Message-ID: <026dac5d-a478-4e3d-a492-5d9bfcef818c@lucifer.local>
Date: Wed, 19 Nov 2025 13:37:26 +0000
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Mark Brown <broonie@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
        Jonathan Corbet <corbet@....net>, David Hildenbrand <david@...hat.com>,
        "Liam R . Howlett" <Liam.Howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, Mike Rapoport <rppt@...nel.org>,
        Suren Baghdasaryan <surenb@...gle.com>, Michal Hocko <mhocko@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Jann Horn <jannh@...gle.com>, Pedro Falcato <pfalcato@...e.de>,
        Zi Yan <ziy@...dia.com>, Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Nico Pache <npache@...hat.com>, Ryan Roberts <ryan.roberts@....com>,
        Dev Jain <dev.jain@....com>, Barry Song <baohua@...nel.org>,
        Lance Yang <lance.yang@...ux.dev>, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-mm@...ck.org, linux-trace-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, Andrei Vagin <avagin@...il.com>,
        Aishwarya.TCV@....com
Subject: Re: [PATCH v3 3/8] mm: implement sticky VMA flags

On Wed, Nov 19, 2025 at 12:55:29PM +0000, Mark Brown wrote:
> On Fri, Nov 07, 2025 at 04:11:48PM +0000, Lorenzo Stoakes wrote:
> > It is useful to be able to designate that certain flags are 'sticky', that
> > is, if two VMAs are merged one with a flag of this nature and one without,
> > the merged VMA sets this flag.
>
> I'm seeing a regression in the futex selftests on arm64:
>
> # TAP version 13
> # 1..1
> # # Starting 1 tests from 1 test cases.
> # #  RUN           global.futex_numa_mpol ...
> # # Regular test
> # # Mis-aligned futex
> # # Memory out of range
> # Bail out! futex2_wake(64, 0x86) should fail, but didn't
> # # Planned tests != run tests (1 != 0)
> # # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0
> # # futex_numa_mpol: Test failed
> # #          FAIL  global.futex_numa_mpol
> # not ok 1 global.futex_numa_mpol
> # # FAILED: 0 / 1 tests passed.
>
> which bisect to one of the fixup commits on top of this.  I've not done
> any real analysis on this but it's a test that's generally very stable
> so I'd be surprised if it's not a real failure.

Yeah the fixups are known-buggy, apologies (non-fixups are buggy also but in a
way that'll be less visible from tests :). I sent a v4 which resolves
everything, see [0].

[0]: https://lore.kernel.org/all/cover.1763460113.git.lorenzo.stoakes@oracle.com/

This should land in linux-next relatively soon if not already there.

Cheers, Lorenzo

>
> Full log:
>
>    https://lava.sirena.org.uk/scheduler/job/2106243#L11474
>
> There is also a bisection for the mm mkdirty selftest which runs into
> the same patch on at least Raspberry Pi 4:
>
> # # -----------------
> # # running ./mkdirty
> # # -----------------
> # # # [INFO] detected THP size: 2048 KiB
> # # TAP version 13
> # # 1..6
> # # # [INFO] PTRACE write access
> # # ok 1 SIGSEGV generated, page not modified
> # # # [INFO] PTRACE write access to THP
> # # ok 2 SIGSEGV generated, page not modified
> # # # [INFO] Page migration
> # # not ok 3 SIGSEGV generated, page not modified
> # # # [INFO] Page migration of THP
> # # not ok 4 SIGSEGV generated, page not modified
> # # # [INFO] PTE-mapping a THP
> # # not ok 5 SIGSEGV generated, page not modified
> # # # [INFO] UFFDIO_COPY
> # # ok 6 # SKIP __NR_userfaultfd failed
> # # Bail out! 3 out of 6 tests failed
> # # # 1 skipped test(s) detected. Consider enabling relevant config options to improve coverage.
> # # # Totals: pass:2 fail:3 xfail:0 xpass:0 skip:1 error:0
> # # [FAIL]
> # not ok 61 mkdirty # exit=1
>
> Full log for that:
>
>    https://lava.sirena.org.uk/scheduler/job/2106236#L6939
>
> and I'm also seeing some LTP failures going into these commits that I'll
> report separately.
