On 9/19/2024 12:16 PM, Linus Torvalds wrote:
> On Thu, 19 Sept 2024 at 00:44, Neeraj Upadhyay
> wrote:
>>
>> While we were working on this problem, this refcount scalability issue got
>> resolved recently with conditional ref acquisition [3] (however, there are
>> new
>> developments in appa
Hi Willem,
Thanks for the review comments.
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the
> content is safe
>
> Mohan Prasad J wrote:
> > Add selftest case for testing the speed and duplex state of local NIC
> > driver and the partner based on the supported link mod
In the `mac802154_scan_worker` function, the `scan_req->type` field was
accessed after the RCU read-side critical section was unlocked. According
to RCU usage rules, this is illegal and can lead to unpredictable
behavior, such as accessing memory that has been updated or causing
use-after-free issu
Add a new type PROC_CN_MCAST_NOTIFY to proc connector API, which allows a
thread to notify the kernel that it has exited abnormally. Thread can also
send the exit status code it wants returned in the notification with it.
Exiting thread can call this either when it wants to call pthread_exit()
with
Recently we committed a fix to allow processes to receive notifications for
non-zero exits via the process connector module. Commit is a4c9a56e6a2c.
However, for threads, when it does a pthread_exit(&exit_status) call, the
kernel is not aware of the exit status with which pthread_exit is called.
I
Test to check if setting PROC_CN_MCAST_NOTIFY in proc connector API, allows
a thread's non-zero exit status to be returned to proc_filter.
The threads.c program creates 2 child threads. 1st thread handles signal
SIGSEGV, and 2nd thread needs to indicate some error condition (value 1)
to the kernel
On 9/19/24 1:01 PM, Shuah Khan wrote:
On 9/16/24 18:51, Artur Alves wrote:
Hi all,
This is part of a hackathon organized by LKCAMP[1], focused on writing
tests using KUnit. We reached out a while ago asking for advice on what
would be a useful contribution[2] and ended up choosing data structur
Am 9/19/2024 um 2:12 AM schrieb Jann Horn:
On Tue, Sep 17, 2024 at 4:33 PM Boqun Feng wrote:
Hazard pointers [1] provide a way to dynamically distribute refcounting
and can be used to improve the scalability of refcounting without
significant space cost.
+static inline void *__hazptr_try
2024年9月20日 02:58，Boqun Feng wrote：
>
> On Thu, Sep 19, 2024 at 09:57:12PM +0800, Alan Huang wrote:
> [...]
>>>
>>> I think you're right. (Although the node will be eventually deleted at
>>> cleanup_hazptr_context(), however there could be a long-live
>>> hazptr_context). It should be:
>>>
>>> h
On Thu, Sep 19, 2024 at 09:57:12PM +0800, Alan Huang wrote:
[...]
> >
> > I think you're right. (Although the node will be eventually deleted at
> > cleanup_hazptr_context(), however there could be a long-live
> > hazptr_context). It should be:
> >
> > hazptr_t val = smp_load_acquire(&hzcp->slots
Am 9/19/2024 um 8:56 AM schrieb Boqun Feng:
On Wed, Sep 18, 2024 at 11:17:37PM +0800, Alan Huang wrote:
[...]
+#define hazptr_tryprotect(hzp, gp, field) (typeof(gp))__hazptr_tryprotect(hzp,
(void **)&(gp), offsetof(typeof(*gp), field))
+#define hazptr_protect(hzp, gp, field) ({ \
+ typeof(gp
On 9/16/24 18:51, Artur Alves wrote:
Hi all,
This is part of a hackathon organized by LKCAMP[1], focused on writing
tests using KUnit. We reached out a while ago asking for advice on what
would be a useful contribution[2] and ended up choosing data structures
that did not yet have tests.
