Linux kernel regression status

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current cycle (v6.5.. aka v6.6-rc), culprit identified
  • 86327e8eb94c
    (v6.6-rc1)
  • mm, memcg: runc fails to gather cgroup statistics by Jeremi Piotrowski
    Fix incoming: mm, memcg: reconsider kmem.limit_in_bytes deprecation

    Latest five known activities:

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    current cycle (v6.5.. aka v6.6-rc), unknown culprit
  • 3ec5ac12ac8a..fe0ea395f0a3
    (within v6.5-rc2..v6.6-rc1)
  • wifi: mt76: mt7915: removal of VHT160 capability broke hostap by Oleksandr Natalenko
    Earliest & latest activity: .

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  • v6.5..v6.6-rc1
  • shutdown/reboot hang on Ryzen 5825U (stuck on amdgpu initialization) by Tester47 and Tester47

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  • v6.6-rc1..57d88e8a5974
    (within v6.6-rc1..v6.6-rc2)
  • [syzbot] INFO: task hung in ext4_fallocate by Shreeya Patel

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    previous cycle (v6.4..v6.5), culprit identified, with activity in the past three months
  • 9b4b7c1f9f54
    (v6.5-rc1)
  • RDMA/rxe: occasionally pocess hang at the blktests test case srp/002 by Shinichiro Kawasaki

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  • 8ee0b41898fa
    (v6.5-rc1)
  • [bisected][regression] rustc userspace crashes on riscv in kernel 6.5 by matoro and matoro

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  • 20a41a62618d
    (v6.5-rc1)
  • serial: 8250_omap: suspend issue with console_suspend disabled by Thomas Richard
    Earliest & latest activity:  & . Noteworthy: [1], [patch].
    [1]: serial: 8250_omap: suspend issue with console_suspend disabled
    , by Thomas Richard (monitored)
    Latest patch: Re: serial: 8250_omap: suspend issue with console_suspend disabled
    , by Tony Lindgren; simple patch

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  • 0b62af28f249
    (v6.5-rc1)
  • gen8_ggtt_insert_entries() panic on Lenovo T14s (Tiger Lake) due to folio_batch() on shmem_sg_free_table() by Oleksandr Natalenko
    Earliest & latest activity:  & . Noteworthy: [1], [2], [3], [patch].
    [2]: [PATCH] i915: Limit the length of an sg list to the requested length
    , by Matthew Wilcox (Oracle) (monitored)
    Latest patch: Re: [REGRESSION] [BISECTED] Panic in gen8_ggtt_insert_entries() with v6.5
    , by Matthew Wilcox; simple patch

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  • cfeb6ae8bcb9
    (v6.5)
  • maple_tree: warning on Renesas RZ/A1 and RZ/A2 (single-core Cortex-A9 by Geert Uytterhoeven
    Earliest & latest activity:  & . Noteworthy: [1], [2], [3], [patch].
    [1]: [PATCH] init/main: Clear boot task idle flag
    , by Liam R. Howlett (monitored)
    [2]: [PATCH v2] kernel/sched: Modify initial boot task idle setup
    , by Liam R. Howlett (monitored)
    [3]: [tip: sched/urgent] kernel/sched: Modify initial boot task idle setup
    , by tip-bot2 for Liam R. Howlett (monitored)
    Latest patch: Re: [PATCH] init/main: Clear boot task idle flag
    , by Peter Zijlstra; simple patch
    Earlier patches: 1, 2, 3

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  • d14de8067e3f
    (v6.5-rc1)
  • Possible bug report: kernel 6.5.0/6.5.1 high load when CIFS share is mounted (cifsd-cfid-laundromat in"D" state) by Brian Pardy

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  • 9257959a6e5b
    (v6.5-rc1)
  • restructuring atomic locking conditionals causes vfs dentry lock protection failure by Yi Zhang

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  • 399762de769c
    (v6.5-rc1)
  • CSR_GP_CNTRL hardware access timeout due to firmware API bump by Ronan Pigott and Ronan Pigott

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  • 101bd907b424
    (v6.5-rc6)
  • can't change Samsung SSD power state due to ASPM mode checking by Genes Lists
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: [PATCH] Revert "misc: rtsx: judge ASPM Mode to set PETXCFG Reg"
    , by kernel test robot; simple patch
    Earlier patches: 1

