We'll use the new "scheduler verbose debugging" macro to log missed
SOFs. This is fast enough (assuming you configure it to use the ftrace
buffer) that we can do it without worrying about the speed hit. The
overhead hit if the scheduler tracing is set to "no_printk" should be
near zero.
Signed-o
We'd like to be able to use HCD_BH in order to speed up the dwc2 host
interrupt handler quite a bit. However, according to the kernel doc for
usb_submit_urb() (specifically the part about "Reserved Bandwidth
Transfers"), we need to keep a reservation active as long as a device
driver keeps submitt
In commit 94dfd7edfd5c ("USB: HCD: support giveback of URB in tasklet
context") support was added to give back the URB in tasklet context.
Let's take advantage of this in dwc2.
This speeds up the dwc2 interrupt handler considerably.
Note that this requires the change ("usb: dwc2: host: Add a dela
Previously we needed to set the max_transfer_size to explicitly be 65535
because the old driver would detect that our hardware could support much
bigger transfers and then would try to do them. This wouldn't work
since the DMA alignment code couldn't support it.
Later in commit e8f8c14d9da7 ("usb
This no-op change just does some renames to simplify a future patch.
1. The "interval" field is renamed to "host_interval" to make it more
obvious that this interval may be 8 times the interval that the
device sees (if we're doing split transactions). A future patch will
also add the "de
The queues the the dwc2 host controller used are truly queues. That
means FIFO or first in first out.
Unfortunately though the code was iterating through these queues
starting from the head, some places in the code was adding things to the
queue by adding at the head instead of the tail. That me
The old code in dwc2_process_periodic_channels() would only enable the
"periodic empty" interrupt if we weren't using DMA. That wasn't right
since we can still get into cases where we have small FIFOs even on
systems that have DMA (the rk3288 is a prime example).
Let's always enable/disable the "
We're supposed to keep outstanding splits in order. Keep track of a
list of the order of splits and process channel interrupts in that
order.
Without this change and the following setup:
* Rockchip rk3288 Chromebook, using port ff54
-> Pluggable 7-port Hub with Charging (powered)
-> Mi
When poking around with USB devices with slub_debug enabled, I found
another obvious use after free. Turns out that in dwc2_hc_n_intr() I
was in a state when the contents of chan->qh was filled with 0x6b,
indicating that chan->qh was freed but chan still had a reference to
it.
Let's make sure tha
As documented in dwc2_calculate_dynamic_fifo(), host_rx_fifo_size should
really be:
2 * ((Largest Packet size / 4) + 1 + 1) + n
with n = number of host channel.
We have 9 host channels, so
2 * ((1024/4) + 2) + 9 = 516 + 9 = 525
We've got 960 / 972 total_fifo_size on rk3288 (and presumably on
r
This is a bit of catchall series for all the bug fix and performance
patches I've been working on over the last few months. Note that for
dwc2 we need to do LOTS in software and need super low interrupt
latency, so most performance improvements actually fix real bugs.
Patches are structured to st
Looking at rk3288, there are two dwc2 ports. One has 960
total_fifo_size and the other 972.
We're currently assigning 528 + 128 + 256 = 912. That means we're
wasting 48 words on one port and 60 words on the other. Since we have
one settings block for both ports, let's just eat the 48 words that
On Thu, Jan 21, 2016 at 3:04 PM, Al Viro wrote:
> [trying to use git request-pull; result looks more or less sane, AFAICT...]
Looks fine, if you can just fix this part:
> gitol...@ra.kernel.org:/pub/scm/linux/kernel/git/viro/vfs.git for-linus
and have it point to the public git://git.kernel.o
The patch
regmap: clairify meaning of max_register
has been applied to the regmap tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Lin
On 01/22/2016 04:18 PM, Ville Syrjälä wrote:
On Fri, Jan 22, 2016 at 12:06:00PM +0900, Michel Dänzer wrote:
[ Trimming KDE folks from Cc ]
On 21.01.2016 19:09, Daniel Vetter wrote:
On Thu, Jan 21, 2016 at 05:36:46PM +0900, Michel Dänzer wrote:
On 21.01.2016 16:58, Daniel Vetter wrote:
Ca
After commit e36f62042880(block: split bios to maxpossible length),
bio can be splitted in the middle of a vector entry, then it
is easy to split out one bio which size isn't aligned with block
size, especially when the block size is bigger than 512.
This patch fixes the issue by making the max io
On Fri, Jan 22, 2016 at 10:26:18AM -0800, Linus Torvalds wrote:
> On Thu, Jan 21, 2016 at 3:04 PM, Al Viro wrote:
> > [trying to use git request-pull; result looks more or less sane, AFAICT...]
>
> Looks fine, if you can just fix this part:
>
> > gitol...@ra.kernel.org:/pub/scm/linux/kernel/gi
On Fri, Jan 22, 2016 at 10:29 AM, Ming Lei wrote:
>
> This patch fixes the issue by making the max io size aligned
> to logical block size.
Looks better, thanks.
I'd suggest also moving the "max_sectors" variable into the
bio_for_each_segment() loop too just to keep variables with minimal
scope,
On Fri, Jan 22, 2016 at 10:14:39AM -0800, Guenter Roeck wrote:
> cmpxchg() on some architectures (ia64) doesn't like functions as parameters.
> This results in the following compile error on the affected architectures.
>
> fs/aio.c: In function 'aio_thread_fn':
> fs/aio.c:1499:1: error: cast speci
Maybe != 0 would be better? I don't have a strong opinion about it.
julia
-- Forwarded message --
Date: Sat, 23 Jan 2016 02:33:48 +0800
From: kbuild test robot
To: kbu...@01.org
Cc: Julia Lawall
Subject: drivers/staging/media/lirc/lirc_parallel.c:163:22-33: WARNING: Unsigned
On 1/15/2016 10:22 AM, Mark Rutland wrote:
> Typically VFIO-platform also comes with a corresponding reset driver.
> You don't need one?
Digging this further, I do need a HIDMA reset driver. The reset driver is
useful if HIDMA
operation is aborted in the middle and guest machine is shutdown.
I
Missed one:
static inline dma_addr_t pfn_t_to_phys(pfn_t pfn)
{
return PFN_PHYS(pfn_t_to_pfn(pfn));
}
On Fri, Jan 22, 2016 at 09:51:14AM -0800, Dan Williams wrote:
> A dma_addr_t is potentially smaller than a phys_addr_t on some archs.
> Don't truncate the address when doing the pfn conv
A dma_addr_t is potentially smaller than a phys_addr_t on some archs.
Don't truncate the address when doing the pfn conversion.
Cc: Ross Zwisler
Reported-by: Matthew Wilcox
[willy: fix pfn_t_to_phys as well]
Signed-off-by: Dan Williams
---
include/linux/pfn_t.h |4 ++--
kernel/
On Fri, Jan 22, 2016 at 10:42 AM, Al Viro wrote:
>
> BTW, looks like ext4 is the only pending i_mutex-sensitive tree; once
> it's pulled, I'll regenerate the inode_{lock,unlock,trylock,...} patch
> and send it your way.
I have the ext4 pull pending now, I'm doing some test-builds before
pulling t
On 01/22/2016 05:44 AM, Michael Matz wrote:
> Hi,
>
> On Thu, 21 Jan 2016, H. Peter Anvin wrote:
>
>> Something that confuses me is that gcc seems to give these sections the
>> "aw" attributes which makes as complain. This might be a gcc bug.
>
> Workaround: use an (possibly empty) intializer:
Em Fri, Jan 22, 2016 at 06:56:02PM +0100, Daniel Borkmann escreveu:
> On 01/22/2016 06:35 PM, Adam Jackson wrote:
> >On Fri, 2016-01-22 at 14:22 -0300, Arnaldo Carvalho de Melo wrote:
> >
> >>the 'bpf' target for clang is being used together with perf to
> >>build scriptlets into object code th
On Fri, Jan 22, 2016 at 10:00:19AM -0800, Shaohua Li wrote:
> On Fri, Jan 22, 2016 at 10:52:36AM -0500, Vivek Goyal wrote:
> > On Fri, Jan 22, 2016 at 09:48:22AM -0500, Tejun Heo wrote:
> > > Hello, Shaohua.
