From: Andi Kleen
For some events it's useful to weight sample with a hardware
provided number. This expresses how expensive the action the
sample represent was. This allows the profiler to scale
the samples to be more informative to the programmer.
There is already the period which is used
From: Andi Kleen
This is not arch perfmon, but older CPUs will just ignore it. This makes
it possible to do at least some TSX measurements from a KVM guest
Cc: a...@redhat.com
Signed-off-by: Andi Kleen
---
arch/x86/kvm/pmu.c | 13 ++---
1 files changed, 10 insertions(+), 3
This adds perf PMU support for the upcoming Haswell core. The patchkit
is fairly large, mainly due to various enhancement for TSX. TSX tuning
relies heavily on the PMU, so I tried hard to make all facilities
easily available. In addition it also has some other enhancements.
This includes
From: Andi Kleen
Make perf report -j aware of the new intx,notx,abort branch qualifiers.
Signed-off-by: Andi Kleen
---
tools/perf/builtin-record.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index
From: Andi Kleen
Add support for reporting PEBS records in a raw format that can
be then parsed by perf script.
We exposed most of the Haswell PEBS fields in a generic way
in this patchkit:
- Aborted cycles is in weight
- Memory latency is in weight
- DataLA is in address
- EventingRIP is used
From: Andi Kleen
When a weighted sample is requested, first try to report the TSX abort cost
on Haswell. If that is not available report the memory latency. This
allows profiling both by abort cost and by memory latencies.
Memory latencies requires enabling a different PEBS mode (LL).
When both
From: Andi Kleen
Add a precise qualifier, like cpu/event=0x3c,precise=1/
This is needed so that the kernel can request enabling PEBS
for TSX events. The parser bails out on any sysfs parse errors,
so this is needed in any case to handle any event on the TSX
perf kernel.
Signed-off-by: Andi
From: Andi Kleen
In the PEBS handler report the transaction flags using the new
generic transaction flags facility. Most of them come from
the "tsx_tuning" field in PEBSv2, but the abort code is derived
from the RAX register reported in the PEBS record.
Signed-off-by: Andi Kleen
---
From: Andi Kleen
When the LBR format is unknown disable LBR recording. This prevents
crashes when the LBR address is misdecoded and mis-sign extended.
Signed-off-by: Andi Kleen
---
arch/x86/kernel/cpu/perf_event_intel_lbr.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff
From: Andi Kleen
Add LBR filtering for branch in transaction, branch not in transaction
or transaction abort. This is exposed as new sample types.
Signed-off-by: Andi Kleen
---
arch/x86/kernel/cpu/perf_event_intel_lbr.c | 31 +--
include/linux/perf_event.h
From: Andi Kleen
With checkpointed counters there can be a situation where the counter
is overflowing, aborts the transaction, is set back to a non overflowing
checkpoint, causes interupt. The interrupt doesn't see the overflow
because it has been checkpointed. This is then a spurious PMI,
From: Andi Kleen
Implement the TSX transaction and checkpointed transaction qualifiers for
Haswell. This allows e.g. to profile the number of cycles in transactions.
The checkpointed qualifier requires forcing the event to
counter 2, implement this with a custom constraint for Haswell.
Also
From: Andi Kleen
- looks nicer than _, so allow - in the event names. Used for various
of the arch perfmon and Haswell events.
Signed-off-by: Andi Kleen
---
tools/perf/util/parse-events.l |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/parse-events.l
From: Andi Kleen
perf record has a new option -W that enables weightened sampling.
Add sorting support in top/report for the average weight per sample and the
total weight sum. This allows to both compare relative cost per event
and the total cost over the measurement period.
Add the necessary
From: Andi Kleen
Add the glue in the user tools to record transaction flags with
--transaction (-T was already taken) and dump them.
Followon patches will use them.
