linux-kernel - Re: [BISECTION RESULT] sched: revert cpu_clock to pre-27ec4407790d075c325e1f4da0a19c56953cce23 state

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: <20080804224533.GC30096@us.ibm.com>
Date:	Mon, 4 Aug 2008 15:45:33 -0700
From:	Nishanth Aravamudan <nacc@...ibm.com>
To:	"Luck, Tony" <tony.luck@...el.com>
Cc:	"mingo@...e.hu" <mingo@...e.hu>,
	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [BISECTION RESULT] sched: revert cpu_clock to
	pre-27ec4407790d075c325e1f4da0a19c56953cce23 state

On 04.08.2008 [15:00:47 -0700], Luck, Tony wrote:
> > I'd bet resonable sums of money that we are (once again) accessing
> > per-cpu variables in code before ia64 has a chance to initialize
> > things so that they can actually work. :-(
> 
> I tried this simple hack to check ... per-cpu variables are
> not usable until cpu_init() sets up the "ar.k3" register on
> ia64.  So this hack checks to see if it is set before calling
> cpu_clock():

Would you like me to test this patch on the box, to verify? It seems
like you were able to reproduce the non-booting kernel?

Thanks,
Nish

-- 
Nishanth Aravamudan <nacc@...ibm.com>
IBM Linux Technology Center
--
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/