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]
Date:	Thu, 6 Feb 2014 08:19:05 +0200 (EET)
From:	Meelis Roos <mroos@...ux.ee>
To:	Peter Oberparleiter <oberpar@...ux.vnet.ibm.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: 3.13: BUG: unable to handle kernel paging request at
 00000000b4343e88

> > Using your config I was able to reproduce the crash and locate the
> > cause. Commit d61931d89b, "x86: Add optimized popcnt variants" adds
> > option -fcall-saved-rdi to the compile flags of lib/hweight.c when
> > compiling for x86_64. Together with options --coverage and -O2, this
> > results in a broken constructor being generated by GCC for this object
> > file which in turn causes __gcov_init() to overwrite random memory
> > locations (a mutex in your case).
> 
> Could you give this patch a try? It is a variation of the approach
> proposed in the discussion mentioned earlier and fixes the problem
> on my system.

It works for me too - the machine booted up with no problem.

-- 
Meelis Roos (mroos@...ux.ee)
--
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/

Powered by blists - more mailing lists