When the schedule tick is disabled in tick_nohz_stop_sched_tick(),
we call hrtimer_cancel(), which eventually calls down into
__remove_hrtimer() and thus into hrtimer_force_reprogram().
That function's call to tick_program_event() detects that
we are trying to set the expiration to KTIME_MAX and ca
By default, if a task in task isolation mode re-enters the kernel,
it is terminated with SIGKILL. With this commit, the application
can choose what signal to receive on a task isolation violation
by invoking prctl() with PR_TASK_ISOLATION_ENABLE, or'ing in the
PR_TASK_ISOLATION_USERSIG bit, and se
In commit f01f17d3705b ("mm, vmstat: make quiet_vmstat lighter")
the quiet_vmstat() function became asynchronous, in the sense that
the vmstat work was still scheduled to run on the core when the
function returned. For task isolation, we need a synchronous
version of the function that guarantees t
In exit_to_usermode_loop(), call task_isolation_ready() for
TIF_TASK_ISOLATION tasks when we are checking the thread-info flags,
and after we've handled the other work, call task_isolation_enter()
for such tasks.
In syscall_trace_enter_phase1(), we add the necessary support for
reporting syscalls
In do_notify_resume(), call task_isolation_ready() for
TIF_TASK_ISOLATION tasks when we are checking the thread-info flags;
and after we've handled the other work, call task_isolation_enter()
for such tasks. To ensure we always call task_isolation_enter() when
returning to userspace, add _TIF_TASK
We add the necessary call to task_isolation_enter() in the
prepare_exit_to_usermode() routine. We already unconditionally
call into this routine if TIF_NOHZ is set, since that's where
we do the user_enter() call.
We add calls to task_isolation_quiet_exception() in places
where exceptions may not
Currently ret_fast_syscall, work_pending, and ret_to_user form an ad-hoc
state machine that can be difficult to reason about due to duplicated
code and a large number of branch targets.
This patch factors the common logic out into the existing
do_notify_resume function, converting the code to C in
From: Christoph Lameter
watchdog checks can only run on housekeeping capable cpus. Otherwise
we will be generating noise that we would like to avoid on the isolated
processors.
Signed-off-by: Christoph Lameter
Signed-off-by: Chris Metcalf
[line-wrapped and added equivalent fix in clocksource
This commit adds support for tracking asynchronous interrupts
delivered to task-isolation tasks, e.g. IPIs or IRQs. Just
as for exceptions and syscalls, when this occurs we arrange to
deliver a signal to the task so that it knows it has been
interrupted. If the task is interrupted by an NMI, we c
Here is a respin of the task-isolation patch set. This primarily
reflects some testing on x86, and a rebase to 4.8.
I have been getting email asking me when and where this patch will be
upstreamed so folks can start using it. I had been thinking the
obvious path was via Frederic Weisbecker to In
This option, similar to NO_HZ_FULL_ALL, simplifies configuring
a system to boot by default with all cores except the boot core
running in task isolation mode.
Signed-off-by: Chris Metcalf
---
init/Kconfig | 10 ++
kernel/isolation.c | 6 ++
2 files changed, 16 insertions(+)
d
This per-cpu check was being done in the loop in lru_add_drain_all(),
but having it be callable for a particular cpu is helpful for the
task-isolation patches.
Signed-off-by: Chris Metcalf
---
include/linux/swap.h | 1 +
mm/swap.c| 15 ++-
2 files changed, 11 insertions(
The existing nohz_full mode is designed as a "soft" isolation mode
that makes tradeoffs to minimize userspace interruptions while
still attempting to avoid overheads in the kernel entry/exit path,
to provide 100% kernel semantics, etc.
However, some applications require a "hard" commitment from th
This code tests various aspects of task_isolation.
Signed-off-by: Chris Metcalf
---
tools/testing/selftests/Makefile | 1 +
tools/testing/selftests/task_isolation/Makefile| 11 +
tools/testing/selftests/task_isolation/config | 2 +
tools/testing/selftests/task_iso
This function checks to see if a vmstat worker is not running,
and the vmstat diffs don't require an update. The function is
called from the task-isolation code to see if we need to
actually do some work to quiet vmstat.
