Bug#993091: linux: kernel oops on Olimex A20-OLinuXino-LIME2, Allwinner sun7i (A20)
Hi Salvatore,
On Sat, Feb 12, 2022 at 07:11:40PM +0100, Salvatore Bonaccorso wrote:
> > […]
> > after upgrading a A20-OLinuXino-LIME2 board to bullseye, I had problems with the
> > network interface which could be solved by preparing a tweaked u-boot (c.f. [1]).
> > However, a few hours later, a kernel oops happended and the board could not be
> > reached from the LAN again:
> >
> > […]
> >
> > I downgraded to the buster kernel for now which was working reliably for months
> > without issues on the same board.
> >
> > Many thanks and best regards,
> >
> > Andi
> >
> >
> > [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927397#62
>
> Just stumbled over this bugreport from last year, is this still a
> problem with a recent kernel?
>
Hard to say: I replaced the board by an "identical" board but with a
newer revision. Another board (same revision as the failing one) has
a different hardware configuration: It has no eMMC flash. Both boards
work fine since months without any issues.
I kept the board that shows the issue here on my desk to experiment,
where the lockup (after ~days) is no problem. Just now I powered the
board again and upgraded to the latest kernel. Let's see what
happens. The last times (some time ago already) it still failed after
some time.
That said, I can imagine that this is a hardware issue, which has not
been triggered by the buster kernel (as I wrote in the initial report,
it worked without any issues there) but now, related to kernel
changes/optimizations or the like, it is triggered (on that specific,
individual board).
Note that unfortunately the board is not perfectly 'stable' with
regard to the hardware (#927397 #911560 #911560).
Best regards,
Andi
Reply to: