On 1/12/21 6:53 AM, Michal Hocko wrote:
> On Tue 12-01-21 15:41:02, David Hildenbrand wrote:
>> On 12.01.21 15:23, Michal Hocko wrote:
>>> On Tue 12-01-21 13:16:45, Michal Hocko wrote:
>>> [...]
Well, currently pool pages are not migrateable but you are right that
this is likely
On Mon, Jan 11, 2021 at 2:19 PM Lee Jones wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
> drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c: In function
> ‘dce_aux_transfer_raw’:
> drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c:579:7: warning:
> variable
Since this is going to be a really invasive change, and past
experience shows that mucking with Kconfigs will invariably raise a
number of broken corner cases, if there is support from
Mark/Takashi/Jaroslav on this idea, we should first test it in the SOF
tree so that we get a good test
On Tue, Jan 12, 2021 at 02:45:43PM -0500, Johannes Weiner wrote:
> On Tue, Jan 12, 2021 at 09:03:22AM -0800, Roman Gushchin wrote:
> > On Tue, Jan 12, 2021 at 11:30:11AM -0500, Johannes Weiner wrote:
> > > When a value is written to a cgroup's memory.high control file, the
> > > write() context
The following commit has been merged into the timers/urgent branch of tip:
Commit-ID: e3fab2f3de081e98c50b7b4ace1b040161d95310
Gitweb:
https://git.kernel.org/tip/e3fab2f3de081e98c50b7b4ace1b040161d95310
Author:Geert Uytterhoeven
AuthorDate:Mon, 11 Jan 2021 11:39:56 +01:00
On Tue, Jan 12, 2021 at 8:16 PM Nathan Chancellor
wrote:
>
> On Wed, Dec 30, 2020 at 04:40:40PM +0100, Arnd Bergmann wrote:
> > From: Arnd Bergmann
> >
> > clang cannt evaluate this function argument at compile time
> > when the function is not inlined, which leads to a link
> > time failure:
>
On Tue, Jan 12, 2021 at 04:46:40PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann
>
> When frame pointers are used instead of the ARM unwinder,
> and the kernel is built using clang with an external assembler
> and CONFIG_XIP_KERNEL, every file produces two warnings
> like:
>
>
On Tue, Jan 12, 2021 at 3:23 PM Souptick Joarder wrote:
>
> kernel test robot throws below warnings ->
>
> drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/vangogh_ppt.c:594:6:
> warning: no previous prototype for 'vangogh_clk_dpm_is_enabled'
> [-Wmissing-prototypes]
>
On 1/11/21 10:20 AM, Qais Yousef wrote:
Some subsystems only have bare tracepoints (a tracepoint with no
associated trace event) to avoid the problem of trace events being an
ABI that can't be changed.
From bpf presepective, bare tracepoints are what it calls
RAW_TRACEPOINT().
Since bpf
On Tue, Jan 12, 2021 at 1:48 PM Will Deacon wrote:
>
> > And then if somebody actually needs to pass in "modified fault state"
> > (ie that whole "I'm doing fault-around, so I'll use multiple
> > addresses") they'd never modify the address in the fault info, they'd
> > just pass the address as an
On 1/12/21 8:46 PM, Andrii Nakryiko wrote:
On Tue, Jan 12, 2021 at 1:14 AM Gilad Reti wrote:
Add support for pointer to mem register spilling, to allow the verifier
to track pointer to valid memory addresses. Such pointers are returned
for example by a successful call of the
On Tue, Jan 12, 2021 at 11:55 AM Johannes Weiner wrote:
>
> On Tue, Jan 12, 2021 at 10:59:58AM -0800, Shakeel Butt wrote:
> > On Tue, Jan 12, 2021 at 9:12 AM Johannes Weiner wrote:
> > >
> > > When a value is written to a cgroup's memory.high control file, the
> > > write() context first tries
From: Arnd Bergmann
Building ubsan kernels even for compile-testing introduced these
warnings in my randconfig environment:
crypto/blake2b_generic.c:98:13: error: stack frame size of 9636 bytes in