>
> bisect log for the futex test:
>
> # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119
> # good: [ef96b7dd050abd62905588c41ffb397e0c9598c7] Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git
> # good: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] MAINTAINERS: adjust file entry in RISC-V MICROCHIP SUPPORT
> # good: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] regulator: renesas-usb-vbus-regulator: Remove unused headers
> # good: [96498e804cb6629e02747336a0a33e4955449732] spi: davinci: remove platform data header
> # good: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] ASoC: ux500: mop500_ab8500: convert to snd_soc_dapm_xxx()
> # good: [9e510e677090bb794b46348b10e1c8038286e00a] spi: aspeed: Add support for the AST2700 SPI controller
> # good: [118eb2cb97b8fc0d515bb0449495959247db58f0] spi: bcm63xx: drop wrong casts in probe()
> # good: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] ASoC: Intel: avs: Honor NHLT override when setting up a path
> # good: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] MAINTAINERS: refer to trivial-codec.yaml in relevant sections
> # good: [059f545832be85d29ac9ccc416a16f647aa78485] spi: add support for microchip "soft" spi controller
> # good: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] spi: spi-cadence: supports transmission with bits_per_word of 16 and 32
> # good: [e65b871c9b5af9265aefc5b8cd34993586d93aab] ASoC: codecs: pm4125: Remove irq_chip on component unbind
> # good: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] firmware: cs_dsp: fix kernel-doc warnings in a header file
> # good: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] ASoC: codecs: lpass-rx-macro: add SM6115 compatible
> # good: [123cd174a3782307787268adf45f22de4d290128] ASoC: Intel: atom: Replace strcpy() with strscpy()
> # good: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] spi: dt-bindings: nuvoton,npcm-pspi: Convert to DT schema
> # good: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] ASoC: Intel: boards: fix HDMI playback lookup when HDMI-In capture used
> # good: [32172cf3cb543a04c41a1677c97a38e60cad05b6] ASoC: cs35l56: Allow restoring factory calibration through ALSA control
> # good: [b3a5302484033331af37569f7277d00131694b57] ASoC: Intel: sof_rt5682: Add quirk override support
> # good: [873bc94689d832878befbcadc10b6ad5bb4e0027] ASoC: Intel: sof_sdw: add codec speaker support for the SKU
> # good: [772ada50282b0c80343c8989147db816961f571d] ASoC: cs35l56: Alter error codes for calibration routine
> # good: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] regmap: sdw-mbq: Reorder regmap_mbq_context struct for better packing
> # good: [fb1ebb10468da414d57153ddebaab29c38ef1a78] regulator: core: disable supply if enabling main regulator fails
> # good: [2089f086303b773e181567fd8d5df3038bd85937] regulator: mt6363: Remove unneeded semicolon
> # good: [6951be397ca8b8b167c9f99b5a11c541148c38cb] ASoC: codecs: pm4125: remove duplicate code
> # good: [4e92abd0a11b91af3742197a9ca962c3c00d0948] spi: imx: add i.MX51 ECSPI target mode support
> # good: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] spi: fsl-qspi: support the SpacemiT K1 SoC
> # good: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] spi: imx: remove CLK calculation and check for target mode
> # good: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] regulator: pf9453: Fix kernel doc for mux_poll()
> # good: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] ASoC: SDCA: support Q7.8 volume format
> # good: [3c36965df80801344850388592e95033eceea05b] regulator: Add support for MediaTek MT6363 SPMI PMIC Regulators
> # good: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] spi: aspeed: Use devm_iounmap() to unmap devm_ioremap() memory
> # good: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] ASoC: dt-bindings: ti,pcm1862: convert to dtschema
> # good: [655079ac8a7721ac215a0596e3f33b740e01144a] ASoC: qcom: q6asm: Use guard() for spin locks
> # good: [c4e68959af66df525d71db619ffe44af9178bb22] ASoC: dt-bindings: ti,tas2781: Add TAS5822 support
