On Fri, Feb 21, 2025 at 04:58:59AM +0100, Miguel Ojeda wrote:
> Hi Alistair,
>
> On Fri, Feb 21, 2025 at 2:20 AM Alistair Popple wrote:
> >
> > Is this a known issue or limitation? Or is this a bug/rough edge that still
> > needs fixing? Or alternatively am I just doing something wrong? Would
>
"Janne Grunau" writes:
> On Tue, Feb 18, 2025 at 02:00:47PM +0100, Andreas Hindborg wrote:
>> Add the trait `ParseInt` for parsing string representations of integers
>> where the string representations are optionally prefixed by a radix
>> specifier. Implement the trait for the primitive integer
On Mon, Feb 24, 2025 at 10:03:56AM +0100, Andras Sebok wrote:
> Signed-off-by: Andras Sebok
Applied after updating commit description, thank you.
--
Dmitry
On Mon, Feb 24, 2025 at 10:03:54AM +0100, Andras Sebok wrote:
> Adds support for imagis IST3038H, simular to IST3038C.
> Tested on samsung,j5y17lte.
>
> Signed-off-by: Andras Sebok
Applied after updating commit description a bit, thank you.
--
Dmitry
On 24/02/2025 10:03, Andras Sebok wrote:
> Signed-off-by: Andras Sebok
> ---
> .../devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml | 1 +
Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
yo
On Sat, Feb 22, 2025 at 07:54:16PM -0800, Suren Baghdasaryan wrote:
> On Fri, Feb 14, 2025 at 8:27 AM Vlastimil Babka wrote:
> >
> > Add functions for efficient guaranteed allocations e.g. in a critical
> > section that cannot sleep, when the exact number of allocations is not
> > known beforehand
On Fri, Jan 03, 2025 at 10:21:35AM +0100, Luca Weiss wrote:
> In the statement above AVDD gets enabled, and not IOVDD, so fix this
> copy-paste mistake.
>
> Fixes: 44362279bdd4 ("Input: add core support for Goodix Berlin Touchscreen
> IC")
> Reported-by: Jens Reidel
> Signed-off-by: Luca Weiss
On Fri, Jan 03, 2025 at 10:21:36AM +0100, Luca Weiss wrote:
> As per dt-bindings the property is called vddio-supply, so use the
> correct name in the driver instead of iovdd. The datasheet also calls
> the supply 'VDDIO'.
>
> Fixes: 44362279bdd4 ("Input: add core support for Goodix Berlin Touchsc
On 25.02.25 01:47, Vishal Annapurve wrote:
From: "Kirill A. Shutemov"
CONFIG_PARAVIRT_XXL is mainly defined/used by XEN PV guests. For
other VM guest types, features supported under CONFIG_PARAVIRT
are self sufficient. CONFIG_PARAVIRT mainly provides support for
TLB flush operations and time re
On Sun, Feb 23, 2025 at 11:36:15PM +0800, Cindy Lu wrote:
> In commit 6e890c5d5021 ("vhost: use vhost_tasks for worker threads"),
> the vhost now uses vhost_task and operates as a child of the
> owner thread. This aligns with containerization principles.
> However, this change has caused c
On Mon, 24 Feb 2025 19:21:26 +
Beau Belgrave wrote:
> > Beau?
> >
>
> I applied it locally and ensured it passed (seems timing related).
>
> Acked-by: Beau Belgrave
Thanks Beau,
Shuah,
Please apply this patch:
Acked-by: Steven Rostedt (Google)
-- Steve
On 2/24/25 02:36, Suren Baghdasaryan wrote:
> On Sat, Feb 22, 2025 at 8:44 PM Suren Baghdasaryan wrote:
>>
>> Don't know about this particular part but testing sheaves with maple
>> node cache and stress testing mmap/munmap syscalls shows performance
>> benefits as long as there is some delay to l
Main reason is, that it will later allow us to fall back to a nospec for
certain errors in push_stack().
This has the side effect of changing the sanitization-case to returning
ENOMEM. However, I believe this is more fitting as I undestand EFAULT to
indicate a verifier-internal bug.