Acked-by: Christoph Lameter
Signed-off-by: Chris Metcalf
---
include/linu
On Tue, 09 Aug 2016, Jason Cooper wrote:
> Perhaps a /dev/hwrng[0-9] per rng? That would lend itself nicely to a
> sysfs interface for per device quality, rate, and enabled attributes.
> e.g. /sys/class/hw_random/hwrng0/{device/,quality,rate,enabled}
IMHO, this is mightly annoying to use from ins
The core will do this for us now.
Signed-off-by: Wolfram Sang
---
drivers/i2c/busses/i2c-uniphier-f.c | 5 -
drivers/i2c/busses/i2c-uniphier.c | 5 -
2 files changed, 10 deletions(-)
diff --git a/drivers/i2c/busses/i2c-uniphier-f.c
b/drivers/i2c/busses/i2c-uniphier-f.c
index aeead0d2
On 2016-08-09 12:29 PM, Mateusz Guzik wrote:
On Tue, Aug 09, 2016 at 12:05:43PM -0400, robert.f...@collabora.com wrote:
From: Sonny Rao
This is based on earlier work by Thiago Goncales. It implements a new
per process proc file which summarizes the contents of the smaps file
but doesn't disp
On Tue, Aug 09, 2016 at 09:04:35PM +0100, Alan Cox wrote:
> > > (Going back to pick up the specific licence thread)
>
> > >
> > > I'd like to see Richard do so as well.
> > With Richard that's 3 attorneys now.
>
> None of whom I believe represent the Linux project or foundation ?
>
> Linus has
Quoting Tejun Heo (t...@kernel.org):
> Hello, Serge.
>
> On Tue, Aug 09, 2016 at 10:33:05AM -0500, Serge E. Hallyn wrote:
> > > + for (i = depth_to - 1; i >= 0; i--) {
> > > + for (kn = kn_to, j = 0; j < i; j++)
> > > + kn = kn->parent;
> >
> > This is O(n^2) where n is th
On Mon, 8 Aug 2016, Pavel Machek wrote:
> 64-bit kernel, I assume?
>
> I believe that is known:
>
> From: "Rafael J. Wysocki"
> To: Thomas Garnier
> Cc: "Rafael J. Wysocki" , Borislav Petkov ,
> "Rafael J. Wysocki"
> , Linux PM list ,
> the arch/x86 maintainers
> , Linu
On Sat, Jul 23, 2016 at 02:34:08AM +0800, tom.t...@gmail.com wrote:
> From: Tom Yan
>
> ata_mselect_*() would initialize a char array for storing a copy of
> the current mode page. However, char could be signed char. In that
> case, bytes larger than 127 would be converted to negative number.
>
- On Aug 3, 2016, at 9:19 AM, Peter Zijlstra pet...@infradead.org wrote:
> On Thu, Jul 21, 2016 at 05:14:16PM -0400, Mathieu Desnoyers wrote:
[...]
>
>> diff --git a/include/linux/sched.h b/include/linux/sched.h
>> index 253538f..5c4b900 100644
>> --- a/include/linux/sched.h
>> +++ b/include/
On Tue 2016-08-09 10:54:15, Jiri Kosina wrote:
> On Tue, 9 Aug 2016, Jiri Kosina wrote:
>
> > current Linus' tree (HEAD 65ea11ec6, so basically 4.8-rc1+) has broken
> > resume from hibernation on my x200s.
> >
> > Suspend works correctly, resuming proceeds up to the point where it
> > reports 1
> > (Going back to pick up the specific licence thread)
> >
> > I'd like to see Richard do so as well.
> With Richard that's 3 attorneys now.
None of whom I believe represent the Linux project or foundation ?
Linus has to make this call, nobody else and he is probablygoing to go
ape if you try
On Tue, 9 Aug 2016, Rafael J. Wysocki wrote:
> I have a murky suspicion, but it is really weird. Namely, what if
> restore_jump_address in set_up_temporary_text_mapping() happens to be
> covered by the restore kernel's identity mapping? Then, the image
> kernel's entry point may get overwritten
Hello, Serge.
