Auke Kok [Tue, 23 May 2006 17:29:41 +0000 (10:29 -0700)]
ixgb: fix rare early tso completion
Fix rare early completion when using TSO. This essentially is the
e1000 fix, with code that was mostly already written. Another skb frag
was also needed.
[PATCH] skge: don't allow transmit ring to be too small
The driver will get stuck (permanent transmit timeout), if the transmit
ring size is set too small. It needs to have enough ring elements to
hold one maximum size transmit.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
If the status ring processing can't keep up with the incoming frames,
it is more efficient to have NAPI keep scheduling the poll routine
rather than causing another interrupt.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
If both ports are receiving on the SysKonnect dual port cards,
then it appears the bus interface unit can give an interrupt status
for frame before DMA has completed. This leads to bogus frames
and general confusion. This is why receive checksumming is also
messed up on dual port cards.
A workaround for the out of order receive problem is to eliminating
split transactions on PCI-X.
This version is based of the current linux-2.6.git including earlier
patch to disable dual ports.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
John W. Linville [Fri, 19 May 2006 14:51:21 +0000 (10:51 -0400)]
[PATCH] via-rhine: revert "change mdelay to msleep and remove from ISR path"
Revert previous patch with subject "change mdelay to msleep and remove
from ISR path". This patch seems to have caused bigger problems than
it solved, and it didn't solve much of a problem to begin with...
Discussion about backing-out this patch can be found here:
Cc: Ayaz Abdulla <aabdulla@nvidia.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Linus Torvalds [Sat, 20 May 2006 01:52:59 +0000 (18:52 -0700)]
Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
IB/mthca: Fix posting lists of 256 receive requests for Tavor
IB/uverbs: Don't leak ref to mm on error path
IB/srp: Complete correct SCSI commands on device reset
IB/srp: Get rid of extra scsi_host_put()s if reconnection fails
IB/srp: Don't wait for disconnection if sending DREQ fails
IB/mthca: Make fw_cmd_doorbell default to 0
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[SCTP]: Allow linger to abort 1-N style sockets.
[SCTP]: Validate the parameter length in HB-ACK chunk.
[SCTP]: Respect the real chunk length when walking parameters.
[SCTP]: A better solution to fix the race between sctp_peeloff() and
[SCTP]: Set sk_err so that poll wakes up after a non-blocking connect failure.
Linus Torvalds [Fri, 19 May 2006 23:42:11 +0000 (16:42 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3533/1: Implement the __raw_(read|write)_can_lock functions on ARM
[ARM] 3530/1: PXA Mainstone: prevent double enable_irq() in pcmcia
[ARM] 3529/1: s3c24xx: fix restoring control register with undefined instruction
Enable SO_LINGER functionality for 1-N style sockets. The socket API
draft will be clarfied to allow for this functionality. The linger
settings will apply to all associations on a given socket.
[SCTP]: Validate the parameter length in HB-ACK chunk.
If SCTP receives a badly formatted HB-ACK chunk, it is possible
that we may access invalid memory and potentially have a buffer
overflow. We should really make sure that the chunk format is
what we expect, before attempting to touch the data.
Pavel Pisa [Fri, 19 May 2006 20:48:03 +0000 (21:48 +0100)]
[ARM] 3531/1: i.MX/MX1 SD/MMC ensure, that clock are stopped before new command and cleanups
Patch from Pavel Pisa
There has been problems that for some paths that clock are not stopped
during new command programming and initiation. Result is issuing
of incorrect command to the card. Some other problems are cleaned too.
Noisy report of known ERRATUM #4 has been suppressed.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[SCTP]: Respect the real chunk length when walking parameters.
When performing bound checks during the parameter processing, we
want to use the real chunk and paramter lengths for bounds instead
of the rounded ones. This prevents us from potentially walking of
the end if the chunk length was miscalculated. We still use rounded
lengths when advancing the pointer. This was found during a
conformance test that changed the chunk length without modifying
parameters.