Downside is,
This trades verification complexity for runtime overheads due to the
nospec inserted because of the EINVAL.
With increased limits this allows applying mitigations to large BPF
progs such as the Parca Continuous Profiler's prog. However, this
requires a jump-seq limit of 256k. In any case, the same
For the now raised REASON_STACK, this allows us to later fall back to
nospec for certain errors from push_stack() if we are on a speculative
path.
Fall back to nospec_result directly for the remaining sanitization errs
even if we are not on a speculative path. We must prevent a following
mem-acces
This implements the core of the series and causes the verifier to fall
back to mitigating Spectre v1 using speculation barriers. The approach
was presented at LPC'24:
https://lpc.events/event/18/contributions/1954/ ("Mitigating
Spectre-PHT using Speculation Barriers in Linux eBPF")
and RAID'24:
On Sun, 23 Feb 2025 07:19:49 -0800 Kevin Krakauer wrote:
> Thanks for the review! I'll split this up. Do you think it's better as two
> patchsets -- one for stability/deflaking, one for return value and output
> cleanup -- or as a single patchset with several commits?
Should be fine either way, th
Insert a nospec before the access to prevent it from ever using a index
that is subject to speculative scalar-confusion.
Signed-off-by: Luis Gerhorst
Acked-by: Henriette Herzog
Cc: Maximilian Ott
Cc: Milan Stephan
---
kernel/bpf/verifier.c | 15 ---
1 file changed, 8 insertions(+)
This changes the semantics of BPF_NOSPEC to always insert a speculation
barrier. If this is not needed on some architecture, bypass_spec_v4()
should instead return true.
Consequently, sanitize_stack_spill is renamed to nospec_result.
This later allows us to rely on BPF_NOSPEC from v4 to reduce co
On Fri, Feb 21, 2025 at 12:28:42PM -0500, Steven Rostedt wrote:
> On Fri, 21 Feb 2025 08:46:31 -0700
> Shuah Khan wrote:
>
> > On 2/20/25 20:35, realx...@163.com wrote:
> > > From: Yiqian Xun
> > >
> > > In parse_abi function,the dyn_test fails because the
> > > enable_file isn’t closed after s
On Mon, Feb 24, 2025 at 08:49:09AM +0100, Eric Auger wrote:
> Hi Michael,
>
> On 2/21/25 12:42 AM, Michael S. Tsirkin wrote:
> > Hongyu reported a hang on kexec in a VM. QEMU reported invalid memory
> > accesses during the hang.
> >
> > Invalid read at addr 0x102877002, size 2, region '(null)
better subject:
vhost: uapi to control task mode (owner vs kthread)
On Sun, Feb 23, 2025 at 11:36:20PM +0800, Cindy Lu wrote:
> Add a new UAPI to enable setting the vhost device to task mode.
better:
Add a new UAPI to configure the vhost device to use the kthread mode
> The userspace applica
On Sun, Feb 23, 2025 at 11:36:20PM +0800, Cindy Lu wrote:
> Add a new UAPI to enable setting the vhost device to task mode.
> The userspace application can use VHOST_SET_INHERIT_FROM_OWNER
> to configure the mode if necessary.
> This setting must be applied before VHOST_SET_OWNER, as the worker
> w
On Tue, Jan 21, 2025 at 11:33:46AM +0100, Eugenio Pérez wrote:
> A VDUSE device that implements virtiofs device works fine just by
> adding the device id to the whitelist.
>
> Signed-off-by: Eugenio Pérez
OK, but the commit log really should say why
you are doing this. And also why is it safe.
On Mon, Feb 24, 2025 at 02:47:14PM +, Brendan Jackman wrote:
> This is the bare minimum to illustrate what KUnit code would look like
> that covers the page allocator.
>
> Even this trivial test illustrates a couple of nice things that are
> possible when testing via KUnit
>
> 1. We can direc
On Wed, Feb 19, 2025 at 08:32:56PM +0100, Peter Hilber wrote:
...