> > >
> > > On Thu, Jan 21, 2016 at 04:00:16PM -0800, Shaohua Li wrote:
> > > > > The thin
The network core tries to keep track of dropped packets, but some packets
you wouldn't really call dropped, so much as intentionally ignored, under
certain circumstances. One such case is that of bonding and team device
slaves that are currently inactive. Their respective rx_handler functions
retur
On Fri, Jan 22, 2016 at 01:08:44PM -0500, Tejun Heo wrote:
> Hello, Shaohua.
>
> On Fri, Jan 22, 2016 at 09:57:10AM -0800, Shaohua Li wrote:
> > > Let's say per-cgroup buffer budget B is calculated as, say, 100ms
> > > worth of IO cost (or bandwidth or iops) available to the cgroup. In
> > > prac
On Fri, Jan 22, 2016 at 11:43:48AM -0600, Chris J Arges wrote:
> On Thu, Jan 21, 2016 at 04:49:04PM -0600, Josh Poimboeuf wrote:
> > This is v16 of the compile-time stack metadata validation patch set,
> > along with proposed fixes for most of the warnings it found. It's based
> > on the tip/maste
On Thu, 2016-01-21 at 20:24 +, Mark Brown wrote:
> Using a bitfield enables the compiler to lay out the structure more
> efficiently when we have other boolean flags since multiple values can
> be included in a single byte.
>
> Signed-off-by: Mark Brown
> ---
> include/linux/regulator/driver
Hello. I've got a device driver for MIL-1553b card called TA1-PCI, which could
be found at
https://github.com/qmor/elcus-1553-driver-linux
Card is using PLX_PCI9030 PCI controller.
Today i've found that this driver compiles, installes, but is not working as it
should.
Looks like it not receives
On 1/22/16 9:19 AM, David Brown wrote:
On Tue, Jan 19, 2016 at 10:08:34AM -0800, Kees Cook wrote:
This introduces __ro_after_init as a way to mark such memory, and uses
it on the x86 vDSO to kill an extant kernel exploitation method. Also
adds a new kernel parameter to help debug future use and
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 3e1e21c7bfcfa9bf06c07f48a13faca2f62b3339
commit: af3bac1a7c8a21ff4f4edede397cba8e3f8ee503 [media] media: videobuf2: Move
vb2_fileio_data and vb2_thread to core part
date: 5 weeks ago
coccinelle warnings:
On 01/22/2016 09:53 AM, Bjorn Helgaas wrote:
On Thu, Jan 21, 2016 at 11:58:26PM +0100, Rafael J. Wysocki wrote:
On Thu, Jan 21, 2016 at 3:41 PM, Cao jin wrote:
Hi,
IMHO, I think maybe modification on i801_smbus driver is easier.
Because when i801_smbus request_irq using pci_dev->ir
On Fri, Jan 22, 2016 at 12:13:49PM +, Wang Nan wrote:
> Add new ioctl() to pause/resume ring-buffer output.
>
> In some situations we want to read from ring buffer only when we
> ensure nothing can write to the ring buffer during reading. Without
> this patch we have to turn off all events att
Hi Liguo,
Thanks for the patch.
On Fri, Jan 22, 2016 at 1:38 AM, Liguo Zhang wrote:
> If 4GB mode is enable, we should add 4gb mode support in i2c driver.
> Set 4GB mode register to support 4GB mode.
>
> Signed-off-by: Liguo Zhang
> ---
> drivers/i2c/busses/i2c-mt65xx.c | 41
> +
On Fri, Jan 22, 2016 at 12:13:48PM +, Wang Nan wrote:
> This is v2 of this series.
>
> Compare with v1:
>
> Fixes several bugs in v1.
>
> Corresponsing perf has finished and can be found from:
>
> https://git.kernel.org/cgit/linux/kernel/git/pi3orama/linux.git/
> branch: perf/overwrite-b
On 12/28/2015 11:22 PM, Linus Torvalds wrote:
> On Mon, Dec 28, 2015 at 1:10 PM, Cyrill Gorcunov wrote:
>> Really sorry for delays. Konstantin, I slightly updated the
>> changelog (to point where problem came from). Linus are you
>> fine with accounting not only anonymous memory in VmData?