Signed-off-by: Andi Kleen
---
tools/perf/Documentation/perf-record.txt |5 -
tools/perf/builtin-record.c |
From: Andi Kleen
Extend the perf branch sorting code to support sorting by intx
or abort qualifiers. Also print out those qualifiers.
Signed-off-by: Andi Kleen
---
tools/perf/builtin-report.c |3 +-
tools/perf/builtin-top.c|4 ++-
tools/perf/perf.h |4 ++-
From: Andi Kleen
The --sort documentation for top and report was hopelessly out-of-date
Instead of having two more places that would need to be updated,
just point to --help.
Signed-off-by: Andi Kleen
---
tools/perf/Documentation/perf-report.txt |2 +-
From: Andi Kleen
Add a instructions-p event alias that uses the PDIR randomized instruction
retirement event. This is useful to avoid some systematic sampling shadow
problems. Normally PEBS sampling has a systematic shadow. With PDIR
enabled the hardware adds some randomization that
From: Andi Kleen
Add histogram support for the transaction flags. Each flags instance becomes
a separate histogram. Support sorting and displaying the flags in report
and top.
The patch is fairly large, but it's really mostly just plumbing to pass the
flags around.
Signed-off-by: Andi Kleen
From: Andi Kleen
Report all the supported arch perfmon events as event aliases in
/sys/devices/cpu/...
This is needed to use the TSX intx,intx_cp attributes with
symbolic events, at least for these basic events.
Currently cpu/instructions/ doesn't work because instructions
is also a generic
> on x86_64:
>
> drivers/built-in.o: In function `ipoib_changelink':
> ipoib_netlink.c:(.text+0x6a5fc9): undefined reference to `ipoib_set_mode'
> ipoib_netlink.c:(.text+0x6a5fe3): undefined reference to `ipoib_set_mode'
Happens on powerpc too with ppc64e_defconfig compiling modules.
Reverting
From: Andi Kleen
I had some problems with spurious PMIs, so print the PMU state
on a spurious one. This will not interact well with other NMI users.
Disabled by default, has to be explicitely enabled through sysfs.
Optional, but useful for debugging.
v2: Move to /sys/devices/cpu
Signed-off-by:
From: Andi Kleen
The callers of parse_events usually have their own error handling.
Move the fprintf for a bad event to parse_events_options, which
is the only one who should need it.
Signed-off-by: Andi Kleen
---
tools/perf/util/parse-events.c | 10 +++---
1 files changed, 7
From: Andi Kleen
Add infrastructure to generate event aliases in /sys/devices/cpu/events/
And use this to set up user friendly aliases for the common TSX events.
TSX tuning relies heavily on the PMU, so it's important to be user friendly.
This replaces the generic transaction events in an
From: Andi Kleen
So that the browser still shows the abort label
Signed-off-by: Andi Kleen
---
tools/perf/util/annotate.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index f0a9103..a34a1ae 100644
---
From: Andi Kleen
Add a generic qualifier for transaction events, as a new sample
type that returns a flag word. This is particularly useful
for qualifying aborts: to distinguish aborts which happen
due to asynchronous events (like conflicts caused by another
CPU) versus instructions that lead to
From: Andi Kleen
Add support to perf stat to print the basic transactional execution statistics:
Total cycles, Cycles in Transaction, Cycles in aborted transsactions
using the intx and intx_checkpoint qualifiers.
Transaction Starts and Elision Starts, to compute the average transaction
length.
From: Andi Kleen
Add basic PEBS support for Haswell.
The constraints are similar to SandyBridge with a few new events.
Signed-off-by: Andi Kleen
---
arch/x86/kernel/cpu/perf_event.h |2 ++
arch/x86/kernel/cpu/perf_event_intel.c|2 +-
From: Andi Kleen
Add support for the v2 PEBS format. It has a superset of the v1 PEBS
fields, but has a longer record so we need to adjust the code paths.
