Linux kernel regression status

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current cycle (v7.2.. aka v7.3-rc), culprit identified
  • eddba19b8b5f
    (v7.3-rc1)
  • PCI/AER: MacBookPro16,1 powers off ~20 s after boot by Perlow, Jason

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  • 447cbe95ebb9
    (v7.3-rc1)
  • vlan: IOMMU DMA faults on macvlan/vlan with bnxt_en by Stefan FleischmannLatest patch: [PATCH v3 net] bnxt_en: fix DMA mapping length for padded small packets
    , by Eric Dumazet; signed-off-by present
    Earlier patches: 1, 2, 3, 4

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  • 9e4a3ec3411b
    (v7.3-rc4)
  • x86: mm: protection fault when using a boot-time function tracer and a filter by Mikhail Gavrilov

    Latest five known activities:

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  • 97d34aa65c29
    (v7.3-rc2)
  • secretmem: SIGBUS on memfd_secret() pages while perf record runs by Ameer Hamza

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  • 980084de4d9b
    (v7.3-rc1)
  • Bluetooth: btusb: bt stopped working due to missing firmware by Thorsten Leemhuis
    Earliest & latest activity: .

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  • 022eb347ff3a
    (v7.3-rc1)
  • HID: logitech: hi-res scroll broken after supend and resume by Roman Stingler
    Fix incoming: perf/core: track the perf mlock gift separately

    Latest five known activities:

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  • a637a140ab86
    (v7.3-rc1)
  • Single-frame scanout corruption on DCN32 at 120 Hz, 90x more frequent since a637a140ab86 by Mikhail Gavrilov and Mikhail Gavrilov

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  • 143755bdabaa
    (v7.3-rc4)
  • dma-buf: drm/msm hardware video decode broken by Jianfeng Liu
    [1]: [PATCH] Revert "dma-buf: Make DMABUF_DEBUG default to y on DEBUG_KERNEL kernels"
    , by Jianfeng Liu (monitored)

    Latest five known activities:

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    current cycle (v7.2.. aka v7.3-rc), unknown culprit
    none known by regzbot

    previous cycle (v7.1..v7.2), culprit identified, with activity in the past three months
  • 7e5760f084d0
    (v7.2-rc1)
  • drm: amdgpu: various problems wrt to outputs, apparently already fixed in 7.3 by Michał Górny, Prslc, and Bjørnar HansenLatest patch: [PATCH 7.2.y] drm/amd/display: keep HDMI 4:2:0-only modes and automatic 4:4:4
    , by Miguel Mesa; signed-off-by present

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  • f0866517be93
    (v7.2-rc1)
  • HID: logitech-hidpp: hi-res wheel scrolling over Lightspeed receiver (G903) broken by Frantisek Musil

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  • cf6444c3e1bb
    (v7.2-rc1)
  • tick/sched: /proc/stat idle time exceeds wall time since v7.2 by Stian HalsethLatest patch: [PATCH v2] sched/cputime: Don't account idle time twice after dyntick-idle
    , by Stian Halseth; signed-off-by present
    Earlier patches: 1

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  • 70b7e3526c53
    (v7.2-rc1)
  • reads and writes hang if NFS server has v3 disabled by Benji Wiebe
    Earliest & latest activity: . Noteworthy: [fix incoming].

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  • bee25f97ad24
    (v7.2-rc1)
  • powerpc: Power9 pseries boot hang by Venkat Rao Bagalkote
    [1]: [PATCH] powerpc/kasan: require memintrinsic prefix support for KASAN [implicit due to Link/Closes tag]
    , by Mukesh Kumar Chaurasiya (IBM) (monitored)
    [2]: [PATCH V2] powerpc/kasan: require memintrinsic prefix support for KASAN [implicit due to Link/Closes tag]
    , by Mukesh Kumar Chaurasiya (IBM) (monitored)
    [3]: [PATCH V3] powerpc/kasan: require memintrinsic prefix support for KASAN [implicit due to Link/Closes tag]
    , by Mukesh Kumar Chaurasiya (IBM) (monitored)
    Latest patch: [PATCH V4] powerpc/kasan: fix r2 corruption in mem*() on GENERIC_ENTRY with old compilers
    , by Mukesh Kumar Chaurasiya (IBM); signed-off-by present
    Earlier patches: 1, 2, 3, 4, 5

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  • 87a6f2fa6e6c
    (v7.2-rc1)
  • ALSA: usb-audio: Audient EVO4 hardware volume control broken by Faaris Ansari
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: [REGRESSION] Audient EVO4 hardware volume control now requires quirk
    , by Takashi Iwai; simple patch
    Earlier patches: 1

