Messages in this thread | | | Subject | Re: NULL pointer dereference in msi_set_mask_bit | From | Paul Menzel <> | Date | Thu, 19 Jul 2018 15:56:09 +0200 |
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Dear Thomas,
On 07/19/18 15:48, Thomas Gleixner wrote:
> On Thu, 19 Jul 2018, Paul Menzel wrote: > >> I had to copy the files, and then was able to create an archive with >> non-zero files. Please find the tar archive attached. > > Thanks for providing the data. All looks normal there.
Thank you for verifying that.
> Just for clarification. Did this happen exactly once, or did it just not > happen again after you plugged in a serial cable?
The kernel also panics sometimes when loading the amdgpu module [1]. Before using the serial console it crashed often, but I do *not* know the reason.
After connecting the serial console, the problem only happened exactly once.
> One thing you might try is to disable irqbalanced when the machine is up > and then stress the affinity setter mechanism with scripting. > > Something like > > while true; do > for I in {0..3}; do echo $I > /proc/irq/$IRQ/smp_affinity_list; done > done > > might be able to trigger it. But don't ask me which interrupt was involved, > so you have to iterate through the ones which are MSI based. > > 'cat /proc/interrupt | grep MSI' will tell you.
Thank you. I guess I’ll use the machine for some time, and observe if the problem shows up again.
Thank you very much for your awesome help.
Kind regards,
Paul
[1]: https://bugs.freedesktop.org/show_bug.cgi?id=105684
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