On Thu, May 12, 2022 at 7:41 AM Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> * Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx> [220511 14:16]:
> > On Thu, May 5, 2022 at 7:08 AM Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> > > * Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx> [220504 10:35]:
> > > > Hi Tony, all,
> > > >
> > > > since kernel 5.18.x (5.17.x doesn't show this behavior), the system
> > > > stalls as soon as I invoke the following commands (initializing
> > > > USB-to-CAN converter):
> > > >
> > > > slcand -o -s8 -t hw -S 3000000 /dev/ttyUSB0
> > > > ip link set slcan0 up
Oh, I missed this part at first and only looked at the backtrace.
Which CAN driver
are you using? It's likely a problem in the kernel driver.
CONFIG_DMA_API_DEBUG is still likely to pinpoint the bug, but I might also
just see it by looking at the right source file.
Arnd
