Linux regressions report for mainline [2021-12-26]

Linux regressions report for mainline [2021-12-26]

[Regzbot (on behalf of Thorsten Leemhuis)]

Hi, this is regzbot, the Linux kernel regression tracking bot.

Currently I'm aware of 24 regressions in linux-mainline. Find the
current status below and the latest on the web:

https://linux-regtracking.leemhuis.info/regzbot/mainline/

Bye bye, hope to see you soon for the next report.
   Regzbot (on behalf of Thorsten Leemhuis)


========================================================
current cycle (v5.15.. aka v5.16-rc), culprit identified
========================================================


5-10% increase in IO latencies with nohz balance patch
------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/YaUH5GFFoLiS4/3/@localhost.localdomain/
https://lore.kernel.org/lkml/YaUH5GFFoLiS4%2F3%2F@localhost.localdomain/

By Josef Bacik, 27 days ago; 11 activities, latest 4 days ago.
Introduced in 7fd7a9e0caba (v5.16-rc1)

Recent activities from: Valentin Schneider (1)


[ *NEW* ] RDMA/mlx5: Regression since v5.15-rc5: Kernel panic when called ib_dereg_mr
-------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/9974ea8c-f1cb-aeb4-cf1b-19d37536894a@linux.alibaba.com/
https://lore.kernel.org/linux-rdma/9974ea8c-f1cb-aeb4-cf1b-19d37536894a@linux.alibaba.com/

By Tony Lu, 5 days ago; 5 activities, latest 4 days ago.
Introduced in f0ae4afe3d35 (v5.16-rc5)

Recent activities from: Tony Lu (2), Leon Romanovsky (2), Karsten
  Graul (1)

Noteworthy links:
* [PATCH rdma-rc] RDMA/mlx5: Fix dereg mr flow for kernel MRs
  https://lore.kernel.org/lkml/f298db4ec5fdf7a2d1d166ca2f66020fd9397e5c.1640079962.git.leonro@nvidia.com/
  5 days ago, by Leon Romanovsky; thread monitored.


fbdev/efifb: Monitors no longer sleep (amdgpu dual monitor setup)
-----------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/8a27c986-4767-bd29-2073-6c4ffed49bba@jetfuse.net/
https://lore.kernel.org/linux-fbdev/8a27c986-4767-bd29-2073-6c4ffed49bba@jetfuse.net/

By Brandon Nielsen, 19 days ago; 4 activities, latest 9 days ago.
Introduced in 55285e21f045 (v5.16-rc1)

Noteworthy links:
* https://bugzilla.redhat.com/show_bug.cgi?id=2028613
* https://bugzilla.kernel.org/show_bug.cgi?id=215203


====================================================
current cycle (v5.15.. aka v5.16-rc), unkown culprit
====================================================


mm: reclaim_throttle leads to stall in near-OOM conditions
----------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/20211124011954.7cab9bb4@mail.inbox.lv/
https://lore.kernel.org/lkml/20211124011954.7cab9bb4@mail.inbox.lv/

By Alexey Avramov, 33 days ago; 21 activities, latest 3 days ago.
Introduced in v5.15..v5.16-rc1

Fix incoming:
* mm: vmscan: reduce throttling due to a failure to make progress
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=57af06179e3ef2359c3a5e1678edfe0363a0b551


mm: LTP/memcg testcase regression induced by 8cd7c588decf..66ce520bb7c2 series
------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/99e779783d6c7fce96448a3402061b9dc1b3b602.camel@gmx.de/
https://lore.kernel.org/lkml/99e779783d6c7fce96448a3402061b9dc1b3b602.camel@gmx.de/

By Mike Galbraith, 35 days ago; 33 activities, latest 3 days ago.
Introduced in 8cd7c588decf..66ce520bb7c2 (v5.15..v5.16-rc1)

Fix incoming:
* mm: vmscan: reduce throttling due to a failure to make progress
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=57af06179e3ef2359c3a5e1678edfe0363a0b551


usb: ucsi_acpi: kernel NULL pointer dereference
-----------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/bug-215117-208809@https.bugzilla.kernel.org//
https://lore.kernel.org/linux-usb/bug-215117-208809@https.bugzilla.kernel.org%2F/

By bugzilla-daemon@bugzilla.kernel.org, 33 days ago; 13 activities, latest 4 days ago.
Introduced in v5.15..v5.16-rc1