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  • 60aebc955949
    (v6.5-rc1)
  • Blank screen on boot of Linux 6.5 and later on Lenovo ThinkPad L570 by Jaak Ristioja

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  • 0ebc1064e487
    (v6.5-rc4)
  • Regression: Commit "netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID" breaks ruleset loading in linux-stable by Timo Sigurdsson

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  • e835c0a4e23c
    (v6.5-rc4)
  • some USB devices unrecognized caused by not resetting dwc3 device if it is host-only by Kenta Sato
    Earliest & latest activity:  & . Noteworthy: [1], [patch].
    [1]: [PATCH] usb: dwc3: Soft reset phy on probe for host
    , by Thinh Nguyen (monitored)
    Latest patch: Re: usb: dwc3: some USB devices not working after 6.4.8
    , by Thinh Nguyen; simple patch

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  • da023618076
    (v6.5-rc1)
  • btrfs: write-bandwidth performance regression with NVMe raid0 by Wang Yugui
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: btrfs write-bandwidth performance regression of 6.5-rc4/rc3
    , by Wang Yugui; simple patch
    Earlier patches: 1, 2

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  • ebb83d84e49b
    (v6.5-rc1)
  • WARNING: CPU: 13 PID: 3837105 at kernel/sched/sched.h:1561 __cfsb_csd_unthrottle+0x149/0x160 by Igor Raits and Igor Raits
    [1]: [PATCH] sched/core: Fix wrong warning check in rq_clock_start_loop_update()
    , by Hao Jia (monitored) [via dup]
    Latest patch: Re: [External] Re: Fwd: WARNING: CPU: 13 PID: 3837105 at kernel/sched/sched.h:1561 __cfsb_csd_unthrottle+0x149/0x160
    , by Hao Jia; signed-off-by present

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    older cycles (..v6.4), culprit identified, with activity in the past three months
  • a7152be79b62
    (v6.2-rc8)
  • PCI/ASPM: Intel system does not sleep deeper than PC3 (caused by a revert applied to fixes another regression) by KobaKo and KobaKo
    Earliest & latest activity:  & . Noteworthy: [1], [2], [patch].
    [1]: [PATCH] PCI/ASPM: Add back L1 PM Substate save and restore
    , by Mika Westerberg (monitored)
    [2]: [PATCH v2] PCI/ASPM: Add back L1 PM Substate save and restore
    , by Mika Westerberg (monitored)
    Latest patch: Re: [PATCH] PCI/ASPM: Add back L1 PM Substate save and restore
    , by Mika Westerberg; simple patch

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  • e9031f2da1a
    (v6.4-rc1)
  • packet drop on Intel X710-T4L due to ipvu boot fix by hq.dev+kernel and hq.dev+kernel
    [1]: Fw: [Bug 217678] New: Unexplainable packet drop starting at v6.4
    , by Stephen Hemminger (monitored) [via dup]
    Latest patch: bugzilla.kernel.org bug 217678: new comment(#21)
    , by Tirthendu Sarkar; signed-off-by present
    Earlier patches: 1

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  • e8b908146d44
    (v6.4-rc1)
  • resume with a Thunderbolt dock broke with commit e8b908146d44 "PCI/PM: Increase wait time after resume" by Kamil Paral

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  • 27d54b778ad
    (v6.1-rc1)
  • net/bluetooth: packet flow suddenly ends when continuously scanning/listening for BLE packets by Stefan Agner

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  • 8b3517f88ff2
    (v6.3-rc1)
  • LS7A MRRS quirk fails to initialize PCIe devices by jiaxun.yang and jiaxun.yang
    [1]: [PATCH] pci: loongson: Workaround MIPS firmware MRRS settings
    , by Jiaxun Yang (monitored) [via dup]
    [3]: [PATCH v2] pci: loongson: Workaround MIPS firmware MRRS settings
    , by Jiaxun Yang (monitored)
    [4]: [PATCH v2] pci: loongson: Workaround MIPS firmware MRRS settings
    , by Jiaxun Yang (monitored) [via dup]
    Fix incoming: pci: loongson: Workaround MIPS firmware MRRS settings