This p
2024年9月19日 15:10，Boqun Feng wrote：
>
> On Thu, Sep 19, 2024 at 02:39:13PM +0800, Lai Jiangshan wrote:
>> On Tue, Sep 17, 2024 at 10:34 PM Boqun Feng wrote:
>>
>>> +static void hazptr_context_snap_readers_locked(struct hazptr_reader_tree
>>> *tree,
>>> +
On 9/16/24 01:56, Anders Roxell wrote:
When cross building kselftest out-of-tree the following issue can be
seen:
[...]
make[4]: Entering directory
'/src/kernel/linux/tools/testing/selftests/net/lib'
CC csum
/usr/lib/gcc-cross/aarch64-linux-gnu/13/../../../../aarch64-linux-gnu/bin/ld:
c
On 9/15/24 00:49, Fangrui Song wrote:
glibc added support for DT_GNU_HASH in 2006 and DT_HASH has been
obsoleted for more than one decade in many Linux distributions.
Many vDSOs support DT_GNU_HASH. This patch adds selftests support.
Signed-off-by: Fangrui Song
Tested-by: Xi Ruoyao
--
Changes
Hi Krzysztof,
> >>> + '#extsys-id':
> >>
> >> '#' is not correct for sure, that's not a cell specifier.
> >>
> >> But anyway, we do not accept in general instance IDs.
> >
> > I'm happy to replace the instance ID with another solution.
> > In our case the remoteproc instance does not have a bas
Hi,
Thanks for the patch and sorry for the late reply (was OOO).
On Mon, Sep 16, 2024 at 07:49:05PM +1000, Jamie Bainbridge wrote:
> Running this test on a small system produces different failures every
> test checking deletions, and some flushes. From different test runs:
>
> TEST: Common host
On Thu, Sep 19, 2024 at 10:44:11AM +, mohan.pra...@microchip.com wrote:
> Hello Andrew,
>
> Thank you for the suggestion.
>
> > EXTERNAL EMAIL: Do not click links or open attachments unless you know the
> > content is safe
> >
> > > > Since you have batteries included python:
> > > >
> > > >
On 2024-09-17 at 08:32:11 -0700, Reinette Chatre wrote:
>Hi Maciej,
>
>On 8/27/24 1:15 AM, Maciej Wieczor-Retman wrote:
>> On 2024-08-12 at 16:40:10 -0700, Reinette Chatre wrote:
>> > On 7/12/24 2:04 AM, Maciej Wieczor-Retman wrote:
>
>> > > +
>> > > +if ((get_vendor() == ARCH_INTEL) && snc
On Thu, Sep 19, 2024 at 04:14:05AM +0530, Neeraj Upadhyay wrote:
> On 9/18/2024 12:48 PM, Linus Torvalds wrote:
> > On Tue, 17 Sept 2024 at 16:34, Boqun Feng wrote:
> >>
> >> This series introduces hazard pointers [1] to kernel space. A TL;DR
> >> description of hazard pointers is "a scalable refc
On Thu, 19 Sept 2024 at 16:15, Christoph Hellwig wrote:
>
> Agreed. From the description this would seem like a good fit for
> q_usage_counter in the block layer, which currently makes creative use
> of percpu counters.
Yes, if this actually could simplify code that currently used percpu
counter
On Wed, Sep 18, 2024 at 09:18:43AM +0200, Linus Torvalds wrote:
> On Tue, 17 Sept 2024 at 16:34, Boqun Feng wrote:
> >
> > This series introduces hazard pointers [1] to kernel space. A TL;DR
> > description of hazard pointers is "a scalable refcounting mechanim
> > with RCU-like API". More informa
Am 9/17/2024 um 4:33 PM schrieb Boqun Feng:
+#define hazptr_protect(hzp, gp, field) ({ \
+ typeof(gp) ___p;\
+ \
+ ___p = hazptr_trypro
2024年9月19日 15:10，Boqun Feng wrote：
>
> On Thu, Sep 19, 2024 at 02:39:13PM +0800, Lai Jiangshan wrote:
>> On Tue, Sep 17, 2024 at 10:34 PM Boqun Feng wrote:
>>
>>> +static void hazptr_context_snap_readers_locked(struct hazptr_reader_tree
>>> *tree,
>>> +
On Mon, Sep 16, 2024 at 07:49:05PM +1000, Jamie Bainbridge wrote:
> Running this test on a small system produces different failures every
> test checking deletions, and some flushes. From different test runs:
>
> TEST: Common host entries configuration tests (L2)[FAIL]
> Failed t
Hello Jiawei,
On 9/19/24 14:26, Jiawei Ye wrote:
On 9/19/24 17:01, Przemek Kitszel wrote:
In the `mac802154_scan_worker` function, the `scan_req->type` field was
accessed after the RCU read-side critical section was unlocked. According
to RCU usage rules, this is illegal and can lead to unpredi
On Thu, 19 Sep 2024 16:13:51 +0800, Wenbo Li
wrote:
> Currently, the virtio-net driver will perform a pre-dma-mapping for
> small or mergeable RX buffer. But for small packets, a mismatched address
> without VIRTNET_RX_PAD and xdp_headroom is used for unmapping.