Fix incoming:
* usb: typec: ucsi: Only check the contract if there is a connection
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=3f345e907a8e7c56fdebf7231cd67afc85d02aaa


=========================================================================================
previous cycle (v5.14..v5.15), culprit identified, with activity in the past three months
=========================================================================================


[ *NEW* ] cifs: unable to mount cifs 1.0 shares because support for NTLM and weaker authentication algorithms was removed
-------------------------------------------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/dce98c91-d28c-0f5a-b177-1f4275cf0f35@leemhuis.info/
https://lore.kernel.org/regressions/dce98c91-d28c-0f5a-b177-1f4275cf0f35@leemhuis.info/

By Thorsten Leemhuis, 3 days ago; 1 activities, latest 3 days ago.
Introduced in 76a3c92ec9e0 (v5.15-rc1)

Recent activities from: Thorsten Leemhuis (1)


Kernel 5.15 reboots / freezes upon ifup/ifdown
----------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/924175a188159f4e03bd69908a91e606b574139b.camel@gmx.de/
https://lore.kernel.org/stable/924175a188159f4e03bd69908a91e606b574139b.camel@gmx.de/

By Stefan Dietrich, 32 days ago; 26 activities, latest 3 days ago.
Introduced in a90ec8483732 (v5.15-rc1)

Recent activities from: Thorsten Leemhuis (1)

2 patch postings are associated with this regression, the latest is this:
* [PATCH net v1] igc: Do not enable crosstimestamping for i225-V models
  https://lore.kernel.org/netdev/20211214003949.666642-1-vinicius.gomes@intel.com/
  12 days ago, by Vinicius Costa Gomes


drm: nouveau: annoying black flickering in some applications with KDE Plasma with Xorg
--------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/da142fb9-07d7-24fe-4533-0247b8d16cdd@sfritsch.de/
https://lore.kernel.org/dri-devel/da142fb9-07d7-24fe-4533-0247b8d16cdd@sfritsch.de/

By Stefan Fritsch, 22 days ago; 18 activities, latest 4 days ago.
Introduced in 3e1ad79bf661 (v5.15-rc1)

Fix incoming:
* drm/nouveau: wait for the exclusive fence after the shared ones v2
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=67f74302f45d5d862f22ced3297624e50ac352f0


drm: amdgpu: NUC8i7HVKVA crashes during system suspend
------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/bug-215315-2300@https.bugzilla.kernel.org//
https://lore.kernel.org/dri-devel/bug-215315-2300@https.bugzilla.kernel.org%2F/

By bugzilla-daemon@bugzilla.kernel.org, 13 days ago; 1 activities, latest 13 days ago.
Introduced in f7d6779df642 (v5.15-rc1)

Noteworthy links:
* https://bugzilla.kernel.org/show_bug.cgi?id=215315


Bluetooth not working on 5.15+ since "Bluetooth: Move shutdown callback before flushing tx and rx queue"
--------------------------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/CAJvGw+AJ5dHSb50RtJHnjbhMVQa+rJgYznFV4t-iaO0qx+W-jw@mail.gmail.com/
https://lore.kernel.org/lkml/CAJvGw%2BAJ5dHSb50RtJHnjbhMVQa%2BrJgYznFV4t-iaO0qx%2BW-jw@mail.gmail.com/

By coldolt, 16 days ago; 3 activities, latest 16 days ago.
Introduced in 0ea53674d07f (v5.15-rc1)


==================================================================================
older cycles (..v5.14), culprit identified, with activity in the past three months
==================================================================================


Bug in Memory Layout of rx_desc for QCA6174
-------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/CAH4F6usFu8-A6k5Z7rU9__iENcSC6Zr-NtRhh_aypR74UvN1uQ@mail.gmail.com/
https://lore.kernel.org/ath10k/CAH4F6usFu8-A6k5Z7rU9__iENcSC6Zr-NtRhh_aypR74UvN1uQ@mail.gmail.com/

By Francesco Magliocca, 191 days ago; 8 activities, latest 3 days ago.
Introduced in e3def6f7ddf8 (v4.16-rc1)

Recent activities from: Francesco Magliocca (1), Kalle Valo (1)

One patch associated with this regression:
* [PATCH v2] ath10k: abstract htt_rx_desc structure
  https://lore.kernel.org/linux-wireless/20211216151823.68878-1-franciman12@gmail.com/
  10 days ago, by Francesco Magliocca; thread monitored.