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  • 33140e668b10
    (v6.4-rc1)
  • incorrect temperature on MT7986 due to tweaking buffer by Frank Wunderlich
    [1]: [PATCH] thermal/drivers/mediatek: Fix control buffer enablement on MT7896
    , by Frank Wunderlich (monitored)
    [2]: [PATCH] thermal/drivers/mediatek: Fix probe for THERMAL_V2
    , by Markus Schneider-Pargmann (monitored)

    Latest five known activities:

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  • 96cb9d055445
    (v6.1-rc2)
  • bcm2835-rng: Performance regression since 96cb9d055445 by Stefan Wahren
    [1]: [PATCH] hwrng: bcm2835: Fix hwrng throughput regression
    , by Stefan Wahren (monitored)
    [2]: [PATCH V2] hwrng: bcm2835: Fix hwrng throughput regression
    , by Stefan Wahren (monitored)

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  • 9dc704dcc09e
    (v6.4-rc7)
  • Adaptec 71605z hangs with aacraid: Host adapter abort request after update by bugzilla-daemon@kernel.org

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  • 6ad0ad2bf8a6
    (v5.19-rc7)
  • retbleed reporting causes high cpu utilization due to kworker/events_power_efficient by Vivek Anand and Vivek Anand
    Earliest & latest activity:  & . Noteworthy: [1], [2], [patch].
    [1]: Performance Regression in Linux Kernel 5.19
    , by Manikandan Jagatheesan [via dup]
    Latest patch: bugzilla.kernel.org bug 217586: new comment(#9)
    , by Mateusz Guzik; simple patch

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  • d2a632a8a117
    (v6.0-rc1)
  • reducing RTC_UIP polling period causes broken RTC on resume from suspend by Carsten Hatger and Carsten HatgerLatest patch: bugzilla.kernel.org bug 217626: new comment(#21)
    , by Mateusz Jończyk; signed-off-by present
    Earlier patches: 1, 2, 3

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  • b39181f7c690
    (v5.19-rc1)
  • FTRACE_MCOUNT_MAX_OFFSET causes kernel NULL pointer dereference and virtual console (tty1) freeze by Taketo Kabe and Taketo Kabe
    Earliest & latest activity:  & . Noteworthy: [1], [patch].
    Latest patch: Re: radeon.ko/i586: BUG: kernel NULL pointer dereference, address:00000004
    , by Steven Rostedt; simple patch
    Earlier patches: 1, 2, 3

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    previous cycle (v6.4..v6.5), unknown culprit, with activity in the past three weeks
  • v6.4..v6.5
  • Abnormal battery drain with kernel 6.5 (Ryzen 5500u) by Michele Della Guardia and Michele Della Guardia

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  • v6.4..v6.5
  • UDMA configured spam on Marvell RAID controller by Timo Gurr and Timo Gurr
    [1]: [PATCH] scsi: Do no try to probe for CDL on old drives
    , by Damien Le Moal (monitored) [via dup]
    Fix incoming: scsi: Do no try to probe for CDL on old drives

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  • v6.4..v6.5
  • slow boot possibly due to firmware (TPM?) issues by Marcus Seyfarth, Marcus Seyfarth, and Marcus Seyfarth
    Earliest & latest activity:  & . Noteworthy: [patch].
    Latest patch: Re: Fwd: [6.5.1] Slow boot and opening files (RIP: kvfree_rcu_bulk)
    , by Uladzislau Rezki; simple patch

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  • v6.4..v6.5
  • systemd services timeout causing almost an hour of boot time by Marc Haber

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  • v6.4..v6.5
  • [6.5.1] Slow boot and opening files (RIP: kvfree_rcu_bulk) by Marcus Seyfarth

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    older cycles (..v6.4), unknown culprit, with activity in the past three weeks
  • v5.9..v6.4
  • Bluetooth LE scan doesn't show device name by TatriX and TatriX

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  • v6.1..v6.2
  • amd-sfh module causes reboot and shutdown hangs randomly on hp aero 13 by Mehmet and MehmetLatest patch: bugzilla.kernel.org bug 217900: new comment(#21)
    , by Mario Limonciello (AMD); signed-off-by present
    Earlier patches: 1