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  • b8eeeca55456
    (v7.2-rc1)
  • clocksource/drivers/timer-ti-dm: OpenPandora (OMAP3) fails to boot by H. Nikolaus Schaller
    [1]: [PATCH] clocksource/drivers/timer-ti-dm: Register clocksource/event only for am654
    , by Markus Schneider-Pargmann (TI) (monitored)

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  • 578294b8b60d
    (v7.2-rc1)
  • e1000e: heavy packet loss on Lenovo ThinkPad P14s Gen 5 (I219-LM, Meteor Lake) after K1 re-enable; fixed by disable-k1 by Javier HerreraLatest patch: [PATCH net 6/6] e1000e: add system to disable K1 list
    , by Tony Nguyen; signed-off-by present
    Earlier patches: 1

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  • 7e5760f084d0
    (v7.2-rc1)
  • drm: amdgpu: HDMI 4K60 black screen, RGB chosen for a YCbCr 4:2:0-only sink by Curtis Vogt

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  • dd0c03d68522
    (v7.2-rc1)
  • qcom/qcom-msm8960-samsung-expressatt: SSH over USB no longer works by Rudraksha Gupta

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  • 5ead2063611a
    (v7.2-rc1)
  • Bluetooth: btusb: RTL8761BU 0bda:a728 broken due to BROKEN_EXT_SCAN quirk by Andy Tsvetinskiy
    [1]: [PATCH] Bluetooth: btusb: drop BROKEN_EXT_SCAN quirk for 0bda:a728
    , by Junjie Cao (monitored)

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  • 72780f796468
    (v7.2-rc1)
  • PCI: booting takes longer by Edward and Andreas Wild
    [1]: [PATCH v3] PCI: Skip Target Speed quirk on clamped ports with no link
    , by Andreas Wild (monitored)

    Latest five known activities:

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  • 8e2b43d2c10b
    (v7.2-rc1)
  • edia: i2c: cvs: machine has no sound by Junjie Cao

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  • 03a43677ca91
    (v7.2-rc1)
  • exfat: swapping broken by Petr Vorel

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  • dd29c017aed6
    (v7.2-rc1)
  • sched/rt: multi-second PI-boost starvation in pro-audio workloads on an ordinary non-PREEMPT_RT desktop by Martin King

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    older cycles (..v7.1), culprit identified, with activity in the past three months
  • 3f2ad90060f6
    (v7.1-rc1)
  • [BUG] KHO handover hangs when memmap reserves PMEM by Chris Bainbridge

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  • 2a70e5dc0301
    (v7.1-rc1)
  • usb: xhci_hcd: Resuming from hibernation fails with "Not enough host resources" by Harald JudtLatest patch: [PATCH 1/5] usb: xhci: clear stale bandwidth data after hibernation
    , by Niklas Neronin; signed-off-by present
    Earlier patches: 1, 2, 3

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  • 0a3fe972a7cb
    (v7.0-rc5)
  • amd_sfh: accelerometer broken since 6.19 ("Event data for report 1 was too short (15 vs 14)") by Andrej ScekLatest patch: [PATCH -next v2 3/4] HID: amd_sfh: Remove unsupported motion-state field from accelerometer report
    , by Basavaraj Natikar; signed-off-by present
    Earlier patches: 1

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  • b921aa3f8dec
    (v7.0-rc1)
  • PCI/pwrctrl: WCN7850 on PERST#-less qcom port not enumerated after pwrctrl rework by François RouxLatest patch: [PATCH v2] power: sequencing: qcom-wcn: power off WLAN at probe
    , by François Roux; signed-off-by present
    Earlier patches: 1, 2

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  • 0ac903d1bfdc
    (v7.0-rc1)
  • NFSD: U-Boot can no longer access symlinks in NFS shares by Jörg Sommer
    [1]: [PATCH v1] NFSD: Return NFSERR_ISDIR for NFSv2 READ and WRITE on a non-regular file
    , by Chuck Lever (monitored)

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  • 7299b1b39a25
    (v7.0-rc3)
  • can: usb: f81604: valid interrupt URBs are rejected by Dynetrex, AdminLatest patch: [PATCH net 3/3] usb: f81604: fix struct f81604_int_data size mismatch
    , by Marc Kleine-Budde; signed-off-by present
    Earlier patches: 1, 2, 3, 4

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  • ff643b81bc38
    (v7.1-rc1)
  • wifi: mt76: mt7925: WiFi 7 MLO (5GHz+6GHz) silently stops passing traffic after a few minutes by Jonas Hort
    [1]: Re: [REGRESSION] mt7925: MLO connectivity silently stalls with 6GHz link active
    , by Jonas Hort (monitored)
    Latest patch: [PATCH v2] wifi: mt76: mt7925: keep MLD membership consistent during link add
    , by Andrei Rusu de Castro; signed-off-by present

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  • d33e89d12295
    (v7.1-rc1)
  • thermal: core: battery data corrupted after resume on ThinkPad P1 Gen2 since d33e89d12295 by Charis Stratakis
    Earliest & latest activity: . Noteworthy: [1].

