Re: pstore/ram: printk: NULL characters in pstore ramoops area

Kees Cook
2023-08-11T03:05:47Z

On Thu, Aug 10, 2023 at 05:48:17PM -0700, Vijay Balakrishna wrote:
> On 8/10/23 16:50, Kees Cook wrote:
> > Can you share the .config you're building with? And what are you using
> > to trigger an Oops? I will see if I can reproduce this...
>
> Config: https://paste.ubuntu.com/p/Vrcsf8Ry9g/

Thanks! I'll see how close I can get to this for my local testing...

>
> Just ran plain "sudo reboot" and inspected /var/lib/systemd/pstore/dmesg-ramoops-0 after reboot.

If you have a "dmesg-ramoops-0" there, something Oopsed. On a clean
shutdown, only "console-ramoops-0" will be recorded. Can you double
check by deleting everything in /var/lib/systemd/pstore/ and rebooting?

If you still get a dmesg-ramoops-0 file, can you upload that somewhere
so I can look at it?

Also, can you send the contents of /proc/iomem ?

--
Kees Cook