On Sat, Mar 30, 2024 at 7:28 AM Andrii Nakryiko
wrote:
>
> On Thu, Mar 28, 2024 at 8:10 AM Steven Rostedt wrote:
> >
> > On Thu, 28 Mar 2024 22:43:46 +0800
> > 梦龙董 wrote:
> >
> > > I have done a simple benchmark on creating 1000
> > > trampolines. It is slow, quite slow, which consume up to
> >
On Fri, Mar 29, 2024 at 7:17 AM Alexei Starovoitov
wrote:
>
> On Thu, Mar 28, 2024 at 8:10 AM Steven Rostedt wrote:
> >
> > On Thu, 28 Mar 2024 22:43:46 +0800
> > 梦龙董 wrote:
> >
> > > I have done a simple benchmark on creating 1000
> > > trampolines. It is slow, quite slow, which consume up to
On Thu, Mar 28, 2024 at 11:11 PM Steven Rostedt wrote:
>
> On Thu, 28 Mar 2024 22:43:46 +0800
> 梦龙董 wrote:
>
> > I have done a simple benchmark on creating 1000
> > trampolines. It is slow, quite slow, which consume up to
> > 60s. We can't do it this way.
> >
> > Now, I have a bad idea. How
On Thu, Mar 28, 2024 at 8:10 AM Steven Rostedt wrote:
>
> On Thu, 28 Mar 2024 22:43:46 +0800
> 梦龙董 wrote:
>
> > I have done a simple benchmark on creating 1000
> > trampolines. It is slow, quite slow, which consume up to
> > 60s. We can't do it this way.
> >
> > Now, I have a bad idea. How about
On Fri, Mar 29, 2024 at 2:39 PM Tejun Heo wrote:
>
> Hello,
>
> On Fri, Mar 29, 2024 at 02:22:28PM +0100, Djalal Harouni wrote:
> > It would be easy at least for me if I just start with cgroupv2 and
> > ensure that it has same available filenames as if we go through kernfs.
> > Not a root cgroup
The pull request you sent on Fri, 29 Mar 2024 13:39:36 -0600:
> git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
> tags/linux_kselftest-kunit-fixes-6.9-rc2
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/a2ad5d9e65474f7a06038f5a91fb4d8c973cbea2
The pull request you sent on Fri, 29 Mar 2024 14:19:52 -0600:
> git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
> tags/linux_kselftest-fixes-6.9-rc2
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/1ab5c8a338c470ceda8221e3a00ad0fc0a3be55b
Thank
On Fri, Mar 29, 2024 at 12:20 PM Jordan Rife wrote:
>
> sock_addr_testmod provides a mechanism for the sock_addr_kern prog_test
> to drive socket operations in kernel space. On init, one of the
> following socket operations is performed based on the module parameters:
> kernel_bind(),
Hello,
On Fri, Mar 29, 2024 at 02:22:28PM +0100, Djalal Harouni wrote:
> It would be easy at least for me if I just start with cgroupv2 and
> ensure that it has same available filenames as if we go through kernfs.
> Not a root cgroup node and maybe only freeze and kill for now that are
> part of
On Fri, Mar 29, 2024 at 12:32 PM Muhammad Usama Anjum
wrote:
>
> On 3/29/24 10:42 PM, Edward Liaw wrote:
> > Got a compilation error for ffsl after 91b80cc5b39f ("selftests: mm: fix
> > map_hugetlb failure on 64K page size systems") imported vm_util.h.
> >
> > Fixes: af605d26a8f2 ("selftests/mm:
Hi Linus,
Please pull the following kselftest fixes update for Linux 6.9rc2.
This kselftest fixes update for Linux 6.9-rc2 consists of fixes
to seccomp and ftrace tests and a change to add config file for
dmabuf-heap test to increase coverage.
diff is attached.
thanks,
-- Shuah
On 3/27/24 7:44 AM, Tianchen Ding wrote:
> The test case test_cgcore_lesser_ns_open only tasks effect when cgroup2
> is mounted with "nsdelegate" mount option. If it misses this option, or
> is remounted without "nsdelegate", the test case will fail. For example,
> running bpf/test_cgroup_storage
On 2/7/24 10:26 PM, Xin Li wrote:
> Add tests for FRED event data and VMX nested-exception.
>
> FRED is designed to save a complete event context in its stack frame,
> e.g., FRED saves the faulting linear address of a #PF into a 64-bit
> event data field defined in FRED stack frame. As such,
On 3/27/24 10:42 AM, Manali Shukla wrote:
> By default, HLT instruction executed by guest is intercepted by hypervisor.
> However, KVM_CAP_X86_DISABLE_EXITS capability can be used to not intercept
> HLT by setting KVM_X86_DISABLE_EXITS_HLT.