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  • 82378c6c2f43
    (v6.15-rc1)
  • x86/mm: Probabilistic segfaults on AMD hardware with INVLPGB by Henrik Böving
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: PROBLEM: Probabilistic segfault on AMD hardware with INVLPGB
    , by Rik van Riel; simple patch

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  • 3958bf16e2fe
    (v7.0-rc1)
  • PCI: bridge window undersized when child bridge windows are larger than their alignment (regression since 3958bf16e2fe, v7.0) by Nikolas Joshua Britton
    [1]: [PATCH 4/5] PCI: Fix composite resource sizing [implicit due to Link/Closes tag]
    , by Ilpo Järvinen (monitored)
    [2]: [PATCH v2 6/7] PCI: Fix composite resource sizing [implicit due to Link/Closes tag]
    , by Ilpo Järvinen (monitored)
    Latest patch: [PATCH v2 6/7] PCI: Fix composite resource sizing
    , by Ilpo Järvinen; signed-off-by present
    Earlier patches: 1, 2

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  • 1a6845aaa6de
    (v7.0-rc1)
  • [PATCH v2 0/2] PCI: Fix Renesas uPD720201 hang after the RCB Link Control write by Stefan RoeseLatest patch: [PATCH v2 2/2] PCI: Set RCB only when the Root Port has it set
    , by Stefan Roese; signed-off-by present
    Earlier patches: 1, 2

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  • 1a6845aaa6de
    (v7.0-rc1)
  • [PATCH 0/2] PCI: Fix Renesas uPD720201 hang after the RCB Link Control write by Stefan Roese
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: [PATCH 0/2] PCI: Fix Renesas uPD720201 hang after the RCB Link Control write
    , by Stefan Roese; simple patch

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  • bf3fc94cd72a
    (v7.1-rc1)
  • drm/amd/display: screen will randomly display static on high refresh rates by solonovamax

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  • 4b490e0d103c
    (v6.19-rc1)
  • ALSA snd-ctxfi: no PCM playback by Dany Patoine
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: [REGRESSION 6.14 -> 7.0] ALSA snd-ctxfi: no PCM playback on Creative X-Fi Titanium HD (EMU20k2 / SB1270)
    , by Dany Patoine; simple patch

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  • b364a0d23cae
    (v7.1-rc1)
  • ALSA: usb-audio: Behringer USB-MIDI output stalls, since "Use strings in struct usb_dev for manufacturer & co" by Jan Lentfer
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: [REGRESSION] ALSA: usb-audio: Behringer USB-MIDI output stalls, since "Use strings in struct usb_dev for manufacturer & co"
    , by Takashi Iwai; simple patch

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  • 7029acd8a950
    (v6.13-rc1)
  • io_uring MSG_RING SEND_FD fixed-file installation slowdown by Chengfeng Lin
    Earliest & latest activity:  & . Noteworthy: [1], [2], [3], [patch].
    Latest patch: [RFC PATCH 3/3] io_uring/rsrc: prefill the node cache when a file table is registered empty
    , by Uzair Beg; simple patch
    Earlier patches: 1, 2

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  • 8d95d1f4aa5c
    (v7.1-rc1)
  • platform/x86: asus-wmi: ScreenPad stops functioning as a secondary display by Salvatore Bonaccorso and Denis Benato

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  • 6456ccbd2ff7
    (v6.17-rc1)
  • apparmor AF_UNIX datagram send slowdown by Chengfeng Lin

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  • 4d4c10f763d7
    (v6.16-rc1)
  • [REGRESSION 6.16] r8169 RTL8168h/8111h fails to probe — "Unable to change power state from D3cold to D0" — bisected to 4d4c10f763d7 by Josh Perry

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  • 1f340724419e
    (v6.15-rc1)
  • PCI_DYNAMIC_OF_NODES early boot hang on ACPI x86 by Angel JLatest patch: [PATCH v3] PCI: of_property: Omit bus properties without a subordinate bus
    , by Bjorn Helgaas; signed-off-by present
    Earlier patches: 1, 2, 3

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  • 9f10374bb024
    (v7.0-rc1)
  • [patch 0/1]can: restore skb header initialisations in init_can_skb() by Yuchao Zhang
    Earliest & latest activity: .

