On 18/03/2025 19:54, Peter Xu wrote:
> On Tue, Mar 18, 2025 at 05:43:39PM +0000, Ryan Roberts wrote:
>> $half_ufd_size_MB is supposed to be half of the available hugetlb memory
>> expressed in MB. But previously it was calculated in pages since
>> $freepgs is the number of f
ugetlb mem size
calculation")
Signed-off-by: Ryan Roberts
---
tools/testing/selftests/mm/run_vmtests.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/mm/run_vmtests.sh
b/tools/testing/selftests/mm/run_vmtests.sh
index da7e26668103..14fa9d40d574 100
ge size
because MAX_PAGECACHE_ORDER is too small for 512M folio size (I think).
Signed-off-by: Ryan Roberts
---
tools/testing/selftests/mm/split_huge_page_test.c | 11 +++
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/mm/split_huge_page_test.c
b/tools/testi
nr_pages=0 for 64K base pages. This doesn't end well.
So let's make the 32M size a floor and also ensure that we have at least
2 pages given the PMD size. With this change, the tests pass on arm64
64K base page size configuration.
Signed-off-by: Ryan Roberts
---
tools/testing/selftests/mm
On 08/01/2025 04:56, Andrew Morton wrote:
> On Tue, 7 Jan 2025 14:25:53 +0000 Ryan Roberts wrote:
>
>> After commit b1f202060afe ("mm: remap unused subpages to shared zeropage
>> when splitting isolated thp"), cow test cases involving swapping out
>> THPs via m
On 07/01/2025 14:48, Lorenzo Stoakes wrote:
> On Tue, Jan 07, 2025 at 02:29:35PM +0000, Ryan Roberts wrote:
>> The recently introduced guard-pages mm selftest uses the
>> process_madvise() syscall, a wrapper for which was added to glibc v2.36.
>> For those of us stuck with old
have the wrapper.
To workaround the issue, let's introduce our own static
process_madvise() wrapper that uses glibc's syscall() helper.
While we are at it, add the guard-page test suite to run_vmtests.sh so
that it can be automatically run by CI systems.
Signed-off-by: Ryan Roberts
---
d replaces the
pages which are wholly zero with the zero page. These cow test cases
were getting caught up in this.
So let's avoid that by filling the contents of all allocated memory with
a non-zero value. With this in place, the tests are passing again.
Signed-off-by: Ryan Roberts
---
Ap
On 17/07/2024 13:11, Dev Jain wrote:
>
> On 7/17/24 17:27, Ryan Roberts wrote:
>> On 17/07/2024 12:10, Dev Jain wrote:
>>> Post my improvement of the test:
>>> https://lore.kernel.org/all/20240522070435.773918-3-dev.j...@arm.com/
>>> The test begins t
On 17/07/2024 12:10, Dev Jain wrote:
> Post my improvement of the test:
> https://lore.kernel.org/all/20240522070435.773918-3-dev.j...@arm.com/
> The test begins to fail on 4k and 16k pages, on non-LPA2 systems. To
> reduce noise in the CI systems, let us skip the test when higher address
> space i
On 04/07/2024 04:04, John Hubbard wrote:
> Current practice in the selftests Makefiles is to use $(LLVM) as a way
> to decide if clang is being used as the compiler (and/or the linker
> front end). Unfortunately, this does not cover all of the use cases:
>
> 1) CC could have been set within selfte
On 21/06/2024 08:47, Barry Song wrote:
> On Fri, Jun 21, 2024 at 7:25 PM Ryan Roberts wrote:
>>
>> On 20/06/2024 12:34, David Hildenbrand wrote:
>>> On 20.06.24 11:04, Ryan Roberts wrote:
>>>> On 20/06/2024 01:26, Barry Song wrote:
>>>>> From: Ba
On 21/06/2024 00:34, Chris Li wrote:
>> + * thp_swap_allocator_test
>> + *
>> + * The purpose of this test program is helping check if THP swpout
>> + * can correctly get swap slots to swap out as a whole instead of
>> + * being split. It randomly releases swap entries through madvise
>> + * DONTN
On 20/06/2024 12:34, David Hildenbrand wrote:
> On 20.06.24 11:04, Ryan Roberts wrote:
>> On 20/06/2024 01:26, Barry Song wrote:
>>> From: Barry Song
>>>
>>> Both Ryan and Chris have been utilizing the small test program to aid
>>> in debugging and
On 20/06/2024 01:26, Barry Song wrote:
> From: Barry Song
>
> Both Ryan and Chris have been utilizing the small test program to aid
> in debugging and identifying issues with swap entry allocation. While
> a real or intricate workload might be more suitable for assessing the
> correctness and eff
On 04/06/2024 05:55, John Hubbard wrote:
> On 6/3/24 3:47 PM, Nathan Chancellor wrote:
>> On Mon, Jun 03, 2024 at 04:32:30PM +0100, Mark Brown wrote:
>>> On Fri, May 31, 2024 at 11:37:50AM -0700, John Hubbard wrote:
The kselftests may be built in a couple different ways:
make LLVM=1
ing.
