linux-kernel - Re: tip: origin tree boot crash

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: <20100304030052.GD23633@elte.hu>
Date:	Thu, 4 Mar 2010 04:00:52 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Steffen Klassert <steffen.klassert@...unet.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: tip: origin tree boot crash


* Herbert Xu <herbert@...dor.apana.org.au> wrote:

> On Mon, Mar 01, 2010 at 03:55:19PM +0100, Steffen Klassert wrote:
> > 
> > On Mon, Mar 01, 2010 at 08:50:24AM +0100, Ingo Molnar wrote:
> > > 
> > > * Herbert Xu <herbert@...dor.apana.org.au> wrote:
> > > 
> > > >       crypto: pcrypt - Add pcrypt crypto parallelization wrapper
> > > 
> > > -tip testing started triggering the following frequent boot crash yesterday, 
> > > on 64-bit x86:
> > > 
> > >  |  calling  pcrypt_init+0x0/0xee @ 1
> > >  |  BUG: unable to handle kernel NULL pointer dereference at (null)
> > >  |  IP: [<ffffffff8126550b>] memcpy+0xb/0xb0
> > >  |  Call Trace:
> > >  |   [<ffffffff810c2f38>] ? padata_alloc+0x98/0x150
> > >  |   [<ffffffff82158c51>] ? pcrypt_init+0x0/0xee
> > >  |   [<ffffffff82158ccc>] pcrypt_init+0x7b/0xee
> > > 
> > 
> > Ugh, it seems that I forgot to allocate one of the cpumasks. Looking at the
> > configs of my test systems I noticed, that CONFIG_CPUMASK_OFFSTACK was
> > not set on all the configs, so I did not notice it.
> > 
> > The patch below fixes the boot crash if CONFIG_CPUMASK_OFFSTACK is
> > enabled on my test systems. Does the patch fix it for you too?
> 
> Ingo, any luck with this patch from Steffen?

I'm still busy with the merge window - please dont wait for me and consider it 
fixed, i'll re-report if there's still any problems.

Thanks,

	Ingo
--
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/