function 'blake2b_compress' [-Werror,-Wframe-larger-than=]
static void blake2b_compress(struct
On Tue, Jan 12, 2021 at 9:49 PM Yuri Benditovich
wrote:
>
> On Tue, Jan 12, 2021 at 9:41 PM Yuri Benditovich
> wrote:
> >
> > Existing TUN module is able to use provided "steering eBPF" to
> > calculate per-packet hash and derive the destination queue to
> > place the packet to. The eBPF uses
On 1/12/21 1:58 AM, a...@linux-foundation.org wrote:
> The mm-of-the-moment snapshot 2021-01-12-01-57 has been uploaded to
>
>https://www.ozlabs.org/~akpm/mmotm/
>
> mmotm-readme.txt says
>
> README for mm-of-the-moment:
>
> https://www.ozlabs.org/~akpm/mmotm/
>
> This is a snapshot of my
> On Jan 12, 2021, at 11:56 AM, Yu Zhao wrote:
>
> On Tue, Jan 12, 2021 at 11:15:43AM -0800, Nadav Amit wrote:
>>> On Jan 12, 2021, at 11:02 AM, Laurent Dufour
>>> wrote:
>>>
>>> Le 12/01/2021 à 17:57, Peter Zijlstra a écrit :
On Tue, Jan 12, 2021 at 04:47:17PM +0100, Laurent Dufour
From: Arnd Bergmann
The Kconfig logic around SND_SOC_SOF_INTEL_SOUNDWIRE tries to
ensure that all sound modules can be built with the minimal
dependencies, but this fails in some configurations:
x86_64-linux-ld: sound/hda/intel-dsp-config.o: in function
`snd_intel_dsp_driver_probe':
The following commit has been merged into the irq/urgent branch of tip:
Commit-ID: 4bae052dde14c5538eca39592777b1d1987234ba
Gitweb:
https://git.kernel.org/tip/4bae052dde14c5538eca39592777b1d1987234ba
Author:Thomas Gleixner
AuthorDate:Tue, 12 Jan 2021 21:23:55 +01:00
From: Arnd Bergmann
The sof-pci-dev driver fails to link when built into the kernel
and CONFIG_SND_INTEL_DSP_CONFIG is set to =m:
arm-linux-gnueabi-ld: sound/soc/sof/sof-pci-dev.o: in function `sof_pci_probe':
sof-pci-dev.c:(.text+0x1c): undefined reference to `snd_intel_dsp_driver_probe'
All
On Tue, Jan 12, 2021 at 12:57 AM Robin Murphy wrote:
>
> On 2021-01-07 13:03, Will Deacon wrote:
> > On Thu, Jan 07, 2021 at 03:03:40PM +0530, Ajay Kumar wrote:
> >> When PCI function drivers(ex:pci-endpoint-test) are probed for already
> >> initialized PCIe-RC(Root Complex), and PCIe-RC is
On Tue, Jan 12, 2021 at 9:46 PM Alexei Starovoitov
wrote:
>
> On Tue, Jan 12, 2021 at 11:42 AM Yuri Benditovich
> wrote:
> >
> > This program type can set skb hash value. It will be useful
> > when the tun will support hash reporting feature if virtio-net.
> >
> > Signed-off-by: Yuri Benditovich
On Tue, Jan 12, 2021 at 9:17 PM Pierre-Louis Bossart
wrote:
>
>
> >> Since this is going to be a really invasive change, and past
> >> experience shows that mucking with Kconfigs will invariably raise a
> >> number of broken corner cases, if there is support from
> >> Mark/Takashi/Jaroslav on
On Tue, Jan 12, 2021 at 12:40:58PM -0700, Nathan Chancellor wrote:
> On Tue, Jan 12, 2021 at 11:20:27AM -0800, syzbot wrote:
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit:e609571b Merge tag 'nfs-for-5.11-2' of git://git.linux-nfs..
> > git tree: upstream
>
On Tue, Jan 12, 2021 at 1:37 PM Nathan Chancellor
wrote:
>
> > if real_ptr is an unsigned long, do we want to use `__ffs(real_ptr) +
> > 1` here rather than ffs which takes an int? It seems the kernel is
> > missing a definition of ffsl. :(
>
> Why the + 1? I think if we use __ffs (which it
On Mon, 11 Jan 2021 19:29:28 +0100, AngeloGioacchino Del Regno wrote:
> Add bindings for the Awinic AW9523/AW9523B I2C GPIO Expander driver.
>
> Signed-off-by: AngeloGioacchino Del Regno
>
> ---
> .../pinctrl/awinic,aw9523-pinctrl.yaml| 112 ++
> 1 file changed, 112
I'm just going to combine my response to the 2-3 emails in this one response.