>
> That will result in unsynchron
2024年9月19日 15:10，Boqun Feng wrote：
>
> On Thu, Sep 19, 2024 at 02:39:13PM +0800, Lai Jiangshan wrote:
>> On Tue, Sep 17, 2024 at 10:34 PM Boqun Feng wrote:
>>
>>> +static void hazptr_context_snap_readers_locked(struct hazptr_reader_tree
>>> *tree,
>>> +
On 9/19/24 17:01, Przemek Kitszel wrote:
> > In the `mac802154_scan_worker` function, the `scan_req->type` field was
> > accessed after the RCU read-side critical section was unlocked. According
> > to RCU usage rules, this is illegal and can lead to unpredictable
> > behavior, such as accessing me
On 9/19/24 10:10, Paolo Abeni wrote:
On 9/14/24 18:00, David Hunter wrote:
The error message describing the required modules is inaccurate.
Currently, only "SKIP: Need act_mirred module" is printed when any of
the modules are missing. As a result, users might only include that
module; however,
On Tue, 17 Sept 2024 at 03:13, Kumar, Udit wrote:
>
> Hi Mathieu,
>
> On 9/17/2024 2:07 PM, Mathieu Poirier wrote:
> > On Mon, 16 Sept 2024 at 23:20, Kumar, Udit wrote:
> >> On 9/16/2024 8:50 PM, Mathieu Poirier wrote:
> >>> On Mon, 16 Sept 2024 at 02:31, Siddharth Vadapalli
> >>> wrote:
>
s
On Tue, 17 Sept 2024 at 03:40, Beleswar Prasad Padhi wrote:
>
> Hi Mathieu,
>
> On 17/09/24 14:07, Mathieu Poirier wrote:
> > On Mon, 16 Sept 2024 at 23:20, Kumar, Udit wrote:
> >> On 9/16/2024 8:50 PM, Mathieu Poirier wrote:
> >>> On Mon, 16 Sept 2024 at 02:31, Siddharth Vadapalli
> >>> wro
On 9/14/24 18:00, David Hunter wrote:
The error message describing the required modules is inaccurate.
Currently, only "SKIP: Need act_mirred module" is printed when any of
the modules are missing. As a result, users might only include that
module; however, three modules are required.
Fix th
Hello Andrew,
Thank you for the suggestion.
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the
> content is safe
>
> > > Since you have batteries included python:
> > >
> > > ethtool --json enp2s0
> > > [sudo] password for andrew:
> > > [ {
> > > "ifname": "enp2
Hi Krzysztof,
> > Add devicetree binding schema for the External Systems remote processors
> >
> > The External Systems remote processors are provided on the Corstone-1000
> > IoT Reference Design Platform via the SSE-710 subsystem.
> >
> > For more details about the External Systems, please see
On 19/09/2024 11:35, Abdellatif El Khlifi wrote:
> Hi Krzysztof,
>
>>> Add devicetree binding schema for the External Systems remote processors
>>>
>>> The External Systems remote processors are provided on the Corstone-1000
>>> IoT Reference Design Platform via the SSE-710 subsystem.
