Bug#800595: octeon: panics on EdgeRouter Pro boards, missing workaround

[Apollon Oikonomopoulos <apoikos@debian.org>]

Source: linux
Version: 4.2.1-2
Severity: important

Dear Maintainer,

linux-image-4.2.0-1-octeon panics on boot on an EdgeRouter Pro 
(UBNT_E200) board, because of a missing workaround:

[    1.001113] Kernel panic - not syncing: OCTEON II DCache prefetch workaround not in place (cfa0000c).
[    1.001113] Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).

Enabling CONFIG_CAVIUM_CN63XXP1 indeed solves the problem. Note that the 
workaround has been there for a long time, but the lack of it triggers a 
panic on affected boards only since 4.1.

Regards,
Apollon

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable'), (90, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, mips

Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=el_GR.UTF-8, LC_CTYPE=el_GR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)