The main advantage is the new "EventingRip" support which directly
gives the instruction, not off-by-one instruction. So with precise == 2
On Tue, 2 Oct 2012, Paul E. McKenney wrote:
> Indeed. Slab seems to be doing an rcu_barrier() in a CPU hotplug
> notifier, which doesn't sit so well with rcu_barrier() trying to exclude
> CPU hotplug events. I could go back to the old approach, but it is
> significantly more complex. I
On Tue, Oct 02, 2012 at 11:58:36PM +0200, Jiri Kosina wrote:
> On Tue, 2 Oct 2012, Jiri Kosina wrote:
>
> > > > > 1331e7a1bbe1f11b19c4327ba0853bee2a606543 is the first bad commit
> > > > > commit 1331e7a1bbe1f11b19c4327ba0853bee2a606543
> > > > > Author: Paul E. McKenney
> > > > > Date: Thu
On 10/02/2012 03:28 PM, Robert Nelson wrote:
> On Tue, Oct 2, 2012 at 5:24 PM, Tim Bird wrote:
>> This is an early report - I'm just checking if anyone else has seen this.
>>
>> With Linux version v3.6, my PandaBoard (OMAP-based) no longer boots. The
>> system appears to fail to initialize the
Hi Linus,
Please pull from the git repository at
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
pm-for-3.7-rc1
to receive power management updates for v3.7-rc1 with top-most commit
b9142167a2bb979b58b98ffcd928a311b55cbd9f
Merge branch 'pm-qos'
on top of commit
On Tue, Oct 02, 2012 at 06:27:41PM -0400, David Miller wrote:
>
> Invalidation sequences are handled in various ways on various
> architectures.
>
> One way, which sparc64 uses, is to let the set_*_at() functions
> accumulate pending flushes into a per-cpu array. Then the
> flush_tlb_range() et
On Tue, 02 Oct 2012 18:26:01 -0400 (EDT)
David Miller wrote:
> Here is a set of patches that add THP support for sparc64.
>
> A few of them are relatively minor portability issues I ran into.
> Like the MIPS guys I hit the update_mmu_cache() typing issue so I have
> a patch for that here.
>
>
Hi Andrew,
On Tue, Oct 02, 2012 at 03:31:48PM -0700, Andrew Morton wrote:
> From reading the code, it appears that we initially allocate a huge
> page and point the pmd at that. If/when there is a write fault against
> that page we then populate the mm with ptes which point at the normal
> 4k
On Oct 2, 2012, at 5:17 PM, Andrew Morton wrote:
...
>> The static arrangement is still available with aoe_dyndevs=0, and
>> the aoe-stat tool from the userland aoetools package, the user
>> space counterpart to the aoe driver, recognizes the case where
>> there is a mismatch between the minor
Hi Dave,
On Tue, Oct 02, 2012 at 06:27:18PM -0400, David Miller wrote:
>
> The code currently assumes that pgtable_t is a struct page pointer.
>
> Fix this by pushing pgtable management behind arch helper functions.
This should be fixed in -mm already, it's from the s390x support.
--
To
On 10/02/2012 01:45 AM, Mel Gorman wrote:
SIZE=64
taskset -c 0 netserver
taskset -c 1 netperf -t UDP_STREAM -i 50,6 -I 99,1 -l 20 -H 127.0.0.1 -- -P
15895 -s 32768 -S 32768 -m $SIZE -M $SIZE
Just FYI, unless you are running a hacked version of netperf, the "50"
in "-i 50,6" will be silently
On Tue, Oct 2, 2012 at 3:23 PM, Greg KH wrote:
>
> which went into udev release 187 which I think corresponds to the place
> when people started having problems, right Mauro?
According to what I've seen, people started complaining in 182, not 187.
See for example
On Tue, 2 Oct 2012 15:10:56 -0700
Kees Cook wrote:
> >> Has there been any more progress on this patch over-all?
> >
> > No progress.
>
> Al, Andrew, anyone? Thoughts on this?
