Date:   Sun,  5 Feb 2023 18:38:38 +0000
From:   "Regzbot (on behalf of Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux regressions mailing list <regressions@...ts.linux.dev>
Subject: Linux regressions report  for mainline [2023-02-05]

Hi Linus. Below you'll find regzbot's report about regression from this
cycle me or someone else told the bot about. 

Let me highlight three issues you might want to know about:

 * There is a long and ongoing discussion about problems with the NFS
client where there is some disagreement if this qualifies as
regression, as it's a old problem that is more likely to happen now. Not
sure where this heads, a proper fix seems unlikely to emerge quickly. At
least it *currently* looks like this doesn't affect a lot of users.
https://lore.kernel.org/linux-nfs/9A4A5673-691D-47EC-BC44-C43BE7E50A48@oracle.com/

 * The "Black screen when amdgpu started during 6.2-rc1 boot with AMD
IOMMU enabled" issue was stalled, but there is some movement now;
hopefully some agreement will be found there, too. It *currently* looks
like this doesn't affect a lot of users.
https://lore.kernel.org/lkml/20230114073420.759989-1-baolu.lu@linux.intel.com/

 * Waiman and Will are still discussing the "sched: incorrectly set
affinity masks and performance regression on arm64" issue, but I'm
optimistic that the involved parties soon will agree on how to fix this.
https://lore.kernel.org/lkml/20230131221719.3176-1-will@kernel.org/

And one more for the general audience than for Linus, in case anyone has
similar issues: one user reported that Chrome was crashing with the
recent -rc releases, but until now it's the only such report I've seen;
and it's not bisected yet.
https://lore.kernel.org/lkml/CAPaMSD3MM2BTW0REi4onUCPCLzz1B=-x0j9Uuvf2NHUOSefQ-w@mail.gmail.com/

Ciao, Thorsten

---

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

Currently I'm aware of 12 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 (v6.1.. aka v6.2-rc), culprit identified
======================================================


[ *NEW* ] xen/usb(?): External USB disks not recognized anymore under Xen
-------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/4fe9541e-4d4c-2b2a-f8c8-2d34a7284930@nerdbynature.de/
https://lore.kernel.org/lkml/4fe9541e-4d4c-2b2a-f8c8-2d34a7284930@nerdbynature.de/

By Christian Kujau; 6 days ago; 11 activities, latest 0 days ago.
Introduced in 90b926e68f50 (v6.2-rc4)

Recent activities from: Christian Kujau (7), Borislav Petkov (1), Linus
  Torvalds (1), Juergen Gross (1), Greg KH (1)

One patch associated with this regression:
* Re: External USB disks not recognized with v6.1.8 when using Xen
  https://lore.kernel.org/lkml/Y9%2BtDmLAlqg37TS%2B@zn.tnic/
  0 days ago, by Borislav Petkov


[ *NEW* ] nfs: failures during the git regression suite on all NFS versions
---------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/9A4A5673-691D-47EC-BC44-C43BE7E50A48@oracle.com/
https://lore.kernel.org/linux-nfs/9A4A5673-691D-47EC-BC44-C43BE7E50A48@oracle.com/

By Chuck Lever III; 4 days ago; 25 activities, latest 0 days ago.
Introduced in 85aa8ddc3818 (v6.2-rc1)

Recent activities from: Benjamin Coddington (9), Chuck Lever III (7),
  Trond Myklebust (5), Hugh Dickins (2), Jeff Layton (1), Thorsten
  Leemhuis (1)


Black screen when amdgpu started during 6.2-rc1 boot with AMD IOMMU enabled
---------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/216865/
https://bugzilla.kernel.org/show_bug.cgi?id=216865
https://lore.kernel.org/lkml/15d0f9ff-2a56-b3e9-5b45-e6b23300ae3b@leemhuis.info/

By Matt Fagnani and Matt Fagnani; 37 days ago; 55 activities, latest 1 days ago.
Introduced in 201007ef707a (v6.2-rc1)