> # good: [380fd29d57abe6679d87ec56babe65ddc5873a37] spi: tegra210-quad: Check hardware status on timeout
> # good: [af9c8092d84244ca54ffb590435735f788e7a170] regmap: i3c: Use ARRAY_SIZE()
> # good: [84194c66aaf78fed150edb217b9f341518b1cba2] ASoC: codecs: aw88261: pass pointer directly instead of passing the address
> # good: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] regulator: Small cleanup in of_get_regulation_constraints()
> # good: [2ecc8c089802e033d2e5204d21a9f467e2517df9] regulator: pf9453: remove unused I2C_LT register
> # good: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] regcache: maple: Split ->populate() from ->init()
> # good: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] ASoC: soc-core: check ops & auto_selectable_formats in snd_soc_dai_get_fmt() to prevent dereference error
> # good: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] ASoC: max98090/91: fixing the stream index
> # good: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] spi: tle62x0: Add newline to sysfs attribute output
> # good: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] ASoC: codec: wm8400: replace printk() calls with dev_*() device aware logging
> # good: [20bcda681f8597e86070a4b3b12d1e4f541865d3] ASoC: codecs: va-macro: fix revision checking
> # good: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] ASoC: cs4271: Add support for the external mclk
> # good: [28039efa4d8e8bbf98b066133a906bd4e307d496] MAINTAINERS: remove obsolete file entry in DIALOG SEMICONDUCTOR DRIVERS
> # good: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] regmap: warn users about uninitialized flat cache
> # good: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] ASoC: qcom: sc7280: make use of common helpers
> # good: [66fecfa91deb536a12ddf3d878a99590d7900277] ASoC: spacemit: use `depends on` instead of `select`
> # good: [f034c16a4663eaf3198dc18b201ba50533fb5b81] ASoC: spacemit: add failure check for spacemit_i2s_init_dai()
> # good: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] ASoC: sun4i-spdif: Support SPDIF output on A523 family
> # good: [ef042df96d0e1089764f39ede61bc8f140a4be00] ASoC: SDCA: Add HID button IRQ
> # good: [4c33cef58965eb655a0ac8e243aa323581ec025f] regulator: pca9450: link regulator inputs to supply groups
> # good: [01313661b248c5ba586acae09bff57077dbec0a5] regulator: Let raspberrypi drivers depend on ARM
> # good: [e7434adf0c53a84d548226304cdb41c8818da1cb] ASoC: cs530x: Add SPI bus support for cs530x parts
> # good: [77a58ba7c64ccca20616aa03599766ccb0d1a330] spi: spi-mem: Trace exec_op
> # good: [4795375d8aa072e9aacb0b278e6203c6ca41816a] ASoC: cs-amp-lib-test: Add test cases for cs_amp_set_efi_calibration_data()
> # good: [d29479abaded34b2b1dab2e17efe96a65eba3d61] ASoC: renesas: fsi: Constify struct fsi_stream_handler
> # good: [e973dfe9259095fb509ab12658c68d46f0e439d7] ASoC: qcom: sm8250: add qrb2210-sndcard compatible string
> # good: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] ASoC: sdw_utils: add name_prefix for rt1321 part id
> # good: [2528c15f314ece50218d1273654f630d74109583] ASoC: max98090/91: adding DAPM routing for digital output for max98091
> # good: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] regulator: rpmh-regulator: Add RPMH regulator support for PMR735D
> # good: [310bf433c01f78e0756fd5056a43118a2f77318c] ASoC: max98090/91: fixing a space
> # good: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] spi: spi-qpic-snand: make qcom_spi_ecc_engine_ops_pipelined const
> # good: [638bae3fb225a708dc67db613af62f6d14c4eff4] ASoC: max98090/91: added DAPM widget for digital output for max98091
> # good: [ecba655bf54a661ffe078856cd8dbc898270e4b5] ASoC: fsl_aud2htx: add IEC958_SUBFRAME_LE format in supported list
> # good: [7e1906643a7374529af74b013bba35e4fa4e6ffc] ASoC: codecs: va-macro: Clean up on error path in probe()
> # good: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] ASoC: soc.h: remove snd_soc_kcontrol_component()
> # good: [6658472a3e2de08197acfe099ba71ee0e2505ecf] ASoC: amd: amd_sdw: Propagate the PCI subsystem Vendor and Device IDs
> # good: [fce217449075d59b29052b8cdac567f0f3e22641] ASoC: spacemit: add i2s support for K1 SoC