> (First email is https://lkml.org/lkml/2012/8/14/448)
Wasn't cc'ed, missed it.
The patch looks straightforward
On 10/02/2012 12:39 AM, NeilBrown wrote:
On Fri, 28 Sep 2012 23:16:30 -0400 John Stultz wrote:
After Kernel Summit and Plumbers, I wanted to consider all the various
side-discussions and try to summarize my current thoughts here along
with sending out my current implementation for review.
On Tue, Oct 2, 2012 at 2:03 PM, Ivan Kalvachev wrote:
>
> I'm not kernel developer and probably my opinion would be a little
> naive, but here it is.
>
> Please, make the kernel load firmware from the filesystem on its own.
We probably should do that, not just for firmware, but for modules
too.
> "Kent" == Kent Overstreet writes:
>> Hmm, careful here. I think that in DIF/DIX the checksums are
>> per-sector, not per IO, right? That'd mean that the PAGE_SIZE attr
>> limit in this patch would be magically creating different max IO size
>> limits on different architectures. That
On Tue, 2 Oct 2012 18:19:22 +0300
"Kirill A. Shutemov" wrote:
> During testing I noticed big (up to 2.5 times) memory consumption overhead
> on some workloads (e.g. ft.A from NPB) if THP is enabled.
>
> The main reason for that big difference is lacking zero page in THP case.
> We have to
On 03.10.2012, at 00:17, Nishanth Aravamudan wrote:
> On 02.10.2012 [23:47:39 +0200], Alexander Graf wrote:
>>
>> On 02.10.2012, at 23:43, Nishanth Aravamudan wrote:
>>
>>> Hi Ben,
>>>
>>> On 02.10.2012 [10:58:29 +1000], Benjamin Herrenschmidt wrote:
On Mon, 2012-10-01 at 16:03 +0200,
> "Kent" == Kent Overstreet writes:
>> > + *bp->bip1.bip_vec = bip->bip_vec[0];
>> > + *bp->bip2.bip_vec = bip->bip_vec[0];
>>
>> I think this is horrible.
Yep.
>> Why not introduce bvec pointer in bip (like bio), to cover the case
>> when bvec are not inline.
Kent> That's... exactly
On Tue, Oct 2, 2012 at 5:24 PM, Tim Bird wrote:
> This is an early report - I'm just checking if anyone else has seen this.
>
> With Linux version v3.6, my PandaBoard (OMAP-based) no longer boots. The
> system appears to fail to initialize the mmc controller.
>
> The kernel log message of
This is relatively easy since PMD's now cover exactly 4MB of memory.
Our PMD entries are 32-bits each, so we use a special encoding. The
lowest bit, PMD_ISHUGE, determines the interpreation. This is
possible because sparc64's page tables are purely software entities so
we can use whatever
Invalidation sequences are handled in various ways on various
architectures.
One way, which sparc64 uses, is to let the set_*_at() functions
accumulate pending flushes into a per-cpu array. Then the
flush_tlb_range() et al. calls process the pending TLB flushes.
In this regime, the
The code currently assumes that pgtable_t is a struct page pointer.
Fix this by pushing pgtable management behind arch helper functions.
Signed-off-by: David S. Miller
---
arch/x86/include/asm/pgalloc.h | 26 ++
mm/huge_memory.c | 22
The transparent huge page code passes a PMD in as the third
argument of update_mmu_cache(), which expects a PTE pointer.
This never got noticed because X86 implements update_mmu_cache() as a
macro and thus we don't get any type checking, and X86 is the only
architecture which supports
We're going to be messing around with the PMD interpretation and
layout for the sake of transparent huge pages, so we better clearly
document what we're starting with.
Signed-off-by: David S. Miller
---
arch/sparc/include/asm/pgtable_64.h | 16
arch/sparc/include/asm/tsb.h
We've split up the PTE tables so that they take up half a page instead
of a full page. This is in order to facilitate transparent huge page
support, which works much better if our PMDs cover 4MB instead of 8MB.