> +/**
> + * VIORTC_MSG() - extract message from message handle
> + * @hdl: message handle
> + *
> + * Return: struct viortc_msg
> + */
> +#define VIORTC_MSG(hdl) ((hdl).msg)
> +
> +/**
> + * VIORTC_MSG_INIT() - initialize message
On Mon, Feb 24, 2025 at 02:47:13PM +, Brendan Jackman wrote:
> In order to test the page allocator, we need an "instance" of the page
> allocator that is not subject to unpredictable perturbation by the live
> system. The closest thing that we have to an "instance" of the allocator
> is a NUMA
On Mon, Feb 24, 2025 at 02:36:57PM +0100, Uladzislau Rezki (Sony) wrote:
> Currently "nfakewriters" parameter can be set to any value but
> there is no possibility to adjust it automatically based on how
> many CPUs a system has where a test is run on.
>
> To address this, if the "nfakewriters" is
On Mon, Feb 24, 2025 at 02:36:59PM +0100, Uladzislau Rezki (Sony) wrote:
> Switch for using of get_state_synchronize_rcu_full() and
> poll_state_synchronize_rcu_full() pair for debug a normal
> synchronize_rcu() call.
>
> Just using "not" full APIs to identify if a grace period
> is passed or not
On 24.02.2025 1:17 AM, Dmitry Baryshkov wrote:
> On Sat, Feb 22, 2025 at 02:00:49PM +0100, Luca Weiss wrote:
>> Set the paths where the device-specific firmware can be found for this
>> device.
>>
>> Fairphone 3 was shipped with secure-boot off so any testkey-signed
>> firmware is accepted.
>>
>> S
This is required to catch the errors later and fall back to a nospec if
on a speculative path.
Move code into do_check_insn(), replace
"continue" with "return CHECK_NEXT_INSN",
"break" with "return ALL_PATHS_CHECKED",
"do_print_state = " with "*do_print_state = ",
and "goto process_bpf_exit" / fal
This prevents us from trying to recover from these on speculative paths
in the future.
Signed-off-by: Luis Gerhorst
Acked-by: Henriette Herzog
Cc: Maximilian Ott
Cc: Milan Stephan
---
kernel/bpf/verifier.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/bpf/ve
Mark these cases as non-recoverable, even when they only occur during
speculative path verification.
Signed-off-by: Luis Gerhorst
Acked-by: Henriette Herzog
Cc: Maximilian Ott
Cc: Milan Stephan
---
kernel/bpf/verifier.c | 37 +++--
1 file changed, 19 insertions
This improves the expressiveness of unprivileged BPF by inserting
speculation barriers instead of rejcting the programs.
The approach was presented at LPC'24:
https://lpc.events/event/18/contributions/1954/ ("Mitigating
Spectre-PHT using Speculation Barriers in Linux eBPF")
and RAID'24:
http
On 24-02-2025 9:27 p.m., Konrad Dybcio wrote:
On 24.02.2025 1:17 AM, Dmitry Baryshkov wrote:
On Sat, Feb 22, 2025 at 02:00:49PM +0100, Luca Weiss wrote:
Set the paths where the device-specific firmware can be found for this
device.
Fairphone 3 was shipped with secure-boot off so any testkey-si
On Tue, Feb 18, 2025 at 02:00:47PM +0100, Andreas Hindborg wrote:
> Add the trait `ParseInt` for parsing string representations of integers
> where the string representations are optionally prefixed by a radix
> specifier. Implement the trait for the primitive integer types.
>
> Signed-off-by: And
On 2/24/25 12:26, Steven Rostedt wrote:
On Mon, 24 Feb 2025 19:21:26 +
Beau Belgrave wrote:
Beau?
I applied it locally and ensured it passed (seems timing related).