> # good: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] spi: aspeed: Fix an IS_ERR() vs NULL bug in probe()
> # good: [0743acf746a81e0460a56fd5ff847d97fa7eb370] spi: airoha: buffer must be 0xff-ed before writing
> # good: [d77daa49085b067137d0adbe3263f75a7ee13a1b] spi: aspeed: fix spelling mistake "triming" -> "trimming"
> # good: [15afe57a874eaf104bfbb61ec598fa31627f7b19] ASoC: dt-bindings: qcom: Add Kaanapali LPASS macro codecs
> # good: [1e570e77392f43a3cdab2849d1f81535f8a033e2] ASoC: mxs-saif: support usage with simple-audio-card
> # good: [fb25114cd760c13cf177d9ac37837fafcc9657b5] regulator: sy7636a: add gpios and input regulator
> # good: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] ASoC: codecs: rt5670: use SOC_VALUE_ENUM_SINGLE_DECL for DAC2 L/R MX-1B
> # good: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] regulator: rpmh-regulator: Add RPMH regulator support for Glymur
> # good: [433e294c3c5b5d2020085a0e36c1cb47b694690a] regulator: core: forward undervoltage events downstream by default
> # good: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] ASoC: replace use of system_wq with system_dfl_wq
> # good: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] x86/module: Improve relocation error messages
> # good: [c2d420796a427dda71a2400909864e7f8e037fd4] elfnote: Change ELFNOTE() to use __UNIQUE_ID()
> # good: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy
> # good: [64d87ccfae3326a9561fe41dc6073064a083e0df] spi: aspeed: Only map necessary address window region
> # good: [4d410ba9aa275e7990a270f63ce436990ace1bea] dt-bindings: sound: Update ADMAIF bindings for tegra264
> # good: [5e537031f322d55315cd384398b726a9a0748d47] ASoC: codecs: Fix the error of excessive semicolons
> # good: [4412ab501677606436e5c49e41151a1e6eac7ac0] spi: dt-bindings: spi-qpic-snand: Add IPQ5332 compatible
> # good: [9797329220a2c6622411eb9ecf6a35b24ce09d04] ASoC: sof-function-topology-lib: escalate the log when missing function topoplogy
> # good: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] spi: dw: add target mode support
> # good: [6277a486a7faaa6c87f4bf1d59a2de233a093248] regulator: dt-bindings: Convert Dialog DA9211 Regulators to DT schema
> # good: [b83fb1b14c06bdd765903ac852ba20a14e24f227] spi: offload: Add offset parameter
> git bisect start 'fe4d0dea039f2befb93f27569593ec209843b0f5' 'ef96b7dd050abd62905588c41ffb397e0c9598c7' 'bd79452b39c21599e2cff42e9fbeb182656b6f6a' '21e68bcb1b0c688c2d9ca0d457922febac650ac1' '96498e804cb6629e02747336a0a33e4955449732' '4422df6782eb7aa9725a3c09d9ba3c38ecc85df4' '9e510e677090bb794b46348b10e1c8038286e00a' '118eb2cb97b8fc0d515bb0449495959247db58f0' 'd5c8b7902a41625ea328b52c78ebe750fbf6fef7' '6402ddf3027d8975f135cf2b2014d6bbeb2d3436' '059f545832be85d29ac9ccc416a16f647aa78485' '4e00135b2dd1d7924a58bffa551b6ceb3bd836f2' 'e65b871c9b5af9265aefc5b8cd34993586d93aab' '8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860' '8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10' '123cd174a3782307787268adf45f22de4d290128' '1d562ba0aa7df81335bf96c02be77efe8d5bab87' '4d6e2211aeb932e096f673c88475016b1cc0f8ab' '32172cf3cb543a04c41a1677c97a38e60cad05b6' 'b3a5302484033331af37569f7277d00131694b57' '873bc94689d832878befbcadc10b6ad5bb4e0027' '772ada50282b0c80343c8989147db816961f571d' '6985defd1d832f1dd9d1977a6a2cc2cef7632704' 'fb1ebb10468da414d57153ddebaab29c38ef1a78' '2089f086303b773e181567fd8d5df3038bd85937' '6951be397ca8b8b167c9f99b5a11c541148c38cb' '4e92abd0a11b91af3742197a9ca962c3c00d0948' 'abc9a349b87ac0fd3ba8787ca00971b59c2e1257' '55d03b5b5bdd04daf9a35ce49db18d8bb488dffb' '6bd1ad97eb790570c167d4de4ca59fbc9c33722a' '1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69' '3c36965df80801344850388592e95033eceea05b' '2f538ef9f6f7c3d700c68536f21447dfc598f8c8' 'aa897ffc396b48cc39eee133b6b43175d0df9eb5' '655079ac8a7721ac215a0596e3f33b740e01144a' 'c4e68959af66df525d71db619ffe44af9178bb22' '380fd29d57abe6679d87ec56babe65ddc5873a37' 'af9c8092d84244ca54ffb590435735f788e7a170' '84194c66aaf78fed150edb217b9f341518b1cba2' '252abf2d07d33b1c70a59ba1c9395ba42bbd793e' '2ecc8c089802e033d2e5204d21a9f467e2517df9' 'ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc' 