What we do is have a one-behind cache for PTE table allocations in the
mm struct.
The reason we want to do this is to facilitate transparent huge page
support.
Right now PMD's cover 8MB of address space, and our huge page size is
4MB. The current transparent hugepage support is not able to handle
HPAGE_SIZE != PMD_SIZE.
So make PTE tables be sized to half of a page instead
Narrowing the scope of huge page support will make the transparent
hugepage changes much simpler.
In the end what we really want to do is have the kernel support
multiple huge page sizes and use whatever is appropriate as the
context dictactes.
Signed-off-by: David S. Miller
---
Here is a set of patches that add THP support for sparc64.
A few of them are relatively minor portability issues I ran into.
Like the MIPS guys I hit the update_mmu_cache() typing issue so I have
a patch for that here.
It is very likely that I need the ACCESSED bit handling fix the
ARM folks
On Tue, Oct 02, 2012 at 03:12:39PM -0700, Greg KH wrote:
> On Tue, Oct 02, 2012 at 09:33:03AM -0700, Linus Torvalds wrote:
> > I don't know where the problem started in udev, but the report I saw
> > was that udev175 was fine, and udev182 was broken, and would deadlock
> > if module_init() did a
> "Li" == Li Zhong writes:
Li> As suggested by James: this patch tries to short the path length of
Li> scsi_cmd_to_driver(). As only REQ_TYPE_BLOCK_PC commands can be
Li> submitted without a driver, so we could avoid the related NULL
Li> checking, as long as we make sure we don't use it for
This is an early report - I'm just checking if anyone else has seen this.
With Linux version v3.6, my PandaBoard (OMAP-based) no longer boots. The
system appears to fail to initialize the mmc controller.
The kernel log message of interest appears to be this:
[1.690002] omap_hsmmc
On 02.10.2012 [23:47:39 +0200], Alexander Graf wrote:
>
> On 02.10.2012, at 23:43, Nishanth Aravamudan wrote:
>
> > Hi Ben,
> >
> > On 02.10.2012 [10:58:29 +1000], Benjamin Herrenschmidt wrote:
> >> On Mon, 2012-10-01 at 16:03 +0200, Alexander Graf wrote:
> >>> Phew. Here we go :). It looks to
On Tue, Oct 02, 2012 at 06:05:53PM -0400, Vivek Goyal wrote:
> On Tue, Oct 02, 2012 at 01:52:50PM -0700, Kent Overstreet wrote:
> > On Tue, Oct 02, 2012 at 11:12:02AM -0400, Vivek Goyal wrote:
> > > On Mon, Sep 24, 2012 at 03:34:42PM -0700, Kent Overstreet wrote:
> > > > This adds a pointer to the
On Wed, 3 Oct 2012, Srivatsa S. Bhat wrote:
> I don't see how this circular locking dependency can occur.. If you are using
> SLUB,
> kmem_cache_destroy() releases slab_mutex before it calls rcu_barrier(). If
> you are
> using SLAB, kmem_cache_destroy() wraps its whole operation inside
>
From: Stephen Warren
Nothing from this file is used, and the file will hopefully be deleted
soon.
Signed-off-by: Stephen Warren
---
Joerg, if this patch can get into 3.7 (it's late, I know) then that
would be great. If not, may I please request an ack so I can take the
change through the Tegra
On Tue, Oct 02, 2012 at 09:33:03AM -0700, Linus Torvalds wrote:
> I don't know where the problem started in udev, but the report I saw
> was that udev175 was fine, and udev182 was broken, and would deadlock
> if module_init() did a request_firmware(). That kind of nested
> behavior is absolutely
On Tue, Oct 2, 2012 at 2:41 PM, Ard Biesheuvel wrote:
> 2012/10/2 Kees Cook :
>>> If desired, additional restrictions can be imposed by using the
>>> security framework, e.g,, disallow non-final r-x mappings.