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  • 130d29c5627c
    (v7.1-rc1)
  • platform/x86: asus-wmi: screenpad backlight power state is never read back by hugo baigueLatest patch: [PATCH v1 4/4] platform/x86: asus-wmi: remove unused screenpad_brightness
    , by Denis Benato; signed-off-by present
    Earlier patches: 1, 2, 3, 4, 5, 6

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  • 65047194
    (v7.1-rc1)
  • drm: i915: eDP 3840x2400@240 mode lost since 7.1 by starccy

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  • 0919db9f3583
    (v7.1-rc1)
  • HID: asus: touchpad becomes unresponsive by Panz Dev
    [1]: [PATCH v2] HID: asus: do not send keyboard init reports to touchpads
    , by Panz Dev (monitored)

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  • 74afeb812850
    (v6.19-rc1)
  • drm/vblank: display appears frozen by Roman Ilin

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  • bb204f19e4a1
    (v7.1-rc7)
  • drm: amdgpu: Runtime resume restores stale power limit wedging RX 7700S by Hlib KanunnikovLatest patch: [PATCH] drm/amd: Drop calls to restore power limit and clock from smu_resume()
    , by Alex Deucher; signed-off-by present

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  • cc6ed470caa2
    (v7.1-rc1)
  • 7.1: apple-gmux backlight dead on MacBookPro13,3 - PCI bridge left with VGA enable set and VGA 16-bit decode cleared, aliasing legacy VGA I/O over the gmux ports by Haram Choi
    Earliest & latest activity:  & . Noteworthy: [1].

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  • 3f8f0133a5fc
    (v6.16-rc1)
  • [6.12.y] crypto: ccp - Move SEV/SNP Platform initialization to KVM breaks SEV-ES VM launch by Andrew Wilson

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  • 260fbcb92bbe
    (v6.19-rc1)
  • refcount_t: addition on 0; use-after-free, regression from 260fbcb92bbe ("cgroup: Move dying_tasks cleanup from cgroup_task_release() to cgroup_task_free()") by Salvatore Bonaccorso
    Earliest & latest activity:  & . Noteworthy: [1].

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  • 6e0d71c288fd
    (v7.0-rc1)
  • io_uring futex WAITV accounted-allocation slowdown by Chengfeng Lin
    Earliest & latest activity: .

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  • 4ac74ea68f64
    (v7.0-rc1)
  • HID: asus: Keyboard Input Issues on Asus ROG Strix 16 (2025) during Gaming by Thorsten Leemhuis

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  • 0138610c1413
    (v7.1-rc1)
  • drm: amdgpu: every modeset and monitor wake stalls for ~1.9s by Petr BelyaevLatest patch: [PATCH] drm/amd/pm/smu7: Don't send VddC_Request on CI
    , by Petr Belyaev; signed-off-by present

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  • b96150a70696
    (v7.1-rc1)
  • drm: amdgpu: DisplayID Type-1 mode no longer enumerated on eDP panel by Julien YT

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  • 05cffc07
    (v7.1-rc1)
  • drm: xe: Tiled displays broken by Christian Zeller

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  • 28e3918179aa
    (v7.1-rc1)
  • drm/gem-shmem: muvm GPU acceleration dies with KVM by Konstantin Fastov
    Fix incoming: drm/shmem_helper: use vmf_insert_pfn_mkwrite()

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  • 0eaa1f245ac0
    (v7.1-rc7)
  • iwlwifi IO_PAGE_FAULT and Master Disable Timed Out by Chris Bainbridge

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  • c273c14b0294
    (v7.0-rc1)
  • scsi: mpi3mr: link rate set incorrectly by Ilya Khomyakov
    Earliest & latest activity: . Noteworthy: [fix incoming].

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  • 105c4256
    (v7.0)
  • ata: ahci: JMicron JMB58x AHCI 32-bit DMA fallback triggers EEH freeze by Paul Klapperich

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  • f4c31b07b136
    (v7.0-rc5)
  • sched/idle: Sysbench threads regression after f4c31b07b136 by Joseph SalisburyLatest patch: [PATCH] sched/idle: Stop the tick when no cpuidle driver is available
    , by Christian Loehle; signed-off-by present
    Earlier patches: 1, 2

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  • 94bd01253c3d
    (v7.0-rc1)
  • fsnotify concurrent inotify watch add/remove slowdown by Chengfeng Lin

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  • df4148a5a3cf
    (v7.1-rc1)
  • snd_hda_intel: 15s audio resume delay on AMD Conexant SN6140 by Demon Player