Noteworthy links:
* Bug in Memory Layout of rx_desc for QCA6174
  https://lore.kernel.org/ath10k/CAH4F6uvX=xtTnBDaj1BVHSx_FDSUbpc4TRC2DGTHBmGJSD2oEA@mail.gmail.com/
  58 days ago, by Francesco Magliocca; thread monitored.


usb: gadget: atmel: ethernet over USB Gadget not recognized anymore after disconnect and reconnect
--------------------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/20211211183650.12183-1-marcelo.jimenez@gmail.com/
https://lore.kernel.org/regressions/20211211183650.12183-1-marcelo.jimenez@gmail.com/

By Marcelo Roberto Jimenez, 15 days ago; 7 activities, latest 4 days ago.
Introduced in 70a7f8be8598 (v5.2-rc1)

Recent activities from: Cristian.Birsan@microchip.com (1), Greg Kroah-
  Hartman (1)


gpio: some GPIO lines have stopped working
------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/20211217153555.9413-1-marcelo.jimenez@gmail.com/
https://lore.kernel.org/stable/20211217153555.9413-1-marcelo.jimenez@gmail.com/

By Marcelo Roberto Jimenez, 9 days ago; 7 activities, latest 5 days ago.
Introduced in 2ab73c6d8323 (v5.7-rc1)

Recent activities from: Marcelo Roberto Jimenez (3), Will McVicker (1),
  Geert Uytterhoeven (1), Bartosz Golaszewski (1)


net: wireless: ath10k: 5GHz channels are marked as No-IR
--------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/1c160dfb-6ccc-b4d6-76f6-4364e0adb6dd@reox.at/
https://lore.kernel.org/ath10k/1c160dfb-6ccc-b4d6-76f6-4364e0adb6dd@reox.at/

By Sebastian Bachmann, 29 days ago; 22 activities, latest 6 days ago.
Introduced in 2dc016599cfa (v5.6-rc1)

Recent activities from: Nuno Oliveira (1), Kalle Valo (1)

Noteworthy links:
* Compex WLE600VX AP mode 5GHz doesn't work since kernel 5.6
  https://lore.kernel.org/ath10k/5971a327-d11a-35e6-8295-8dfb8ae3a434@yandex.ru/
  623 days ago, by svp; thread monitored.
* Re: Compex WLE600VX AP mode 5GHz doesn't work since kernel 5.6
  https://lore.kernel.org/ath10k/CA+ASDXNNfG3-ra8C2ou457J=Vj5eE83VCXgGsFPQQOixTcu7YA@mail.gmail.com/
  551 days ago, by Brian Norris
* [PATCH] Revert "ath: add support for special 0x0 regulatory domain"
  https://lore.kernel.org/linux-wireless/20200730124923.271429-1-alsi@bang-olufsen.dk/
  514 days ago, by Alvin Šipraga; thread monitored.
* [PATCH] Revert "ath: add support for special 0x0 regulatory domain"
  https://lore.kernel.org/ath10k/20201022172113.GA1367233@capeo.gueux.org/
  430 days ago, by Félix Sipma; thread monitored.
* Re: [PATCH] Revert "ath: add support for special 0x0 regulatory domain"
  https://lore.kernel.org/ath10k/19e636c1-fdbe-7222-a055-d668e4617070@gmx.de/
  370 days ago, by sparks71@gmx.de; thread monitored.
* https://bugs.debian.org/959821
* https://bbs.archlinux.org/viewtopic.php?id=254535


fbdev: matroxfb: display black ans warns "the current input timing is not supported by the monitor display"
-----------------------------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/20211218180035.200552-1-liuzx@knownsec.com/
https://lore.kernel.org/lkml/20211218180035.200552-1-liuzx@knownsec.com/

By Z. Liu, 8 days ago; 2 activities, latest 6 days ago.
Introduced in 11be60bd66d5 (v5.7-rc1)

Recent activities from: Geert Uytterhoeven (1)

Noteworthy links:
* https://bugzilla.kernel.org/show_bug.cgi?id=215355


pci: the pci sysfs "rom" file has disappeared for VGA devices
-------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/YbxqIyrkv3GhZVxx@intel.com/
https://lore.kernel.org/linux-pci/YbxqIyrkv3GhZVxx@intel.com/