On Tue, Aug 09, 2016 at 10:33:05AM -0500, Serge E. Hallyn wrote:
> > + for (i = depth_to - 1; i >= 0; i--) {
> > + for (kn = kn_to, j = 0; j < i; j++)
> > + kn = kn->parent;
>
> This is O(n^2) where n is the path depth. It's not a hot path, though, do
Ville Syrjälä reports "The first time I run hwclock after rebooting
I get this:
open("/dev/rtc", O_RDONLY) = 3
ioctl(3, PHN_SET_REGS or RTC_UIE_ON, 0) = 0
select(4, [3], NULL, NULL, {10, 0}) = 0 (Timeout)
ioctl(3, PHN_NOT_OH or RTC_UIE_OFF, 0) = 0
close(3)
/log/?h=rxrpc-fixes
>
> Tagged thusly:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
> rxrpc-fixes-20160809
Pulled, thanks David.
On 08/09/2016 02:23 PM, kbuild test robot wrote:
Hi Waiman,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.8-rc1 next-20160809]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux
The dlock list needs one list for each of the CPUs available. However,
for sibling CPUs, they are sharing the L2 and probably L1 caches
too. As a result, there is not much to gain in term of avoiding
cacheline contention while increasing the cacheline footprint of the
L1/L2 caches as separate lists
On 22 June 2016 at 21:02, Mika Westerberg
wrote:
> Add support for the SPI serial flash host controller found on many Intel
> CPUs including Baytrail and Braswell. The SPI serial flash controller is
> used to access BIOS and other platform specific information. By default the
> driver exposes a si
On Tue, Aug 09, 2016 at 12:05:43PM -0400, robert.f...@collabora.com wrote:
> From: Sonny Rao
>
> This is based on earlier work by Thiago Goncales. It implements a new
> per process proc file which summarizes the contents of the smaps file
> but doesn't display any addresses. It gives more detail
Commit-ID: 99e608b5954c9e1ebadbf9660b74697d9dfd9f20
Gitweb: http://git.kernel.org/tip/99e608b5954c9e1ebadbf9660b74697d9dfd9f20
Author: Ravi Bangoria
AuthorDate: Tue, 9 Aug 2016 01:23:25 -0500
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 12:14:29 -0300
perf probe ppc6
Commit-ID: d820456dc70b231d62171ba46b43db0045e9bd57
Gitweb: http://git.kernel.org/tip/d820456dc70b231d62171ba46b43db0045e9bd57
Author: Ravi Bangoria
AuthorDate: Tue, 9 Aug 2016 01:23:24 -0500
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 12:09:59 -0300
perf probe: Add
Commit-ID: 840b49ba554b40fa8301ad2716abd2fe3d9e382a
Gitweb: http://git.kernel.org/tip/840b49ba554b40fa8301ad2716abd2fe3d9e382a
Author: Arnaldo Carvalho de Melo
AuthorDate: Tue, 9 Aug 2016 11:56:33 -0300
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 11:56:33 -0300
tool
Commit-ID: 791cceb89f7987c0375ff2e8971928a47f62ccae
Gitweb: http://git.kernel.org/tip/791cceb89f7987c0375ff2e8971928a47f62ccae
Author: Arnaldo Carvalho de Melo
AuthorDate: Tue, 9 Aug 2016 11:48:07 -0300
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 11:48:07 -0300
toop
Commit-ID: 19f00b011729417f69e4df53cc3fe5ecc25134a4
Gitweb: http://git.kernel.org/tip/19f00b011729417f69e4df53cc3fe5ecc25134a4
Author: Naohiro Aota
AuthorDate: Tue, 9 Aug 2016 11:40:08 +0900
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 10:52:22 -0300