>
> Th
On Fri, Jan 22, 2016 at 01:38:47PM +0100, Peter Zijlstra wrote:
> On Fri, Jan 22, 2016 at 01:35:40PM +0200, Alexander Shishkin wrote:
> > Peter Zijlstra writes:
> >
> > > So I think there's a number of problems still :-(
I've been looking at how perf_event->owner is handled and couldn't
figure o
On Fri, Jan 22, 2016 at 02:09:10PM -0500, Vivek Goyal wrote:
> On Fri, Jan 22, 2016 at 10:00:19AM -0800, Shaohua Li wrote:
> > On Fri, Jan 22, 2016 at 10:52:36AM -0500, Vivek Goyal wrote:
> > > On Fri, Jan 22, 2016 at 09:48:22AM -0500, Tejun Heo wrote:
> > > > Hello, Shaohua.
> > > >
> > > > On Th
Function setup_access_params_addr is called only from probe function, hence
managed version dmam_alloc_coherent is used.
setup_access_params_addr has 2 goals-
-Initialize the access_params field so that it can be used to send and read
commands from the device in access_with_param
-Get a bus addre
On Fri, Jan 22, 2016 at 3:56 AM, Mimi Zohar wrote:
> On Fri, 2016-01-22 at 02:45 +0100, Luis R. Rodriguez wrote:
>> On Mon, Jan 04, 2016 at 03:48:29PM -0500, Josh Boyer wrote:
>> > On Wed, Dec 23, 2015 at 4:34 PM, Luis R. Rodriguez
>> > wrote:
>> > > From: David Howells
>> > >
>> > > We'll be fo
Avete bisogno di un prestito urgente? f sì Assicurati di contattarci via e-mail
per la soluzione di prestito
This is mostly stuff which missed the first pull request because it
needed to incubate longer. It's mainly made up of the ncr 5380 rework
but also has a few assorted bug fixes.
The patch is available here:
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-misc
The short changelog
On Fri, Jan 22, 2016 at 11:16 AM, Laura Abbott wrote:
> On 1/22/16 9:19 AM, David Brown wrote:
>>
>> On Tue, Jan 19, 2016 at 10:08:34AM -0800, Kees Cook wrote:
>>
>>> This introduces __ro_after_init as a way to mark such memory, and uses
>>> it on the x86 vDSO to kill an extant kernel exploitation
On Sat, 2016-01-23 at 01:21 +0530, Shraddha Barke wrote:
> Function setup_access_params_addr is called only from probe function, hence
> managed version dmam_alloc_coherent is used.
trivia:
> diff --git a/drivers/platform/goldfish/goldfish_pipe.c
> b/drivers/platform/goldfish/goldfish_pipe.c
[]
On Fri, Jan 22, 2016 at 11:45:51AM -0800, Shaohua Li wrote:
> On Fri, Jan 22, 2016 at 02:09:10PM -0500, Vivek Goyal wrote:
> > On Fri, Jan 22, 2016 at 10:00:19AM -0800, Shaohua Li wrote:
> > > On Fri, Jan 22, 2016 at 10:52:36AM -0500, Vivek Goyal wrote:
> > > > On Fri, Jan 22, 2016 at 09:48:22AM -0
On Mon, Jan 04, 2016 at 12:41:07PM -0800, Kees Cook wrote:
> On Wed, Dec 23, 2015 at 1:34 PM, Luis R. Rodriguez
> wrote:
> > From: "Luis R. Rodriguez"
> >
> > Historically firmware_class code was added to help
> > get device driver firmware binaries but these days
> > request_firmware*() helpers
On Fri, 22 Jan 2016 15:11:00 + Matt Fleming
wrote:
> > >> + md->phys_addr, md->phys_addr + size - 1,
> > >
> > > So I did s/ - 1// here, but worried.
> >
> > I'm pretty sure the series should go via efi tree.
>
> Right, because of the prerequisite patches sat in my tree
On Fri, Jan 22, 2016 at 10:43:59AM -0800, Linus Torvalds wrote:
> On Fri, Jan 22, 2016 at 10:29 AM, Ming Lei wrote:
> >
> > This patch fixes the issue by making the max io size aligned
> > to logical block size.