On Tue, Jan 12, 2021 at 9:57 AM Thierry Reding wrote:
>
> On Mon, Jan 11, 2021 at 05:57:17PM +0100, Rafael J. Wysocki wrote:
> > On Mon, Jan 11, 2021 at 5:12 PM Thierry Reding wrote:
> > >
> > > On Mon, Jan 11, 2021
Hello:
This patch was applied to bpf/bpf-next.git (refs/heads/master):
On Tue, 12 Jan 2021 12:34:22 + you wrote:
> When the buffer is too small to contain the input string, these
> helpers return the length of the buffer, not the length of the
> original string. This tries to make the docs
On Tue, Jan 12, 2021 at 1:44 AM David Hildenbrand wrote:
>
> On 12.01.21 10:18, Dan Williams wrote:
> > On Thu, Jan 7, 2021 at 1:16 AM David Hildenbrand wrote:
> >>
> >> [...]
> >>
> > Well, I would love to have no surprises either. So far there was not
> > actual argument why the pmem
On Tue, Jan 12, 2021 at 7:28 PM Ray Jui wrote:
> On 2020-12-15 7:49 a.m., Arnd Bergmann wrote:
> > On Tue, Dec 15, 2020 at 4:41 PM Florian Fainelli
> > wrote:
> >>
> >> On 12/15/2020 5:19 AM, Bharat Gooty wrote:
> >>> Since the IOMMU is disabled and DMA engine is on 32-bit bus, We can not
> >>>
On Tue, Jan 12, 2021 at 10:57:07AM -0800, Andy Lutomirski wrote:
> On Tue, Jan 12, 2021 at 10:24 AM Luck, Tony wrote:
> >
> > On Tue, Jan 12, 2021 at 09:21:21AM -0800, Andy Lutomirski wrote:
> > > Well, we need to do *something* when the first __get_user() trips the
> > > #MC. It would be nice
On Tue, Jan 12, 2021 at 11:21 AM Ben Widawsky wrote:
>
> On 21-01-12 19:13:42, Jonathan Cameron wrote:
> > On Mon, 11 Jan 2021 14:51:09 -0800
> > Ben Widawsky wrote:
> >
> > > All the necessary bits are initialized in order to find and map the
> > > register space for CXL Memory Devices. This is
Hi all,
In commit
95e9295daa84 ("media: Revert "media: videobuf2: Fix length check for single
plane dmabuf queueing"")
Fixes tag
Fixes: 961d3b27 ("media: videobuf2: Fix length check for single plane dmabuf
queueing")
has these problem(s):
- SHA1 should be at least 12 digits long
On Tue, Jan 12, 2021 at 9:42 PM Yuri Benditovich
wrote:
>
> This program type can set skb hash value. It will be useful
> when the tun will support hash reporting feature if virtio-net.
>
> Signed-off-by: Yuri Benditovich
> ---
> drivers/net/tun.c | 2 ++
> 1 file changed, 2 insertions(+)
>
>
On Tue, 12 Jan 2021 at 21:32, Nathan Chancellor
wrote:
>
> On Tue, Jan 12, 2021 at 12:40:58PM -0700, Nathan Chancellor wrote:
> > On Tue, Jan 12, 2021 at 11:20:27AM -0800, syzbot wrote:
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > HEAD commit:e609571b Merge tag
On Tue, Jan 12, 2021 at 2:05 PM Frank Rowand wrote:
>
> On 1/12/21 1:41 PM, Rob Herring wrote:
> > On Tue, Jan 12, 2021 at 1:06 PM Frank Rowand wrote:
> >>
> >> On 1/12/21 8:04 AM, Rob Herring wrote:
> >>> On Mon, Jan 11, 2021 at 4:06 PM Frank Rowand
> >>> wrote:
>
> On 1/8/21 2:41
On Tue, Jan 12, 2021 at 12:09:21PM -0700, Nathan Chancellor wrote:
> On Tue, Jan 12, 2021 at 06:48:48PM +, Mark Brown wrote:
> > This is a random warning fix, why would you expect it to be sent as a
> > bug fix? This is the first indication I've seen that anyone is seeing
> > it in mainline,
On Tue, Jan 12, 2021 at 12:38:34PM -0800, Nadav Amit wrote:
> > On Jan 12, 2021, at 11:56 AM, Yu Zhao wrote:
> >
> > On Tue, Jan 12, 2021 at 11:15:43AM -0800, Nadav Amit wrote:
> >>> On Jan 12, 2021, at 11:02 AM, Laurent Dufour
> >>> wrote:
> >>>
> >>> Le 12/01/2021 à 17:57, Peter Zijlstra a
Hello:
This patch was applied to bpf/bpf-next.git (refs/heads/master):
On Tue, 12 Jan 2021 12:39:13 + you wrote:
> The error message here is misleading, the argument will be rejected
> unless it is a known constant.