perf probe: Supp
Commit-ID: bebfb730125863aac74607dff24f1bdb9fb02a90
Gitweb: http://git.kernel.org/tip/bebfb730125863aac74607dff24f1bdb9fb02a90
Author: Arnaldo Carvalho de Melo
AuthorDate: Tue, 9 Aug 2016 11:21:57 -0300
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 11:21:57 -0300
tool
Commit-ID: bcdc09af3ef30ef071677544ce23a1c8873a2dda
Gitweb: http://git.kernel.org/tip/bcdc09af3ef30ef071677544ce23a1c8873a2dda
Author: Brendan Gregg
AuthorDate: Wed, 3 Aug 2016 02:47:49 +
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 10:46:43 -0300
perf script: Ad
Commit-ID: 3df33eff2ba96be4f1535db4f672013d756dc9b1
Gitweb: http://git.kernel.org/tip/3df33eff2ba96be4f1535db4f672013d756dc9b1
Author: Mark Rutland
AuthorDate: Tue, 9 Aug 2016 14:04:29 +0100
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 10:48:32 -0300
perf stat: Avoid
Commit-ID: cb3f3378cd09aa3fe975b4ad5ee0229dc76315bb
Gitweb: http://git.kernel.org/tip/cb3f3378cd09aa3fe975b4ad5ee0229dc76315bb
Author: Konstantin Khlebnikov
AuthorDate: Fri, 5 Aug 2016 15:22:36 +0300
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 10:48:09 -0300
perf pr
Commit-ID: 8e34189b347d76acf48ce05831176582201b664d
Gitweb: http://git.kernel.org/tip/8e34189b347d76acf48ce05831176582201b664d
Author: Masami Hiramatsu
AuthorDate: Sat, 6 Aug 2016 19:29:48 +0900
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 10:47:43 -0300
perf probe:
Commit-ID: 887fa86d6fd7a45cee2d0f9d5f75026786d61df2
Gitweb: http://git.kernel.org/tip/887fa86d6fd7a45cee2d0f9d5f75026786d61df2
Author: Arnaldo Carvalho de Melo
AuthorDate: Fri, 5 Aug 2016 12:37:21 -0300
Committer: Arnaldo Carvalho de Melo
CommitDate: Tue, 9 Aug 2016 10:46:56 -0300
perf
On Tue, Aug 9, 2016 at 7:05 PM, wrote:
> From: Sonny Rao
>
> This is based on earlier work by Thiago Goncales. It implements a new
> per process proc file which summarizes the contents of the smaps file
> but doesn't display any addresses. It gives more detailed information
> than statm like th
:02:38 +0200)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git
> tags/perf-urgent-for-mingo-20160809
>
> for you to fetch changes up to 99e608b5954c9e1ebadbf9660b74697d9dfd9f20:
>
> perf probe ppc64le: F
On 32-bit powerps the ELF PLT sections of binaries (built with --bss-plt,
or with a toolchain which defaults to it) look like this:
[17] .sbss NOBITS 0002aff8 01aff8 14 00 WA 0 0 4
[18] .plt NOBITS 0002b00c 01aff8 84 00 WAX 0 0 4
[1
On 08/08/2016 09:07 PM, Kees Cook wrote:
On Mon, Aug 8, 2016 at 7:55 AM, Denys Vlasenko wrote:
On 32-bit powerps the ELF PLT sections of binaries (built with --bss-plt,
or with a toolchain which defaults to it) look like this:
[17] .sbss NOBITS 0002aff8 01aff8 14 0
Hi Waiman,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.8-rc1 next-20160809]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Waiman-Long/vfs-Use-dlock-list-for-SB-s
Jason Cooper writes:
> On another thread, regarding the ath9k-rng (actually just the adc
> registers), Henrique asked about per-source knobs. My suggestion
> follows from that.