Acked-by: Beau Belgrave
Thanks Beau,
Shuah,
Please apply this patch:
Acked-by: Steven Rostedt (Google)
-- Stev
On Thu, Feb 20, 2025 at 10:33 AM Song Liu wrote:
>
>
> On Thu, Feb 20, 2025 at 10:22 AM Josh Poimboeuf wrote:
>>
>> On Wed, Feb 19, 2025 at 08:50:09PM -0800, Song Liu wrote:
>> > Indu, is this behavior (symbols with same name are not in
>> > sorted order from readelf -s) expected? Or is this a bu
> > > On Mon, 2025-02-10 at 16:06 -0800, Andrii Nakryiko wrote:
> > > > Tracking associated maps for a program is not necessary. As long as
> > > > the last BPF program using the BPF map is unloaded, the kernel will
> > > > automatically free not-anymore-referenced BPF map. Note that
> > > > bpf_ob
>From: Sinadin Shan
>Sent: Monday, February 24, 2025 7:10 AM
>To: Shrikanth Hegde; sh...@kernel.org
>Cc: linux-kselft...@vger.kernel.org; linux-kernel@vger.kernel.org; Chris Hyser
>Subject: Re: [PATCH v2 2/2] selftests: sched: skip cs_prctl_test for systems
>with core scheduling disabled
>
>On 24
On Mon, Feb 24, 2025 at 12:53 PM Vlastimil Babka wrote:
>
> On 2/24/25 02:36, Suren Baghdasaryan wrote:
> > On Sat, Feb 22, 2025 at 8:44 PM Suren Baghdasaryan
> > wrote:
> >>
> >> Don't know about this particular part but testing sheaves with maple
> >> node cache and stress testing mmap/munmap
On Mon, Feb 10, 2025 at 12:30 AM Weinan Liu wrote:
> I already have a WIP patch to add sframe support to the kernel module.
> However, it is not yet working. I had trouble unwinding frames for the
> kernel module using the current algorithm.
>
> Indu has likely identified the issue and will be add
Direct HLT instruction execution causes #VEs for TDX VMs which is routed
to hypervisor via TDCALL. safe_halt() routines execute HLT in STI-shadow
so IRQs need to remain disabled until the TDCALL to ensure that pending
IRQs are correctly treated as wake events. As per current TDX spec, HLT
#VE handl
Direct HLT instruction execution causes #VEs for TDX VMs which is routed
to hypervisor via TDCALL. If HLT is executed in STI-shadow, resulting #VE
handler will enable interrupts before TDCALL is routed to hypervisor
leading to missed wakeup events.
Current TDX spec doesn't expose interruptibility
From: "Kirill A. Shutemov"
CONFIG_PARAVIRT_XXL is mainly defined/used by XEN PV guests. For
other VM guest types, features supported under CONFIG_PARAVIRT
are self sufficient. CONFIG_PARAVIRT mainly provides support for
TLB flush operations and time related operations.
For TDX guest as well, par
Direct HLT instruction execution causes #VEs for TDX VMs which is routed
to hypervisor via TDCALL. safe_halt() routines execute HLT in STI-shadow
so IRQs need to remain disabled until the TDCALL to ensure that pending
IRQs are correctly treated as wake events.
Emit warning and fail emulation if IR
This reply was resent as the previous email had a missing In-Reply-To
in the header.
> > > On Mon, 2025-02-10 at 16:06 -0800, Andrii Nakryiko wrote:
> > > > Tracking associated maps for a program is not necessary. As long as
> > > > the last BPF program using the BPF map is unloaded, the kernel wi
On Mon, Feb 24, 2025 at 11:30 PM Janne Grunau wrote:
>
> The errors go away after exchanging i128 with i64 (while breaking the
> parsing for large values).
I don't think we can use 128-bit integers unconditionally for all
architectures (we could eventually get it to work for some though). So
we s
Greetings:
Welcome to v4.
Jakub recently commented [1] that I should not hold this series on
virtio-net linking queues to NAPIs behind other important work that is
on-going and suggested I re-spin, so here we are :)
This is a significant refactor from the rfcv3 and as such I've dropped
almost al
Refactor virtnet_napi_enable and virtnet_napi_tx_enable to take a struct
receive_queue. Create a helper, virtnet_napi_do_enable, which contains
the logic to enable a NAPI.