Recent activities from: Jason Gunthorpe (6), Bjorn Helgaas (6), Baolu
  Lu (6), Jonathan Cameron (1), Vasant Hegde (1)

One patch associated with this regression:
* Re: [PATCH v3 1/1] PCI: Add translated request only flag for pci_enable_pasid()
  https://lore.kernel.org/lkml/b75a5a94-a962-f88e-149e-7d23982a7ad2@linux.intel.com/
  3 days ago, by Baolu Lu

Noteworthy links:
* [PATCH] PCI: revert "Enable PASID only when ACS RR & UF enabled on upstream path"
  https://lore.kernel.org/linux-pci/20230111085745.401710-1-christian.koenig@amd.com/
  25 days ago, by Christian König; thread monitored.
* [PATCH 1/1] PCI: Add translated request only opt-in for pci_enable_pasid()
  https://bugzilla.kernel.org/show_bug.cgi?id=20230112084629.737653-1-baolu.lu@linux.intel.com
  24 days ago, by Lu Baolu; thread monitored.
* [PATCH v2 1/1] PCI: Add translated request only flag for pci_enable_pasid()
  https://bugzilla.kernel.org/show_bug.cgi?id=20230113014409.752405-1-baolu.lu@linux.intel.com
  23 days ago, by Lu Baolu; thread monitored.
* [PATCH v3 1/1] PCI: Add translated request only flag for pci_enable_pasid()
  https://bugzilla.kernel.org/show_bug.cgi?id=20230114073420.759989-1-baolu.lu@linux.intel.com
  22 days ago, by Lu Baolu; thread monitored.


sched: incorrectly set affinity masks and performance regression on arm64
-------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/20230117160825.GA17756@willie-the-truck/
https://lore.kernel.org/lkml/20230117160825.GA17756@willie-the-truck/

By Will Deacon; 19 days ago; 48 activities, latest 2 days ago.
Introduced in 8f9ea86fdf99 (v6.2-rc1)

Recent activities from: Waiman Long (15), Peter Zijlstra (6), Will
  Deacon (4), Tejun Heo (2), Hillf Danton (1)

One patch associated with this regression:
* Re: [PATCH v10 2/5] sched: Use user_cpus_ptr for saving user provided cpumask in sched_setaffinity()
  https://lore.kernel.org/lkml/Y9QZxVPLYpH%2FsrMw@hirez.programming.kicks-ass.net/
  8 days ago, by Peter Zijlstra

Noteworthy links:
* [PATCH v2] sched: Store restrict_cpus_allowed_ptr() call state
  https://lore.kernel.org/lkml/20230121021749.55313-1-longman@redhat.com/
  15 days ago, by Waiman Long; thread monitored.
* [PATCH v3] sched: Store restrict_cpus_allowed_ptr() call state
  https://lore.kernel.org/lkml/20230127015527.466367-1-longman@redhat.com/
  9 days ago, by Waiman Long; thread monitored.
* [PATCH 1/2] cpuset: Fix cpuset_cpus_allowed() to not filter offline CPUs
  https://lore.kernel.org/lkml/20230131221719.3176-2-will@kernel.org/
  4 days ago, by Will Deacon; thread monitored.


drm: nouveau: hangs on poweroff/reboot
--------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/b64705e3-2e63-a466-f829-f9568b06766a@googlemail.com/
https://lore.kernel.org/lkml/b64705e3-2e63-a466-f829-f9568b06766a@googlemail.com/

By Chris Clayton; 17 days ago; 16 activities, latest 2 days ago.
Introduced in 0e44c2170876 (v6.2-rc1)

Recent activities from: Chris Clayton (4), Ben Skeggs (2)


[ *NEW* ] meida: venus: firmware: AOSS doesn't seel anymore on at least sc7180 and sc7280
-----------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/Y9LSMap+jRxbtpC8@google.com/
https://lore.kernel.org/lkml/Y9LSMap%2BjRxbtpC8@google.com/