By Ville Syrjälä, 9 days ago; 4 activities, latest 8 days ago.
Introduced in 527139d738d7 (v5.13-rc1)


btrfs: deadlocks in dedupe
--------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/20211210183456.GP17148@hungrycats.org/
https://lore.kernel.org/linux-btrfs/20211210183456.GP17148@hungrycats.org/

By Zygo Blaxell, 16 days ago; 11 activities, latest 8 days ago.
Introduced in 3078d85c9a10 (v5.11-rc1)


mtd: cfi_cmdset_0002: flash write accesses on the hardware fail on a PowerPC MPC8313 to a 8-bit-parallel S29GL064N flash
------------------------------------------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/b687c259-6413-26c9-d4c9-b3afa69ea124@pengutronix.de/
https://lore.kernel.org/lkml/b687c259-6413-26c9-d4c9-b3afa69ea124@pengutronix.de/

By Ahmad Fatoum, 13 days ago; 2 activities, latest 11 days ago.
Introduced in dfeae1073583 (v4.18-rc1)


drm: amdgpu: apps that need amdgpu do not start after system is woken from suspend
----------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/1295184560.182511.1639075777725@mail.yahoo.com/
https://lore.kernel.org/linux-i2c/1295184560.182511.1639075777725@mail.yahoo.com/

By Tareque Md.Hanif, 17 days ago; 1 activities, latest 17 days ago.
Introduced in 5a7b95fb993e (v5.14-rc1)


bluetooth: "Query LE tx power on startup" broke Bluetooth on MacBookPro16,1
---------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/4970a940-211b-25d6-edab-21a815313954@protonmail.com/
https://lore.kernel.org/regressions/4970a940-211b-25d6-edab-21a815313954@protonmail.com/

By Orlando Chamberlain, 88 days ago; 86 activities, latest 18 days ago.
Introduced in 7c395ea521e6 (v5.11-rc1)

Fix incoming:
* Bluetooth: btbcm: disable read tx power for some Macs with the T2 Security chip
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=801b4c027b44a185292007d3cf7513999d644723


usb: fsl_udc_core: corrupted request list leads to unrecoverable loop
---------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/MWHPR2201MB152074F47BF142189365627B91879@MWHPR2201MB1520.namprd22.prod.outlook.com/
https://lore.kernel.org/linuxppc-dev/MWHPR2201MB152074F47BF142189365627B91879@MWHPR2201MB1520.namprd22.prod.outlook.com/

By Eugene Bordenkircher, 58 days ago; 16 activities, latest 22 days ago.
Introduced in f79a60b8785 (v3.4-rc4)

Noteworthy links:
* Re: bug: usb: gadget: FSL_UDC_CORE Corrupted request list leads to unrecoverable loop.
  https://lore.kernel.org/all/CADRPPNSrhiwr8jmBb2h4cFYqHtuDKK8rL0i6Bkg7+xEyXJPATA@mail.gmail.com/
  57 days ago, by Li Yang
* Re: bug: usb: gadget: FSL_UDC_CORE Corrupted request list leads to unrecoverable loop.
  https://lore.kernel.org/all/2c275adc278477e1e512ea6ecc0c1f4dcc46969d.camel@infinera.com/
  57 days ago, by Joakim Tjernlund


PCIe regression on APM Merlin (aarch64 dev platform) preventing NVME initialization
-----------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/CA+enf=v9rY_xnZML01oEgKLmvY1NGBUUhnSJaETmXtDtXfaczA@mail.gmail.com/
https://lore.kernel.org/linux-pci/CA%2Benf=v9rY_xnZML01oEgKLmvY1NGBUUhnSJaETmXtDtXfaczA@mail.gmail.com/

By Stéphane Graber, 38 days ago; 9 activities, latest 24 days ago.
Introduced in 6dce5aa59e0b (v5.5-rc1)

Fix incoming:
* PCI: xgene: Fix IB window setup
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=c7a75d07827a1f33d566e18e6098379cc2a0c2b2


====================================================================
all others with unkown culprit and activity in the past three months
====================================================================


idle power increased from ~20 to ~28 watts
------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/c11d94b4-1701-4e26-efd1-42038342c4aa@kaputniks.org/
https://lore.kernel.org/lkml/c11d94b4-1701-4e26-efd1-42038342c4aa@kaputniks.org/

By Idzibear, 55 days ago; 3 activities, latest 55 days ago.
Introduced in v5.14..v5.15


=============
End of report
=============

All regressions marked '[ *NEW* ]' were added since the previous report,
which can be found here:
https://lore.kernel.org/r/163994301274.632569.11641612108460583135@leemhuis.info

Thanks for your attention, have a nice day!

