Re: crash by cdc_acm driver in kernels 4.8-rc1/5

From: Wim Osterholt
Date: Fri Sep 23 2016 - 06:04:39 EST


On Thu, Sep 22, 2016 at 04:40:50PM +0200, Oliver Neukum wrote:
>
> dmesg -c
> echo 9 > /proc/sysrq-trigger
> modprobe cdc_acm
> echo "module cdc_acm +mpf" > /sys/kernel/debug/dynamic_debug/control
>
> [plug your device in]
>
> and provide the full output of dmesg after that.

That is not possible under a 4.8 kernel.

'Fixing recursive fault but reboot is needed!' and frozen it is.


Regards, Wim.