Commit Graph

65100 Commits

Author SHA1 Message Date
Magnus Damm c9d03d9a80 sh: simplify se7780 IRQ code
The new intc code handles IRQ3 and IRQ7 in the cpu specific code
already, so there is no reason to duplicate that here.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:47 +09:00
Magnus Damm e29bfbc443 sh: intc - add support for SH7760
This patch converts the cpu specific interrupt setup code for sh7760
from ipr + intc2 to intc. New vectors are also added to match the
information provided by the datasheet.

Vectors for IRQ4-IRQ7 are enabled by default. Use plat_irq_setup_pins()
if pins IRL0-3 should be used in IRLM mode.

The patch also adds the SIM block to the serial port platform data.
Version two of this patch fixes MMCIF problems reported by Manuel Lauss.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:46 +09:00
Magnus Damm a0e23267d4 sh: intc - add support for SH7785
This patch converts the cpu specific interrupt setup code for sh7785
from intc2 to intc. New vectors are also added to match the information
provided by the datasheet.

No IRQ/IRL pin vectors are enabled by default. Use plat_irq_setup_pins()
to select between IRL and IRQ mode.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:46 +09:00
Paul Mundt e7bd34a15b sh: Support explicit L1 cache disabling.
This reworks the cache mode configuration in Kconfig, and allows for
explicit selection of write-back/write-through/off configurations.
All of the cache flushing routines are optimized away for the off
case.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:46 +09:00
Magnus Damm ac919986d7 sh: intc - avoid SH7710 specific vector on SH7712
This patch makes sure that the sh7710 specific ipsec vector is missing
if building for a sh7712. All according to the datasheet.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:46 +09:00
Magnus Damm 1301e71562 sh: intc - add missing vectors for SH7707
This patch adds a few missing vectors for sh7707. The only interrupt
controller differences between sh7707 and sh7709 seem to be added
vectors for one LCD controller and two PCMCIA slots.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:46 +09:00
Magnus Damm ec58f1f32d sh: intc - add support for SH7706, SH7707, SH7708, SH7709
This patch unifies the cpu specific interrupt setup code for
sh7706, sh7707, sh7708 and sh7709 and moves the code into a new
file called setup-sh770x.c.  It makes sense to share the setup code
between these processors because most hardware blocks are identical
from a software point of view. With this patch the sh770x processors
now have a complete set of vectors that match with the information
provided by the data sheets. This is a big improvement for sh7708.

Vectors for IRQ4 and IRQ5 are enabled by default. Use
plat_irq_setup_pins() if pins IRQ0-3 should be used in IRQ mode.

This patch also unifies the platform device setup code which means
that the rtc driver now has platform data for all sh770x processors.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:46 +09:00
Magnus Damm 28b146c84e sh: intc - add support for SH7710
This patch converts the cpu specific interrupt setup code
for sh7710 from ipr to intc. While at it new vectors are added
to match the information provided by the datasheet. Version two
simplifies the Kconfig part.

Vectors for IRQ4 and IRQ5 are enabled by default. Use
plat_irq_setup_pins() if pins IRQ0-3 should be used in IRQ mode.

This patch also adds sh7710 specific platform data for the rtc
driver. The base address of SCIF1 is adjusted to match the
datasheet.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:45 +09:00
Magnus Damm 70e8be0a4e sh: intc - add support for SH7705
This patch converts the cpu specific interrupt setup code for
sh7705 from ipr to intc. While at it new vectors are added to
match the information provided by the datasheet.

Vectors for IRQ4 and IRQ5 are enabled by default.

Use plat_irq_setup_pins() if pins IRQ0-3 should be used in IRQ mode.

This patch also adds sh7705 specific platform data for the rtc driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21 11:57:45 +09:00
Linus Torvalds 335fb8fc71 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] ahci: add ATI SB800 PCI IDs
  libata-sff: Fix documentation
  libata: Update the blacklist with a few more devices
2007-09-20 13:25:35 -07:00
Davide Libenzi b8fceee17a signalfd simplification
This simplifies signalfd code, by avoiding it to remain attached to the
sighand during its lifetime.

In this way, the signalfd remain attached to the sighand only during
poll(2) (and select and epoll) and read(2).  This also allows to remove
all the custom "tsk == current" checks in kernel/signal.c, since
dequeue_signal() will only be called by "current".

I think this is also what Ben was suggesting time ago.

The external effect of this, is that a thread can extract only its own
private signals and the group ones.  I think this is an acceptable
behaviour, in that those are the signals the thread would be able to
fetch w/out signalfd.

Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-20 13:19:59 -07:00
Wolfgang Walter 9db619e665 rpc: fix garbage in printk in svc_tcp_accept()
we upgraded the kernel of a nfs-server from 2.6.17.11 to 2.6.22.6. Since
then we get the message

lockd: too many open TCP sockets, consider increasing the number of nfsd threads
lockd: last TCP connect from ^\\236^\É^D

These random characters in the second line are caused by a bug in
svc_tcp_accept.

(Note: there are two previous __svc_print_addr(sin, buf, sizeof(buf))
calls in this function, either of which would initialize buf correctly;
but both are inside "if"'s and are not necessarily executed.  This is
less obvious in the second case, which is inside a dprintk(), which is a
macro which expands to an if statement.)

Signed-off-by: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-20 13:15:57 -07:00
henry su c69c0892d8 [libata] ahci: add ATI SB800 PCI IDs
ATI/AMD SB800 shares some device IDs with SB700,
and SB800 adds two more device IDs:0x4394,0x4395.

Signed-off-by: henry su <henry.su.ati@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 16:07:33 -04:00
Alan Cox e1cc9de836 libata-sff: Fix documentation
Code moved to ioread/iowrite but the comment didn't
Also note a posting issue

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:58:26 -04:00
Alan Cox 0e3dbc01d5 libata: Update the blacklist with a few more devices
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:58:26 -04:00
Linus Torvalds f685ddaf0f Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [BNX2]: Add PHY workaround for 5709 A1.
  [PPP] L2TP: Fix skb handling in pppol2tp_xmit
  [PPP] L2TP: Fix skb handling in pppol2tp_recv_core
  [PPP] L2TP: Disallow non-UDP datagram sockets
  [PPP] pppoe: Fix double-free on skb after transmit failure
  [PKT_SCHED]: Fix 'SFQ qdisc crashes with limit of 2 packets'
  [NETFILTER]: MAINTAINERS update
  [NETFILTER]: nfnetlink_log: fix sending of multipart messages
2007-09-20 12:42:47 -07:00
Linus Torvalds 460edb3cd0 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
  sky2: version 1.18
  sky2: receive FIFO checking
  sky2: fe+ chip support
  sky2: reorganize chip revision features
  sky2: ethtool speed report bug
  sky2: fix VLAN receive processing (resend)
  phy: export phy_mii_ioctl
  myri10ge: Add support for PCI device id 9
2007-09-20 12:42:23 -07:00
Stephen Hemminger faf60e72d0 sky2: version 1.18
Update version number

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:23:00 -04:00
Stephen Hemminger 75e806838a sky2: receive FIFO checking
A driver writer from another operating system hinted that
the versions of Yukon 2 chip with rambuffer (EC and XL) have
a hardware bug that if the FIFO ever gets completely full it
will hang. Sounds like a classic ring full vs ring empty wrap around
bug.

As a workaround, use the existing watchdog timer to check for
ring full lockup.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:23:00 -04:00
Stephen Hemminger 05745c4ab1 sky2: fe+ chip support
Add support for newest Marvell chips.
The Yukon FE plus chip is found in some not yet released laptops.
Tested on hardware evaluation boards.

This version of the patch is for 2.6.23. It supersedes
the two previous patches that are sitting in netdev-2.6 (upstream branch).

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:23:00 -04:00
Stephen Hemminger ea76e63598 sky2: reorganize chip revision features
This patch should cause no functional changes in driver behaviour.
There are (too) many revisions of the Yukon 2 chip now. Instead of
adding more conditionals based on chip revision; rerganize into a
set of feature flags so adding new versions is less problematic.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:23:00 -04:00
Stephen Hemminger c99210b50f sky2: ethtool speed report bug
On 100mbit versions, the driver always reports gigabit speed
available. The correct modes are already computed, then overwritten.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:23:00 -04:00
Stephen Hemminger d6532232cd sky2: fix VLAN receive processing (resend)
The length check for truncated frames was not correctly handling
the case where VLAN acceleration had already read the tag.
Also, the Yukon EX has some features that use high bit of status
as security tag.

Signed-off-by: Pierre-Yves Ritschard <pyr@spootnik.org>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 15:22:59 -04:00
Stefan Richter be7963b7e7 ieee1394: ohci1394: fix initialization if built non-modular
Initialization of ohci1394 was broken according to one reporter if the
driver was statically linked, i.e. not built as loadable module.  Dmesg:

  PCI: Device 0000:02:07.0 not available because of resource collisions
  ohci1394: Failed to enable OHCI hardware.