[SCTP]: A better solution to fix the race between sctp_peeloff() and
sctp_rcv().
The goal is to hold the ref on the association/endpoint throughout the
state-machine process. We accomplish like this:
/* ref on the assoc/ep is taken during lookup */
if owned_by_user(sk)
sctp_add_backlog(skb, sk);
else
inqueue_push(skb, sk);
/* drop the ref on the assoc/ep */
However, in sctp_add_backlog() we take the ref on assoc/ep and hold it
while the skb is on the backlog queue. This allows us to get rid of the
sock_hold/sock_put in the lookup routines.
Now sctp_backlog_rcv() needs to account for potential association move.
In the unlikely event that association moved, we need to retest if the
new socket is locked by user. If we don't this, we may have two packets
racing up the stack toward the same socket and we can't deal with it.
If the new socket is still locked, we'll just add the skb to its backlog
continuing to hold the ref on the association. This get's rid of the
need to move packets from one backlog to another and it also safe in
case new packets arrive on the same backlog queue.
The last step, is to lock the new socket when we are moving the
association to it. This is needed in case any new packets arrive on
the association when it moved. We want these to go to the backlog since
we would like to avoid the race between this new packet and a packet
that may be sitting on the backlog queue of the old socket toward the
same association.
Solar Designer [Fri, 19 May 2006 09:16:52 +0000 (02:16 -0700)]
[NETFILTER]: Fix do_add_counters race, possible oops or info leak (CVE-2006-0039)
Solar Designer found a race condition in do_add_counters(). The beginning
of paddc is supposed to be the same as tmp which was sanity-checked
above, but it might not be the same in reality. In case the integer
overflow and/or the race condition are triggered, paddc->num_counters
might not match the allocation size for paddc. If the check below
(t->private->number != paddc->num_counters) nevertheless passes (perhaps
this requires the race condition to be triggered), IPT_ENTRY_ITERATE()
would read kernel memory beyond the allocation size, potentially causing
an oops or leaking sensitive data (e.g., passwords from host system or
from another VPS) via counter increments. This requires CAP_NET_ADMIN.
Signed-off-by: Solar Designer <solar@openwall.com> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Dobriyan [Fri, 19 May 2006 09:16:29 +0000 (02:16 -0700)]
[NETFILTER]: GRE conntrack: fix htons/htonl confusion
GRE keys are 16 bit.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Philip Craig [Fri, 19 May 2006 09:15:47 +0000 (02:15 -0700)]
[NETFILTER]: fix format specifier for netfilter log targets
The prefix argument for nf_log_packet is a format specifier,
so don't pass the user defined string directly to it.
Signed-off-by: Philip Craig <philipc@snapgear.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Jesper Juhl [Fri, 19 May 2006 09:15:13 +0000 (02:15 -0700)]
[NETFILTER]: Fix memory leak in ipt_recent
The Coverity checker spotted that we may leak 'hold' in
net/ipv4/netfilter/ipt_recent.c::checkentry() when the following
is true:
if (!curr_table->status_proc) {
...
if(!curr_table) {
...
return 0; <-- here we leak.
Simply moving an existing vfree(hold); up a bit avoids the possible leak.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
IB/mthca: Fix posting lists of 256 receive requests for Tavor
If we post a list of length 256 exactly, nreq in doorbell gets set to
256 which is wrong: it should be encoded by 0. This is because we
only zero it out on the next WR, which may not be there. The solution
is to ring the doorbell after posting a WQE, not before posting the
next one.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Thu, 18 May 2006 05:20:50 +0000 (22:20 -0700)]
IB/uverbs: Don't leak ref to mm on error path
In ib_umem_release_on_close(), if the kmalloc() fails, then a
reference to current->mm will be leaked. Fix this by adding a mmput()
instead of just returning on kmalloc() failure.
