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Bug#1054231: WatchDog broken since version 5.17

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  Bug#1054231: WatchDog broken since version 5.17 программист некто <programmer11180@programist.ru> - 2023-10-19 18:00 +0200
    Bug#1054231: marked as done (WatchDog broken since version 5.17) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-02-20 15:40 +0100
    Bug#1054231: New info программист некто <programmer11180@programist.ru> - 2025-02-21 19:20 +0100
      Bug#1054231: New info Salvatore Bonaccorso <carnil@debian.org> - 2025-02-21 20:00 +0100
    Processed: Re: Bug#1054231: New info "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-02-21 20:00 +0100
    Bug#1054231: New info программист некто <programmer11180@programist.ru> - 2025-02-28 03:50 +0100

#80686 — Bug#1054231: WatchDog broken since version 5.17

Source: linux
Version: 6.5.3-1
Severity: normal

Hello. WatchDog broken since version 5.17. Kernel write an error to syslog.
Tested versions: 5.10, 5.15, 5.16, 5.17, 5.19, 6.1, 6.5.

From syslog:
KERNEL 5.16 (and lower)
Oct 19 12:24:12 debian-gateway kernel: Linux version 5.16.0-6-amd64 (debian-kernel@lists.debian.org) (gcc-11 (Debian 11.2.0-19) 11.2.0, GNU ld (GNU Binutils for Debian) 2.38) #1 SMP PREEMPT Debian 5.16.18-1 (2022-03-29)
...
Oct 19 12:24:13 debian-gateway kernel: sp5100_tco: SP5100/SB800 TCO WatchDog Timer Driver

KERNEL 5.17 (and higher)
Oct 18 20:36:00 debian-gateway kernel: Linux version 5.17.0-3-amd64 (debian-kernel@lists.debian.org) (gcc-11 (Debian 11.3.0-3) 11.3.0, GNU ld (GNU Binutils for Debian) 2.38) #1 SMP PREEMPT Debian 5.17.11-1 (2022-05-26)
...
Oct 18 20:36:01 debian-gateway kernel: sp5100_tco: SP5100/SB800 TCO WatchDog Timer Driver
Oct 18 20:36:01 debian-gateway kernel: sp5100-tco sp5100-tco: Failed to reserve MMIO or alternate MMIO region
Oct 18 20:36:01 debian-gateway kernel: sp5100-tco: probe of sp5100-tco failed with error -16

$ lspci | grep SB
00:12.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 Non-Raid-5 SATA
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI0)
00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI1)
00:13.3 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI3)
00:13.4 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB (OHCI4)
00:13.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB600 USB Controller (EHCI)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 14)
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] SB600 IDE
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB600 PCI to LPC Bridge
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge

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#85932 — Bug#1054231: marked as done (WatchDog broken since version 5.17)

[Multipart message — attachments visible in raw view] — view raw

Your message dated Thu, 20 Feb 2025 15:36:17 +0100 (CET)
with message-id <20250220143617.A06C5BE2EE7@eldamar.lan>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #1054231,
regarding WatchDog broken since version 5.17
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
1054231: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054231
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#86028 — Bug#1054231: New info

Hello.
Linux versions 6.11, 6.12, 6.13 also affected.
Errors in syslog is same.

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#86030 — Bug#1054231: New info

Control: tags -1 + upstream
Control: found -1 6.12.15-1
Control: found -1 6.13.3-1~exp1

Hi,

On Fri, Feb 21, 2025 at 10:03:12PM +0400, программист некто wrote:
> Hello.
> Linux versions 6.11, 6.12, 6.13 also affected.
> Errors in syslog is same.

thanks for reporting back.

Actually I'm unsure if this is a kernel problem. The behaviour change
is induced by:

5559598742fb ("drm/amd/display: Pass non-null to dcn20_validate_apply_pipe_split_flags")
(https://git.kernel.org/linus/1f182aca230086d4a4469c0f9136a6ea762d6385)

which is in 5.18-rc1 (and got backported to v5.17.10 and v5.15.42.

Can you plese double check your MMIO related BIOS settings?

Regards,
Salvatore

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#86031 — Processed: Re: Bug#1054231: New info

Processing control commands:

> tags -1 + upstream
Bug #1054231 [src:linux] WatchDog broken since version 5.17
Added tag(s) upstream.
> found -1 6.12.15-1
Bug #1054231 [src:linux] WatchDog broken since version 5.17
Marked as found in versions linux/6.12.15-1.
> found -1 6.13.3-1~exp1
Bug #1054231 [src:linux] WatchDog broken since version 5.17
Marked as found in versions linux/6.13.3-1~exp1.

-- 
1054231: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054231
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#86186 — Bug#1054231: New info

Hello.
I have tested old kernels
linux-image-5.17.0-2-amd64-unsigned (5.7.6-1)
linux-image-5.17.0-3-amd64-unsigned (5.7.11-1)
In first case - error is absent, in second - error is  present.
Also, I check the BIOS settings. There is no any MMIO settings. This is
notebook, it have very small BIOS settings at all.

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