>
> Fixes: 4838cf70e539 ("selftests/mm: map_fixed_noreplace: conform test to TAP
> format output")
> Signed-off-by: Mark Brown
Reviewed-by: Ryan Roberts
> ---
> tools/testing/selftests/mm/map_fixed_noreplace.c | 24
>
> 1 file changed,
On 10/05/2024 19:22, John Hubbard wrote:
> On 5/10/24 10:56 AM, John Hubbard wrote:
>> On 5/10/24 4:52 AM, Ryan Roberts wrote:
>>> On 04/05/2024 05:43, John Hubbard wrote:
>> ...
>>> It just occured to me that the bug report I was fixing with my attempt was
&g
selftests/lib.mk facilities for tracking local header
> file dependencies: add them to LOCAL_HDRS, leaving only the .c files to
> be passed to the compiler.
>
> Cc: Ryan Roberts
> Signed-off-by: John Hubbard
> ---
> tools/testing/selftests/openat2/Makefile | 14
ument name to test->func(), in order to address another
> warning from clang.
>
> Cc: Ryan Roberts
> Signed-off-by: John Hubbard
Reviewed-by: Ryan Roberts
> ---
> tools/testing/selftests/mqueue/mq_perf_tests.c | 15 ---
> 1 file changed, 8 inserti
On 07/05/2024 18:04, John Hubbard wrote:
> On 5/7/24 12:54 AM, Ryan Roberts wrote:
>> On 05/05/2024 23:13, John Hubbard wrote:
> ...
>>> diff --git a/tools/testing/selftests/mqueue/mq_perf_tests.c
>>> b/tools/testing/selftests/mqueue/mq_perf_tests.c
>>>
On 07/05/2024 17:47, John Hubbard wrote:
> On 5/7/24 9:34 AM, Ryan Roberts wrote:
>> On 07/05/2024 17:19, John Hubbard wrote:
>>> On 5/7/24 12:45 AM, Ryan Roberts wrote:
>>>> On 04/05/2024 05:43, John Hubbard wrote:
>>> ...
>>>> Hi John,
>&
On 07/05/2024 17:19, John Hubbard wrote:
> On 5/7/24 12:45 AM, Ryan Roberts wrote:
>> On 04/05/2024 05:43, John Hubbard wrote:
> ...
>> Hi John,
>>
>> I sent out a similar fix a couple of weeks ago, see [1]. I don't think it got
>> picked up thoug
On 05/05/2024 23:13, John Hubbard wrote:
> When building with clang, via:
>
> make LLVM=1 -C tools/testing/selftest
>
> ...clang warns about several cases of using a signed integer for the
> priority argument to mq_receive(3), which expects an unsigned int.
>
> Fix this by declaring the type
selftests/lib.mk facilities for tracking local header
> file dependencies: add them to LOCAL_HDRS, leaving only the .c files to
> be passed to the compiler.