>>
>> Interesting; what kind of interface did you have in mind?
>
> The 'interface' we
From: Guillaume Roguez
The ADS7830 device is almost the same as the ADS7828,
except that it does 8-bit sampling, instead of 12-bit.
This patch extends the ads7828 driver to support this chip.
Signed-off-by: Guillaume Roguez
Signed-off-by: Vivien Didelot
---
Documentation/hwmon/ads7828 | 12
* Remove module parameters, add a ads7828_platform_data;
* Move driver declaration to avoid adding function prototypes;
* Remove unused macros;
* Coding Style fixes.
Signed-off-by: Vivien Didelot
---
Documentation/hwmon/ads7828 | 31 +++--
drivers/hwmon/ads7828.c | 216
On Tue, Oct 02, 2012 at 05:58:45PM -0400, Vivek Goyal wrote:
> On Tue, Oct 02, 2012 at 02:01:43PM -0700, Kent Overstreet wrote:
> > I'm honestly not sure what your complaint about my bugfix patch was -
> > it's small and complete, it does fix the bug. I don't follow why you
> > think we need to
On Tue, Oct 02, 2012 at 01:52:50PM -0700, Kent Overstreet wrote:
> On Tue, Oct 02, 2012 at 11:12:02AM -0400, Vivek Goyal wrote:
> > On Mon, Sep 24, 2012 at 03:34:42PM -0700, Kent Overstreet wrote:
> > > This adds a pointer to the bvec array to struct bio_integrity_payload,
> > > instead of the
Hi,
there is currently a thread "kernel BUG at fs/buffer.c:3205 (stable 3.5.3)" on
this list.
I have reached the same BUG_ON(), but in an older kernel and with a different
environment, so maybe the following information is helpfull.
- Kernel is from openSUSE 12.2:
On Tue, Oct 02, 2012 at 02:00:06PM -0700, Kent Overstreet wrote:
> On Tue, Oct 02, 2012 at 11:37:37AM -0400, Vivek Goyal wrote:
> > On Mon, Sep 24, 2012 at 03:34:42PM -0700, Kent Overstreet wrote:
> >
> > [..]
> > > /**
> > > * bio_integrity_alloc - Allocate integrity payload and attach it to
On Tue, 2 Oct 2012 17:59:11 +0100
Will Deacon wrote:
> On x86 memory accesses to pages without the ACCESSED flag set result in the
> ACCESSED flag being set automatically. With the ARM architecture a page access
> fault is raised instead (and it will continue to be raised until the ACCESSED
>
On Tue, Oct 02, 2012 at 02:01:43PM -0700, Kent Overstreet wrote:
> On Tue, Oct 02, 2012 at 04:32:53PM -0400, Vivek Goyal wrote:
> > On Tue, Oct 02, 2012 at 01:26:43PM -0700, Kent Overstreet wrote:
> > > On Tue, Oct 02, 2012 at 10:08:47AM -0400, Vivek Goyal wrote:
> > > > On Mon, Oct 01, 2012 at
On Tue, 2 Oct 2012, Jiri Kosina wrote:
> > > > 1331e7a1bbe1f11b19c4327ba0853bee2a606543 is the first bad commit
> > > > commit 1331e7a1bbe1f11b19c4327ba0853bee2a606543
> > > > Author: Paul E. McKenney
> > > > Date: Thu Aug 2 17:43:50 2012 -0700
> > > >
> > > > rcu: Remove _rcu_barrier()
Geert Uytterhoeven wrote:
> xtensa-allmodconfig (hmm, this is not a new one, it felt through the
> cracks in -rc7 because of log line interleaving).