'e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0' 'f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce' 'ecd0de438c1f0ee86cf8f6d5047965a2a181444b' '6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3' '20bcda681f8597e86070a4b3b12d1e4f541865d3' 'cf6bf51b53252284bafc7377a4d8dbf10f048b4d' '28039efa4d8e8bbf98b066133a906bd4e307d496' 'e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8' '8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce' '66fecfa91deb536a12ddf3d878a99590d7900277' 'f034c16a4663eaf3198dc18b201ba50533fb5b81' '4a5ac6cd05a7e54f1585d7779464d6ed6272c134' 'ef042df96d0e1089764f39ede61bc8f140a4be00' '4c33cef58965eb655a0ac8e243aa323581ec025f' '01313661b248c5ba586acae09bff57077dbec0a5' 'e7434adf0c53a84d548226304cdb41c8818da1cb' '77a58ba7c64ccca20616aa03599766ccb0d1a330' '4795375d8aa072e9aacb0b278e6203c6ca41816a' 'd29479abaded34b2b1dab2e17efe96a65eba3d61' 'e973dfe9259095fb509ab12658c68d46f0e439d7' 'c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c' '2528c15f314ece50218d1273654f630d74109583' 'd054cc3a2ccfb19484f3b54d69b6e416832dc8f4' '310bf433c01f78e0756fd5056a43118a2f77318c' 'fd5ef3d69f8975bad16c437a337b5cb04c8217a2' '638bae3fb225a708dc67db613af62f6d14c4eff4' 'ecba655bf54a661ffe078856cd8dbc898270e4b5' '7e1906643a7374529af74b013bba35e4fa4e6ffc' 'd742ebcfe524dc54023f7c520d2ed2e4b7203c19' '6658472a3e2de08197acfe099ba71ee0e2505ecf' 'fce217449075d59b29052b8cdac567f0f3e22641' '0cc08c8130ac8f74419f99fe707dc193b7f79d86' '0743acf746a81e0460a56fd5ff847d97fa7eb370' 'd77daa49085b067137d0adbe3263f75a7ee13a1b' '15afe57a874eaf104bfbb61ec598fa31627f7b19' '1e570e77392f43a3cdab2849d1f81535f8a033e2' 'fb25114cd760c13cf177d9ac37837fafcc9657b5' '6621b0f118d500092f5f3d72ddddb22aeeb3c3a0' '65efe5404d151767653c7b7dd39bd2e7ad532c2d' '433e294c3c5b5d2020085a0e36c1cb47b694690a' '0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4' 'bf770d6d2097a52d87f4d9c88d0b05bd3998d7de' 'c2d420796a427dda71a2400909864e7f8e037fd4' '7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd' '64d87ccfae3326a9561fe41dc6073064a083e0df' '4d410ba9aa275e7990a270f63ce436990ace1bea' '5e537031f322d55315cd384398b726a9a0748d47' '4412ab501677606436e5c49e41151a1e6eac7ac0' '9797329220a2c6622411eb9ecf6a35b24ce09d04' 'fe8cc44dd173cde5788ab4e3730ac61f3d316d9c' '6277a486a7faaa6c87f4bf1d59a2de233a093248' 'b83fb1b14c06bdd765903ac852ba20a14e24f227'
> # test job: [bd79452b39c21599e2cff42e9fbeb182656b6f6a] https://lava.sirena.org.uk/scheduler/job/2104091
> # test job: [21e68bcb1b0c688c2d9ca0d457922febac650ac1] https://lava.sirena.org.uk/scheduler/job/2104499
> # test job: [96498e804cb6629e02747336a0a33e4955449732] https://lava.sirena.org.uk/scheduler/job/2099744
> # test job: [4422df6782eb7aa9725a3c09d9ba3c38ecc85df4] https://lava.sirena.org.uk/scheduler/job/2097747
> # test job: [9e510e677090bb794b46348b10e1c8038286e00a] https://lava.sirena.org.uk/scheduler/job/2095684
> # test job: [118eb2cb97b8fc0d515bb0449495959247db58f0] https://lava.sirena.org.uk/scheduler/job/2092525
> # test job: [d5c8b7902a41625ea328b52c78ebe750fbf6fef7] https://lava.sirena.org.uk/scheduler/job/2092722
> # test job: [6402ddf3027d8975f135cf2b2014d6bbeb2d3436] https://lava.sirena.org.uk/scheduler/job/2086597
> # test job: [059f545832be85d29ac9ccc416a16f647aa78485] https://lava.sirena.org.uk/scheduler/job/2086754
> # test job: [4e00135b2dd1d7924a58bffa551b6ceb3bd836f2] https://lava.sirena.org.uk/scheduler/job/2082525
> # test job: [e65b871c9b5af9265aefc5b8cd34993586d93aab] https://lava.sirena.org.uk/scheduler/job/2083134
> # test job: [8d63e85c5b50f1dbfa0ccb214bd91fe5d7e2e860] https://lava.sirena.org.uk/scheduler/job/2082576
> # test job: [8ff3dcb0e8a8bf6c41f23ed4aa62d066d3948a10] https://lava.sirena.org.uk/scheduler/job/2083116
> # test job: [123cd174a3782307787268adf45f22de4d290128] https://lava.sirena.org.uk/scheduler/job/2078967
> # test job: [1d562ba0aa7df81335bf96c02be77efe8d5bab87] https://lava.sirena.org.uk/scheduler/job/2078346
> # test job: [4d6e2211aeb932e096f673c88475016b1cc0f8ab] https://lava.sirena.org.uk/scheduler/job/2078001