>
> Cc: Ryan Roberts
> Signed-off-by: John Hubbard
Hi John,
I sent out a similar fix a couple of weeks ago, see [1]. I
On 02/05/2024 23:53, jef...@chromium.org wrote:
> From: Jeff Xu
>
> add include linux/mman.h to fix arm build
> fix a typo
>
> Signed-off-by: Jeff Xu
> Suggested-by: Ryan Roberts
I confirm this has fixed our issue. Thanks!
Tested-by: Ryan Roberts
Reviewed-by: Ryan Rob
On 02/05/2024 23:39, Jeff Xu wrote:
> On Thu, May 2, 2024 at 4:24 AM Ryan Roberts wrote:
>>
>> On 15/04/2024 17:35, jef...@chromium.org wrote:
>>> From: Jeff Xu
>>>
>>> selftest for memory sealing change in mmap() and mseal().
>>>
>>>
On 15/04/2024 17:35, jef...@chromium.org wrote:
> From: Jeff Xu
>
> selftest for memory sealing change in mmap() and mseal().
>
> Signed-off-by: Jeff Xu
> ---
> tools/testing/selftests/mm/.gitignore |1 +
> tools/testing/selftests/mm/Makefile |1 +
> tools/testing/selftests/mm/ms
Previously soft-dirty was unconditionally exiting with success, even if
one of it's testcases failed. Let's fix that so that failure can be
reported to automated systems properly.
Reviewed-by: Muhammad Usama Anjum
Reviewed-by: David Hildenbrand
Signed-off-by: Ryan Roberts
---
Appl
On 23/04/2024 09:44, Muhammad Usama Anjum wrote:
> On 4/23/24 1:24 PM, Ryan Roberts wrote:
>> On 22/04/2024 10:33, David Hildenbrand wrote:
>>> On 19.04.24 09:43, Ryan Roberts wrote:
>>>> Previously soft-dirty was unconditionally exiting with success, even if
>
On 23/04/2024 22:02, David Hildenbrand wrote:
>>>
>>> Shivansh, do you speak for CRIU? Are you able to comment on whether CRIU
>>> supports checkpointing an app that uses uffd?
>>
>> I do not speak for CRIU - I'm just a user (and hopefully a future
>> contributor), but not a maintainer or owner. I
On 19/04/2024 18:12, David Hildenbrand wrote:
> On 19.04.24 18:30, Mike Rapoport wrote:
>> On Fri, Apr 19, 2024 at 11:45:14AM +0200, David Hildenbrand wrote:
>>> On 19.04.24 10:33, Shivansh Vij wrote:
>>>>> On 19/04/2024 08:43, Ryan Roberts wrote:
>>>>&
On 22/04/2024 10:33, David Hildenbrand wrote:
> On 19.04.24 09:43, Ryan Roberts wrote:
>> Previously soft-dirty was unconditionally exiting with success, even if
>> one of it's testcases failed. Let's fix that so that failure can be
>> reported to automated system
On 19/04/2024 08:43, Ryan Roberts wrote:
> Hi All,
>
> This series adds uffd write-protect and soft-dirty tracking support for
> arm64. I
> consider the soft-dirty support (patches 3 and 4) as RFC - see rationale
> below.
>
> Previous attempts to add these features
Previously soft-dirty was unconditionally exiting with success, even if
one of it's testcases failed. Let's fix that so that failure can be
reported to automated systems properly.
Signed-off-by: Ryan Roberts
---
tools/testing/selftests/mm/soft-dirty.c | 2 +-
1 file changed, 1 inser
Let's use the newly-free PTE SW bit (58) to add support for uffd-wp.
The standard handlers are implemented for set/test/clear for both pte
and pmd. Additionally we must also track the uffd-wp state as a pte swp
bit, so use a free swap entry pte bit (3).
Signed-off-by: Ryan Roberts
---
Now that arm64 supports soft-dirty tracking lets enable the tests, which
were previously disabled for arm64 to reduce noise.