Stefan Richter [Mon, 15 May 2006 20:08:09 +0000 (22:08 +0200)]
[PATCH] sbp2: add ability to override hardwired blacklist
In case the blacklist with workarounds for device bugs yields a false
positive, the module load parameter can now also be used as an override
instead of an addition to the blacklist.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Stefan Richter [Mon, 15 May 2006 20:06:37 +0000 (22:06 +0200)]
[PATCH] sbp2: add read_capacity workaround for iPod
Apple decided to copy some USB stupidity over to FireWire.
The sector number returned by iPods from read_capacity is one too many.
This may cause I/O errors, especially if the kernel is configured for EFI
partition support. We use the same workaround as usb-storage but have to
check for different model IDs.
Acknowledgements:
Diagnosis and therapy by Mathieu Chouquet-Stringer <ml2news@free.fr>,
additional data about affected and unaffected Apple hardware from
Vladimir Kotal, Sander De Graaf, Bryan Olmstead and Hugh Dixon.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Stefan Richter [Mon, 15 May 2006 20:04:59 +0000 (22:04 +0200)]
[PATCH] sbp2: consolidate workarounds
Grand unification of the three types of workarounds we have so far.
The "skip mode page 8" workaround is now limited to devices which
pretend to be of TYPE_DISK instead of TYPE_RBC. This workaround is no
longer enabled for Initio bridges.
Patch update in anticipation of more workarounds:
- Add module parameter "workarounds".
- Deprecate parameter "force_inquiry_hack".
- Compose the blacklist of a compound type for better readability and
extensibility.
- Remove a now unused #define.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/shemminger/netdev-2.6:
sky2: prevent dual port receiver problems
x86_64: Check for bad dma address in b44 1GB DMA workaround
The ixp2000 driver for the enp2611 was developed on a board with
Linus Torvalds [Wed, 17 May 2006 23:11:41 +0000 (16:11 -0700)]
Merge branch 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2
* 'upstream-linus' of git://oss.oracle.com/home/sourcebo/git/ocfs2:
configfs: Make sure configfs_init() is called before consumers.
configfs: configfs_mkdir() failed to cleanup linkage.
configfs: Fix a reference leak in configfs_mkdir().
ocfs2: fix gfp mask in some file system paths
ocfs2: Don't populate uptodate cache in ocfs2_force_read_journal()
ocfs2: take meta data lock in ocfs2_file_aio_read()
ocfs2: take data locks around extend
Joel Becker [Wed, 3 May 2006 18:38:53 +0000 (11:38 -0700)]
configfs: Make sure configfs_init() is called before consumers.
configfs_init() needs to be called first to register configfs before anyconsumers try to access it. Move up configfs in fs/Makefile to make
sure it is initialized early.
Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Joel Becker [Wed, 12 Apr 2006 04:37:20 +0000 (21:37 -0700)]
configfs: configfs_mkdir() failed to cleanup linkage.
If configfs_mkdir() errored in certain ways after the parent<->child
linkage was already created, it would not undo the linkage. Also,
comment the reference counting for clarity.
Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Mark Fasheh [Sat, 6 May 2006 02:04:03 +0000 (19:04 -0700)]
ocfs2: take data locks around extend
We need to take a data lock around extends to protect the pages that
ocfs2_zero_extend is going to be pulling into the page cache. Otherwise an
extend on one node might populate the page cache with data pages that have
no lock coverage.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Thomas Gleixner [Wed, 17 May 2006 19:14:29 +0000 (20:14 +0100)]
[ARM] 3530/1: PXA Mainstone: prevent double enable_irq() in pcmcia
Patch from Thomas Gleixner
The mainstone board pcmcia interrupt have been enabled via setup_irq()
and the following socket check calls enable_irq again. Set the NOAUTOEN flag so the interrupt is not automatically enabled in setup_irq()
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Ishai Rabinovitz [Wed, 17 May 2006 16:20:48 +0000 (09:20 -0700)]
IB/srp: Complete correct SCSI commands on device reset
When flushing out queued commands after a successful device reset,
make sure that SRP completes the right commands, instead of calling
scsi_done on the command passed into the device reset handler over and
over.
Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Wed, 17 May 2006 16:16:03 +0000 (09:16 -0700)]
IB/srp: Get rid of extra scsi_host_put()s if reconnection fails
If a reconnection attempt fails, then SRP does two scsi_host_put()s.
This is a historical relic from an earlier version of the driver that
took a reference on the scsi_host before trying to reconnect, so get
rid of the extra scsi_host_put().
Roland Dreier [Wed, 17 May 2006 16:13:21 +0000 (09:13 -0700)]
IB/srp: Don't wait for disconnection if sending DREQ fails
Sending a DREQ may fail, for example because the remote target has
already broken the connection. If so, then SRP should not wait for
the disconnection to complete, because it never will.
Dimitry Andric [Wed, 17 May 2006 15:31:11 +0000 (16:31 +0100)]
[ARM] 3529/1: s3c24xx: fix restoring control register with undefined instruction
Patch from Dimitry Andric
In arch/arm/mach-s3c2410/sleep.S, the coprocessor registers are saved at
suspend time, and restored at resume time. However, an undefined
instruction is used when attempting to restore a non-existent "auxiliary
control register". This leads to a crash on S3C2412, which has an ARM926
core instead of an ARM920.
There are several problems with these fragments:
1. The ARM920 and ARM926 cores don't have any "auxiliary control
register", at least not according to the ARM920 and ARM926 TRM's.
2. The 2nd line of suspend erroneously saves the c2 register again.
3. This saved c2 value is restored using an undefined instruction. For
some reason this does not crash on ARM920, but does crash on ARM926.
The following patch fixes all these problems.
Signed-off-by: Dimitry Andric <dimitry@andric.com>
Yes, this looks sensible
Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Roland Dreier [Wed, 17 May 2006 14:48:07 +0000 (07:48 -0700)]
IB/mthca: Make fw_cmd_doorbell default to 0
Setting fw_cmd_doorbell allows FW command to be queued using posted
writes instead of requiring polling on a "go" bit, so it should be a
performance boost. However, the option causes problems with at least
some device/firmware combinations, so set the default to 0 until we
understand what's going on better.
Chen, Kenneth W [Tue, 16 May 2006 23:34:57 +0000 (16:34 -0700)]
[IA64] one-line cleanup on set_irq_affinity_info
Calls to set_irq_info in set_irq_affinity_info() is redundant because
irq_affinity mask was set just one line immediately above it. Remove
that duplicate call.
Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
From: "Angelo P. Castellani" <angelo.castellani+lkml@gmail.com>
Using NewReno, if a sk_buff is timed out and is accounted as lost_out,
it should also be removed from the sacked_out.
This is necessary because recovery using NewReno fast retransmit could
take up to a lot RTTs and the sk_buff RTO can expire without actually
being really lost.
Linus Torvalds [Tue, 16 May 2006 22:16:14 +0000 (15:16 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] arch/arm/kernel/dma-isa.c: named initializers
[ARM] 3527/1: MPCore Boot Lockup Fix
[ARM] arch/arm/kernel/process.c: Fix warning
[ARM] 3526/1: ioremap should use vunmap instead of vfree on ARM
[ARM] 3524/1: ARM EABI: more 64-bit aligned stack fixes
[ARM] 3517/1: move definition of PROC_INFO_SZ from procinfo.h to asm-offsets.h
David Brownell [Fri, 7 Apr 2006 05:25:56 +0000 (22:25 -0700)]
[PATCH] SPI: spi_bitbang: clocking fixes
This fixes two problems triggered by the MMC stack updating clocks:
- SPI masters driver should accept a max clock speed of zero; that's one
convention for marking idle devices. (Presumably that helps controllers
that don't autogate clocks to "off" when not in use.)