>
> Ugh, arch/xtensa/include/asm/regs.h defines way to generic symbols,
> like "MISC" (which causes the above breakage), and even a few
> 2-letter
On 10/02/2012 02:32 PM, T Makphaibulchoke wrote:
> Changing devmem_is_allowed so that on an EFI machine, access to physical
> address below 1 MB is allowed only to physical pages that are valid in
> the EFI memory map. This prevents the possibility of an MCE due to
> accessing an invalid physical
On Tue, 2 Oct 2012, Jiri Kosina wrote:
> > > 1331e7a1bbe1f11b19c4327ba0853bee2a606543 is the first bad commit
> > > commit 1331e7a1bbe1f11b19c4327ba0853bee2a606543
> > > Author: Paul E. McKenney
> > > Date: Thu Aug 2 17:43:50 2012 -0700
> > >
> > > rcu: Remove _rcu_barrier() dependency on
On 02.10.2012, at 23:43, Nishanth Aravamudan wrote:
> Hi Ben,
>
> On 02.10.2012 [10:58:29 +1000], Benjamin Herrenschmidt wrote:
>> On Mon, 2012-10-01 at 16:03 +0200, Alexander Graf wrote:
>>> Phew. Here we go :). It looks to be more of a PPC specific problem
>>> than it appeared as at first:
>>
Em Tue, Oct 02, 2012 at 03:10:49PM +0200, Jiri Olsa escreveu:
> On Tue, Oct 02, 2012 at 07:39:23AM -0400, Ben Guthro wrote:
> > Actually - I hadn't noticed these warnings before.
> > After installing libdw-dev - the perf build completed successfully.
> > Perhaps this should be fatal, rather than
Hi Ben,
On 02.10.2012 [10:58:29 +1000], Benjamin Herrenschmidt wrote:
> On Mon, 2012-10-01 at 16:03 +0200, Alexander Graf wrote:
> > Phew. Here we go :). It looks to be more of a PPC specific problem
> > than it appeared as at first:
>
> Ok, so I suspect the problem is the pushing down of the
On Tue, 2 Oct 2012 17:25:06 +0900
Yasuaki Ishimatsu wrote:
> remove_memory() offlines memory. And it is called by following two cases:
>
> 1. echo offline >/sys/devices/system/memory/memoryXX/state
> 2. hot remove a memory device
>
> In the 1st case, the memory block's state is changed and the
On Tue, Oct 02, 2012 at 10:43:23AM -0700, Zach Brown wrote:
> > The generic code wouldn't know about any user pointers inside
> > attributes, so it'd have to be downstream consumers. Hopefully there
> > won't be many attributes with user pointers in them (I don't expect
> > there to be), so we
2012/10/2 Kees Cook :
>> If desired, additional restrictions can be imposed by using the
>> security framework, e.g,, disallow non-final r-x mappings.
>
> Interesting; what kind of interface did you have in mind?
>
The 'interface' we use is a LSM .ko which registers handlers for
mmap() and
Quoting Kees Cook (keesc...@chromium.org):
> This config item has not carried much meaning for a while now and is
> almost always enabled by default. As agreed during the Linux kernel
> summit,
Didn't this suggestion first come up around 2007 or so? :)
> it should be removed. As a first step,
On Tue, 2012-10-02 at 13:27 -0700, Hugh Dickins wrote:
> On Tue, 2 Oct 2012, Shuah Khan wrote:
> > I started seeing the following null pointer dereference on
> > a linux-next sept 21 git and still seeing it on linux-next
> > Sep 27th git.
> >
> > Can be reproduced easily. I have been able to
Changing devmem_is_allowed so that on an EFI machine, access to physical
address below 1 MB is allowed only to physical pages that are valid in
the EFI memory map. This prevents the possibility of an MCE due to
accessing an invalid physical address.
Signed-off-by: T Makphaibulchoke
---
On Tue, Oct 2, 2012 at 9:32 PM, Geert Uytterhoeven wrote:
> Below is the list of build error/warning regressions/improvements in
> v3.6[1] compared to v3.5[2].