Signed-off-by: Joe Damato
---
drivers/net/virtio_net.c | 37 +
1 file changed, 21 insert
Use netif_queue_set_napi to map NAPIs to queue IDs so that the mapping
can be accessed by user apps, taking care to hold RTNL as needed.
$ ethtool -i ens4 | grep driver
driver: virtio_net
$ sudo ethtool -L ens4 combined 4
$ ./tools/net/ynl/pyynl/cli.py \
--spec Documentation/netlink/specs
Create virtnet_napi_disable helper and refactor virtnet_napi_tx_disable
to take a struct send_queue.
Signed-off-by: Joe Damato
---
drivers/net/virtio_net.c | 25 +
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio
Use persistent NAPI config so that NAPI IDs are not renumbered as queue
counts change.
$ sudo ethtool -l ens4 | tail -5 | egrep -i '(current|combined)'
Current hardware settings:
Combined: 4
$ ./tools/net/ynl/pyynl/cli.py \
--spec Documentation/netlink/specs/netdev.yaml \
--dump qu
Hi Cindy,
kernel test robot noticed the following build warnings:
[auto build test WARNING on v6.14-rc3]
[also build test WARNING on linus/master next-20250224]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--bas
On Mon, Feb 24, 2025 at 02:18:55AM +0200, Dmitry Baryshkov wrote:
> On Sat, Feb 22, 2025 at 02:00:50PM +0100, Luca Weiss wrote:
> > Add the necessary supplies and set an appropriete firmware-name for the
>
> Nit: appropriate
>
> > modem and enable it.
> >
> > Signed-off-by: Luca Weiss
> > ---
>
On Mon, Feb 24, 2025 at 09:43:48PM +0100, Luca Weiss wrote:
> On 24-02-2025 9:27 p.m., Konrad Dybcio wrote:
> > On 24.02.2025 1:17 AM, Dmitry Baryshkov wrote:
> > > On Sat, Feb 22, 2025 at 02:00:49PM +0100, Luca Weiss wrote:
> > > > Set the paths where the device-specific firmware can be found for
On Fri, Feb 14, 2025 at 05:27:37PM +0100, Vlastimil Babka wrote:
> Specifying a non-zero value for a new struct kmem_cache_args field
> sheaf_capacity will setup a caching layer of percpu arrays called
> sheaves of given capacity for the created cache.
>
> Allocations from the cache will allocate
On Mon, Feb 24, 2025 at 08:49:09AM +0100, Eric Auger wrote:
> Hi Michael,
>
> On 2/21/25 12:42 AM, Michael S. Tsirkin wrote:
> > Hongyu reported a hang on kexec in a VM. QEMU reported invalid memory
> > accesses during the hang.
> >
> > Invalid read at addr 0x102877002, size 2, region '(null)
On Fri Feb 14, 2025 at 6:29 AM CET, Jens Reidel wrote:
> The current implementation of the goodix_berlin driver lacks support for
> revisions A and B of the Berlin IC. This change adds support for the
> gt9897 IC, which is a Berlin-A revision part.
>
> The differences between revision D and A are r
Hello:
This patch was applied to netdev/net-next.git (main)
by David S. Miller :
On Tue, 18 Feb 2025 10:39:08 +0800 you wrote:
> There are several issues existed in start_xmit():
>
> - Transmitted packets need to be freed before sending a packet, this
> introduces delay and increases the avera
On 2/21/25 17:27, Sinadin Shan wrote:
For kernels with CONFIG_SCHED_CORE=n, the sched selftest cs_prctl_test
fails with "Not a core sched system" error. Change this to gracefully
skip the test for systems with core scheduling disabled. Exiting early
would also ensure failures reported in obtai
Hi,
On 14/02/2025 06:29, Jens Reidel wrote:
The current implementation of the goodix_berlin driver lacks support for
revisions A and B of the Berlin IC. This change adds support for the
gt9897 IC, which is a Berlin-A revision part.
The differences between revision D and A are rather minor, a ha
On Fri, Feb 14, 2025 at 05:27:38PM +0100, Vlastimil Babka wrote:
> Extend the sheaf infrastructure for more efficient kfree_rcu() handling.