>
> Looks better, thanks.
>
> I'd suggest also moving the "max_sectors" variable int
> I would have expected that the main (and IMO sufficient) reason why
> the kernel should do it is because the particular bus used to connect
> a BT chip to the CPU is a hw detail that a kernel that does its job
> should keep to itself. Same as userspace not needing to care if a BT
> chip is behind
On Fri, Jan 22, 2016 at 08:42:11PM +0100, Christian Borntraeger wrote:
> On 12/28/2015 11:22 PM, Linus Torvalds wrote:
> > On Mon, Dec 28, 2015 at 1:10 PM, Cyrill Gorcunov wrote:
> >> Really sorry for delays. Konstantin, I slightly updated the
> >> changelog (to point where problem came from). Lin
On Fri, 22 Jan 2016 20:42:11 +0100 Christian Borntraeger
wrote:
> On 12/28/2015 11:22 PM, Linus Torvalds wrote:
> > On Mon, Dec 28, 2015 at 1:10 PM, Cyrill Gorcunov wrote:
> >> Really sorry for delays. Konstantin, I slightly updated the
> >> changelog (to point where problem came from). Linus a
On Fri, Jan 22, 2016 at 11:42 AM, Christian Borntraeger
wrote:
>
> Just want to mention that this patch breaks older versions of valgrind
> (including the current release)
> https://bugs.kde.org/show_bug.cgi?id=357833
Ugh. Looks like valgrind is doing something that fundamentally can't
be "tweake
Hi,
On Thu, Jan 21, 2016 at 01:26:35PM +0800, Chen-Yu Tsai wrote:
> mmc2 and mmc3 are available on the same pins, with different mux values.
> However, only mmc3 supports 8 bit DDR transfer modes.
>
> Since preference for mmc3 over mmc2 is due to DDR transfer modes, just
> set the drive strength
> The fact what include/linux/license.h:license_is_gpl_compatible includes
> "Dual MIT/GPL" as an option seems to suggest that it is enough of a thing
> to be validly used as the contents of a MODULE_LICENSE() thing.
Yes. The MIT licence most definitely exists, and people know what it
means.
Also
[ Grr. re-sending due to stupid html from android mobile app. ]
On Jan 22, 2016 12:11 PM, "Keith Busch" wrote:
>
> The value of max_sectors doesn't change in this function
Why do you say that? It depends on the offset, so it clearly *does* change.
Now, if the patch did what I suggested and made
On Fri, Jan 22, 2016 at 12:22:18PM -0800, Linus Torvalds wrote:
>
> On Jan 22, 2016 12:11 PM, "Keith Busch" wrote:
> >
> > The value of max_sectors doesn't change in this function
>
> Why do you say that? It depends on the offset, so it clearly *does* change.
The only "offset" used is the bio's
setup_access_params_addr has 2 goals-
-Initialize the access_params field so that it can be used to send and read
commands from the device in access_with_param
-Get a bus address for the allocated memory to transfer to the device.
Replace the combination of devm_kzalloc and _pa() with dmam_alloc_
Hi,
On Thu, Jan 21, 2016 at 01:26:36PM +0800, Chen-Yu Tsai wrote:
> According to Allwinner, only mmc3 supports 8 bit DDR transfers for eMMC.
> Switch to mmc3 for the onboard eMMC, and also assign vqmmc for signal
> voltage sensing/switching, and "cap-mmc-hw-reset" to denote this
> instance can use
* Sebastian Andrzej Siewior | 2016-01-22 13:54:43 [+0100]:
>> Should _TIF_WORK_MASK also contain _TIF_NEED_RESCHED_LAZY?
>
>Yes, and arm64 lacks the same bits.