>>>
>>> For
On 9/11/24 10:41, Florian Kauer wrote:
rxq contains a pointer to the device from where
the redirect happened. Currently, the BPF program
that was executed after a redirect via BPF_MAP_TYPE_DEVMAP*
does not have it set.
Add bugfix and related selftest.
Signed-off-by: Florian Kauer
---
Changes i
On 9/19/24 09:16, Jiawei Ye wrote:
In the `mac802154_scan_worker` function, the `scan_req->type` field was
accessed after the RCU read-side critical section was unlocked. According
to RCU usage rules, this is illegal and can lead to unpredictable
behavior, such as accessing memory that has been u
Currently, the virtio-net driver will perform a pre-dma-mapping for
small or mergeable RX buffer. But for small packets, a mismatched address
without VIRTNET_RX_PAD and xdp_headroom is used for unmapping.
That will result in unsynchronized buffers when SWIOTLB is enabled, for
example, when running
On Thu, 19 Sep 2024 16:32:45 +0800, Xuan Zhuo
wrote:
> On Thu, 19 Sep 2024 16:13:51 +0800, Wenbo Li
> wrote:
> > Currently, the virtio-net driver will perform a pre-dma-mapping for
> > small or mergeable RX buffer. But for small packets, a mismatched address
> > without VIRTNET_RX_PAD and xdp_h
On Wed, 18 Sept 2024 at 09:40, Abdellatif El Khlifi
wrote:
>
> Hi Mathieu,
>
> > Introduce remoteproc support for Corstone-1000 external systems
> >
> > The Corstone-1000 IoT Reference Design Platform supports up to two
> > external systems processors. These processors can be switched on or off
>
On 9/7/24 18:42, Justin Iurman wrote:
TL;DR This patch comes from a discussion we had with Jakub and Paolo.
This patch updates the IOAM selftests to support the new "tunsrc"
feature of IOAM. As a consequence, some changes were required. For
example, the IPv6 header must be accessed to check some
On Wed, Sep 18, 2024 at 10:35:58AM -0500, Rob Herring wrote:
> On Mon, Sep 16, 2024 at 05:31:36PM +0100, Conor Dooley wrote:
> > On Thu, Sep 12, 2024 at 04:23:44PM -0500, Samuel Holland wrote:
> > > Hi Valentina,
> > >
> > > On 2024-09-12 12:00 PM, Valentina Fernandez wrote:
> > > > Add a dt-bindi
On Tue, Sep 17, 2024 at 10:34 PM Boqun Feng wrote:
> +static void hazptr_context_snap_readers_locked(struct hazptr_reader_tree
> *tree,
> + struct hazptr_context *hzcp)
> +{
> + lockdep_assert_held(hzcp->lock);
> +
> + for (int i = 0; i <
In the `mac802154_scan_worker` function, the `scan_req->type` field was
accessed after the RCU read-side critical section was unlocked. According
to RCU usage rules, this is illegal and can lead to unpredictable
behavior, such as accessing memory that has been updated or causing
use-after-free issu
On Thu, 19 Sep 2024 11:52:14 +0800, Wenbo Li
wrote:
> Currently, the virtio-net driver will perform a pre-dma-mapping for
> small or mergeable RX buffer. But for small packets, a mismatched address
> without VIRTNET_RX_PAD and xdp_headroom is used for unmapping.
>
> That will result in unsynchron
On Wed, Sep 18, 2024 at 11:17:37PM +0800, Alan Huang wrote:
[...]
> > +#define hazptr_tryprotect(hzp, gp, field)
> > (typeof(gp))__hazptr_tryprotect(hzp, (void **)&(gp), offsetof(typeof(*gp),
> > field))
> > +#define hazptr_protect(hzp, gp, field) ({ \
> > + typeof(gp) ___p; \
> > + \
> > + ___p
On Thu, Sep 19, 2024 at 02:39:13PM +0800, Lai Jiangshan wrote:
> On Tue, Sep 17, 2024 at 10:34 PM Boqun Feng wrote:
>
> > +static void hazptr_context_snap_readers_locked(struct hazptr_reader_tree
> > *tree,
> > + struct hazptr_context *hzcp)
> > +{
>
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