This reverts commit f6dd4e223d87 ("selftests/mm: skip soft-dirty tests
on arm64").
Signed-off-by: Ryan Roberts
---
tools/testing/selftests/mm/Makefile
t for
live migration.
Link:
https://lore.kernel.org/linux-arm-kernel/mw4pr12mb687563efb56373e8d55ddeabb9...@mw4pr12mb6875.namprd12.prod.outlook.com/
Signed-off-by: Ryan Roberts
---
arch/arm64/Kconfig| 1 +
arch/arm64/include/asm/pgtable-prot.h | 8 +
arch/arm64/includ
x27;s move PMD_PRESENT_INVALID to bit 60.
In the end, this frees up bit 58 for future use as a proper SW bit (e.g.
soft-dirty or uffd-wp).
Signed-off-by: Ryan Roberts
---
arch/arm64/include/asm/pgtable-prot.h | 4 ++--
arch/arm64/include/asm/pgtable.h | 16 +---
2 files changed, 11 insert
.@mw4pr12mb6875.namprd12.prod.outlook.com/
Thanks,
Ryan
Ryan Roberts (5):
arm64/mm: Move PTE_PROT_NONE and PMD_PRESENT_INVALID
arm64/mm: Add uffd write-protect support
arm64/mm: Add soft-dirty page tracking support
selftests/mm: Enable soft-dirty tests on arm64
selftests/mm: soft-di
s: link libasan statically for tests with
-fsanitize=address")
Reported-by: kernel test robot
Closes: https://lore.kernel.org/r/202404141807.lgsqxpy5-...@intel.com/
Suggested-by: Arnd Bergmann
Signed-off-by: Ryan Roberts
---
Applies on v6.9-rc4.
Thanks,
Ryan
tools/testing/selftests/fc
On 01/03/2024 14:00, Zi Yan wrote:
> On 1 Mar 2024, at 4:51, Aishwarya TCV wrote:
>
>> On 26/02/2024 20:55, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> It is used to test split_huge_page_to_list_to_order for pagecache THPs.
>>> Also add test cases for split_huge_page_to_list_to_order via both
>>> debu
On 01/03/2024 13:53, Zi Yan wrote:
> On 1 Mar 2024, at 8:09, Ryan Roberts wrote:
>
>> On 01/03/2024 12:52, Zi Yan wrote:
>>> On 1 Mar 2024, at 5:33, Ryan Roberts wrote:
>>>
>>>> On 01/03/2024 09:51, Aishwarya TCV wrote:
>>>>>
>>&
On 01/03/2024 12:52, Zi Yan wrote:
> On 1 Mar 2024, at 5:33, Ryan Roberts wrote:
>
>> On 01/03/2024 09:51, Aishwarya TCV wrote:
>>>
>>>
>>> On 26/02/2024 20:55, Zi Yan wrote:
>>>> From: Zi Yan
>>>>
>>>> It is used to t
On 01/03/2024 09:51, Aishwarya TCV wrote:
>
>
> On 26/02/2024 20:55, Zi Yan wrote:
>> From: Zi Yan
>>
>> It is used to test split_huge_page_to_list_to_order for pagecache THPs.
>> Also add test cases for split_huge_page_to_list_to_order via both
>> debugfs.
>>
>> Signed-off-by: Zi Yan
>> ---
>>
On 28/02/2024 15:42, Zi Yan wrote:
> On 28 Feb 2024, at 3:23, Ryan Roberts wrote:
>
>> Hi Zi,
>>
>>
>> On 26/02/2024 20:55, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> To split a THP to any lower order pages, we need to reform THPs on
>>&
Hi Zi,
On 26/02/2024 20:55, Zi Yan wrote:
> From: Zi Yan
>
> To split a THP to any lower order pages, we need to reform THPs on
> subpages at given order and add page refcount based on the new page
> order. Also we need to reinitialize page_deferred_list after removing
> the page from the split
On 14/02/2024 17:19, Ryan Roberts wrote:
> On 02/02/2024 11:31, Muhammad Usama Anjum wrote:
>> Conform the layout, informational and status messages to TAP. No
>> functional change is intended other than the layout of output messages.