By Matthias Kaehlcke; 9 days ago; 2 activities, latest 3 days ago.
Introduced in a837e5161cff (v6.2-rc1)

Recent activities from: Matthias Kaehlcke (1)


[ *NEW* ] usb: gadget: USB network interface is recognized, but 'ip link' sees it as 'NO-CARRIER'
-------------------------------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/f2a4f9847617a0929d62025748384092e5f35cce.camel@crapouillou.net/
https://lore.kernel.org/lkml/f2a4f9847617a0929d62025748384092e5f35cce.camel@crapouillou.net/

By Paul Cercueil; 4 days ago; 1 activities, latest 4 days ago.
Introduced in 321b59870f85 (v6.2-rc1)

Recent activities from: Paul Cercueil (1)


spi: spidev: recursive locking error
------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/Y8U9vrwzHVAyBZHK@francesco-nb.int.toradex.com/
https://lore.kernel.org/lkml/Y8U9vrwzHVAyBZHK@francesco-nb.int.toradex.com/

By Francesco Dolcini; 20 days ago; 12 activities, latest 6 days ago.
Introduced in a720416d9463 (v6.2-rc4)

Fix incoming:
* spi: spidev: fix a recursive locking error
  https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=master&id=eede42c9459b58b71edc99303dad65216a655810


nfs: NULL pointer dereference since NFS_V4_2_READ_PLUS is enabled by default
----------------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/f591b13c-4600-e2a4-8efa-aac6ad828dd1@linaro.org/
https://lore.kernel.org/lkml/f591b13c-4600-e2a4-8efa-aac6ad828dd1@linaro.org/

By Krzysztof Kozlowski; 29 days ago; 14 activities, latest 13 days ago.
Introduced in 7fd461c47 (v6.2-rc1)


==================================================
current cycle (v6.1.. aka v6.2-rc), unkown culprit
==================================================


net: r8169: NETDEV WATCHDOG: enp6s0 (r8169): transmit queue 0 timed out
-----------------------------------------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/216884/
https://bugzilla.kernel.org/show_bug.cgi?id=216884
https://lore.kernel.org/regressions/f5b100c0-cdeb-59d1-5c82-e1df59ee3773@leemhuis.info/

By HougeLangley and HougeLangley; 32 days ago; 21 activities, latest 2 days ago.
Introduced in v6.1..v6.2-rc2

Fix incoming:
* PCI: loongson: Improve the MRRS quirk for LS7A
  https://lore.kernel.org/regressions/2a9140bb-8c4f-dda8-cf43-92db792a29db@leemhuis.info/


[ *NEW* ] chrome crashes
------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/CAPaMSD3MM2BTW0REi4onUCPCLzz1B=-x0j9Uuvf2NHUOSefQ-w@mail.gmail.com/
https://lore.kernel.org/lkml/CAPaMSD3MM2BTW0REi4onUCPCLzz1B=-x0j9Uuvf2NHUOSefQ-w@mail.gmail.com/

By Chris McGimpsey-Jones; 8 days ago; 1 activities, latest 8 days ago.
Introduced in v6.1..v6.2-rc5


ptdma: kernel panic during host shutdown
----------------------------------------
https://linux-regtracking.leemhuis.info/regzbot/regression/216856/
https://bugzilla.kernel.org/show_bug.cgi?id=216856
https://lore.kernel.org/lkml/0e77436c-9f0a-15b6-697a-7b879e4abc4a@leemhuis.info/

By Eric Pilmore and Eric Pilmore; 39 days ago; 3 activities, latest 9 days ago.
Introduced in v6.1..v6.2-rc1


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

All regressions marked '[ *NEW* ]' were added since the previous report,
which can be found here:
https://lore.kernel.org/r/167501403214.1314424.14370223374691112185@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@...ts.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/

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