  Regzbot, your hard working Linux kernel regression tracking robot


P.S.: Wanna know more about regzbot or how to use it to track regressions
for your subsystem? Then check out the getting started guide or the
reference documentation:

https://gitlab.com/knurd42/regzbot/-/blob/main/docs/getting_started.md
https://gitlab.com/knurd42/regzbot/-/blob/main/docs/reference.md

The short version: if you see a regression report you want to see
tracked, just send a reply to the report where you Cc
regressions@lists.linux.dev with a line like this:

#regzbot introduced: v5.13..v5.14-rc1

If you want to fix a tracked regression, just do what is expected
anyway: add a 'Link:' tag with the url to the report, e.g.:

Link: https://lore.kernel.org/all/30th.anniversary.repost@klaava.Helsinki.FI/

Re: Linux regressions report for mainline [2021-12-26]

[Thorsten Leemhuis]

Two quick notes before I leave the keyboard for today:

On 26.12.21 21:30, Regzbot (on behalf of Thorsten Leemhuis) wrote:
> 
> ========================================================
> current cycle (v5.15.. aka v5.16-rc), culprit identified
> ========================================================
> [...]
> fbdev/efifb: Monitors no longer sleep (amdgpu dual monitor setup)
> -----------------------------------------------------------------
> https://linux-regtracking.leemhuis.info/regzbot/regression/8a27c986-4767-bd29-2073-6c4ffed49bba@jetfuse.net/
> https://lore.kernel.org/linux-fbdev/8a27c986-4767-bd29-2073-6c4ffed49bba@jetfuse.net/
> 
> By Brandon Nielsen, 19 days ago; 4 activities, latest 9 days ago.
> Introduced in 55285e21f045 (v5.16-rc1)
> 
> Noteworthy links:
> * https://bugzilla.redhat.com/show_bug.cgi?id=2028613
> * https://bugzilla.kernel.org/show_bug.cgi?id=215203

Note, there was activity in the linked ticket on bugzilla.kernel.org;
regzbot sadly is not able to detect this yet, this and other features to
improve interaction with b.k.o remain on the todo list for now (and
sadly likely will have to remain there for a few weeks, as I have some
other things I need to work on first for the project that made regzbot
possible)

> [...]
> ====================================================
> current cycle (v5.15.. aka v5.16-rc), unkown culprit
> ====================================================
> 
> 
> mm: reclaim_throttle leads to stall in near-OOM conditions
> ----------------------------------------------------------
> https://linux-regtracking.leemhuis.info/regzbot/regression/20211124011954.7cab9bb4@mail.inbox.lv/
> https://lore.kernel.org/lkml/20211124011954.7cab9bb4@mail.inbox.lv/
> 
> By Alexey Avramov, 33 days ago; 21 activities, latest 3 days ago.
> Introduced in v5.15..v5.16-rc1
> 
> Fix incoming:
> * mm: vmscan: reduce throttling due to a failure to make progress
>   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=57af06179e3ef2359c3a5e1678edfe0363a0b551
> 
> 
> mm: LTP/memcg testcase regression induced by 8cd7c588decf..66ce520bb7c2 series
> ------------------------------------------------------------------------------
> https://linux-regtracking.leemhuis.info/regzbot/regression/99e779783d6c7fce96448a3402061b9dc1b3b602.camel@gmx.de/
> https://lore.kernel.org/lkml/99e779783d6c7fce96448a3402061b9dc1b3b602.camel@gmx.de/
> 
> By Mike Galbraith, 35 days ago; 33 activities, latest 3 days ago.
> Introduced in 8cd7c588decf..66ce520bb7c2 (v5.15..v5.16-rc1)
> 
> Fix incoming:
> * mm: vmscan: reduce throttling due to a failure to make progress
>   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=57af06179e3ef2359c3a5e1678edfe0363a0b551

I wonder why the fix for those two was not among the patches from akpm
merged yesterday; guess will investigate tomorrow.

Ciao, Thorsten