> For caches with sheaves, on each cpu maintain a rcu_free sheaf in
> addition to main and spare sheaves.
>
> kfree_rcu() operations will try to put objects o
Adds support for imagis IST3038H, simular to IST3038C.
Tested on samsung,j5y17lte.
Signed-off-by: Andras Sebok
---
drivers/input/touchscreen/imagis.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/input/touchscreen/imagis.c
b/drivers/input/touchscreen/imagis.c
index abeae9
Signed-off-by: Andras Sebok
---
.../devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git
a/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yaml
b/Documentation/devicetree/bindings/input/touchscreen/imagis,ist3038c.yam
Remove all superfluous index ('i += len') assignements (value not used
afterwards).
Signed-off-by: Peter Seiderer
Reviewed-by: Simon Horman
---
Changes v6 -> v7
- rebased on actual net-next/main
- no changes
Changes v5 -> v6
- add rev-by Simon Horman
Changes v4 -> v5
- new patch (sugge
Fix mpls list reset parsing to work as describe in
Documentation/networking/pktgen.rst:
pgset "mpls 0"turn off mpls (or any invalid argument works too!)
- before the patch
$ echo "mpls 0001,0002" > /proc/net/pktgen/lo\@0
$ grep mpls /proc/net/pktgen/lo\@0
Fix mpls maximum labels list parsing up to MAX_MPLS_LABELS/16 entries
(instead of up to MAX_MPLS_LABELS - 1).
Addresses the following:
$ echo "mpls
0f00,0f01,0f02,0f03,0f04,0f05,0f06,0f07,0f08,0f09,0f0a,0f0b,0f0c,0f0d,0f0e,0
Remove extra tmp variable in pktgen_if_write (re-use len instead).
Signed-off-by: Peter Seiderer
Reviewed-by: Simon Horman
---
Changes v6 -> v7
- rebased on actual net-next/main
- no changes
Changes v5 -> v6
- no changes
Changes v4 -> v5
- split up patchset into part i/ii (suggested by
While taking a look at '[PATCH net] pktgen: Avoid out-of-range in
get_imix_entries' ([1]) and '[PATCH net v2] pktgen: Avoid out-of-bounds
access in get_imix_entries' ([2], [3]) and doing some tests and code review
I detected that the /proc/net/pktgen/... parsing logic does not honour the
user given
Honour the user given buffer size for the hex32_arg(), num_arg(),
strn_len(), get_imix_entries() and get_labels() calls (otherwise they will
access memory outside of the user given buffer).
Signed-off-by: Peter Seiderer
Reviewed-by: Simon Horman
---
Changes v6 -> v7
- rebased on actual net-nex
Fix mix of int/long (and multiple conversion from/to) by using consequently
size_t for i and max and ssize_t for len and adjust function signatures
of hex32_arg(), count_trail_chars(), num_arg() and strn_len() accordingly.
Signed-off-by: Peter Seiderer
---
Changes v6 -> v7
- rebased on actual n
Add some test for /proc/net/pktgen/... interface.
- enable 'CONFIG_NET_PKTGEN=m' in tools/testing/selftests/net/config
Signed-off-by: Peter Seiderer
---
Changes v6 -> v7
- rebased on actual net-next/main
- fixed conflict in tools/testing/selftests/net/config
Changes v5 -> v6
- no changes
Hi Stanislav,
On 2/21/25 5:14 PM, Stanislav Fomichev wrote:
On 02/21, Bastien Curutchet (eBPF Foundation) wrote:
test_xdp_vlan.sh isn't used by the BPF CI.
Migrate test_xdp_vlan.sh in prog_tests/xdp_vlan.c.
It uses the same BPF programs located in progs/test_xdp_vlan.c and the
same network top
Remove some superfluous variable initializing before hex32_arg call (as the
same init is done here already).
