Re: [4.8.0-rc1] am335x-evm boot failure: n_tty_receive_buf_common: "Unable to handle kernel paging request.."

[Tony Lindgren]

* Matthijs van Duin <matthijsvanduin@xxxxxxxxx> [160909 15:23]:
> If you look more carefully the first problem is actually a bus error:
> [ 15.776190] Unhandled fault: external abort on non-linefetch (0x1028)
> at 0xf9e3e044
> [ 15.825925] PC is at omap_hwmod_read+0x14/0x28
> [ 15.830583] LR is at omap_rtc_wait_not_busy+0x1c/0x44
> 
> I have no idea how the kernel manages to continue after a bus error in
> a driver (inside local_irq_disable even), but I wouldn't be inclined
> to take any later errors seriously.
> 
> See also the "4.8 crash on BeagleBone" thread on linux-omap.

Yeah. Just disable omap_l3_smx/noc driver and you should see
a proper stack trace. With the L3 driver we're seeing the trace
for L3 error interrupt.

Regards,

Tony