk_v1.h
dqblk_v2.h
dqblk_xfs.h
ds1wm.h
ds1286.h
ds17287rtc.h
dtlk.h
edac.h
edd.h
eeprom_93cx6.h
efi.h
efs_dir.h
efs_fs.h
efs_fs_i.h
efs_fs_sb.h
efs_vh.h
eisa.h
elevator.h
elf-em.h
elf-fdpic.h
elf.h	x86: x86 core dump TLS	2008-01-30 13:31:56 +01:00
elfcore-compat.h
elfcore.h
elfnote.h
err.h
errno.h
errqueue.h
etherdevice.h
ethtool.h
eventfd.h
eventpoll.h
exportfs.h
ext2_fs.h
ext2_fs_sb.h
ext3_fs.h
ext3_fs_i.h
ext3_fs_sb.h
ext3_jbd.h
ext4_fs.h	ext4: Add multi block allocator for ext4	2008-01-29 00:19:52 -05:00
ext4_fs_extents.h	ext4: Add new functions for searching extent tree	2008-01-28 23:58:27 -05:00
ext4_fs_i.h	ext4: Add multi block allocator for ext4	2008-01-29 00:19:52 -05:00
ext4_fs_sb.h	ext4: Add multi block allocator for ext4	2008-01-29 00:19:52 -05:00
ext4_jbd2.h
f75375s.h
fadvise.h
falloc.h
fault-inject.h
fb.h
fcdevice.h
fcntl.h
fd.h
fd1772.h
fddidevice.h
fdreg.h
fib_rules.h
file.h
filter.h
firewire-cdev.h
firewire-constants.h
firmware.h
flat.h
font.h
freezer.h
fs.h	ext4: Add inode version support in ext4	2008-01-28 23:58:27 -05:00
fs_enet_pd.h
fs_stack.h
fs_struct.h
fs_uart_pd.h
fsl_devices.h
fsnotify.h
fuse.h
futex.h
gameport.h
gen_stats.h
genalloc.h
generic_acl.h
generic_serial.h
genetlink.h
genhd.h
getcpu.h
gfp.h
gfs2_ondisk.h
gigaset_dev.h
gpio_keys.h
gpio_mouse.h
hardirq.h
harrier_defs.h
hash.h
hayesesp.h
hdlc.h
hdlcdrv.h
hdpu_features.h
hdreg.h
hdsmart.h
hid-debug.h
hid.h
hiddev.h
hidraw.h
highmem.h
highuid.h
hil.h
hil_mlc.h
hippidevice.h
hp_sdc.h
hpet.h	x86: nuke a ton of dead hpet code	2008-01-30 13:30:27 +01:00
hrtimer.h
htirq.h
hugetlb.h
hw_random.h
hwmon-sysfs.h
hwmon-vid.h
hwmon.h
hysdn_if.h
i2c-algo-bit.h
i2c-algo-pca.h
i2c-algo-pcf.h
i2c-algo-sgi.h
i2c-dev.h
i2c-gpio.h
i2c-id.h
i2c-ocores.h
i2c-pnx.h
i2c-pxa.h
i2c.h
i2o-dev.h
i2o.h
i8k.h
i8042.h
ibmtr.h
icmp.h
icmpv6.h
ide.h
idr.h
ieee80211.h	mac80211: fixing ieee80211_bar types	2008-01-28 15:10:45 -08:00
if.h
if_addr.h
if_addrlabel.h
if_arcnet.h
if_arp.h
if_bonding.h
if_bridge.h
if_cablemodem.h
if_ec.h
if_eql.h
if_ether.h	[ETHER]: Bring back MAC_FMT	2008-01-28 15:08:27 -08:00
if_fc.h
if_fddi.h
if_frad.h	annotate the rest of drivers/net/wan	2008-01-28 15:07:58 -08:00
if_hippi.h
if_infiniband.h
if_link.h
if_ltalk.h
if_macvlan.h
if_packet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h
if_slip.h
if_strip.h
if_tr.h
if_tun.h	annotate tun	2008-01-28 15:07:57 -08:00
if_tunnel.h
if_vlan.h	[VLAN]: Turn __constant_htons into htons where possible	2008-01-28 15:08:32 -08:00
if_wanpipe.h
igmp.h