That would be this. If a compiler is reading here and knows how to
improve the following, please let me know :)
diff --git a/arch/arm/in
Hello,
While running syzkaller fuzzer I've hit the following use-after-free:
==
BUG: KASAN: use-after-free in __sys_recvmmsg+0x6fa/0x7f0 at addr
88003b689ce0
Read of size 8 by task syz-executor/11997
=
On Fri, Jan 22, 2016 at 01:14:47PM -0600, Josh Poimboeuf wrote:
> On Fri, Jan 22, 2016 at 11:43:48AM -0600, Chris J Arges wrote:
> > On Thu, Jan 21, 2016 at 04:49:04PM -0600, Josh Poimboeuf wrote:
> > > This is v16 of the compile-time stack metadata validation patch set,
> > > along with proposed f
On Thu, Jan 21, 2016 at 01:26:38PM +0800, Chen-Yu Tsai wrote:
> mmc2 has a special pin for eMMC hardware reset, which is controllable
> from the controller. Add the "mmc-cap-hw-reset" property to denote that
> this controller supports this function, and the pins are actually used.
>
> Also increas
* Sebastian Andrzej Siewior | 2016-01-22 16:48:09 [+0100]:
>On 01/22/2016 04:35 PM, Grygorii Strashko wrote:
>> Additional note: RCU_BOOST now depends on RCU_EXPERT, so commit
>> 3da4cab "rcu: make RCU_BOOST default on RT" is nop now.
>>
>> config RCU_BOOST
>> bool "Enable RCU priority boosti
On Fri, Jan 22, 2016 at 09:55:44AM +0100, Geert Uytterhoeven wrote:
> Hi Paul,
>
> On Thu, Jan 21, 2016 at 5:06 PM, Paul E. McKenney
> wrote:
> > On Thu, Jan 21, 2016 at 02:22:56PM +0100, Geert Uytterhoeven wrote:
> >> On Thu, Dec 10, 2015 at 12:10 AM, Paul E. McKenney
> >> wrote:
> >> > This co
Em Mon, Nov 30, 2015 at 10:02:21AM +0100, Stephane Eranian escreveu:
> This patch adds a --jit/-j option to perf inject.
>
> This options injects MMAP records into the perf.data
> file to cover the jitted code mmaps. It also emits
> ELF images for each function in the jidump file.
> Those images a
On Thu, Jan 21, 2016 at 01:26:39PM +0800, Chen-Yu Tsai wrote:
> sun9i/A80 MMC controllers have a larger FIFO, and the FIFO DMA
> trigger levels can be increased. Also, the mmc module clock parent
> has a higher clock rate, and the sample and output delay phases
> are different.
>
> Signed-off-by:
On Sat, 2016-01-23 at 02:08 +0530, Shraddha Barke wrote:
> setup_access_params_addr has 2 goals-
>
> -Initialize the access_params field so that it can be used to send and read
> commands from the device in access_with_param
> -Get a bus address for the allocated memory to transfer to the device.
On Fri, Jan 22, 2016 at 02:40:35PM -0600, Chris J Arges wrote:
> On Fri, Jan 22, 2016 at 01:14:47PM -0600, Josh Poimboeuf wrote:
> > On Fri, Jan 22, 2016 at 11:43:48AM -0600, Chris J Arges wrote:
> > > On Thu, Jan 21, 2016 at 04:49:04PM -0600, Josh Poimboeuf wrote:
> > > > This is v16 of the compil
Hi Linus,
Please pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git for-linus
to receive second round of updates for the input subsystem, mainly
changes to xpad driver to better hanlde Xbox One controllers.
Changelog:
-
Clement Calmels (1):
Input: xpa
Jarod Wilson wrote:
>The network core tries to keep track of dropped packets, but some packets
>you wouldn't really call dropped, so much as intentionally ignored, under
>certain circumstances. One such case is that of bonding and team device
>slaves that are currently inactive. Their respective
From: One Thousand Gnomes
Date: Fri, 22 Jan 2016 20:25:21 +
>> The fact what include/linux/license.h:license_is_gpl_compatible includes
>> "Dual MIT/GPL" as an option seems to suggest that it is enough of a thing
>> to be validly used as the contents of a MODULE_LICENSE() thing.
>
> Yes. The
Hello,
While running syzkaller fuzzer I hit the following problem. Supervisor
process sandboxes worker processes that do random activities with
CLONE_NEWUSER | CLONE_NEWNS | CLONE_NEWPID | CLONE_NEWUTS |
CLONE_NEWNET | CLONE_NEWIPC | CLONE_IO, setrlimit, chroot, etc.