- There are more than 1000 nanoseconds per millisecond; setting the clock
down to 125 KHz now works properly.
Showing once again that Zero (http://en.wikipedia.org/wiki/Zero) is still
an inexhaustible number of bugs.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stephen Street [Tue, 28 Mar 2006 22:05:23 +0000 (14:05 -0800)]
[PATCH] spi: Update to PXA2xx SPI Driver
Fix two outstanding issues with the pxa2xx_spi driver:
1) Bad cast in the function u32_writer. Thanks to Henrik Bechmann
2) Adds support for per transfer changes to speed and bits per word
Signed-off-by: Stephen Street <stephen@streetfiresound.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Mon, 3 Apr 2006 22:46:22 +0000 (15:46 -0700)]
[PATCH] SPI: devices can require LSB-first encodings
Add spi_device hook for LSB-first word encoding, and update all the
(in-tree) controller drivers to reject such devices. Eventually,
some controller drivers will be updated to support lsb-first encodings
on the wire; no current drivers need this.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kumar Gala [Sun, 2 Apr 2006 21:06:35 +0000 (16:06 -0500)]
[PATCH] SPI: Renamed bitbang_transfer_setup to spi_bitbang_setup_transfer and export it
Renamed bitbang_transfer_setup to follow convention of other exported symbols
from spi-bitbang. Exported spi_bitbang_setup_transfer to allow users of
spi-bitbang to use the function in their own setup_transfer.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stephen Street [Wed, 8 Mar 2006 07:53:24 +0000 (23:53 -0800)]
[PATCH] SPI: add PXA2xx SSP SPI Driver
This driver turns a PXA2xx synchronous serial port (SSP) into a SPI master
controller (see Documentation/spi/spi_summary). The driver has the following
features:
- Support for any PXA2xx SSP
- SSP PIO and SSP DMA data transfers.
- External and Internal (SSPFRM) chip selects.
- Per slave device (chip) configuration.
- Full suspend, freeze, resume support.
Signed-off-by: Stephen Street <stephen@streetfiresound.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Imre Deak [Fri, 17 Feb 2006 18:02:18 +0000 (10:02 -0800)]
[PATCH] SPI: per-transfer overrides for wordsize and clocking
Some protocols (like one for some bitmap displays) require different clock
speed or word size settings for each transfer in an SPI message. This adds
those parameters to struct spi_transfer. They are to be used when they are
nonzero; otherwise the defaults from spi_device are to be used.
The patch also adds a setup_transfer callback to spi_bitbang, uses it for
messages that use those overrides, and implements it so that the pure
bitbanging code can help resolve any questions about how it should work.
Signed-off-by: Imre Deak <imre.deak@nokia.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Tue, 16 May 2006 15:46:10 +0000 (08:46 -0700)]
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:
[PATCH] Fix pSeries identification in prom_init.c
[PATCH] powerpc: fix kernel version display on pseries boxes
Roland Dreier [Mon, 15 May 2006 18:41:00 +0000 (11:41 -0700)]
[PATCH] slab: Fix kmem_cache_destroy() on NUMA
With CONFIG_NUMA set, kmem_cache_destroy() may fail and say "Can't
free all objects." The problem is caused by sequences such as the
following (suppose we are on a NUMA machine with two nodes, 0 and 1):
* Allocate an object from cache on node 0.
* Free the object on node 1. The object is put into node 1's alien
array_cache for node 0.
* Call kmem_cache_destroy(), which ultimately ends up in __cache_shrink().
* __cache_shrink() does drain_cpu_caches(), which loops through all nodes.
For each node it drains the shared array_cache and then handles the
alien array_cache for the other node.
However this means that node 0's shared array_cache will be drained,
and then node 1 will move the contents of its alien[0] array_cache
into that same shared array_cache. node 0's shared array_cache is
never looked at again, so the objects left there will appear to be in
use when __cache_shrink() calls __node_shrink() for node 0. So
__node_shrink() will return 1 and kmem_cache_destroy() will fail.
This patch fixes this by having drain_cpu_caches() do
drain_alien_cache() on every node before it does drain_array() on the
nodes' shared array_caches.
