linux-kernel - Re: Latest git oopses during boot

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-next>] [day] [month] [year] [list]

Date:	Thu, 7 Feb 2008 13:14:25 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Harald Arnesen <skogtun.linux@...il.com>
cc:	FUJITA Tomonori <tomof@....org>, akpm@...ux-foundation.org,
	matthew@....cx, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org, fujita.tomonori@....ntt.co.jp
Subject: Re: Latest git oopses during boot

On Thu, 7 Feb 2008, Harald Arnesen wrote:
> >
> > Can you do a
> >
> >         make drivers/scsi/advansys.lst
> >
> > and see what it should be?
> 
> Anyway, here it is, as an attachment.

Ok, I was wrong. The code really *does* compile to that insane

	a3 14 00 00 00          mov    %eax,0x14

by your compiler.

That's the

	asc_dvc_varp->overrun_buf = kzalloc(ASC_OVERRUN_BSIZE, GFP_KERNEL);

thing, and gcc seems to have decided that it can statically prove that 
asc_dvc_varp is NULL.

Quite frankly, I don't see that being true. But you have some patches in 
your tree that I haven't followed, so.. Are you sure the patches applied 
to the right spot? The patch I saw added that kzalloc() to the _end_ of 
the function (long after asc_dvc_varp was initialized), maybe that one got 
mis-applied?

Or maybe your compiler version is simply totally broken.

			Linus
--
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/