>
> To make this mail fit in the lkml limit, I deleted
> - 6008 lines about __mcount_loc on sparc64
>
> Summarized:
> - build errors:
On Tue, 2 Oct 2012, Paul E. McKenney wrote:
> > 1331e7a1bbe1f11b19c4327ba0853bee2a606543 is the first bad commit
> > commit 1331e7a1bbe1f11b19c4327ba0853bee2a606543
> > Author: Paul E. McKenney
> > Date: Thu Aug 2 17:43:50 2012 -0700
> >
> > rcu: Remove _rcu_barrier() dependency on
I am submitting version 4 of the PCI-Express Non-Transparent Bridge
patches for inclusion in 3.7. All outstanding issues from the RFC
process have been addressed.
version 1
http://thread.gmane.org/gmane.linux.kernel.pci/16443
Version 2 incorporates numerous clean-ups
A virtual ethernet device that uses the NTB transport API to send/receive data.
Signed-off-by: Jon Mason
---
drivers/net/Kconfig |4 +
drivers/net/Makefile |1 +
drivers/net/ntb_netdev.c | 407 ++
3 files changed, 412 insertions(+)
On Wed, Sep 12, 2012 at 02:45:51PM -0500, Omar Ramirez Luna wrote:
> Adapt driver to use DT if provided.
Hi Omar,
I'm interested in making use of the assert/deassert APIs you exposed in
this series on AM335x for the pruss hwmod which has one hardreset
line. I have the same situation where I need
On Tue, 02 Oct 2012 14:36:27 -0400 (EDT)
David Miller wrote:
> From: Randy Dunlap
> Date: Tue, 02 Oct 2012 11:31:51 -0700
>
> > on x86_64:
> >
> > drivers/net/vxlan.c: In function 'vxlan_xmit':
> > drivers/net/vxlan.c:725:2: error: implicit declaration of function
> > 'ip_select_ident'
> >
On Tue, 2012-10-02 at 17:10 -0400, Theodore Ts'o wrote:
> The patch series in question has already been dropped, since there
> were some other problems found and we decided it wasn't ready for this
> merge window.
>
> If you look at the latest linux-next branch, you'll see that those
> patches
From: Dave Jones
Date: Tue, 2 Oct 2012 17:13:20 -0400
> Asking for this option on x86 seems a bit pointless.
>
> Signed-off-by: Dave Jones
Acked-by: David S. Miller
Sorry, an oversight.
Thanks Dave.
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On Mon, 1 Oct 2012 19:05:15 -0700
Ed Cashin wrote:
> Because udev use is so widespread, making the old static mapping
> the default is too conservative, given the severe limitations it
> places on usable AoE addresses. Storage virtualization and
> larger shelves have made the old limitations
On Mon, 1 Oct 2012 19:01:15 -0700
Ed Cashin wrote:
> The old mapping between AoE target shelf and slot addresses and
> the block device minor number is retained as a
> backwards-compatible feature, with a new "aoe_dyndevs" module
> parameter available for enabling dynamic block device minor
>
On Mon, Sep 24, 2012 at 1:39 PM, Benjamin Segall wrote:
> blocked_load_avg ~= \sum_child
> child.runnable_avg_sum/child.runnable_avg_period * child.weight
>
> The thought was: So if all the children have hit zero runnable_avg_sum
> (or in the case of a child task, will when they wake up), then
>
Asking for this option on x86 seems a bit pointless.
Signed-off-by: Dave Jones
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 94f232f..957cc56 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -796,6 +796,7 @@ config CRYPTO_DES
config CRYPTO_DES_SPARC64
tristate "DES and Triple
On Mon, 1 Oct 2012 18:59:12 -0700
Ed Cashin wrote:
> The ATA over Ethernet protocol uses a major (shelf) and
> minor (slot) address to identify a particular storage target.
> These changes remove an artificial limitation the aoe driver
> imposes on the use of AoE addresses. For example, without
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