>
> Signed-off-by: Brendan Jackman
> ---
> kernel/bpf/verifier.c | 2 +-
>
On Mon, Jan 11, 2021 at 11:11 PM Marek Szyprowski
wrote:
>
> On 11.01.2021 22:47, Saravana Kannan wrote:
> > On Mon, Jan 11, 2021 at 6:18 AM Marek Szyprowski
> > wrote:
> >> On 11.01.2021 12:12, Marek Szyprowski wrote:
> >>> On 18.12.2020 04:17, Saravana Kannan wrote:
> Cyclic dependencies
On Tue, Jan 12, 2021 at 10:40 PM Yuri Benditovich
wrote:
>
> On Tue, Jan 12, 2021 at 9:42 PM Yuri Benditovich
> wrote:
> >
> > This program type can set skb hash value. It will be useful
> > when the tun will support hash reporting feature if virtio-net.
> >
> > Signed-off-by: Yuri Benditovich
Implement 'poll_put_char' and 'poll_get_char' callbacks in struct
'owl_uart_ops' that enables OWL UART to be used for kernel debugging
over serial line.
Signed-off-by: Cristian Ciocaltea
---
Changes in v3:
- Used 'readl_poll_timeout_atomic()' in 'owl_uart_poll_put_char()'
to get rid of
On 1/12/21 6:15 AM, Vitaly Kuznetsov wrote:
Wei Huang writes:
From: Bandan Das
While running VM related instructions (VMRUN/VMSAVE/VMLOAD), some AMD
CPUs check EAX against reserved memory regions (e.g. SMM memory on host)
before checking VMCB's instruction intercept. If EAX falls into
When building ARCH=mips 32r2el_defconfig with CONFIG_UBSAN_ALIGNMENT:
ld.lld: error: undefined symbol: __ubsan_handle_alignment_assumption
>>> referenced by slab.h:557 (include/linux/slab.h:557)
>>> main.o:(do_initcalls) in archive init/built-in.a
>>> referenced by slab.h:448
Hi Daniel,
On Tue, 12 Jan 2021 14:24:27 +0100 Daniel Vetter wrote:
>
> As Jason suggested, I've pulled the first 1 patches into a topic branch.
>
> Stephen, can you please add the below to linux-next for the 5.12 merge
> window?
>
> git://anongit.freedesktop.org/drm/drm
On 1/12/2021 12:40 PM, Arnd Bergmann wrote:
> On Tue, Jan 12, 2021 at 7:28 PM Ray Jui wrote:
>> On 2020-12-15 7:49 a.m., Arnd Bergmann wrote:
>>> On Tue, Dec 15, 2020 at 4:41 PM Florian Fainelli
>>> wrote:
On 12/15/2020 5:19 AM, Bharat Gooty wrote:
> Since the IOMMU is disabled
On Mon, Jan 11, 2021 at 1:38 PM Kirill Tkhai wrote:
>
> On 11.01.2021 21:17, Yang Shi wrote:
> > On Wed, Jan 6, 2021 at 2:22 AM Kirill Tkhai wrote:
> >>
> >> On 06.01.2021 01:58, Yang Shi wrote:
> >>> Currently registered shrinker is indicated by non-NULL
> >>> shrinker->nr_deferred.
> >>> This
Hi,
Please adjust the kernel-doc to be correct :)
On 1/12/21 8:11 AM, Liam R. Howlett wrote:
> Start using the maple tree to find VMA entries in an mm_struct.