>
> Add a test case to test KVM_X86_DISABLE_EXITS_HLT
On 3/29/24 5:06 AM, Elizabeth Figura wrote:
> Wine has tests for its synchronization primitives, but these are more
> accessible
> to kernel developers, and also allow us to test some edge cases that Wine does
> not care about.
>
> This patch adds tests for semaphore-specific ioctls
On Fri, Mar 29, 2024 at 12:50 PM Muhammad Usama Anjum
wrote:
>
> On 3/29/24 9:44 AM, Deepak Gupta wrote:
> > Adds kselftest for RISC-V control flow integrity implementation for user
> > mode. There is not a lot going on in kernel for enabling landing pad for
> > user mode. Thus kselftest simply
On 3/26/24 14:27, Mark Brown wrote:
On Tue, Mar 26, 2024 at 02:20:08PM -0600, Shuah Khan wrote:
I am seeing the following compile warnings. Please fix and send patch
on top pf linux-kselftest fixes.
Which toolchain and architecture are you using? These compile cleanly
for me.
This is what
On 3/26/24 12:40 AM, Edward Liaw wrote:
> Following issue was observed while running the uffd-unit-tests selftest
> on ARM devices. On x86_64 no issues were detected:
>
> pthread_create followed by fork caused deadlock in certain cases
> wherein fork required some work to be completed by the
On 3/29/24 9:44 AM, Deepak Gupta wrote:
> Adds kselftest for RISC-V control flow integrity implementation for user
> mode. There is not a lot going on in kernel for enabling landing pad for
> user mode. Thus kselftest simply enables landing pad for the binary and
> a signal handler is registered
Please add selftest tag in the subject in selftest patches.
On 3/28/24 2:31 AM, Yuanchu Xie wrote:
> A basic test that verifies the working set size of a simple memory
> accessor. It should work with or without the aging thread.
>
> Question: I don't know how to best test file memory in
Hi Linus,
Please pull the following kunit fixes update for Linux 6.9rc2.
This kunit update for Linux 6.9-rc2 consists of one urgent fix for
--alltests build failure related to renaming of CONFIG_DAMON_DBGFS
to DAMON_DBGFS_DEPRECATED to the missing config option.
This is one of the two fixes to
On 3/29/24 9:05 PM, Jakub Kicinski wrote:
> The netdev CI runs in a VM and captures serial, so stdout and
> stderr get combined. Because there's a missing new line in
> stderr the test ends up corrupting KTAP:
>
> # Successok 1 selftests: net: reuseaddr_conflict
>
> which should have been:
>
On 3/29/24 10:42 PM, Edward Liaw wrote:
> Got a compilation error for ffsl after 91b80cc5b39f ("selftests: mm: fix
> map_hugetlb failure on 64K page size systems") imported vm_util.h.
>
> Fixes: af605d26a8f2 ("selftests/mm: merge util.h into vm_util.h")
Why do you think this Fixes tag is needed?
Without this fix, the bind4 and bind6 programs will reject bind attempts
on big endian systems. This patch ensures that CI tests pass for the
s390x architecture.
Signed-off-by: Jordan Rife
---
.../testing/selftests/bpf/progs/bind4_prog.c | 18 ++
The sock_addr_kern test program leverages the sock_addr_testmod kernel
module to test the interaction between kernel socket operations and BPF
sockaddr hooks. It focuses on operations that may modify an input
address, namely connect, bind, and sendmsg to add regression test
coverage for
- commit
Add optional setup/cleanup subcommands to test_sock_addr.sh to allow
those phases to be driven externally by the sock_addr_kern test program.
Signed-off-by: Jordan Rife
---
tools/testing/selftests/bpf/test_sock_addr.sh | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git
Factor out useful defines and load_path() from the test_sock_addr self
test to use them in sock_addr_kern.
Signed-off-by: Jordan Rife
---
tools/testing/selftests/bpf/Makefile | 34 +
.../testing/selftests/bpf/sock_addr_helpers.c | 46 +++
Copy recv_msg_from_client helper from test_sock_addr self test in order
to use it in the sock_addr_kern test program.
Signed-off-by: Jordan Rife
---
tools/testing/selftests/bpf/network_helpers.c | 31 +++
tools/testing/selftests/bpf/network_helpers.h | 1 +
2 files changed, 32
Factor out cmp_addr into network_helpers.c to so that it can be used by
the sock_addr_kern test program.
Signed-off-by: Jordan Rife
---
tools/testing/selftests/bpf/network_helpers.c | 34 +++
tools/testing/selftests/bpf/network_helpers.h | 4 +++
This patch introduces a helpers used by the sock_addr_kern test program
that allow it to load and unload sock_addr_testmod.
