lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Thu, 26 Oct 2017 11:13:26 +0200
From:   Pavel Machek <>
To:     Tony Lindgren <>
        kernel list <>,
        linux-arm-kernel <>,,,,,,,,,,,
Subject: Re: 4.13 (and probably all recent) kernels refuse to boot on one
 Nokia N950, work or another

On Wed 2017-10-25 14:28:07, Tony Lindgren wrote:
> * Pavel Machek <> [171025 13:36]:
> > Hi!
> > 
> > ...hardware should be identical. 3.5.3-nemo kernel seems to work on
> > both. 4.13-rc2 with display and clock patches boots on phone "S", but
> > does not on phone "P"; nothing nothing is received on serial port.
> > 
> > There is some difference in the bootloaders: S's bootloader provides
> > lots of debug info, P's is silent. R&D settings do _not_ have
> > influence on bootloader. We know P's serial works, as 3.5.3 kernel
> > prints "Uncompressing linux...booting" there.
> > 
> > I'll need to return "S" phone and serial cable tommorow. If you have
> > any ideas, let me know.
> If you get nothing out of the uart, chances are the pins are
> not muxed for the uart in nolo and maybe kernel dts is missing the
> pinctrl entries for uart?
> Also try booting with mem=512M@...0000000 or 256M or 768M. Maybe the
> memory is different size or partially broken?

Uhuh. It looks like "P" nokia really wants initrd, otherwise it will
not boot.

I got "uncompressing Linux 4.13" on serial console now, debug LEDs
blinking, and if I use a flashlight, I see output on the screen, too.

(What do I need to do to get the backlight working?)

Best regards,
(cesky, pictures)

Download attachment "signature.asc" of type "application/pgp-signature" (182 bytes)

Powered by blists - more mailing lists