I'd do that with the source-specific driver instead of attempting to
route controls through hwrng. Anything else seems
> -Original Message-
> From: Avargil, Raanan
> Sent: Tuesday, August 9, 2016 8:11 AM
> To: Denis Turischev ; intel-wired-
> l...@lists.osuosl.org; Brown, Aaron F ; Kirsher,
> Jeffrey T
> Cc: net...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [Intel-wired-lan] e1000e: PHY
Hi,
[adding some people to CC]
On Wed, Aug 03, 2016 at 10:03:46AM -0400, Sven Van Asbroeck wrote:
> The device's model download function returns the model data as
> an array of u32s, which is later compared to the reference
> model data. However, since the latter is an array of u16s,
> the compar
Robert Jarzmik writes:
> The commit 9bf448c66d4b ("ARM: pxa: use generic gpio operation instead of
> gpio register") from Oct 17, 2011, leads to the following static checker
> warning:
> arch/arm/mach-pxa/spitz_pm.c:172 spitz_charger_wakeup()
> warn: double left shift '!gpio_get_value(SPITZ_G
Hi Benjamin, Hi Michael,
regarding commit 51d7d5205d33 ("powerpc: Add smp_mb() to
arch_spin_is_locked()"):
For the ipc/sem code, I would like to replace the spin_is_locked() with
a smp_load_acquire(), see:
http://git.cmpxchg.org/cgit.cgi/linux-mmots.git/tree/ipc/sem.c#n367
http://www.ozlab
On 08/02, Pratyush Anand wrote:
>
> This patch adds support for uprobe on ARM64 architecture.
I know nothing about ARM, so I can't actually review this change.
But it looks good to me ;)
Just one note,
> +int arch_uprobe_pre_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
> +{
> + str
On 08/09/2016 10:15 AM, Oleg Nesterov wrote:
> On 08/08, Bart Van Assche wrote:
>>
>> No external modules were loaded when I triggered the lockup
>
> Heh. Could you test the patch below?
>
> Oleg.
>
> --- x/kernel/sched/wait.c
> +++ x/kernel/sched/wait.c
> @@ -283,7 +283,7 @@ void abort_exclusiv
On Sun, Jul 31, 2016 at 9:03 PM, Nicholas Piggin wrote:
> On Thu, 28 Jul 2016 16:07:18 -0700
> Andrey Smirnov wrote:
>
>> Convert fsl_rstcr_restart into a function to be registered with
>> register_reset_handler().
>>
>> Signed-off-by: Andrey Smirnov
>> ---
>>
>> Changes since v1:
>>
>> -
On Tue, 2016-08-09 at 20:40 +0200, Luis R. Rodriguez wrote:
> On Tue, Aug 09, 2016 at 01:04:00PM -0400, Mark Salter wrote:
> >
> > On Tue, 2016-08-09 at 06:37 -0700, Guenter Roeck wrote:
> > >
> > > On 08/09/2016 01:11 AM, Luis R. Rodriguez wrote:
> > > >
> > > >
> > > > Mark, Aurelien,
> > > >
Hi Waiman,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.8-rc1 next-20160809]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Waiman-Long/vfs-Use-dlock-list-for-SB-s
Hi,
On Fri, Jul 29, 2016 at 04:08:51PM +0530, Amitkumar Karwar wrote:
> The patch corrects the revision id register and uses it along with
> magic value and chip version registers to download appropriate firmware
> image.
>
> PCIe8997 Z chipset variant code has been removed, as it won't be used i
On Tue, Aug 09, 2016 at 01:56:31PM -0400, Prarit Bhargava wrote:
> Capitalize R in RIP.