Signed-off-by: Jordan Rife
---
tools/testing/selftests/bpf/testing_helpers.c | 44 ++-
tools/testing/selftests/bpf/testing_helpers.h | 2 +
2 files
sock_addr_testmod provides a mechanism for the sock_addr_kern prog_test
to drive socket operations in kernel space. On init, one of the
following socket operations is performed based on the module parameters:
kernel_bind(), kernel_connect(), or sock_sendmsg()/kernel_sendmsg() and
results are
In a follow up to these patches,
- commit 0bdf399342c5("net: Avoid address overwrite in kernel_connect")
- commit 86a7e0b69bd5("net: prevent rewrite of msg_name in sock_sendmsg()")
- commit c889a99a21bf("net: prevent address rewrite in kernel_bind()")
- commit 01b2885d9415("net: Save and restore
Got a compilation error on Android for ffsl after 91b80cc5b39f
("selftests: mm: fix map_hugetlb failure on 64K page size systems")
included vm_util.h.
Fixes: af605d26a8f2 ("selftests/mm: merge util.h into vm_util.h")
Signed-off-by: Edward Liaw
---
v2: s/import/include and clarified that
Got a compilation error for ffsl after 91b80cc5b39f ("selftests: mm: fix
map_hugetlb failure on 64K page size systems") imported vm_util.h.
Fixes: af605d26a8f2 ("selftests/mm: merge util.h into vm_util.h")
Signed-off-by: Edward Liaw
---
tools/testing/selftests/mm/vm_util.h | 2 +-
1 file
On Wed, Mar 27, 2024 at 03:53:39PM -0700, Yuanchu Xie wrote:
> On Wed, Mar 27, 2024 at 2:44 PM Gregory Price
> wrote:
> >
> > Please note that this proposed interface (move_phys_pages) is very
> > unlikely to be received upstream due to side channel concerns. Instead,
> > it's more likely that
The netdev CI runs in a VM and captures serial, so stdout and
stderr get combined. Because there's a missing new line in
stderr the test ends up corrupting KTAP:
# Successok 1 selftests: net: reuseaddr_conflict
which should have been:
# Success
ok 1 selftests: net: reuseaddr_conflict
On Wed, Mar 27, 2024 at 07:39:20PM +, Simon Horman wrote:
[ ... ]
> > >
> > > Hi Guenter,
> > >
> > > a minor nit from my side: this change results in a Kernel doc warning.
> > >
> > > .../bug.h:29: warning: expecting prototype for _EMIT_BUG_ENTRY().
> > > Prototype was for
On 3/29/24 01:36, Ingo Molnar wrote:
* Shuah Khan wrote:
On 3/27/24 05:17, Muhammad Usama Anjum wrote:
Skip instead of failing when prerequisite conditions aren't fulfilled,
such as invalid xstate values etc. This patch would make the tests show
as skip when run by:
make -C
Dear Linux folks,
Running the selftests in a QEMU q35 VM, they hang.
```
$ make kselftest
[…]
ok 6 selftests: pidfd: pidfd_getfd_test
# timeout set to 45
# selftests: pidfd: pidfd_setns_test
# TAP version 13
# 1..7
# # Starting 7 tests from 2 test cases.
# # RUN global.setns_einval
Hello Tejun, Alexei,
On 3/28/24 22:01, Tejun Heo wrote:
> Hello,
>
> On Thu, Mar 28, 2024 at 01:45:56PM -0700, Alexei Starovoitov wrote:
>> On Thu, Mar 28, 2024 at 1:02 PM Tejun Heo wrote:
>>>
>>> There's also cgroup.kill which would be useful for similar use cases. We can
>>> add interface for
From: Geliang Tang
There's a bug in pm_nl_check_endpoint(), 'dev' didn't be parsed correctly.
If calling it in the 2nd test of endpoint_tests() too, it fails with an
error like this:
creation [FAIL] expected '10.0.2.2 id 2 subflow dev dev' \
found '10.0.2.2 id 2 subflow
From: Davide Caratti
Current MPTCP servers increment MPTcpExtMPCapableFallbackACK when they
accept non-MPC connections. As reported by Christoph, this is "surprising"
because the counter might become greater than MPTcpExtMPCapableSYNRX.
MPTcpExtMPCapableFallbackACK counter's name suggests it
: 20240329-upstream-net-20240329-fallback-mib-b0fec9c6189b
Best regards,
--
Matthieu Baerts (NGI0)
Align the behavior for gcc and clang builds by interpreting unset
`ARCH` and `CROSS_COMPILE` variables in `LLVM` builds as a sign that the
user wants to build for the host architecture.
This patch preserves the properties that setting the `ARCH` variable to an
unknown value will trigger an error
On Fri, Mar 29, 2024 at 05:26:18PM +0800, Max Hsu wrote:
> The mcontext/hcontext/scontext CSRs are optional in the Sdtrig extension,
> to prevent RW operations to the missing CSRs, which will cause
> illegal instructions.