> # test job: [32172cf3cb543a04c41a1677c97a38e60cad05b6] https://lava.sirena.org.uk/scheduler/job/2075073
> # test job: [b3a5302484033331af37569f7277d00131694b57] https://lava.sirena.org.uk/scheduler/job/2074546
> # test job: [873bc94689d832878befbcadc10b6ad5bb4e0027] https://lava.sirena.org.uk/scheduler/job/2074833
> # test job: [772ada50282b0c80343c8989147db816961f571d] https://lava.sirena.org.uk/scheduler/job/2069152
> # test job: [6985defd1d832f1dd9d1977a6a2cc2cef7632704] https://lava.sirena.org.uk/scheduler/job/2059121
> # test job: [fb1ebb10468da414d57153ddebaab29c38ef1a78] https://lava.sirena.org.uk/scheduler/job/2059787
> # test job: [2089f086303b773e181567fd8d5df3038bd85937] https://lava.sirena.org.uk/scheduler/job/2058104
> # test job: [6951be397ca8b8b167c9f99b5a11c541148c38cb] https://lava.sirena.org.uk/scheduler/job/2055777
> # test job: [4e92abd0a11b91af3742197a9ca962c3c00d0948] https://lava.sirena.org.uk/scheduler/job/2055848
> # test job: [abc9a349b87ac0fd3ba8787ca00971b59c2e1257] https://lava.sirena.org.uk/scheduler/job/2054637
> # test job: [55d03b5b5bdd04daf9a35ce49db18d8bb488dffb] https://lava.sirena.org.uk/scheduler/job/2053889
> # test job: [6bd1ad97eb790570c167d4de4ca59fbc9c33722a] https://lava.sirena.org.uk/scheduler/job/2053541
> # test job: [1b0f3f9ee41ee2bdd206667f85ea2aa36dfe6e69] https://lava.sirena.org.uk/scheduler/job/2053565
> # test job: [3c36965df80801344850388592e95033eceea05b] https://lava.sirena.org.uk/scheduler/job/2049494
> # test job: [2f538ef9f6f7c3d700c68536f21447dfc598f8c8] https://lava.sirena.org.uk/scheduler/job/2048656
> # test job: [aa897ffc396b48cc39eee133b6b43175d0df9eb5] https://lava.sirena.org.uk/scheduler/job/2048772
> # test job: [655079ac8a7721ac215a0596e3f33b740e01144a] https://lava.sirena.org.uk/scheduler/job/2049697
> # test job: [c4e68959af66df525d71db619ffe44af9178bb22] https://lava.sirena.org.uk/scheduler/job/2044037
> # test job: [380fd29d57abe6679d87ec56babe65ddc5873a37] https://lava.sirena.org.uk/scheduler/job/2044746
> # test job: [af9c8092d84244ca54ffb590435735f788e7a170] https://lava.sirena.org.uk/scheduler/job/2043671
> # test job: [84194c66aaf78fed150edb217b9f341518b1cba2] https://lava.sirena.org.uk/scheduler/job/2038356
> # test job: [252abf2d07d33b1c70a59ba1c9395ba42bbd793e] https://lava.sirena.org.uk/scheduler/job/2038551
> # test job: [2ecc8c089802e033d2e5204d21a9f467e2517df9] https://lava.sirena.org.uk/scheduler/job/2038657
> # test job: [ed5d499b5c9cc11dd3edae1a7a55db7dfa4f1bdc] https://lava.sirena.org.uk/scheduler/job/2029002
> # test job: [e73b743bfe8a6ff4e05b5657d3f7586a17ac3ba0] https://lava.sirena.org.uk/scheduler/job/2026439
> # test job: [f1dfbc1b5cf8650ae9a0d543e5f5335fc0f478ce] https://lava.sirena.org.uk/scheduler/job/2025521
> # test job: [ecd0de438c1f0ee86cf8f6d5047965a2a181444b] https://lava.sirena.org.uk/scheduler/job/2026118
> # test job: [6ef8e042cdcaabe3e3c68592ba8bfbaee2fa10a3] https://lava.sirena.org.uk/scheduler/job/2025847
> # test job: [20bcda681f8597e86070a4b3b12d1e4f541865d3] https://lava.sirena.org.uk/scheduler/job/2022995
> # test job: [cf6bf51b53252284bafc7377a4d8dbf10f048b4d] https://lava.sirena.org.uk/scheduler/job/2023023
> # test job: [28039efa4d8e8bbf98b066133a906bd4e307d496] https://lava.sirena.org.uk/scheduler/job/2020299
> # test job: [e062bdfdd6adbb2dee7751d054c1d8df63ddb8b8] https://lava.sirena.org.uk/scheduler/job/2020172
> # test job: [8fdb030fe283c84fd8d378c97ad0f32d6cdec6ce] https://lava.sirena.org.uk/scheduler/job/2021459
> # test job: [66fecfa91deb536a12ddf3d878a99590d7900277] https://lava.sirena.org.uk/scheduler/job/2015314
> # test job: [f034c16a4663eaf3198dc18b201ba50533fb5b81] https://lava.sirena.org.uk/scheduler/job/2015467
> # test job: [4a5ac6cd05a7e54f1585d7779464d6ed6272c134] https://lava.sirena.org.uk/scheduler/job/2011273
> # test job: [ef042df96d0e1089764f39ede61bc8f140a4be00] https://lava.sirena.org.uk/scheduler/job/2010164
> # test job: [4c33cef58965eb655a0ac8e243aa323581ec025f] https://lava.sirena.org.uk/scheduler/job/2009454
> # test job: [01313661b248c5ba586acae09bff57077dbec0a5] https://lava.sirena.org.uk/scheduler/job/2008766