>
> Signed-off-by: Prarit Bhargava
> Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: "H. Peter Anvin"
> Cc: x...@kernel.org
> Cc: Andy Lutomirski
> Cc: Borislav Petkov
> Cc: Andrew Morton
> Cc: Ard Biesheuve
On Tue, Aug 09, 2016 at 01:04:00PM -0400, Mark Salter wrote:
> On Tue, 2016-08-09 at 06:37 -0700, Guenter Roeck wrote:
> > On 08/09/2016 01:11 AM, Luis R. Rodriguez wrote:
> > >
> > > Mark, Aurelien,
> > >
> > > I've run into a linker (ld) issue caused by the linker table work I've
> > > been wor
On Tue, 9 Aug 2016 15:28:57 -0300
Daniel Bristot de Oliveira wrote:
> On 08/09/2016 03:05 PM, Steven Rostedt wrote:
> > If an arch supports counting of SMIs (like newer intel chips do), then it
> > can implement arch_smi_count() to return the number of SMIs that were
> > triggered. The hwlat dete
On 08/08/2016 01:37 PM, Peter Zijlstra wrote:
On Mon, Jul 18, 2016 at 04:39:26PM -0400, Waiman Long wrote:
As both an optimistic spinner and a waiter-spinner (a woken task from
the wait queue spinning) can be spinning on the lock at the same time,
we cannot ensure forward progress for the waiter
On Tue, 9 Aug 2016 14:44:26 +0200 Peter Zijlstra wrote:
> On Thu, Aug 04, 2016 at 06:44:09PM +0200, Peter Zijlstra wrote:
> > On Thu, Jul 28, 2016 at 04:33:34PM -0700, Davidlohr Bueso wrote:
> > > Hi,
> > >
> > > I'm resending Sebastian's sysv msg queue use of wake_qs but updated
> > > to the la
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 81abf2525827b29839a78fd55ab0699f033c41a5
commit: 0b6320dfdfea4c68602fa3b8a8d944bf9e442079 drm/virtio: make fbdev support
really optional
date: 3 weeks ago
config: x86_64-randconfig-a0-08100141 (attached as
On Tue, 9 Aug 2016 13:15:16 -0500
Clark Williams wrote:
> On Thu, 4 Aug 2016 11:30:33 -0400
> Steven Rostedt wrote:
>
> > Note, I'm currently working on adding code to detect NMIs to this as
> > well. And perhaps even tracing SMI counters. Just to show what caused
> > the latency, as latency is
On 08/09/2016 03:05 PM, Steven Rostedt wrote:
> If an arch supports counting of SMIs (like newer intel chips do), then it
> can implement arch_smi_count() to return the number of SMIs that were
> triggered. The hwlat detector will call this function to get the current
> number of SMIs, and then aft
On Tue, Aug 9, 2016 at 9:58 AM, Alexey Dobriyan wrote:
>
> On Tue, Aug 09, 2016 at 12:05:43PM -0400, robert.f...@collabora.com wrote:
> > From: Sonny Rao
> >
> > This is based on earlier work by Thiago Goncales. It implements a new
> > per process proc file which summarizes the contents of the sm
On Sun, Jul 31, 2016 at 8:47 PM, Nicholas Piggin wrote:
> On Thu, 28 Jul 2016 16:07:17 -0700
> Andrey Smirnov wrote:
>
>> Call out to all restart handlers that were added via
>> register_restart_handler() API when restarting the machine.
>>
>> Signed-off-by: Andrey Smirnov
>> ---
>>
>> No change
On Mon, Aug 08, 2016 at 05:48:20PM -0600, Shuah Khan wrote:
> Fix unsupported GEM memory type error message to include the memory type
> information.
>
> Signed-off-by: Shuah Khan
> ---
> Changes since v1:
> -- Comment changed to read clearly
>
> drivers/gpu/drm/exynos/exynos_drm_fb.c | 6 +++--
Hi Keith,
On Tue, Aug 09, 2016 at 10:58:05AM -0700, Keith Packard wrote:
> Jason Cooper writes:
> > Perhaps a /dev/hwrng[0-9] per rng? That would lend itself nicely to a
> > sysfs interface for per device quality, rate, and enabled attributes.
> > e.g. /sys/class/hw_random/hwrng0/{device/,qualit
Hi Waiman,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.8-rc1 next-20160809]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Waiman-Long/vfs-Use-dlock-list-for-SB-s
On 8/9/2016 8:43 AM, Petr Mladek wrote:
On Mon 2016-08-08 12:03:38, Chris Metcalf wrote:
When doing an nmi backtrace of many cores, most of which are idle,
the output is a little overwhelming and very uninformative. Suppress
messages for cpus that are idling when they are interrupted and just
e
On Thu, 4 Aug 2016 11:30:33 -0400
Steven Rostedt wrote:
> Note, I'm currently working on adding code to detect NMIs to this as
> well. And perhaps even tracing SMI counters. Just to show what caused
> the latency, as latency isn't measured by the counters (that I know of).