>
> Signed-off-by: Liam R. Howlett
> ---
> mm/mmap.c | 29 +++--
> 1 file changed, 11 insertions(+), 18
On Tue, 12 Jan 2021 12:38:18 -0800 Randy Dunlap wrote:
> On 1/12/21 1:58 AM, a...@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2021-01-12-01-57 has been uploaded to
> >
> >https://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for
On Tue, Jan 12, 2021 at 11:46:24AM -0800, Nick Desaulniers wrote:
This:
> when building with LLVM_IAS=1 (Clang's integrated assembler). Josh
> notes:
> So basically, you can use an .L symbol *inside* a function or a code
> segment, you just can't use the .L symbol to contain the code using
On Mon, Jan 11, 2021 at 10:38:57AM +0100, Niklas Schnelle wrote:
> We use the UID of a zPCI adapter, or the UID of the function zero if
> there are multiple functions in an adapter, as PCI domain if and only if
> UID Checking is turned on.
> Otherwise we automatically generate domains as devices
Hi Li,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on block/for-next]
[also build test WARNING on v5.11-rc3 next-20210112]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base
On 1/12/21 2:32 PM, Arnd Bergmann wrote:
From: Arnd Bergmann
The Kconfig logic around SND_SOC_SOF_INTEL_SOUNDWIRE tries to
ensure that all sound modules can be built with the minimal
dependencies, but this fails in some configurations:
x86_64-linux-ld: sound/hda/intel-dsp-config.o: in
On Sun, Jan 10, 2021 at 7:06 AM Greg KH wrote:
>
> On Sat, Jan 09, 2021 at 01:49:42PM -0800, Dan Williams wrote:
> > On Sat, Jan 9, 2021 at 12:34 AM Greg KH wrote:
> > >
> > > On Sat, Jan 09, 2021 at 07:49:24AM +, Chen, Mike Ximing wrote:
> > > > > > +static int
Please see kernel-doc fixes below:
On 1/12/21 8:11 AM, Liam R. Howlett wrote:
> Change the implementation of find_vma_prev to use the new maple tree
> data structure.
>
> Signed-off-by: Liam R. Howlett
> ---
> mm/mmap.c | 27 +--
> 1 file changed, 17 insertions(+), 10
ng the rdev->mutex lock inside
> of regulator_resolve_supply() while checking and setting
> rdev->supply.
>
> Signed-off-by: David Collins
This patch landed in linux next-20210112 as commit eaa7995c529b
("regulator: core: avoid regulator_resolve_supply() race condition&qu
On 1/12/21 8:02 AM, Steven Rostedt wrote:
On Wed, 30 Dec 2020 14:04:23 +0800
Liu Peibao wrote:
Fix warning found by checkpatch.pl.
Signed-off-by: Liu Peibao
---
init/main.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/init/main.c b/init/main.c
index
Hi All,
Booting a 5.11-rc2 kernel with lockdep enabled inside a virtualbox vm (which
still
emulates good old piix ATA controllers) I get the below lockdep splat early on
during boot:
This seems to be led-class related but also seems to have a (P)ATA
part to it. To the best of my knowledge this
On Mon, Jan 11, 2021 at 11:25:37AM -0800, Linus Torvalds wrote:
> On Mon, Jan 11, 2021 at 6:24 AM Kirill A. Shutemov
> wrote:
> >
> > I wonder if it would be acceptable to pass down to faultaround a copy
> > of vmf, so it mess with it without risking to corrupt the original one?
>
> I'd almost
On 01/12, Sumera Priyadarsini wrote:
> This patchset aims to lay down some prep work before configfs can be
> implemented for the vkms driver. The first patch in the series adds a
> new type vkms_config to track device configuration. The second and third
> patch add module testing support for
On Thu, Jan 07, 2021 at 07:03:40PM -0500, Jarod Wilson wrote:
> On Fri, Dec 18, 2020 at 04:18:59PM -0800, Jay Vosburgh wrote:
> > Jarod Wilson wrote:
> >
> > >This comes from an end-user request, where they're running multiple VMs on
> > >hosts with bonded interfaces connected to some interest
On Tue, Jan 12, 2021 at 12:12:37PM -0800, Roman Gushchin wrote:
> On Tue, Jan 12, 2021 at 02:45:43PM -0500, Johannes Weiner wrote:
> > On Tue, Jan 12, 2021 at 09:03:22AM -0800, Roman Gushchin wrote:
> > > On Tue, Jan 12, 2021 at 11:30:11AM -0500, Johannes Weiner wrote:
> > > > When a value is
Hi--
On 1/12/21 8:11 AM, Liam R. Howlett wrote:
> Avoid allocating a new VMA when it is not necessary. Expand or contract
> the existing VMA instead. This avoids unnecessary tree manipulations
> and allocations.
