linux-kernel - BUG: Patch "Convert some mftb/mftbu into mfspr" breaks MPC885

lists.openwall.net		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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <528C8D3D.6050600@c-s.fr>
Date:	Wed, 20 Nov 2013 11:21:49 +0100
From:	leroy christophe <christophe.leroy@....fr>
To:	Scott Wood <scottwood@...escale.com>
CC:	LinuxPPC-dev <linuxppc-dev@...ts.ozlabs.org>,
	linux-kernel@...r.kernel.org,
	Joakim Tjernlund <joakim.tjernlund@...nsmode.se>
Subject: BUG: Patch "Convert some mftb/mftbu into mfspr" breaks MPC885

Scott,

The patch "Convert some mftb/mftbu into mfspr" 
(beb2dc0a7a84be003ce54e98b95d65cc66e6e536) breaks startup on MPC885.

The CPU traps (SoftwareEmulation trap) at sched_clock() when trying to 
read TBU with mfspr.

Reverting the patch solves the issue.

What's the prefered way to fix this ?

Christophe
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/