>>
>> Signed-off-by: Muhammad Us
On 02/02/2024 11:31, Muhammad Usama Anjum wrote:
> Conform the layout, informational and status messages to TAP. No
> functional change is intended other than the layout of output messages.
>
> Signed-off-by: Muhammad Usama Anjum
> ---
> tools/testing/selftests/mm/khugepaged.c | 3 +-
> tool
On 14/02/2024 16:28, Zi Yan wrote:
> On 14 Feb 2024, at 11:22, Ryan Roberts wrote:
>
>> On 14/02/2024 16:11, Zi Yan wrote:
>>> On 14 Feb 2024, at 5:38, Ryan Roberts wrote:
>>>
>>>> On 13/02/2024 21:55, Zi Yan wrote:
>>>>> From: Zi Yan
>
On 14/02/2024 16:19, Zi Yan wrote:
> On 14 Feb 2024, at 5:43, Ryan Roberts wrote:
>
>> On 13/02/2024 21:55, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> To minimize the number of pages after a huge page truncation, we do not
>>> need to split it all th
On 14/02/2024 16:11, Zi Yan wrote:
> On 14 Feb 2024, at 5:38, Ryan Roberts wrote:
>
>> On 13/02/2024 21:55, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> To split a THP to any lower order (except order-1) pages, we need to
>>> reform THPs on subpages a
On 13/02/2024 22:31, Zi Yan wrote:
> On 13 Feb 2024, at 17:21, David Hildenbrand wrote:
>
>> On 13.02.24 22:55, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> Hi all,
>>>
>>> File folio supports any order and multi-size THP is upstreamed[1], so both
>>> file and anonymous folios can be >0 order. Currentl
On 13/02/2024 21:55, Zi Yan wrote:
> From: Zi Yan
>
> To minimize the number of pages after a huge page truncation, we do not
> need to split it all the way down to order-0. The huge page has at most
> three parts, the part before offset, the part to be truncated, the part
> remaining at the end.
On 13/02/2024 21:55, Zi Yan wrote:
> From: Zi Yan
>
> To split a THP to any lower order (except order-1) pages, we need to
> reform THPs on subpages at given order and add page refcount based on the
> new page order. Also we need to reinitialize page_deferred_list after
> removing the page from t
On 12/02/2024 19:13, Mark Brown wrote:
> On Mon, Feb 12, 2024 at 08:32:58AM +0000, Ryan Roberts wrote:
>> On 10/02/2024 12:35, Mark Brown wrote:
>
>>> Ah, I was assuming that some of the suite ran usefully as non-root given
>>> that the only point of that sudo was
On 10/02/2024 12:35, Mark Brown wrote:
> On Sat, Feb 10, 2024 at 07:40:16AM +0000, Ryan Roberts wrote:
>> On 09/02/2024 20:21, Mark Brown wrote:
>
>>> When opening yama/ptrace_scope we unconditionally use sudo to ensure we
>>> are running as root, resulting in fa
On 09/02/2024 20:21, Mark Brown wrote:
> When opening yama/ptrace_scope we unconditionally use sudo to ensure we
> are running as root, resulting in failures if running in a minimal root
> filesystem where sudo is not installed. Since automated test systems will
> typically just run all of kselftes
On 01/02/2024 12:24, Muhammad Usama Anjum wrote:
> On 2/1/24 5:04 PM, Ryan Roberts wrote:
>> On 25/01/2024 15:46, Muhammad Usama Anjum wrote:
>>> Remove sudo as some test running environments may not have sudo
>>> available. Instead skip the test if root privileges aren&
On 25/01/2024 15:46, Muhammad Usama Anjum wrote:
> Add missing tests to run_vmtests.sh. The mm kselftests are run through
> run_vmtests.sh. If a test isn't present in this script, it'll not run
> with run_tests or `make -C tools/testing/selftests/mm run_tests`.