>
> Once the VMA is known, use it directly when populating to avoid
> unnecessary
On Tue, Jan 12, 2021 at 12:55 PM Nathan Chancellor
wrote:
>
> When building ARCH=mips 32r2el_defconfig with CONFIG_UBSAN_ALIGNMENT:
>
> ld.lld: error: undefined symbol: __ubsan_handle_alignment_assumption
> >>> referenced by slab.h:557 (include/linux/slab.h:557)
> >>>
On Tue, Jan 12, 2021 at 3:32 PM Marco Elver wrote:
>
> > +/*
> > + * Unlike kasan_check_read/write(), kasan_check_byte() is performed even
> > for
> > + * the hardware tag-based mode that doesn't rely on compiler
> > instrumentation.
> > + */
>
> We have too many check-functions, and the name
Commit 9fd1ff5d2ac7 ("udp: Support UDP fraglist GRO/GSO.") actually
not only added a support for fraglisted UDP GRO, but also tweaked
some logics the way that non-fraglisted UDP GRO started to work for
forwarding too.
Tests showed that currently forwarding and NATing of plain UDP GRO
packets are
On Thu, 7 Jan 2021 17:28:57 +0800
Keqian Zhu wrote:
> Defer checking whether vfio_dma is of fully-dirty in update_user_bitmap
> is easy to lose dirty log. For example, after promoting pinned_scope of
> vfio_iommu, vfio_dma is not considered as fully-dirty, then we may lose
> dirty log that
On Mon, Jan 11, 2021 at 1:34 PM Kirill Tkhai wrote:
>
> On 11.01.2021 21:57, Yang Shi wrote:
> > On Mon, Jan 11, 2021 at 9:34 AM Kirill Tkhai wrote:
> >>
> >> On 11.01.2021 20:08, Yang Shi wrote:
> >>> On Wed, Jan 6, 2021 at 1:55 AM Kirill Tkhai wrote:
>
> On 06.01.2021 01:58, Yang
On 1/12/21 11:21 AM, Alex Elder wrote:
> The IPA driver depends on some SMEM functionality (qcom_smem_init(),
> qcom_smem_alloc(), and qcom_smem_virt_to_phys()), but this is not
> reflected in the configuration dependencies. Add a dependency on
> QCOM_SMEM to avoid attempts to build the IPA
On 1/11/21 5:12 PM, Tyrel Datwyler wrote:
> diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
> index b0b0212344f3..24e1278acfeb 100644
> --- a/drivers/scsi/ibmvscsi/ibmvfc.c
> +++ b/drivers/scsi/ibmvscsi/ibmvfc.c
> @@ -2418,18 +2418,79 @@ static struct ibmvfc_event
Ccing additional folks who work in this area.
On Tue, Jan 12, 2021 at 1:41 PM Shakeel Butt wrote:
>
> From: Arjun Roy
>
> TCP zerocopy receive is used by high performance network applications to
> further scale. For RX zerocopy, the memory containing the network data
> filled by network driver
On Mon, Jan 11, 2021 at 01:03:29PM -0800, Hugh Dickins wrote:
> On Mon, 11 Jan 2021, Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 11:34:08AM -0800, Linus Torvalds wrote:
> > > On Fri, Jan 8, 2021 at 9:15 AM Will Deacon wrote:
> > > >
> > > > The big difference in this version is that I have
> Subject: Re: [PATCH v2 0/3] hv_netvsc: Prevent packet loss during VF
> add/remove
>
> On Fri, 8 Jan 2021 16:53:40 -0800 Long Li wrote:
> > From: Long Li
> >
> > This patch set fixes issues with packet loss on VF add/remove.
>
> These patches are for net-next? They just optimize the amount of
On Tue, Jan 12, 2021 at 04:11:27PM -0500, Johannes Weiner wrote:
> On Tue, Jan 12, 2021 at 12:12:37PM -0800, Roman Gushchin wrote:
> > On Tue, Jan 12, 2021 at 02:45:43PM -0500, Johannes Weiner wrote:
> > > On Tue, Jan 12, 2021 at 09:03:22AM -0800, Roman Gushchin wrote:
> > > > On Tue, Jan 12, 2021
This series contains a few cleanups that didn't make it into previous
series, including some cosmetic changes and small bug fixes. The series
also lays the groundwork for a memslot modification test which stresses
the memslot update and page fault code paths in an attempt to expose races.