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  • v6.3.9..v6.4.2
  • Re: regression: kernel 6.4.x breaks scanning/pairing (but not use) of LE devices by Paul Menzel
    Earliest & latest activity:  & . Noteworthy: [1], [2], [3], [4], [5], [6], [7], [8].
    [1]: [PATCH] Bluetooth: HCI: Introduce HCI_QUIRK_BROKEN_LE_CODED
    , by Luiz Augusto von Dentz (monitored)
    [2]: [PATCH v2] Bluetooth: HCI: Introduce HCI_QUIRK_BROKEN_LE_CODED
    , by Luiz Augusto von Dentz (monitored)
    [3]: [PATCH v3] Bluetooth: HCI: Introduce HCI_QUIRK_BROKEN_LE_CODED
    , by Luiz Augusto von Dentz (monitored)
    [4]: [PATCH v4] Bluetooth: HCI: Introduce HCI_QUIRK_BROKEN_LE_CODED
    , by Luiz Augusto von Dentz (monitored)
    [7]: [PATCH 6.5 730/739] Bluetooth: HCI: Introduce HCI_QUIRK_BROKEN_LE_CODED
    , by Greg Kroah-Hartman (monitored)
    [8]: [PATCH 6.4 727/737] Bluetooth: HCI: Introduce HCI_QUIRK_BROKEN_LE_CODED
    , by Greg Kroah-Hartman (monitored)

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  • v4.14.267..v5.15.127
  • predictable urandom output on Alix 2d13 by Bagas Sanjaya

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    all others with unknown culprit and activity in the past three months
  • v6.3..v6.4
  • nfs server not responding loop on Synology NAS devices by greg and greg

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  • v5.16..v6.4
  • Thinkpad L14 Gen 1 keyboard not working on Plasma session by José Ramón Muñoz Pekkarinen

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  • v6.1.41..v6.4.6
  • Btrfs scrub on single ssd reports non existing errors on Linux 6.4 by Olivier Wuillemin and Olivier WuilleminLatest patch: bugzilla.kernel.org bug 217758: new comment(#10)
    , by Qu Wenruo; signed-off-by present

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  • v5.15..v6.0
  • NULL pointer dereference on filemap_get_folio() on Intel Core i5-10500 by Vladimir Lomov and Vladimir LomovLatest patch: bugzilla.kernel.org bug 217441: new comment(#21)
    , by Matthew Wilcox; signed-off-by present

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  • v6.1..v6.4
  • screen shakes on Intel® Iris® Xe by Johannes and Johannes

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  • v6.3..v6.4.5
  • [perf] Build error when using LTO on 6.4 by Marcus Seyfarth and Marcus Seyfarth

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  • v6.1..v6.4
  • OOB protocol access fix breaks Elan Touchpad 1206 by Verot and Verot

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  • v5.14..v5.15
  • e1000e performance drop (slow receive/rx) on i219-LM (Alder Lake) by Scott Silverman and Scott Silverman

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  • 552d6fd2f2
  • net: wireless: association is rejected by AP by Michal Smulski and Michal Smulski

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    on back burner with activity in the past six months
  • f1a7941243c
    (v6.2-rc1)
  • mm: performance regression on shell-heavy workloads by Jan Kara
    On back burner: not urgent according to reporter
    , by Linux regression tracking #adding (Thorsten Leemhuis)

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  • v5.16..v5.17
  • Only Toshiba MG08/MG09 SATA hard disks disappear after resume from S3 suspend (reproducible) - AMD Ryzen 5 PRO 4650G by Nils and Nils
    On back burner: hard to debug, as reporter is unable to try custom kernels
    , by Thorsten Leemhuis

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  • a56a1138cbd8
    (v5.17-rc7)
  • [BUG] BLE device unpairing triggers kernel panic by Ahmad Fatoum
    Earliest & latest activity:  & . Noteworthy: [1], [patch].
    On back burner: debuging is slow this further
    , by Thorsten Leemhuis
    [1]: [PATCH] Bluetooth: hci_sync: complete LE connection on any event
    , by Ahmad Fatoum (monitored)
    Latest patch: Re: [BUG] BLE device unpairing triggers kernel panic
    , by Luiz Augusto von Dentz; simple patch

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