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  • fee50077656
    (v6.19-rc6)
  • amdgpu carrizo: no display signal after modeset by Jaak Ristioja and Jaak Ristioja
    Earliest & latest activity:  & . Noteworthy: [1].
    [1]: amdgpu carrizo: no display signal after modeset
    , by Salvatore Bonaccorso

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  • cac1db8c3aad
    (v6.17-rc1)
  • mm/mprotect: shared-dirty base-page toggle slower since v6.17 by Chengfeng Lin

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  • b520c4eef83d
    (v7.1-rc1)
  • commit b520c4eef83d ("block: split bio_alloc_bioset more clearly into a fast and slowpath") causes fsync to fail with pmem by Sven-Hendrik Haase

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  • 64c79dfbc458
    (v6.10-rc1)
  • serial: 8250: concurrent open of UARTs sharing an IRQ triggers "Unbalanced enable for IRQ 3" by Wang Zhaolong
    [1]: [PATCH] serial: 8250: serialize shared IRQ startup
    , by Wang Zhaolong (monitored)
    Fix incoming: serial: 8250: fix use-after-free in IRQ chain handling

    Latest five known activities:

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  • 165573e41f2f
    (v7.0-rc3)
  • tcp: secure_seq: significant TCP performance regression (QPS drop) by xietangxin

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    previous cycle (v7.1..v7.2), unknown culprit, with activity in the past three weeks
  • v7.1..v7.2
  • /proc/stat idle time exceeds wall clock since v7.2 by Ahmed Shaltout

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    older cycles (..v7.1), unknown culprit, with activity in the past three weeks
  • v6.18..v7.1
  • Subject: [REGRESSION] mt7921e: ~20% lower throughput on first association after boot (7.1/7.2), reconnect restores it by Георгий Беридзе
    Earliest & latest activity: .

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  • b2d2ad72e06e
  • wifi: iwlwifi: BE200: firmware faults by TSUMUGI-XE

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  • v6.19..v7.0
  • Silent SATA read corruption with dma-iommu on AMD 600-series AHCI (6.19 good, 7.0+ bad) by Mikael EtienneLatest patch: [PATCH v2 1/2] x86/PCI: Disable enhanced atomics on some AMD PCIe ports
    , by Mario Limonciello; signed-off-by present
    Earlier patches: 1

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  • v6.18..v6.19
  • bcm2835-audio fails to register on vchiq-bus in monolithic kernels since 6.19 (VCHIQ destaging?) by Martin Wetterwald
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    all others with unknown culprit and activity in the past three months
  • 7.1.13..7.2.4
  • Sound broken on Cirrus Logic CS8409 / iMac19,1 between 7.1.13 and 7.2.4 by Zachary Hunt

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  • v7.1..v7.2
  • restore from hibernation hangs while btusb boots Intel AX210 (8087:0032) by David Lomas

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  • v6.18..v7.2
  • i915: s2idle lid-open resume leaves eDP panel black until an input event (Raptor Lake; works on 6.18 LTS) by 徐庆

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  • v6.16..v6.17
  • futex: private hash can stay on the shared atomic refcount indefinitely after auto-scaling by Nikita Taranov
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: futex: private hash can stay on the shared atomic refcount indefinitely after auto-scaling
    , by Sebastian Andrzej Siewior; simple patch

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  • 818bebeb63dd..531ed942bb0d
  • mainline/master: (build) in arch/x86/include/generated/asm/cpufeaturemasks.h (arch/x86/Make... by KernelCI bot
    Earliest & latest activity:  & . Noteworthy: [1].

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  • b126f6f5940f..5808ac188949
  • mainline/master: (build) in arch/x86/include/generated/asm/cpufeaturemasks.h (/tmp/kci/linu... by KernelCI bot
    Earliest & latest activity: . Noteworthy: [1].

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  • a98db518dde2..c376a3456d8b
    (within v6.12-rc3..v6.13-rc1)
  • GPU passes into VM improperly after c376a3456d8b or a98db518dde2 by 70sp
    Earliest & latest activity:  & . Noteworthy: [1], [patch].
    Latest patch: Re: [REGRESSION] GPU passes into VM improperly after c376a3456d8b or a98db518dde2
    , by Baolu Lu; simple patch
    Earlier patches: 1

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  • v7.0.14..v7.1-rc1
  • 回复: [REGRESSION] snd_hda_intel: 15s audio resume delay on AMD Conexant SN6140 by Demon Player, Demon Player, and Mingyou Chen

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    on back burner with activity in the past six months
    none known by regzbot

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