>
I like the trace re
On Tue, Aug 9, 2016 at 5:54 AM, Alexey Kardashevskiy wrote:
> On 10/02/16 08:04, Bjorn Helgaas wrote:
>> On Wed, Jan 13, 2016 at 12:25:34PM +0100, Hannes Reinecke wrote:
>>> PCI-2.2 VPD entries have a maximum size of 32k, but might actually
>>> be smaller than that. To figure out the actual size o
Hi Tomasz
On 9 August 2016 at 19:03, Tomasz Nowicki wrote:
> Hi Fu,
>
> Are you planing to respin the series based on v4.8-rc1 ? My IORT patches
> depend on this series since they will end up in the same drivers/acpi/arm64/
>
> I think patches are in good shape so we need to enquire who is going
On Tue, 09 Aug 2016, Bjorn Andersson wrote:
> On Thu 04 Aug 02:21 PDT 2016, Lee Jones wrote:
>
> > Before this patch, the dma_alloc_coherent() failure path printed out:
> >
> > "dma_alloc_coherent err: 16760832"
> >
> > ... alluding to the Linux error code being 16760832, but seeing as
> > Li
On Tue, 09 Aug 2016, Bjorn Andersson wrote:
> On Thu 04 Aug 02:21 PDT 2016, Lee Jones wrote:
>
> > Trivial patch to clean up a couple of minor misgivings.
> >
> > Signed-off-by: Lee Jones
>
> Acked-by: Bjorn Andersson
You can just take it.
> Although as I hope to stack this series ontop of
On Tue, 09 Aug 2016, Bjorn Andersson wrote:
> On Thu 04 Aug 02:21 PDT 2016, Lee Jones wrote:
>
> > These types of error prints are superfluous. The system will
> > pick up on OOM issues and let the user know.
> >
> > Signed-off-by: Lee Jones
>
> Acked-by: Bjorn Andersson
This doesn't rely o
If an arch supports counting of SMIs (like newer intel chips do), then it
can implement arch_smi_count() to return the number of SMIs that were
triggered. The hwlat detector will call this function to get the current
number of SMIs, and then after a period, it will read that function again,
and if
Fix incorrect rk3399 aclk_vio gating bit, it should be 0, not 10. With
this modification, the aclk_vio_noc should be put into critical list,
since it is required by VOP.
And the Type-C DP need these clocks: aclk_hdcp_noc, hclk_hdcp_noc,
pclk_hdcp_noc. Mark them as critical to avoid someone close th
On 8/9/2016 6:37 AM, Lorenzo Pieralisi wrote:
On Mon, Aug 08, 2016 at 05:48:28PM +0100, Mark Rutland wrote:
Hi,
[adding Lorenzo]
On Mon, Aug 08, 2016 at 12:03:38PM -0400, Chris Metcalf wrote:
When doing an nmi backtrace of many cores, most of which are idle,
the output is a little overwhelmin
Jason Cooper writes:
> Perhaps a /dev/hwrng[0-9] per rng? That would lend itself nicely to a
> sysfs interface for per device quality, rate, and enabled attributes.
> e.g. /sys/class/hw_random/hwrng0/{device/,quality,rate,enabled}
I was interested in the data being provided for /dev/random; tha
Capitalize R in RIP.
Signed-off-by: Prarit Bhargava
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: "H. Peter Anvin"
Cc: x...@kernel.org
Cc: Andy Lutomirski
Cc: Borislav Petkov
Cc: Andrew Morton
Cc: Ard Biesheuvel
Cc: Tony Luck
---
arch/x86/mm/extable.c |2 +-
1 file changed, 1 insertion(+),
> > that does not io port resource allocated from BIOS, and kernel can
not
> > assign one as io port shortage.
> >
> > The driver is only looking for MEM, and should not fail.
>
> > It turns out megasas_init_fw() etc are using bar index as mask.
> > index 1 is used as mask 1, so that pci_request_s
On 08/08/2016 01:29 PM, Peter Zijlstra wrote:
On Mon, Jul 18, 2016 at 04:39:25PM -0400, Waiman Long wrote:
Ding Tianhong reported a live-lock situation where a constant stream
of incoming optimistic spinners blocked a task in the wait list from
getting the mutex.
This patch attempts to fix this
On 08/09/2016 10:09 AM, Julia Lawall wrote:
> The b53_io_ops structures are never modified, so declare them as const.
>
> Done with the help of Coccinelle.
