FS#72340 - kernel NULL pointer dereference, address: 0000000000000000

Attached to Project: Arch Linux
Opened by Michael Dressel (mdrslmr) - Monday, 04 October 2021, 14:14 GMT
Last edited by Andreas Radke (AndyRTR) - Sunday, 10 October 2021, 18:14 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To No-one
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
After upgrading the kernel from 5.13.13 to 5.14.8 (likewise 5.14.9) there are several problems. One is that nautilus does not start, zoom freezes after a while.

Downgrading to 5.13.13 fixes the problems.

Steps to reproduce:
Upgrade to kernel 5.14.8 or 5.14.9.

More details may be found in the attached file.
   kernel-bug.txt (4.6 KiB)
This task depends upon

Closed by  Andreas Radke (AndyRTR)
Sunday, 10 October 2021, 18:14 GMT
Reason for closing:  Fixed
Comment by loqs (loqs) - Monday, 04 October 2021, 15:04 GMT
Can you reproduce the issue using linux 5.15-rc4?
Comment by Michael Dressel (mdrslmr) - Monday, 04 October 2021, 18:56 GMT
Are there arch packages for linux-headers and linux of 5.15-rc4 available?
I could try tomorrow.
Comment by loqs (loqs) - Monday, 04 October 2021, 23:07 GMT
See [1][2] both contain built packages of linux-mainline [3].

Before testing 5.15 can you reproduce the issue if you do not load [4] the openafs module?

[1] https://wiki.archlinux.org/title/Unofficial_user_repositories#archlinuxcn
[2] https://wiki.archlinux.org/title/Unofficial_user_repositories#miffe
[3] https://aur.archlinux.org/packages/linux-mainline/
[4] https://wiki.archlinux.org/title/Kernel_module#Using_kernel_command_line_2
Comment by Michael Dressel (mdrslmr) - Tuesday, 05 October 2021, 08:28 GMT
For testing I de-installed openafs and openafs-modules-dkms and upgraded to the current kernel (5.14.9). I can't do much testing without AFS but at least nautilus seamed to work without problems.
Comment by Michael Dressel (mdrslmr) - Tuesday, 05 October 2021, 09:13 GMT
Comment by Michael Dressel (mdrslmr) - Tuesday, 05 October 2021, 12:03 GMT
I can not test AFS on kernel 5.15 because durng installation I get the following error:
Error! Bad return status for module build on kernel: 5.15.0-rc4-1-mainline (x86_64)
Comment by Michael Laß (Bevan) - Wednesday, 06 October 2021, 08:48 GMT
This is very likely a remaining incopatibility of OpenAFS with Linux 5.14.

See:
* https://lists.openafs.org/pipermail/openafs-info/2021-October/043153.html
* https://lists.openafs.org/pipermail/openafs-info/2021-October/043157.html

As soon as there is a fix available, I'll update the openafs-modules packages in the AUR.
Comment by Michael Laß (Bevan) - Thursday, 07 October 2021, 19:44 GMT
This should be fixed by openafs-modules-1.8.8-2 and openafs-modules-dkms-1.8.8-2. Please let me know if the issue still occurs with those versions. I suggest closing this issue as it is not a bug in any of Arch's official packages.

As a side note: The openafs-modules* packages are not yet compatible with Linux 5.15, so the experienced build failure is (unfortunately) expected.
Comment by Michael Dressel (mdrslmr) - Friday, 08 October 2021, 06:37 GMT
Yes, excellent, thank you very much. The problem is solved with
linux 5.14.8.arch1-1
openafs-modules-dkms 1.8.8-2
for me now.

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