Signed-off-by: Peter Seiderer
Reviewed-by: Simon Horman
---
Changes v6 -> v7
- rebased on actual net-next/main
- no changes
Changes v5 -> v6
- adjust to dropped patch ''net: pktgen
Hello *,
On Mon, 24 Feb 2025 10:22:35 +0100, Peter Seiderer wrote:
> Fix mix of int/long (and multiple conversion from/to) by using consequently
> size_t for i and max and ssize_t for len and adjust function signatures
> of hex32_arg(), count_trail_chars(), num_arg() and strn_len() accordingly.
Some distributions may not enable MPTCP by default. All other MPTCP tests
source mptcp_lib.sh to ensure MPTCP is enabled before testing. However,
the ip_local_port_range test is the only one that does not include this
step.
Let's also ensure MPTCP is enabled in netns for ip_local_port_range so
tha
On Fri, 21 Feb 2025 at 19:26, Brendan Jackman wrote:
>
> It seems that 9pfs does not allow truncating unlinked files, Mark Brown
> has noted that NFS may also behave this way.
I have not investigated at all but I _think_ over the weekend I saw
ftruncate() failure on a QEMU guest where /tmp was tm
From: Shigeru Yoshida
[ Upstream commit c7f2188d68c114095660a950b7e880a1e5a71c8f ]
The function bpf_test_init() now returns an error if user_size
(.data_size_in) is less than ETH_HLEN, causing the tests to
fail. Adjust the data size to ensure it meets the requirement of
ETH_HLEN.
Signed-off-by:
From: Jiayuan Chen
[ Upstream commit a0c11149509aa905aeec10cf9998091443472b0b ]
SOCK_NONBLOCK flag is only effective during socket creation, not during
recv. Use MSG_DONTWAIT instead.
Signed-off-by: Jiayuan Chen
Signed-off-by: Martin KaFai Lau
Acked-by: Jakub Sitnicki
Acked-by: John Fastaben
From: Jiayuan Chen
[ Upstream commit a0c11149509aa905aeec10cf9998091443472b0b ]
SOCK_NONBLOCK flag is only effective during socket creation, not during
recv. Use MSG_DONTWAIT instead.
Signed-off-by: Jiayuan Chen
Signed-off-by: Martin KaFai Lau
Acked-by: Jakub Sitnicki
Acked-by: John Fastaben
From: Jiayuan Chen
[ Upstream commit a0c11149509aa905aeec10cf9998091443472b0b ]
SOCK_NONBLOCK flag is only effective during socket creation, not during
recv. Use MSG_DONTWAIT instead.
Signed-off-by: Jiayuan Chen
Signed-off-by: Martin KaFai Lau
Acked-by: Jakub Sitnicki
Acked-by: John Fastaben
Hi Petr,
"Andreas Hindborg" writes:
> This series extends the `module!` macro with support module parameters. It
> also adds some string to integer parsing functions and updates `BStr` with
> a method to strip a string prefix.
>
> This series stated out as code by Adam Bratschi-Kaye lifted from
On Fri, Feb 21, 2025 at 06:28:49PM +0100, Vlastimil Babka wrote:
> On 2/21/25 17:30, Keith Busch wrote:
> > On Wed, Aug 07, 2024 at 12:31:19PM +0200, Vlastimil Babka wrote:
> >> We would like to replace call_rcu() users with kfree_rcu() where the
> >> existing callback is just a kmem_cache_free().
Syzkaller has reported a warning in to_nfit_bus_uuid():
==
only secondary bus families can be translated
WARNING: CPU: 0 PID: 15821 at drivers/acpi/nfit/core.c:80
to_nfit_bus_uuid+0x6f/0x90 drivers/acpi/nfit/core.c:79
Modules linked
On 24-02-2025 01:49 pm, Shrikanth Hegde wrote:
On 2/21/25 17:27, Sinadin Shan wrote:
For kernels with CONFIG_SCHED_CORE=n, the sched selftest cs_prctl_test
fails with "Not a core sched system" error. Change this to gracefully
skip the test for systems with core scheduling disabled. Exiting
Formats testing messages to improve debugging:
- Inserts alignment tabs with printf for testing results
- Changes messages to improve readability and understanding
Signed-off-by: Leonardo Felipe Takao Hirata
---
.../memory-hotplug/mem-on-off-test.sh | 21 ---
1 file chang
On Fri, Feb 14, 2025 at 05:27:41PM +0100, Vlastimil Babka wrote:
> Instead of local_lock_irqsave(), use localtry_trylock() when potential
> callers include irq context, and localtry_lock() otherwise (such as when
> we already know the gfp flags allow blocking).