Tested:
In order to add an iteration -1 to indicate that the memory population
phase has not yet completed, convert the interations counters to ints.
No functional change intended.
Reviewed-by: Jacob Xu
Signed-off-by: Ben Gardon
---
.../selftests/kvm/dirty_log_perf_test.c | 26
On Sun, Jan 10, 2021 at 07:41:02PM +0100, Pavel Machek wrote:
> > >From our perspective (and Darrick and I discussed this on this week's
> > ext4 video conference, so it represents the ext4 and xfs maintainer's
> > position) is that the file system format is different. First, the
> > on-disk
Currently the population stage in the dirty_log_perf_test does nothing
as the per-vCPU iteration counters are not initialized and the loop does
not wait for each vCPU. Remedy those errors.
Reviewed-by: Jacob Xu
Reviewed-by: Makarand Sonare
Signed-off-by: Ben Gardon
---
On Tue, Jan 12, 2021 at 12:38:34PM -0800, Nadav Amit wrote:
> > On Jan 12, 2021, at 11:56 AM, Yu Zhao wrote:
> > On Tue, Jan 12, 2021 at 11:15:43AM -0800, Nadav Amit wrote:
> >> I will send an RFC soon for per-table deferred TLB flushes tracking.
> >> The basic idea is to save a generation in the
Add a memslot modification stress test in which a memslot is repeatedly
created and removed while vCPUs access memory in another memslot. Most
userspaces do not create or remove memslots on running VMs which makes
it hard to test races in adding and removing memslots without a
dedicated test.
On 1/7/21 4:33 AM, Vitaly Kuznetsov wrote:
> Sean Christopherson writes:
>
>> On Wed, Jan 06, 2021, Vitaly Kuznetsov wrote:
>>> Looking back, I don't quite understand why we wanted to account ticks
>>> between vmexit and exiting guest context as 'guest' in the first place;
>>> to my
Add an option to overlap the ranges of memory each vCPU accesses instead
of partitioning them. This option will increase the probability of
multiple vCPUs faulting on the same page at the same time, and causing
interesting races, if there are bugs in the page fault handler or
elsewhere in the
In response to some earlier comments from Peter Xu, rename
timespec_diff_now to the much more sensible timespec_elapsed.
No functional change intended.
Reviewed-by: Jacob Xu
Reviewed-by: Makarand Sonare
Signed-off-by: Ben Gardon
---
tools/testing/selftests/kvm/demand_paging_test.c | 8
Peter Xu pointed out that a log message printed while waiting for the
memory population phase of the dirty_log_perf_test will flood the debug
logs as there is no delay after printing the message. Since the message
does not provide much value anyway, remove it.
Reviewed-by: Jacob Xu
Note subject line tips at
https://lore.kernel.org/r/20171026223701.ga25...@bhelgaas-glaptop.roam.corp.google.com
On Tue, Jan 12, 2021 at 03:27:39PM +0800, mingchuang.q...@mediatek.com wrote:
> From: Mingchuang Qiao
>
> In pci bus scan flow, the LTR mechanism enable bit of DEVCTL2 register
> is
On Tue, Jan 12, 2021 at 01:15:42PM -0800, Nick Desaulniers wrote:
> On Tue, Jan 12, 2021 at 12:55 PM Nathan Chancellor
> wrote:
> >
> > When building ARCH=mips 32r2el_defconfig with CONFIG_UBSAN_ALIGNMENT:
> >
> > ld.lld: error: undefined symbol: __ubsan_handle_alignment_assumption
> > >>>
From: Arjun Roy
TCP zerocopy receive is used by high performance network applications to
further scale. For RX zerocopy, the memory containing the network data
filled by network driver is directly mapped into the address space of
high performance applications. To keep the TLB cost low, these
Jarod Wilson wrote:
>On Thu, Jan 07, 2021 at 07:03:40PM -0500, Jarod Wilson wrote:
>> On Fri, Dec 18, 2020 at 04:18:59PM -0800, Jay Vosburgh wrote:
>> > Jarod Wilson wrote:
>> >
>> > >This comes from an end-user request, where they're running multiple VMs on
>> > >hosts with bonded interfaces
one copy-pasta error below:
On 1/12/21 8:11 AM, Liam R. Howlett wrote:
> Use the new maple tree data structure to find an unmapped area.