in.h	[IPV4]: Enable use of 240/4 address space.	2008-01-28 15:08:44 -08:00
in6.h
in_route.h
inet.h
inet_diag.h
inet_lro.h
inetdevice.h	[NETNS]: Add namespace parameter to ip_dev_find.	2008-01-28 15:11:04 -08:00
init.h
init_ohci1394_dma.h	x86: early boot debugging via FireWire (ohci1394_dma=early)	2008-01-30 13:34:11 +01:00
init_task.h
initrd.h
inotify.h
input-polldev.h
input.h
interrupt.h
io.h
ioc3.h
ioc4.h
iocontext.h
ioctl.h
ioport.h	x86: remove extern declarations for code, data, bss resources	2008-01-30 13:30:32 +01:00
ioprio.h
ip.h
ip6_tunnel.h
ipc.h
ipmi.h
ipmi_msgdefs.h
ipmi_smi.h
ipsec.h
ipv6.h
ipv6_route.h
ipx.h
irda.h
irq.h
irq_cpustat.h
irqflags.h
irqreturn.h
isa.h
isapnp.h
isdn.h
isdn_divertif.h
isdn_ppp.h
isdnif.h
isicom.h
iso_fs.h
istallion.h
ivtv.h
ivtvfb.h
ixjuser.h
jbd.h
jbd2.h	jbd2: add lockdep support	2008-01-28 23:58:27 -05:00
jffs2.h
jhash.h
jiffies.h
journal-head.h
joystick.h
kallsyms.h
kbd_diacr.h
kbd_kern.h
Kbuild	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25	2008-01-29 22:54:01 +11:00
kd.h
kdebug.h
kdev_t.h
kernel.h	x86: make early printk selectable on 64-bit as well	2008-01-30 13:33:06 +01:00
kernel_stat.h
kernelcapi.h
kexec.h
key-type.h
key-ui.h
key.h
keyboard.h
keyctl.h
kfifo.h
klist.h
kmalloc_sizes.h
kmod.h
kobj_map.h
kobject.h
kprobes.h	x86: kprobes: add kprobes smoke tests that run on boot	2008-01-30 13:32:53 +01:00
kref.h
ks0108.h
kthread.h
ktime.h
kvm.h
kvm_para.h
lapb.h
latency.h
latencytop.h
lcd.h
leds.h
lguest.h
lguest_launcher.h
libata.h
libps2.h
license.h
limits.h
linkage.h	x86: add ENDPROC() markers	2008-01-30 13:33:13 +01:00
linux_logo.h
list.h
llc.h
lm_interface.h
lock_dlm_plock.h
lockdep.h
log2.h
loop.h
lp.h
lzo.h
m48t86.h
magic.h
major.h
maple.h
marker.h
matroxfb.h
mbcache.h
mc6821.h
mc146818rtc.h
mca-legacy.h
mca.h
mdio-bitbang.h
memory.h
memory_hotplug.h
mempolicy.h
mempool.h
meye.h
migrate.h
mii.h
minix_fs.h
miscdevice.h
mm.h	x86: do not PSE on CONFIG_DEBUG_PAGEALLOC=y	2008-01-30 13:33:58 +01:00
mm_inline.h
mm_types.h
mman.h
mmtimer.h
mmzone.h
mnt_namespace.h
mod_devicetable.h
module.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild	2008-01-29 22:46:14 +11:00
moduleloader.h
moduleparam.h
mount.h
mpage.h
mqueue.h
mroute.h
msdos_fs.h
msg.h
msi.h
mtio.h
mutex-debug.h
mutex.h
mv643xx.h
mv643xx_eth.h
mv643xx_i2c.h
n_r3964.h
namei.h
nbd.h
ncp.h
ncp_fs.h
ncp_fs_i.h
ncp_fs_sb.h
ncp_mount.h
ncp_no.h
neighbour.h
net.h
netdevice.h
netfilter.h	[NETFILTER]: Extend nf_inet_addr with in{,6}_addr	2008-01-28 15:02:22 -08:00
