linux-kernel - Re: unaligned accesses in SLAB etc.

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

Message-Id: <20141020.145746.428441452740929005.davem@davemloft.net>
Date:	Mon, 20 Oct 2014 14:57:46 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	mroos@...ux.ee
Cc:	linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org
Subject: Re: unaligned accesses in SLAB etc.

From: Meelis Roos <mroos@...ux.ee>
Date: Sun, 19 Oct 2014 10:07:03 +0300 (EEST)

>> From: Meelis Roos <mroos@...ux.ee>
>> Date: Fri, 17 Oct 2014 00:38:20 +0300 (EEST)
>> 
>> > arch/sparc/kernel/setup_64.c is the only culprit.
>> > 
>> > Attached are 2 versions of the object file as of v3.17-rc1-22-g480cadc 
>> > that I tested.
>> 
>> Just to confirm, a gcc-4.9 compiled kernel works if just setup_64.c
>> is built with gcc-4.6, is that correct?
> 
> Yes, exactly.

Just an update, I have an environment where I can perfectly reproduce
this.  I have a gcc-4.9 SVN built that compiles kernels which crash
the same way it does for you.

I'll let you know when I make more progress.
--
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/