>
> Signed-off-by: Liam R. Howlett
> ---
> mm/mmap.c | 249 ++
> 1 file changed, 27 insertions(+), 222
On 1/12/21 5:09 AM, Maxim Levitsky wrote:
On Tue, 2021-01-12 at 00:37 -0600, Wei Huang wrote:
From: Bandan Das
While running VM related instructions (VMRUN/VMSAVE/VMLOAD), some AMD
CPUs check EAX against reserved memory regions (e.g. SMM memory on host)
before checking VMCB's instruction
On Tue, 12 Jan 2021 22:26:21 +0800
Liu Peibao wrote:
> Thanks for your replay! I get it.
> But I still feel a little confused that we use different standard to
> measure the existing code and the new code. I also checked some commits,
> there are similar patches too.
For the reason of
On Tue, Jan 12, 2021 at 11:15:43AM -0800, Nadav Amit wrote:
> > On Jan 12, 2021, at 11:02 AM, Laurent Dufour
> > wrote:
> >
> > Le 12/01/2021 à 17:57, Peter Zijlstra a écrit :
> >> On Tue, Jan 12, 2021 at 04:47:17PM +0100, Laurent Dufour wrote:
> >>> Le 12/01/2021 à 12:43, Vinayak Menon a écrit
On Tue, Jan 12, 2021 at 10:59:58AM -0800, Shakeel Butt wrote:
> On Tue, Jan 12, 2021 at 9:12 AM Johannes Weiner wrote:
> >
> > When a value is written to a cgroup's memory.high control file, the
> > write() context first tries to reclaim the cgroup to size before
> > putting the limit in place
Hi Jakub
Thanks for the review,
Sure, I will reraise the patch (again v0i, sonce no code changes) after adding
space before '<'.
This patch adds lines in 'include/uapi/', that requires ABI version changes for
debian build. I am not sure, if we need any such changes to avoid breaking
I'AM SUFFERING FROM CANCER OF THE HEART
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On Tue, 12 Jan 2021 20:04:38 +0800
Keqian Zhu wrote:
> On 2021/1/12 5:49, Alex Williamson wrote:
> > On Thu, 7 Jan 2021 17:29:00 +0800
> > Keqian Zhu wrote:
> >
> >> If we detach group during dirty page tracking, we shouldn't remove
> >> vfio_dma, because dirty log will lose.
> >>
> >> But
Hi Bixuan,
On 12.01.2021 15:55, Bixuan Cui wrote:
> Add 'perf irq' to trace/measure the hardware interrupts.
>
> Now three functions are provided:
> 1. 'perf irq record ' to record the irq handler events.
> 2. 'perf irq script' to see a detailed trace of the workload that
>was
Hi,
On 12.01.2021 15:55, Bixuan Cui wrote:
> Add documentation for 'perf irq' command.
>
> Signed-off-by: Bixuan Cui
> ---
> tools/perf/Documentation/perf-irq.txt | 58 +++
> tools/perf/command-list.txt | 1 +
> 2 files changed, 59 insertions(+)
> create
On Tue, Jan 12, 2021 at 9:18 AM Alexander Potapenko wrote:
>
> On Tue, Jan 5, 2021 at 7:28 PM Andrey Konovalov wrote:
> >
> > It might not be obvious to the compiler that the expression must be
> > executed between writing and reading to fail_data. In this case, the
> > compiler might reorder or
On Tue, Jan 12, 2021 at 9:41 PM Yuri Benditovich
wrote:
>
> Existing TUN module is able to use provided "steering eBPF" to
> calculate per-packet hash and derive the destination queue to
> place the packet to. The eBPF uses mapped configuration data
> containing a key for hash calculation and
Quoting Dongjiu Geng (2020-12-15 03:09:45)
> diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
> index b2441b99f3d5..bc101833b35e 100644
> --- a/drivers/clk/hisilicon/Makefile
> +++ b/drivers/clk/hisilicon/Makefile
> @@ -17,3 +17,4 @@ obj-$(CONFIG_COMMON_CLK_HI6220)
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