>
> Signed-off-by: Julia Lawall
Acked-by: Florian Fainelli
--
Florian
On Thu 04 Aug 02:21 PDT 2016, Lee Jones wrote:
> There is little point wasting CPU cycles completing integrity checking
> (i.e. ensuring nothing has changed) on the resource table if we *know*
> that it will be changed (by us). In this patch we skip resource table
> integrity checks if a platform
On Tue, 2016-08-09 at 19:01 +0200, Geert Uytterhoeven wrote:
> On Fri, Jun 24, 2016 at 5:46 AM, Joe Perches wrote:
> > Using functions instead of macros can reduce overall code size
> > by eliminating unnecessary "KERN_SOH" prefixes from
> > format strings.
> This change, commit 874f9c7da9a4acbc1
On 08/08/2016 01:26 PM, Peter Zijlstra wrote:
On Mon, Jul 18, 2016 at 04:39:24PM -0400, Waiman Long wrote:
@@ -302,22 +306,42 @@ static inline bool mutex_try_to_acquire(struct mutex
*lock)
*
* Returns true when the lock was taken, otherwise false, indicating
* that we need to jump to t
On Thu 04 Aug 02:21 PDT 2016, Lee Jones wrote:
> These types of error prints are superfluous. The system will
> pick up on OOM issues and let the user know.
>
> Signed-off-by: Lee Jones
Acked-by: Bjorn Andersson
Although, I think we should drop the "mapping" object. We have all the
informati
On Tue, Aug 09, 2016 at 04:18:52PM +0200, Philipp Zabel wrote:
> Since IRQCHIP_DECLARE now flags the GPC node as already populated, the
> GPC power domain driver is never probed unless we clear the flag again.
>
> Fixes: 15cc2ed6dcf9 ("of/irq: Mark initialised interrupt controllers as
> populated
On Tue, Jul 19, 2016 at 10:52:12PM +0200, SF Markus Elfring wrote:
> From: Markus Elfring
> Date: Tue, 19 Jul 2016 22:42:22 +0200
>
> The of_node_put() function tests whether its argument is NULL
> and then returns immediately.
> Thus the test around the call is not needed.
>
> This issue was de
Hi,
I just experienced network hangup with 4.7.0, it happened shortly
after resume from hibernate:
[201988.443552] INFO: rcu_preempt detected stalls on CPUs/tasks:
[201988.443556] Tasks blocked on level-0 rcu_node (CPUs 0-3): P14563
[201988.443557] (detected by 3, t=18002 jiffies,
On Thu 04 Aug 02:21 PDT 2016, Lee Jones wrote:
> Trivial patch to clean up a couple of minor misgivings.
>
> Signed-off-by: Lee Jones
Acked-by: Bjorn Andersson
Although as I hope to stack this series ontop of the auto-boot there
will be some minor conflicts here.
Regards,
Bjorn
> ---
> dri
On 08/08/2016 11:56 PM, Borislav Petkov wrote:
> On Tue, Aug 09, 2016 at 05:06:39AM +, york sun wrote:
>> It is uncorrectable. DDR controller can only report the error. I don't
>> believe EDAC driver can do more. For the same reason I said we can leave
>> RXFE as is, even for e500v1 case (with
The kernel key service is a generic way to store keys for the use of
other subsystems. Currently there is no way to use kernel keys in dm-crypt.
This patch aims to fix that. Instead of key userspace may pass a key
description with preceding ':'. So message that constructs encryption
mapping now loo
On Tue, 9 Aug 2016, Florian Fainelli wrote:
> On 08/09/2016 09:58 AM, Julia Lawall wrote:
> > The xfrm_replay structures are never modified, so declare them as const.
>
> You mean b53_io_ops here, right?
Oops. I sent a v2.
julia
> Other than that LTGM, but this will
> have to wait for "net"n
On Thu 04 Aug 02:21 PDT 2016, Lee Jones wrote:
> Before this patch, the dma_alloc_coherent() failure path printed out:
>
> "dma_alloc_coherent err: 16760832"
>
> ... alluding to the Linux error code being 16760832, but seeing as
> Linux error codes are all negative, this looks like a signed/un
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