From: "Linux kernel regression tracking (#adding)" <regressions@leemhuis.info>
To: "Liang, Kan" <kan.liang@linux.intel.com>, bhelgaas@google.com
Cc: hdegoede@redhat.com, kernelorg@undead.fr, kjhambrick@gmail.com,
2lprbe78@duck.com, nicholas.johnson-opensource@outlook.com.au,
benoitg@coeus.ca, mika.westerberg@linux.intel.com,
wse@tuxedocomputers.com, mumblingdrunkard@protonmail.com,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
david.e.box@intel.com, yunying.sun@intel.com,
"regressions@lists.linux.dev" <regressions@lists.linux.dev>
Subject: Re: Bug report: the extended PCI config space is missed with 6.2-rc2
Date: Fri, 6 Jan 2023 10:44:25 +0100 [thread overview]
Message-ID: <7d7774d4-cbda-de9e-13f1-fcd734ac2aba@leemhuis.info> (raw)
In-Reply-To: <ac2693d8-8ba3-72e0-5b66-b3ae008d539d@linux.intel.com>
[TLDR: I'm adding this report to the list of tracked Linux kernel
regressions; all text you find below is based on a few templates
paragraphs you might have encountered already already in similar form.
See link in footer if these mails annoy you.]
On 04.01.23 15:39, Liang, Kan wrote:
> Hi Bjorn,
>
> Happy new year!
>
> We found some PCI issues with the latest 6.2-rc2.
>
> - Using the lspci -xxxx, the extended PCI config space of all PCI
> devices are missed with the latest 6.2-rc2. The system we used had 932
> PCI devices, at least 800 which have extended space as seen when booted
> into a 5.15 kernel. But none of them appeared in 6.2-rc2.
> - The drivers which rely on the information in the extended PCI config
> space don't work anymore. We have confirmed that the perf uncore driver
> (uncore performance monitoring) and Intel VSEC driver (telemetry) don't
> work in 6.2-rc2. There could be more drivers which are impacted.
>
> After a bisect, we found the regression is caused by the below commit
> 07eab0901ede ("efi/x86: Remove EfiMemoryMappedIO from E820 map").
> After reverting the commit, the issues are gone.
>
> Could you please take a look at the issues?
Thanks for the report. To be sure the issue doesn't fall through the
cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression
tracking bot:
#regzbot ^introduced 07eab0901ede
#regzbot title x86/pci: extended PCI config space is missed
#regzbot ignore-activity
This isn't a regression? This issue or a fix for it are already
discussed somewhere else? It was fixed already? You want to clarify when
the regression started to happen? Or point out I got the title or
something else totally wrong? Then just reply and tell me -- ideally
while also telling regzbot about it, as explained by the page listed in
the footer of this mail.
Reminder for developers: When fixing the issue, add 'Link:' tags
pointing to the report (see page linked in footer for details).
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
That page also explains what to do if mails like this annoy you.
prev parent reply other threads:[~2023-01-06 9:47 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-04 14:39 Bug report: the extended PCI config space is missed with 6.2-rc2 Liang, Kan
2023-01-04 14:50 ` Bjorn Helgaas
2023-01-04 15:45 ` Bjorn Helgaas
2023-01-05 17:42 ` Tony Luck
2023-01-05 17:51 ` Bjorn Helgaas
2023-01-05 18:04 ` Luck, Tony
2023-01-05 18:29 ` Bjorn Helgaas
2023-01-05 19:23 ` Liang, Kan
2023-01-05 19:44 ` Bjorn Helgaas
2023-01-05 19:44 ` Dan Williams
2023-01-05 19:58 ` Luck, Tony
2023-01-05 20:37 ` Bjorn Helgaas
2023-01-05 21:49 ` Luck, Tony
2023-01-05 22:20 ` Bjorn Helgaas
2023-01-05 20:23 ` Bjorn Helgaas
2023-01-05 21:20 ` Dan Williams
2023-01-05 21:35 ` Bjorn Helgaas
2023-01-05 21:43 ` Dan Williams
2023-01-05 21:48 ` Bjorn Helgaas
2023-01-05 22:32 ` Bjorn Helgaas
2023-01-05 23:38 ` Dan Williams
2023-01-06 0:22 ` Luck, Tony
2023-01-06 0:47 ` Bjorn Helgaas
2023-01-06 17:33 ` Bjorn Helgaas
2023-01-06 18:03 ` Luck, Tony
2023-01-06 20:52 ` Bjorn Helgaas
2023-01-06 21:37 ` Luck, Tony
2023-01-06 22:04 ` Bjorn Helgaas
2023-01-06 22:30 ` Luck, Tony
2023-01-10 5:43 ` Sun, Yunying
2023-01-10 18:12 ` Rafael J. Wysocki
2023-01-10 19:06 ` Bjorn Helgaas
2023-01-06 0:32 ` Bjorn Helgaas
2023-01-06 0:50 ` Liang, Kan
2023-01-09 12:27 ` Giovanni Cabiddu
2023-01-10 6:03 ` Sun, Yunying
2023-01-06 9:44 ` Linux kernel regression tracking (#adding) [this message]
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