Because of that worker process
On Fri, 22 Jan 2016 09:20:41 +0100 Ard Biesheuvel
wrote:
> > : in half since offsets can typically be expressed in 32 bits.
> > :
> """
>
> In addition to fixing the broken grammar, would it make sense to
> mention that dynamic relocation only occurs under
> CONFIG_RELOCATABLE=y? I.e., somethin
On Fri, 22 Jan 2016 00:26:15 -0500 Rich Felker wrote:
> From: Rich Felker
>
> Add Yoshinori Sato and Rich Felker as maintainers for arch/sh
> (SUPERH).
>
> Signed-off-by: Rich Felker
> Signed-off-by: Yoshinori Sato
> Acked-by: D. Jeff Dionne
> Acked-by: Rob Landley
> Acked-by: Peter Zijlst
- Original Message -
> From: "Alexei Starovoitov"
> To: "Adam Jackson"
> Cc: "Arnaldo Carvalho de Melo" , "Wang Nan"
> , a...@kernel.org,
> linux-kernel@vger.kernel.org, "Daniel Borkmann" , "Li
> Zefan" ,
> pi3or...@163.com, "Dave Airlie"
> Sent: Saturday, 23 January, 2016 3:42:30 AM
I have noticed an annoying regression that was introduced in 4.2 and is
still there in 4.4. mmap writes to FUSE filesystems are throttled down
to basically zero.
Reproducer: https://github.com/rfjakob/mmapwrite , testing against encfs:
$ mmapwrite /tmp/encfs-mnt/foo
1 ..
setup_access_params_addr has 2 goals-
-Initialize the access_params field so that it can be used to send and read
commands from the device in access_with_param
-Get a bus address for the allocated memory to transfer to the device.
Replace the combination of devm_kzalloc and _pa() with dmam_alloc_
Em Fri, Jan 22, 2016 at 09:39:53PM +0100, Dmitry Vyukov escreveu:
> While running syzkaller fuzzer I've hit the following use-after-free:
> Call Trace:
> [] __asan_report_load8_noabort+0x3e/0x40
> mm/kasan/report.c:295
> [] __sys_recvmmsg+0x6fa/0x7f0 net/socket.c:2261
> [< inline >]
On Tue, Dec 8, 2015 at 10:38 AM, Kees Cook wrote:
> On Mon, Dec 7, 2015 at 11:47 PM, Ard Biesheuvel
> wrote:
>> On 7 December 2015 at 23:35, Kees Cook wrote:
>>> When rodata is large enough that it crosses a section boundary after the
>>> kernel text, mark the rest NX. This is as close to full N
On Fri, Jan 22, 2016 at 10:06:14PM +0100, Dmitry Vyukov wrote:
> Hello,
>
> While running syzkaller fuzzer I hit the following problem. Supervisor
> process sandboxes worker processes that do random activities with
> CLONE_NEWUSER | CLONE_NEWNS | CLONE_NEWPID | CLONE_NEWUTS |
> CLONE_NEWNET | CLON
On Fri, Jan 22, 2016 at 12:44 PM, Arnaldo Carvalho de Melo
wrote:
> Em Mon, Nov 30, 2015 at 10:02:21AM +0100, Stephane Eranian escreveu:
>> This patch adds a --jit/-j option to perf inject.
>>
>> This options injects MMAP records into the perf.data
>> file to cover the jitted code mmaps. It also e
On Fri, Jan 22, 2016 at 9:30 AM, Alexei Starovoitov
wrote:
> On Fri, Jan 22, 2016 at 03:30:00PM +0900, Daniel Sangorrin wrote:
>> This patch allows applications to restrict the order in which
>> its system calls may be requested. In order to do that, we
>> provide seccomp-BPF scripts with informat
On Fri, Jan 22, 2016 at 11:15:28AM -0800, Joe Perches wrote:
> On Thu, 2016-01-21 at 20:24 +, Mark Brown wrote:
> > - bool continuous_voltage_range;
> > + unsigned int continuous_voltage_range:1;
> Is this really valuable?