This was reported for a Toshiba Satellite 5100-503.  The cause is commit
8df4083c52 in Linux 2.6.19-rc1 which only
served purposes of early remote debugging via FireWire.  This
functionality is better provided by the currently out-of-tree driver
ohci1394_earlyinit.  Reversal of the commit was OK'd by Andi Kleen.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-09-20 21:19:45 +02:00
Michael Chan cd46171c72 [BNX2]: Add PHY workaround for 5709 A1.
Add the DIS_EARLY_DAC PHY workaround for 5709 A1.  Without it, link
sometimes does not come up.

Update version to 1.6.5.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:14:21 -07:00
Herbert Xu f3d5e3a415 [PPP] L2TP: Fix skb handling in pppol2tp_xmit
This patch makes pppol2tp_xmit call skb_cow_head so that we don't modify
cloned skb data.  It also gets rid of skb2 we only need to preserve the
original skb for congestion notification, which is only applicable for
ppp_async and ppp_sync.

The other semantic change made here is the removal of socket accounting
for data tranmitted out of pppol2tp_xmit.  The original code leaked any
existing socket skb accounting.  We could fix this by dropping the
original skb owner.  However, this is undesirable as the packet has not
physically left the host yet.

In fact, all other tunnels in the kernel do not account skb's passing
through to their own socket.  In partciular, ESP over UDP does not do
so and it is the closest tunnel type to PPPoL2TP.  So this patch simply
removes the socket accounting in pppol2tp_xmit.  The accounting still
applies to control packets of course.

I've also added a reminder that the outgoing checksum here doesn't work.
I suppose existing deployments don't actually enable checksums.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:14:18 -07:00
Herbert Xu 7a70e39b66 [PPP] L2TP: Fix skb handling in pppol2tp_recv_core
The function pppol2tp_recv_core doesn't handle non-linear packets properly.
It also fails to check the remote offset field.

This patch fixes these problems.  It also removes an unnecessary check on
the UDP header which has already been performed by the UDP layer.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:14:17 -07:00
Herbert Xu a14d6abc94 [PPP] L2TP: Disallow non-UDP datagram sockets
With the addition of UDP-Lite we need to refine the socket check so
that only genuine UDP sockets are allowed through.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:14:17 -07:00
Herbert Xu 21d0c83302 [PPP] pppoe: Fix double-free on skb after transmit failure
When I got rid of the second packet in __pppoe_xmit I created
a double-free on the skb because of the goto abort on failure.
This patch removes that.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:14:16 -07:00
Alexey Kuznetsov 5588b40d7c [PKT_SCHED]: Fix 'SFQ qdisc crashes with limit of 2 packets'
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:14:08 -07:00
Patrick McHardy 1a03b81db9 [NETFILTER]: MAINTAINERS update
Update netfilter list addresses and an old email address of myself.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:13:56 -07:00
Eric Leblond 29c5d4afba [NETFILTER]: nfnetlink_log: fix sending of multipart messages
The following patch fixes the handling of netlink packets containing
multiple messages.

As exposed during netfilter workshop, nfnetlink_log was overwritten the
message type of the last message (setting it to MSG_DONE) in a multipart
packet. The consequence was libnfnetlink to ignore the last message in the
packet.

The following patch adds a supplementary message (with type MSG_DONE) af
the end of the netlink skb.

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-09-20 12:13:52 -07:00
Linus Torvalds 6d0b842d3b Fix CRLF line endings in Documentation/input/iforce-protocol.txt
Emil Medve points out that this documentation file uses CRLF line
endings, which means that if you use

	[core]
		autocrlf=input

(which makes sense if you ever develop under Windows, for example, or if
you use other broken tools) in your git config, git will always complain
about the file being dirty.

This removes the bogus DOS line endings, and removes whitespace at the
end of line.

Cc: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-20 11:33:45 -07:00
Paul Bolle bbc15f46fe [x86 setup] Fix typo in arch/i386/boot/header.S
There's an obvious typo in arch/i386/boot/header.S (in your
linux-2.6-x86setup.git) that I noticed by just studying the code.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-09-20 11:06:59 -07:00
H. Peter Anvin 91c4b8cb5a [acpi] Correct the decoding of video mode numbers in wakeup.S
wakeup.S looks at the video mode number from the setup header and
looks to see if it is a VESA mode.  Unfortunately, the decoding is
done incorrectly and it will attempt to frob the VESA BIOS for any
mode number 0x0200 or larger.  Correct this, and remove a bunch of #if
0'd code.

Massive thanks to Jeff Chua for reporting the bug, and suffering
though a large number of experiments in order to track this problem
down.

Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-09-20 11:06:58 -07:00
H. Peter Anvin 3f662b3f6e [x86 setup] Present the canonical video mode number to the kernel
Canonicalize the video mode number as presented to the kernel.  The
video mode number may be user-entered (e.g. ASK_VGA), an alias
(e.g. NORMAL_VGA), or a size specification, and that confuses the
suspend wakeup code.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-09-20 11:06:58 -07:00
Domen Puncer 680e9fe9d6 phy: export phy_mii_ioctl
Export phy_mii_ioctl, so network drivers can use it when built
as modules too.

Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-20 02:35:50 -04:00
Linus Torvalds 81cfe79b9c Linux 2.6.23-rc7 2007-09-19 16:01:13 -07:00
Linus Torvalds 097cc62283 Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
  sched: fix invalid sched_class use
  sched: add /proc/sys/kernel/sched_compat_yield
2007-09-19 15:47:59 -07:00
Eric Paris 31e8793094 SELinux: fix array out of bounds when mounting with selinux options
Given an illegal selinux option it was possible for match_token to work in
random memory at the end of the match_table_t array.

Note that privilege is required to perform a context mount, so this issue is
effectively limited to root only.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
2007-09-20 08:06:40 +10:00
Hiroshi Shimamoto 9c95e7319b sched: fix invalid sched_class use
When using rt_mutex, a NULL pointer dereference is occurred at
enqueue_task_rt. Here is a scenario;
1) there are two threads, the thread A is fair_sched_class and
   thread B is rt_sched_class.
2) Thread A is boosted up to rt_sched_class, because the thread A
   has a rt_mutex lock and the thread B is waiting the lock.
3) At this time, when thread A create a new thread C, the thread
   C has a rt_sched_class.
4) When doing wake_up_new_task() for the thread C, the priority
   of the thread C is out of the RT priority range, because the
   normal priority of thread A is not the RT priority. It makes
   data corruption by overflowing the rt_prio_array.
The new thread C should be fair_sched_class.

The new thread should be valid scheduler class before queuing.
This patch fixes to set the suitable scheduler class.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2007-09-19 23:34:46 +02:00
Ingo Molnar 1799e35d5b sched: add /proc/sys/kernel/sched_compat_yield
add /proc/sys/kernel/sched_compat_yield to make sys_sched_yield()
more agressive, by moving the yielding task to the last position
in the rbtree.

with sched_compat_yield=0:

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  2539 mingo     20   0  1576  252  204 R   50  0.0   0:02.03 loop_yield
  2541 mingo     20   0  1576  244  196 R   50  0.0   0:02.05 loop

with sched_compat_yield=1:

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  2584 mingo     20   0  1576  248  196 R   99  0.0   0:52.45 loop
  2582 mingo     20   0  1576  256  204 R    0  0.0   0:00.00 loop_yield

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2007-09-19 23:34:46 +02:00
Brice Goglin a07bc1ffae myri10ge: Add support for PCI device id 9
Add support for new Myri-10G boards with PCI device id 9.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-19 16:22:09 -04:00
Linus Torvalds a88a8eff1e Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] cpu-bugs64.c: GCC 3.3 constraint workaround
  [MIPS] DEC: Initialise ioasic_ssr_lock
2007-09-19 11:45:32 -07:00
Linus Torvalds c39c06b961 Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
  V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" boot-time option
  Revert "V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" boot-time option"
2007-09-19 11:41:15 -07:00
Linus Torvalds a78feb7c8a Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6:
  [XFS] Avoid replaying inode buffer initialisation log items if on-disk version is newer.
  [XFS] Ensure file size updates have been completed before writing inode to disk.
  [XFS] On-demand reaping of the MRU cache
2007-09-19 11:40:13 -07:00
Linus Torvalds 91fe7d7cdd Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SUNSAB]: Fix several bugs.
2007-09-19 11:39:39 -07:00
Linus Torvalds d56c5c414c Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide: remove unused variables from drivers/ide/ppc/pmac.c
  ide: ST320413A has the same problem as ST340823A
2007-09-19 11:39:10 -07:00
Linus Torvalds f15f41383d Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix timekeeping on PowerPC 601
  [POWERPC] Don't expose clock vDSO functions when CPU has no timebase
  [POWERPC] spusched: Fix null pointer dereference in find_victim
2007-09-19 11:38:25 -07:00
Linus Torvalds dbe3ed1c07 x86-64: page faults from user mode are always user faults
Randy Dunlap noticed an interesting "crashme" behaviour on his dual
Prescott Xeon setup, where he gets page faults with the error code
having a zero "user" bit, but the register state points back to user
mode.

This may be a CPU microcode buglet triggered by some strange instruction
pattern that crashme generates, and loading a microcode update seems to
possibly have fixed it.

Regardless, we really should trust the register state more than the
error code, since it's really the register state that determines whether
we can actually send a signal, or whether we're in kernel mode and need
to oops/kill the process in the case of a page fault.

Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-19 11:37:14 -07:00