> # test job: [e7434adf0c53a84d548226304cdb41c8818da1cb] https://lava.sirena.org.uk/scheduler/job/2007795
> # test job: [77a58ba7c64ccca20616aa03599766ccb0d1a330] https://lava.sirena.org.uk/scheduler/job/2007309
> # test job: [4795375d8aa072e9aacb0b278e6203c6ca41816a] https://lava.sirena.org.uk/scheduler/job/2009693
> # test job: [d29479abaded34b2b1dab2e17efe96a65eba3d61] https://lava.sirena.org.uk/scheduler/job/2008426
> # test job: [e973dfe9259095fb509ab12658c68d46f0e439d7] https://lava.sirena.org.uk/scheduler/job/2008132
> # test job: [c17fa4cbc546c431ccf13e9354d5d9c1cd247b7c] https://lava.sirena.org.uk/scheduler/job/2000029
> # test job: [2528c15f314ece50218d1273654f630d74109583] https://lava.sirena.org.uk/scheduler/job/1997624
> # test job: [d054cc3a2ccfb19484f3b54d69b6e416832dc8f4] https://lava.sirena.org.uk/scheduler/job/1995769
> # test job: [310bf433c01f78e0756fd5056a43118a2f77318c] https://lava.sirena.org.uk/scheduler/job/1996063
> # test job: [fd5ef3d69f8975bad16c437a337b5cb04c8217a2] https://lava.sirena.org.uk/scheduler/job/1996144
> # test job: [638bae3fb225a708dc67db613af62f6d14c4eff4] https://lava.sirena.org.uk/scheduler/job/1991895
> # test job: [ecba655bf54a661ffe078856cd8dbc898270e4b5] https://lava.sirena.org.uk/scheduler/job/1985163
> # test job: [7e1906643a7374529af74b013bba35e4fa4e6ffc] https://lava.sirena.org.uk/scheduler/job/1978631
> # test job: [d742ebcfe524dc54023f7c520d2ed2e4b7203c19] https://lava.sirena.org.uk/scheduler/job/1975980
> # test job: [6658472a3e2de08197acfe099ba71ee0e2505ecf] https://lava.sirena.org.uk/scheduler/job/1975543
> # test job: [fce217449075d59b29052b8cdac567f0f3e22641] https://lava.sirena.org.uk/scheduler/job/1975685
> # test job: [0cc08c8130ac8f74419f99fe707dc193b7f79d86] https://lava.sirena.org.uk/scheduler/job/1965718
> # test job: [0743acf746a81e0460a56fd5ff847d97fa7eb370] https://lava.sirena.org.uk/scheduler/job/1964864
> # test job: [d77daa49085b067137d0adbe3263f75a7ee13a1b] https://lava.sirena.org.uk/scheduler/job/1962775
> # test job: [15afe57a874eaf104bfbb61ec598fa31627f7b19] https://lava.sirena.org.uk/scheduler/job/1962957
> # test job: [1e570e77392f43a3cdab2849d1f81535f8a033e2] https://lava.sirena.org.uk/scheduler/job/1962291
> # test job: [fb25114cd760c13cf177d9ac37837fafcc9657b5] https://lava.sirena.org.uk/scheduler/job/1960165
> # test job: [6621b0f118d500092f5f3d72ddddb22aeeb3c3a0] https://lava.sirena.org.uk/scheduler/job/1959743
> # test job: [65efe5404d151767653c7b7dd39bd2e7ad532c2d] https://lava.sirena.org.uk/scheduler/job/1959980
> # test job: [433e294c3c5b5d2020085a0e36c1cb47b694690a] https://lava.sirena.org.uk/scheduler/job/1957437
> # test job: [0b0eb7702a9fa410755e86124b4b7cd36e7d1cb4] https://lava.sirena.org.uk/scheduler/job/1957381
> # test job: [bf770d6d2097a52d87f4d9c88d0b05bd3998d7de] https://lava.sirena.org.uk/scheduler/job/1986562
> # test job: [c2d420796a427dda71a2400909864e7f8e037fd4] https://lava.sirena.org.uk/scheduler/job/1986677
> # test job: [7e7e2c6e2a1cb250f8d03bb99eed01f6d982d5dd] https://lava.sirena.org.uk/scheduler/job/1954262
> # test job: [64d87ccfae3326a9561fe41dc6073064a083e0df] https://lava.sirena.org.uk/scheduler/job/1947255
> # test job: [4d410ba9aa275e7990a270f63ce436990ace1bea] https://lava.sirena.org.uk/scheduler/job/1947749
> # test job: [5e537031f322d55315cd384398b726a9a0748d47] https://lava.sirena.org.uk/scheduler/job/1946642
> # test job: [4412ab501677606436e5c49e41151a1e6eac7ac0] https://lava.sirena.org.uk/scheduler/job/1946288
> # test job: [9797329220a2c6622411eb9ecf6a35b24ce09d04] https://lava.sirena.org.uk/scheduler/job/1947398
> # test job: [fe8cc44dd173cde5788ab4e3730ac61f3d316d9c] https://lava.sirena.org.uk/scheduler/job/1946085
> # test job: [6277a486a7faaa6c87f4bf1d59a2de233a093248] https://lava.sirena.org.uk/scheduler/job/1947023
> # test job: [b83fb1b14c06bdd765903ac852ba20a14e24f227] https://lava.sirena.org.uk/scheduler/job/1946841
> # test job: [fe4d0dea039f2befb93f27569593ec209843b0f5] https://lava.sirena.org.uk/scheduler/job/2106243
> # bad: [fe4d0dea039f2befb93f27569593ec209843b0f5] Add linux-next specific files for 20251119
> git bisect bad fe4d0dea039f2befb93f27569593ec209843b0f5