> There are already padding bytes that are unused
> and adding a
On 01/22/2016 10:16 AM, kbuild test robot wrote:
> [auto build test ERROR on next-20160122]
> [also build test ERROR on v4.4]
> [cannot apply to drm/drm-next linuxtv-media/master v4.4-rc8 v4.4-rc7 v4.4-rc6]
> [if your patch is applied to the wrong git tree, please drop us a not
Changes from v2:
- Added a WARN_ON_ONCE() to dax_radix_entry() to enforce the assumption
that we never insert a PMD DAX entry that isn't dirty. (Jan)
- Added checks to ensure that 'entry' is non-NULL before passing it to
RADIX_DAX_TYPE(). This worked correclty before because RADIX_DAX_TYP
Signed-off-by: Boris Ostrovsky
---
arch/x86/xen/smp.c | 57
arch/x86/xen/smp.h |4 +++
arch/x86/xen/xen-hvmlite.S |7 +
3 files changed, 63 insertions(+), 5 deletions(-)
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.
Xen's HVMlite guests will want to use them.
Signed-off-by: Boris Ostrovsky
---
arch/x86/include/asm/smp.h |1 +
arch/x86/kernel/head_32.S |2 +-
arch/x86/kernel/smpboot.c |2 +-
3 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/inc
xen_timer_init() will be called from apic_bsp_setup().
Signed-off-by: Boris Ostrovsky
---
arch/x86/xen/time.c |5 -
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index a0a4e55..93745e7 100644
--- a/arch/x86/xen/time.c
+++ b/arch/
.. just like we currently do for PVH guests
Signed-off-by: Boris Ostrovsky
---
arch/x86/xen/grant-table.c |4 ++--
drivers/xen/grant-table.c |8
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/xen/grant-table.c b/arch/x86/xen/grant-table.c
index e079500.
HVMlite guests need to be viewed as having APIC, otherwise smpboot code,
for example, will complain.
Signed-off-by: Boris Ostrovsky
---
Not sure about xen_cpu_present_to_apicid() being an identity function, given
xen_x86_32_early_logical_apicid().
arch/x86/xen/apic.c | 39 +++
Subsequent patch will add support for starting secondary VCPUs in
HVMlite guest. This patch exists to make review easier.
No functional changes (except for introduction of 'if (!xen_hvmlite)').
Signed-off-by: Boris Ostrovsky
---
arch/x86/xen/smp.c | 104
When offlining, we should properly clean up interrupts and wait
until hypervisor declares VCPU as down before cleaning up.
After VCPU that was previously offlined is brought back to life
we want to jump back to bare-metal entry points. It's a simple
jump on 64-bit but requires minor tweaking for 3
Fix the way that DAX PMD radix tree entries are handled. With this patch
we now check to see if a PMD entry exists in the radix tree on write, even
if we are just trying to insert a PTE. If it exists, we dirty that instead
of inserting our own PTE entry.
Fix a bug in the PMD path in dax_writebac
Signed-off-by: Boris Ostrovsky
---
include/xen/interface/elfnote.h | 12 +++-
include/xen/interface/hvm/hvm_vcpu.h | 143 ++
include/xen/interface/xen.h | 24 ++
3 files changed, 178 insertions(+), 1 deletions(-)
create mode 100644 include/x
Start HVMlite guest XEN_ELFNOTE_PHYS32_ENTRY address. Setup hypercall
page, initialize boot_params, enable early page tables.
Signed-off-by: Boris Ostrovsky
---
arch/x86/xen/Makefile |1 +
arch/x86/xen/enlighten.c | 91 +-
arch/x86/xen/xen-hvmlite.S | 158 ++
This series introduces HVMlite support for unprivileged guests.
It has been tested on Intel/AMD, both 32- and 64-bit, including CPU on- and
offlining and save/restore. (Restore will result in APIC write warnings
which exist now for 32-bit PV guests as well so I didn't address this in
this series)
On Fri, Jan 22, 2016 at 10:21 PM, Al Viro wrote:
> On Fri, Jan 22, 2016 at 10:06:14PM +0100, Dmitry Vyukov wrote:
>> Hello,
>>
>> While running syzkaller fuzzer I hit the following problem. Supervisor
>> process sandboxes worker processes that do random activities with
>> CLONE_NEWUSER | CLONE_NEW
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