Kleber, works like a charm! Thanks a lot for the bugfix.
MINIPC-PN50:~$ uname -ra
Linux MINIPC-PN50 5.13.0-28-generic #31-Ubuntu SMP Thu Jan 13 17:41:06 UTC 2022
x86_64 x86_64 x86_64 GNU/Linux
** Tags removed: verification-needed-impish
** Tags added: verification-done-impish
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Thanks a lot Matthew. Alright, no problems at all, I'll stick to .22
kernel for now and will wait for updates.
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https://bugs.launchpad.net/bugs/1956519
Title:
amd_sfh: Null pointer
Matthew, thanks a lot. I can confirm the issue is gone. There is a bunch
of preexisting errors related to the BIOS as far as I can see, but these
were present in .22 too. Please go right ahead with the patch submission
and hopefully it'll make it into .26 kernel.
vadikmironov@MINIPC-PN50:~$ uname
Matthew, thanks a lot for your detailed analysis. I stumbled across
Evgeny's patch yesterday as a most notable change related to null ptr
handling, but totally missed the second patch from Basavaraj too. How
peculiar. Anyway, please do let me know once you have a kernel build and
I will give it a
Having played with it a bit more, it certainly does not look like a
solution to 1956401 is applicable here. Unless there are any concerns, I
am removing the duplicate flag and would be appreciative if anyone from
the kernel team would take a look.
Perhaps this is something brought into 5.13 with
*** This bug is a duplicate of bug 1956401 ***
https://bugs.launchpad.net/bugs/1956401
Full dmesg output from 5.13.0-24 run attached
** Attachment added: "kernel_panic_linux-image-5.13.0-24-generic"
*** This bug is a duplicate of bug 1956401 ***
https://bugs.launchpad.net/bugs/1956401
Kelsey, following the suggestion from bug 1956401, I've upgraded to
5.13.0-24-generic and it's exactly the same story as with 5.13.0-23:
1.330735] BUG: kernel NULL pointer dereference, address:
*** This bug is a duplicate of bug 1956401 ***
https://bugs.launchpad.net/bugs/1956401
Thanks a lot Kelsey.
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https://bugs.launchpad.net/bugs/1956519
Title:
kernel panic after
** Attachment added: "dmesg_kernel_panic"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1956519/+attachment/5551779/+files/dmesg_kernel_panic_5.13.0-23-generic
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Public bug reported:
After upgrading my son's Asus PN50 with Ubuntu 21.10 to the latest
kernel 5.13.0-23, I am no longer able to boot it normally. Kernel fails
with the panic halfway through the boot process (which got overall
suspiciously slow):
[1.359465] BUG: kernel NULL pointer
I am attaching the full dmesg output for both bad kernel version and
good version booting successfully. Please let me know if there is
anything else I can provide.
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** Attachment added: "dmesg_normal_boot"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1956519/+attachment/5551780/+files/dmesg_normal_boot_5.13.0-22-generic
** Description changed:
- After upgrading my son's Asus PN50 with Ubuntu 21.10 to latest kernel
- 5.13.0-23, I no longer able
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