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h	[NETNS]: Consolidate kernel netlink socket destruction.	2008-01-28 15:08:07 -08:00
netpoll.h
netrom.h
nfs.h
nfs2.h
nfs3.h
nfs4.h
nfs4_acl.h
nfs4_mount.h
nfs_fs.h	nfs: convert NFS_*(inode) helpers to static inline	2008-01-30 02:06:11 -05:00
nfs_fs_i.h
nfs_fs_sb.h	NFS: Invoke nlmclnt_init during NFS mount processing	2008-01-30 02:06:07 -05:00
nfs_idmap.h
nfs_mount.h
nfs_page.h	NFS: Clean up the write request locking.	2008-01-30 02:05:24 -05:00
nfs_xdr.h	NFS: NFS version number is unsigned	2008-01-30 02:06:08 -05:00
nfsacl.h
nfsd_idmap.h
nl80211.h	cfg80211/nl80211: implement station attribute retrieval	2008-01-28 14:59:52 -08:00
nls.h
nmi.h
node.h
nodemask.h
notifier.h
nsc_gpio.h
nsproxy.h
nubus.h
numa.h
nvram.h
of.h
of_device.h
of_platform.h
oom.h
oprofile.h
page-flags.h
page-isolation.h
pageblock-flags.h
pagemap.h
pagevec.h
param.h
parport.h
parport_pc.h
parser.h
pata_platform.h
patchkey.h
pci-acpi.h
pci.h
pci_hotplug.h
pci_ids.h	pci: add PCI identifiers for the RDC devices	2008-01-30 13:33:36 +01:00
pci_regs.h
pcieport_if.h
pcounter.h	[LIB] pcounter : unline too big functions	2008-01-28 15:00:35 -08:00
pda_power.h
percpu.h	percpu: move arch XX_PER_CPU_XX definitions into linux/percpu.h	2008-01-30 13:32:52 +01:00
percpu_counter.h
personality.h
pfkeyv2.h
pfn.h
pg.h
phantom.h
phonedev.h
phy.h
phy_fixed.h
pid.h
pid_namespace.h
pipe_fs_i.h
pkt_cls.h
pkt_sched.h	[NET_SCHED]: sch_api: introduce constant for rate table size	2008-01-28 15:11:21 -08:00
pktcdvd.h
platform_device.h
plist.h
pm.h
pm_legacy.h
pmu.h
pnp.h
pnpbios.h
poison.h
poll.h
posix-timers.h
posix_acl.h
posix_acl_xattr.h
posix_types.h
power_supply.h
ppdev.h
ppp-comp.h
ppp_channel.h
ppp_defs.h
prctl.h
preempt.h
prefetch.h
prio_heap.h
prio_tree.h
proc_fs.h	[ATM]: Oops reading net/atm/arp	2008-01-28 15:01:36 -08:00
profile.h
proportions.h
ps2esdi.h
ptrace.h	ptrace: generic PTRACE_SINGLEBLOCK	2008-01-30 13:30:53 +01:00
qnx4_fs.h
qnxtypes.h
quicklist.h
quota.h
quotaio_v1.h
quotaio_v2.h
quotaops.h
radeonfb.h
radix-tree.h
raid_class.h
ramfs.h
random.h
raw.h
rbtree.h
rcuclassic.h
rcupdate.h
rcupreempt.h
rcupreempt_trace.h
reboot.h
reciprocal_div.h
regset.h	x86: user_regset user-copy helpers	2008-01-30 13:31:47 +01:00
reiserfs_acl.h
reiserfs_fs.h
reiserfs_fs_i.h
reiserfs_fs_sb.h
reiserfs_xattr.h
relay.h
resource.h
resume-trace.h
rfkill.h
rio.h
rio_drv.h
rio_ids.h
rio_regs.h
rmap.h
romfs_fs.h
root_dev.h
rose.h
route.h
rslib.h
rtc-v3020.h
rtc.h
rtmutex.h
rtnetlink.h
rwsem-spinlock.h
rwsem.h
rxrpc.h
sc26198.h
scatterlist.h
scc.h