The problem was originally reported by Or Gerlitz <ogerlitz@voltaire.com>.
Signed-off-by: Roland Dreier <rolandd@cisco.com> Acked-by: Christoph Lameter <clameter@sgi.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Mon, 15 May 2006 16:19:47 +0000 (18:19 +0200)]
[PATCH] x86_64: Don't schedule on exception stack on preemptive kernels
Extends an earlier patch from John Blackwood to more exception handlers
that also run on the exception stacks.
Expand the use of preempt_conditional_{sti,cli} to all cases where
interrupts are to be re-enabled during exception handling while running
on an IST stack.
Andi Kleen [Mon, 15 May 2006 16:19:44 +0000 (18:19 +0200)]
[PATCH] x86_64: Fix memory hotadd heuristics
This fixes some boot failures on Dell and Unisys systems with memory
hotadd added.
- Set hotadd_percent to 0 by default. This means anybody using hotadd
memory needs to specify the value on the command line. That's
because there are lots of Intel boxes which have a bogus hotplug area
in their SRAT and they would waste a lot of memory before.
- Fix calculation of how much memory to use when the hotplug area
exceeds hotadd_percent
- Fix fallback when the
- Fix fallback if memory hotadd is not compiled in.
Andi Kleen [Mon, 15 May 2006 16:19:41 +0000 (18:19 +0200)]
[PATCH] i386/x86_64: Force pci=noacpi on HP XW9300
This is needed to see all devices.
The system has multiple PCI segments and we don't handle that properly
yet in PCI and ACPI. Short term before this is fixed blacklist it to
pci=noacpi.
The OF trampoline code prom_init.c still needs to identify IBM pSeries
(PAPR) machines in order to run some platform specific code on them like
instanciating the TCE tables. The code doing that detection was changed
recently in 2.6.17 early stages but was done slightly incorrectly. It
should be testing for an exact match of "chrp" and it currently tests
for anything that begins with "chrp". That means it will incorrectly
match with platforms using Maple-like device-trees and have open
firmware. This fixes it by using strcmp instead of strncmp to match what
the actual platform detection code does.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Wed, 10 May 2006 03:05:54 +0000 (13:05 +1000)]
[PATCH] powerpc: fix kernel version display on pseries boxes
We are displaying the wrong thing on the operator panel (2x40
character LCD). This got broken in commit cebb21b5, when UTS_RELEASE
got changed to system_utsname.version.
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Uwe Zeisberger [Wed, 10 May 2006 17:11:05 +0000 (18:11 +0100)]
[ARM] 3517/1: move definition of PROC_INFO_SZ from procinfo.h to asm-offsets.h
Patch from Uwe Zeisberger
The symbol is only used in arch/arm/kernel/head-common.S. This in turn
is included from arch/arm/kernel/head.S and arch/arm/kernel/head-nommu.S
which include asm-offsets.h .
Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[WATCHDOG] i8xx_tco.c - remove support for ICH6 + ICH7
Temporary remove support for ICH6 + ICH7. In these newer TCO's
the watchdog timer has changed: the TCO_TMR register is not at
the TCOBASE+0x1 offset, but changed it's place to TCOBASE+0x12
and became 10 bit long [0:9]. (Kernel BUG 6031).
ICH6 + ICH7 support will be added in a new driver. Code is
under test.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@osdl.org>
When both ports are receiving simultaneously, the receive logic gets confused
and may pass up a packet before it is full. This causes hangs, and IP will see
lots of garbage packets. There is even the potential for data corruption if
a later arriving packet DMA's into freed memory.
It looks like a hardware bug because status arrives for a packet but no
data is there. Until this bug is worked out, block the user from bringing
up both ports at once.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
projects / linux-2.6 / log