Re: regression with mainline kernel

[Sudip Mukherjee]

Hi Linus,

On Sat, Nov 13, 2021 at 5:07 PM Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> [ Hmm. This email was marked as spam for me. I see no obvious reason
> for it being marked as spam, but it happens.. ]
>
> On Thu, Nov 11, 2021 at 12:52 PM Sudip Mukherjee
> <sudipm.mukherjee@xxxxxxxxx> wrote:
> >
> > # first bad commit: [cd7f5ca33585918febe5e2f6dc090a21cfa775b0]
> > drm/virtio: implement context init: add virtio_gpu_fence_event
>
> Hmm. Judging from your automated screenshots, the login never appears.
>

<snip>

>
> HOWEVER - it has had a fix for a NULL pointer dereference in the
> meantime - can you check whether the current top of tree happens to
> work for you? Maybe your problem isn't due to "that commit does
> unnatural things", but simply due to the bug fixed in d89c0c8322ec
> ("drm/virtio: Fix NULL dereference error in virtio_gpu_poll").
>
> And if it's still broken with that commit, I'll happily revert it and
> people need to go back to the drawing board.

I sent another mail yesterday which is now at
https://lore.kernel.org/lkml/CADVatmOOzCxAgLhCu1tTz=44sgRDXds5-oMZ3V0w4f5kLCLKrw@xxxxxxxxxxxxxx/
I will just pase that here for you.

Last night's test on 66f4beaa6c1d worked fine. So I guess this has now
been fixed.

I have not done a bisect to see what has fixed it, but looking at the
log I think it will be that NULL pointer fix.


-- 
Regards
Sudip