>
> This should reduce the locking (
On Fri, Feb 21, 2025 at 10:50:04AM +0100, Jan Kiszka wrote:
> On 19.02.25 23:07, Luis Claudio R. Goncalves wrote:
> > Hello RT-list!
> >
> > I'm pleased to announce the 5.10.234-rt126 stable release.
> >
> > This release is just an update to the new stable 5.10.234 version and
> > no RT-specific
A task in the kernel (task_mm_cid_work) runs somewhat periodically to
compact the mm_cid for each process. Add a test to validate that it runs
correctly and timely.
The test spawns 1 thread pinned to each CPU, then each thread, including
the main one, runs in short bursts for some time. During thi
Hi Andreas,
> On 18 Feb 2025, at 10:00, Andreas Hindborg wrote:
>
> Add the trait `ParseInt` for parsing string representations of integers
> where the string representations are optionally prefixed by a radix
> specifier. Implement the trait for the primitive integer types.
>
> Signed-off-by:
Switch for using of get_state_synchronize_rcu_full() and
poll_state_synchronize_rcu_full() pair for debug a normal
synchronize_rcu() call.
Just using "not" full APIs to identify if a grace period
is passed or not might lead to a false kernel splat.
Link: https://lore.kernel.org/lkml/Z5ikQeVmVdsWQ
Currently "nfakewriters" parameter can be set to any value but
there is no possibility to adjust it automatically based on how
many CPUs a system has where a test is run on.
To address this, if the "nfakewriters" is set to negative it will
be adjusted to num_online_cpus() during torture initializa
"Daniel Almeida" writes:
> Hi Andreas,
>
>> On 18 Feb 2025, at 10:00, Andreas Hindborg wrote:
>>
>> Add the trait `ParseInt` for parsing string representations of integers
>> where the string representations are optionally prefixed by a radix
>> specifier. Implement the trait for the primitive i
Hi Hangbin, Davide,
On 24/02/2025 10:40, Hangbin Liu wrote:
> Some distributions may not enable MPTCP by default. All other MPTCP tests
> source mptcp_lib.sh to ensure MPTCP is enabled before testing. However,
> the ip_local_port_range test is the only one that does not include this
> step.
This
Andreas Hindborg writes:
> The `Index` implementation on `BStr` was lost when we switched `BStr` from
> a type alias of `[u8]` to a newtype. This patch adds back `Index` by
> implementing `Index` for `BStr` when `Index` would be implemented for
> `[u8]`.
>
> Signed-off-by: Andreas Hindborg
Revi
One thing to note with this series is that it now implies file-backed VMAs
which install guard regions will now have an anon_vma installed if not
already present (i.e. if not post-CoW MAP_PRIVATE).
I have audited kernel source for instances of vma->anon_vma checks and
found nowhere where this woul
This is the bare minimum to illustrate what KUnit code would look like
that covers the page allocator.
Even this trivial test illustrates a couple of nice things that are
possible when testing via KUnit
1. We can directly assert that the correct zone was used.
(Although note due to the simplis
On Sat, Feb 22, 2025 at 11:24:26AM +0100, Willy Tarreau wrote:
> On Mon, Feb 03, 2025 at 10:05:14AM +0100, Thomas Weißschuh wrote:
> > nolibc does not provide this header, instead its definitions are
> > available unconditionally.
>
> Please think about reminding which one you're talking about so
The page allocator does a lot of stuff that is not visible to the user
in any deterministic way. But this stuff is still important and it would
be nice to test that behaviour.
KUnit is a tool for unit-testing kernel-internal APIs. This is an
attempt to adopt it the page allocator.
I have been hac
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