>
> As a solution, we have proposed the dt format for these CSRs.
As I
On Fri, Mar 29, 2024 at 05:26:21PM +0800, Max Hsu wrote:
> Sdtrig extension introduce two optional CSRs [hcontext/scontext],
> that will be storing PID/Guest OS ID for the debug feature.
>
> The availability of these two CSRs will be determined by
> DTS and Smstateen extension [h/s]stateen0 CSR
From: Yong-Xuan Wang
Update the get-reg-list test to test the Sdtrig Extension is available
for guest OS.
Signed-off-by: Yong-Xuan Wang
Co-developed-by: Max Hsu
Signed-off-by: Max Hsu
---
tools/testing/selftests/kvm/riscv/get-reg-list.c | 27
1 file changed, 27
From: Yong-Xuan Wang
hcontext CSR store the ID of the currently running machine status.
When a virtual machine is initialized, it will obtain and utilize
the first available ID.
It will be updated to VM ID when switch to a virtual machine,
and updated to 0 when switch back to host machine.
From: Yong-Xuan Wang
Updte the ONE_REG interface to allow the scontext CSR can be accessed from
user space.
Signed-off-by: Yong-Xuan Wang
Co-developed-by: Max Hsu
Signed-off-by: Max Hsu
---
arch/riscv/include/uapi/asm/kvm.h | 8 +
arch/riscv/kvm/vcpu_onereg.c | 62
From: Yong-Xuan Wang
We extend the KVM ISA extension ONE_REG interface to allow VMM
tools to detect and enable Sdtrig extension for Guest/VM. We
also save/restore the scontext CSR for guest VCPUs and set the
HSCONTEXT bit in hstateen0 CSR if the scontext CSR is available
for Guest/VM when the
Write the next task PID to the scontext CSR if the use_scontext
static branch is enabled by the detection of the cpufeature.c
The scontext CSR needs to be saved and restored when entering
a non-retentive idle state so that when resuming the CPU,
the task's PID on the scontext CSR will be correct.
>From Smstateen extension: the values of the [h/s]stateen CSRs will
be lost when entering a non-retentive idle state.
Therefore, these CSRs values need to be restored to ensure that
the corresponding functionality remains enabled.
Signed-off-by: Max Hsu
---
arch/riscv/include/asm/suspend.h | 6
Sdtrig extension introduce two optional CSRs [hcontext/scontext],
that will be storing PID/Guest OS ID for the debug feature.
The availability of these two CSRs will be determined by
DTS and Smstateen extension [h/s]stateen0 CSR bit 57.
If all CPUs hcontext/scontext checks are satisfied, it will
Add hcontext/scontext CSRs definition to csr.h
As riscv-state-enable [1] Smstateen extension spec:
Sdtrig CSRs: hcontext/scontext availability are controlled by
bit 57 of Smstateen CSRs.
Link:
https://github.com/riscvarchive/riscv-state-enable/releases/download/v1.0.0/Smstateen.pdf
[1]
Add ISA extension parsing for Sdtrig as introduced
in riscv-debug-spec [1] Chapter 5
Link:
https://github.com/riscv/riscv-debug-spec/releases/download/ar20231208/riscv-debug-stable.pdf
[1]
Signed-off-by: Max Hsu
---
arch/riscv/include/asm/hwcap.h | 1 +
arch/riscv/kernel/cpufeature.c | 1 +
2
The mcontext/hcontext/scontext CSRs are optional in the Sdtrig extension,
to prevent RW operations to the missing CSRs, which will cause
illegal instructions.
As a solution, we have proposed the dt format for these CSRs.
Signed-off-by: Max Hsu
---
As riscv-debug-spec [1] Chapter 5 introduce Sdtrig extension.
Add an entry for the Sdtrig extension to the riscv,isa-extensions property.
Link:
https://github.com/riscv/riscv-debug-spec/releases/download/ar20231208/riscv-debug-stable.pdf
[1]
Signed-off-by: Max Hsu
---
: 317c7bc0ef035d8ebfc3e55c5dde0566fd5fb171
change-id: 20240329-dev-maxh-lin-452-6-9-c6209e6db67f
Best regards,
--
Max Hsu
* Shuah Khan wrote:
> On 3/27/24 05:17, Muhammad Usama Anjum wrote:
> > Skip instead of failing when prerequisite conditions aren't fulfilled,
> > such as invalid xstate values etc. This patch would make the tests show
> > as skip when run by:
> >make -C tools/testing/selftests/
On Thu, Mar 28, 2024 at 09:44:36PM -0700, Deepak Gupta wrote:
> Adds description in dt-bindings (extensions.yaml)
>
> This patch adds support for detecting zicfiss and zicfilp. zicfiss and zicfilp
> stands for unprivleged integer spec extension for shadow stack and branch
> tracking on indirect
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