Hi Dirk,
On Tue, Jan 30, 2024 at 8:08 AM Behme Dirk (CM/ESO2)
<dirk.behme@xxxxxxxxxxxx> wrote:
> On 29.01.2024 10:57, Geert Uytterhoeven wrote:
> > On Wed, Nov 22, 2023 at 8:02 AM Behme Dirk (CM/ESO2)
> > <dirk.behme@xxxxxxxxxxxx> wrote:
> >> using a rcar-dmac.c on RCar3 being quite similar to the recent mainline
> >> one [1] we got a BUG_ON() being hit [2].
> > Was the system running for a very long time?
>
> Hmm, the trace I have contains boot time stamps (dropped initially) like
>
> [ 153.394731] kernel BUG at drivers/dma/sh/../dmaengine.h:54!
>
> I think this "153" implies 153s after boot, i.e. ~2.5s after system
> start. In case there is no wrap around here too.
Yes, that is still quite early in the boot process.
Do you have log info from just before the crash, that might give a clue
which device was trying to use DMA?
Thanks!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