>
> Cc: R
On 25/01/2024 15:46, Muhammad Usama Anjum wrote:
> Remove sudo as some test running environments may not have sudo
> available. Instead skip the test if root privileges aren't available in
> the test.
>
> Signed-off-by: Muhammad Usama Anjum
> ---
> Changes since v1:
> - Added this patch in v2
>
On 23/01/2024 07:36, Muhammad Usama Anjum wrote:
> Add missing tests to run_vmtests.sh. The mm kselftests are run through
> run_vmtests.sh. If a test isn't present in this script, it'll not run
> with run_tests or `make -C tools/testing/selftests/mm run_tests`.
>
> Cc: R
On 23/01/2024 07:51, Muhammad Usama Anjum wrote:
> On 1/22/24 2:59 PM, Ryan Roberts wrote:
>>>>> +CATEGORY="hugetlb" run_test ./hugetlb-read-hwpoison
>>>>
>>>> The addition of this test causes 2 later tests to fail with ENOMEM. I
>>&g
es merging time test")
Cc: sta...@vger.kernel.org
Signed-off-by: Ryan Roberts
---
Applies on top of mm-unstable.
Thanks,
Ryan
tools/testing/selftests/mm/ksm_tests.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/mm/ksm_tests.c
b/tools/
On 22/01/2024 08:46, Muhammad Usama Anjum wrote:
> On 1/19/24 9:09 PM, Ryan Roberts wrote:
>> Hi Muhammad,
>>
>> Afraid this patch is causing a regression on our CI system when it turned up
>> in
>> linux-next today. Additionally, 2 of thetests you have add
Hi Muhammad,
Afraid this patch is causing a regression on our CI system when it turned up in
linux-next today. Additionally, 2 of thetests you have added are failing because
the scripts are not exported correctly...
On 16/01/2024 09:06, Muhammad Usama Anjum wrote:
> Add missing tests to run_vmtes
On 19/12/2023 00:55, John Hubbard wrote:
> On 12/18/23 16:51, John Hubbard wrote:
>> On 12/18/23 03:32, Ryan Roberts wrote:
>> ...
>>>> I should also point out that some of the subtests already attempt a TAP
>>>> output. So now we end up with TAP-within-TAP
On 16/12/2023 02:40, John Hubbard wrote:
> On 12/15/23 18:25, John Hubbard wrote:
>> On 12/15/23 06:28, Ryan Roberts wrote:
>> ...
>>> I've kept all the existing "pretty" output and results summary as is, it
>>> just
>>> gets a
On 15/12/2023 14:08, Mark Brown wrote:
> On Fri, Dec 15, 2023 at 01:58:45PM +0000, Ryan Roberts wrote:
>> On 15/12/2023 13:54, Mark Brown wrote:
>
>>> What I did for ftrace which had a similar situation was make a wrapper
>>> script which invokes the test
On 15/12/2023 13:54, Mark Brown wrote:
> On Thu, Dec 14, 2023 at 04:24:34PM +0000, Ryan Roberts wrote:
>> When running tests on a CI system (e.g. LAVA) it is useful to output
>> test results in TAP format so that the CI can parse the fine-grained
>> results to show regres
I've implemented an opt-out
option (-n), which will revert to the existing output format.
Future changes to this file should be aware of 2 new conventions:
- output that is part of the TAP reporting is piped through tap_output
- general output is piped through tap_prefix
Signed-off-by: Rya
On 04/12/2023 04:09, Suren Baghdasaryan wrote:
> On Sat, Dec 2, 2023 at 2:11 AM David Hildenbrand wrote:
>>
>> On 02.12.23 09:04, Ryan Roberts wrote:
>>> On 01/12/2023 20:47, David Hildenbrand wrote:
>>>> On 01.12.23 10:29, Ryan Roberts wrote:
>>>>
On 01/12/2023 20:47, David Hildenbrand wrote:
> On 01.12.23 10:29, Ryan Roberts wrote:
>> On 21/11/2023 17:16, Suren Baghdasaryan wrote:
>>> Add tests for new UFFDIO_MOVE ioctl which uses uffd to move source
>>> into destination buffer while checking the contents of bot
On 01/12/2023 16:26, Suren Baghdasaryan wrote:
> On Fri, Dec 1, 2023 at 1:29 AM Ryan Roberts wrote:
>>
>> On 21/11/2023 17:16, Suren Baghdasaryan wrote:
>>> Add tests for new UFFDIO_MOVE ioctl which uses uffd to move source
>>> into destination buffer while ch
On 21/11/2023 17:16, Suren Baghdasaryan wrote:
> Add tests for new UFFDIO_MOVE ioctl which uses uffd to move source
> into destination buffer while checking the contents of both after
> the move. After the operation the content of the destination buffer
> should match the original source buffer's c
On 03/11/2023 13:59, Breno Leitao wrote:
> Hello Ryan,
>
> On Thu, Nov 02, 2023 at 12:29:54PM +0000, Ryan Roberts wrote:
>> On 02/11/2023 12:24, Ryan Roberts wrote:
>>> On 05/10/2023 17:39, Breno Leitao wrote:
>>>> Create a selftest that exercises the race
On 02/11/2023 12:24, Ryan Roberts wrote:
> Hi Breno,
>
>
> On 05/10/2023 17:39, Breno Leitao wrote:
>> Create a selftest that exercises the race between page faults and
>> madvise(MADV_DONTNEED) in the same huge page. Do it by running two
>> threads that tou
Hi Breno,
On 05/10/2023 17:39, Breno Leitao wrote:
> Create a selftest that exercises the race between page faults and
> madvise(MADV_DONTNEED) in the same huge page. Do it by running two
> threads that touches the huge page and madvise(MADV_DONTNEED) at the same
> time.
>
> In case of a SIGBUS
On 02/11/2023 11:49, Muhammad Usama Anjum wrote:
> On 11/2/23 4:45 PM, Ryan Roberts wrote:
>> On 21/08/2023 15:15, Muhammad Usama Anjum wrote:
>>
>> [...]
>>
>>> +
>>> +
>>> +int init_uffd(void)
>>> +{
>>> + struct uffdio_
On 21/08/2023 15:15, Muhammad Usama Anjum wrote:
[...]
> +
> +
> +int init_uffd(void)
> +{
> + struct uffdio_api uffdio_api;
> +
> + uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK |
> UFFD_USER_MODE_ONLY);
> + if (uffd == -1)
> + ksft_exit_fail_msg("uffd syscall
On 07/07/2023 22:55, Axel Rasmussen wrote:
> The test is pretty basic, and exercises UFFDIO_POISON straightforwardly.
> We register a region with userfaultfd, in missing fault mode. For each
> fault, we either UFFDIO_COPY a zeroed page (odd pages) or UFFDIO_POISON
> (even pages). We do this mix to
On 12/09/2023 13:16, Ryan Roberts wrote:
> On 12/09/2023 07:17, kernel test robot wrote:
>>
>>
>> Hello,
>>
>> kernel test robot noticed "kernel-selftests.openat2.resolve_test.fail" on:
>>
>> commit: 58e2847ad2e6322a25dedf8b4549ff924baf
xit=1
Signed-off-by: Ryan Roberts
Fixes: 58e2847ad2e6 ("selftests: line buffer test program's stdout")
Reported-by: kernel test robot
Closes:
https://lore.kernel.org/oe-lkp/202309121342.97e2f008-oliver.s...@intel.com
---
tools/testing/selftests/fchmodat2/Makefile | 2 +-
tools/testi
On 12/09/2023 07:17, kernel test robot wrote:
>
>
> Hello,
>
> kernel test robot noticed "kernel-selftests.openat2.resolve_test.fail" on:
>
> commit: 58e2847ad2e6322a25dedf8b4549ff924baf8395 ("selftests: line buffer
> test program's stdout")
> https://git.kernel.org/cgit/linux/kernel/git/torva
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