> # test job: [c8e2262ce3e7658f7689975d66bbdecaf2cf95f9] https://lava.sirena.org.uk/scheduler/job/2106516
> # bad: [c8e2262ce3e7658f7689975d66bbdecaf2cf95f9] Merge branch 'master' of https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
> git bisect bad c8e2262ce3e7658f7689975d66bbdecaf2cf95f9
> # test job: [2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554] https://lava.sirena.org.uk/scheduler/job/2106588
> # bad: [2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554] Merge branch 'fs-next' of linux-next
> git bisect bad 2d48532d7f2e7d165f29ca9f2cdd589d9a8c2554
> # test job: [f80c4f29e62d88f612101dc7addb0cc7a3bc628d] https://lava.sirena.org.uk/scheduler/job/2106622
> # bad: [f80c4f29e62d88f612101dc7addb0cc7a3bc628d] Merge branch 'next' of https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git
> git bisect bad f80c4f29e62d88f612101dc7addb0cc7a3bc628d
> # test job: [b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed] https://lava.sirena.org.uk/scheduler/job/2106673
> # bad: [b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed] Merge branch 'at91-next' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux.git
> git bisect bad b7ea3276cbe7ea3cb272c4f7fc0f38db6ea7f1ed
> # test job: [e92c9e71a82b75ce8297b60db4693af85ef4593b] https://lava.sirena.org.uk/scheduler/job/2106728
> # bad: [e92c9e71a82b75ce8297b60db4693af85ef4593b] Merge branch 'mm-unstable' of https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> git bisect bad e92c9e71a82b75ce8297b60db4693af85ef4593b
> # test job: [7d808bf13943f4c6a6142400bffe14267f6dc997] https://lava.sirena.org.uk/scheduler/job/2106774
> # good: [7d808bf13943f4c6a6142400bffe14267f6dc997] mm/damon/tests/sysfs-kunit: handle alloc failures on damon_sysfs_test_add_targets()
> git bisect good 7d808bf13943f4c6a6142400bffe14267f6dc997
> # test job: [93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e] https://lava.sirena.org.uk/scheduler/job/2106827
> # bad: [93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e] mm: vmstat: correct the comment above preempt_disable_nested()
> git bisect bad 93f3c3ac6e9a0695dec5ca8c5aa0fdc7ada3293e
> # test job: [16cdd4e5a52b421b27b598b9eee3cd18212944a1] https://lava.sirena.org.uk/scheduler/job/2106960
> # good: [16cdd4e5a52b421b27b598b9eee3cd18212944a1] migrate: optimise alloc_migration_target()
> git bisect good 16cdd4e5a52b421b27b598b9eee3cd18212944a1
> # test job: [3da23b1058cde436f5ab711f4597dbe75865ea38] https://lava.sirena.org.uk/scheduler/job/2107042
> # bad: [3da23b1058cde436f5ab711f4597dbe75865ea38] tools/testing/selftests/mm: add smaps visibility guard region test
> git bisect bad 3da23b1058cde436f5ab711f4597dbe75865ea38
> # test job: [6b82275fdba27802ad7ec6910b86d83bea2dda8d] https://lava.sirena.org.uk/scheduler/job/2107095
> # good: [6b82275fdba27802ad7ec6910b86d83bea2dda8d] mm: add atomic VMA flags and set VM_MAYBE_GUARD as such
> git bisect good 6b82275fdba27802ad7ec6910b86d83bea2dda8d
> # test job: [b331f7745489548c5a020301f6f3b4aad20c7b77] https://lava.sirena.org.uk/scheduler/job/2107146
> # bad: [b331f7745489548c5a020301f6f3b4aad20c7b77] mm: introduce copy-on-fork VMAs and make VM_MAYBE_GUARD one
> git bisect bad b331f7745489548c5a020301f6f3b4aad20c7b77
> # test job: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] https://lava.sirena.org.uk/scheduler/job/2107157
> # good: [f24f3801039f9a2033e3a2390fccc5adc00a8df7] mm: implement sticky VMA flags
> git bisect good f24f3801039f9a2033e3a2390fccc5adc00a8df7
> # test job: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] https://lava.sirena.org.uk/scheduler/job/2107231
> # bad: [2c91ae77d8fbafb153c13e554f50b7bbeef59d76] mm-implement-sticky-vma-flags-fix-2
> git bisect bad 2c91ae77d8fbafb153c13e554f50b7bbeef59d76
> # test job: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] https://lava.sirena.org.uk/scheduler/job/2107257
> # bad: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix
> git bisect bad 79ee48c12ef8fe9a3daf0dbeda74f038a3f557be
> # first bad commit: [79ee48c12ef8fe9a3daf0dbeda74f038a3f557be] mm-implement-sticky-vma-flags-fix

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