sched.h	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
screen_info.h
sctp.h
scx200.h
scx200_gpio.h
sdla.h
seccomp.h
securebits.h
security.h
selection.h
selinux.h
selinux_netlink.h
sem.h
seq_file.h
seqlock.h
serial.h
serial167.h
serial_8250.h
serial_core.h
serial_pnx8xxx.h
serial_reg.h
serialP.h
serio.h
shm.h
shmem_fs.h
signal.h
signalfd.h
skbuff.h
slab.h
slab_def.h
slob_def.h
slub_def.h
sm501-regs.h
sm501.h
smb.h
smb_fs.h
smb_fs_i.h
smb_fs_sb.h
smb_mount.h
smbno.h
smp.h	x86: optimize lock prefix switching to run less frequently	2008-01-30 13:33:17 +01:00
smp_lock.h
snmp.h
socket.h
sockios.h
som.h
sonet.h
sony-laptop.h
sonypi.h
sort.h
sound.h
soundcard.h
spinlock.h	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
spinlock_api_smp.h
spinlock_api_up.h
spinlock_types.h	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
spinlock_types_up.h
spinlock_up.h	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
splice.h
srcu.h
stacktrace.h
stallion.h
start_kernel.h
stat.h
statfs.h
stddef.h
stop_machine.h
string.h
stringify.h
superhyway.h
suspend.h	x86: make __{save,restore}_processor_state static	2008-01-30 13:31:23 +01:00
svga.h
swap.h	x86: demacro asm-x86/pgalloc_32.h	2008-01-30 13:33:39 +01:00
swapops.h
synclink.h
sys.h
syscalls.h
sysctl.h
sysdev.h
sysfs.h
sysrq.h
sysv_fs.h
task_io_accounting.h
task_io_accounting_ops.h
taskstats.h
taskstats_kern.h
tc.h
tcp.h
telephony.h
termios.h
textsearch.h
textsearch_fsm.h
tfrc.h
thread_info.h	x86: clean up bitops-related warnings	2008-01-30 13:30:55 +01:00
threads.h
tick.h	time: track accurate idle time with tick_sched.idle_sleeptime	2008-01-30 13:30:04 +01:00
tifm.h
time.h
timer.h	time: clean hungarian notation from timers	2008-01-30 13:30:00 +01:00
timerfd.h
times.h
timex.h
tiocl.h
tipc.h
tipc_config.h
topology.h
toshiba.h
transport_class.h
trdevice.h
tsacct_kern.h
tty.h
tty_driver.h
tty_flip.h
tty_ldisc.h
types.h
uaccess.h
udf_fs.h
udf_fs_i.h
udf_fs_sb.h
udp.h
ufs_fs.h
uinput.h
uio.h
uio_driver.h
ultrasound.h
un.h
unistd.h
unwind.h
usb.h
usb_usual.h
usbdevice_fs.h
user.h
user_namespace.h
utime.h
uts.h
utsname.h
vermagic.h
veth.h
vfs.h
via.h
video_decoder.h
video_encoder.h
video_output.h
videodev.h
videodev2.h
videotext.h
virtio.h
virtio_9p.h
virtio_blk.h
virtio_config.h
virtio_console.h
virtio_net.h
virtio_ring.h
vmalloc.h
vmstat.h
vt.h
vt_buffer.h
vt_kern.h
wait.h
wanrouter.h
watchdog.h
wireless.h
workqueue.h
writeback.h
x25.h
xattr.h
xfrm.h	[XFRM]: Fix struct xfrm_algo code formatting.	2008-01-28 15:02:01 -08:00
xilinxfb.h
yam.h
zconf.h
zlib.h
zorro.h
zorro_ids.h
zutil.h