linux-kernel - Re: [GIT PULL] SCSI fixes for 4.7-rc2

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: <CA+55aFzoFPQB6GQ-bZZJQ2bQNxDyqioxZmsDxW=P7tVOauC+AA@mail.gmail.com>
Date:	Sat, 11 Jun 2016 12:12:46 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	James Bottomley <James.Bottomley@...senpartnership.com>,
	"Ewan D. Milne" <emilne@...hat.com>,
	Jan Stancek <jstancek@...hat.com>,
	Johannes Thumshirn <jthumshirn@...e.de>,
	"Martin K. Petersen" <martin.petersen@...cle.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] SCSI fixes for 4.7-rc2

On Sat, Jun 11, 2016 at 11:54 AM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> Is there some reason to believe that the qemu CD-ROM emulation is the
> only one with this problem?

Side note:the one thing that makes the qemu cd-rom emulator "special"
is not that it's not real hardware: it's that it's a lot more likely
to be tested than just about any other actual cd-rom out there,
especially in environments that test new kernels. Lots of developers
tend to have rather modern machines (and I haven't had a CD-ROM in my
machine for the last couple of years, I think), or alternatively they
end up booting things in emulation because it makes for easy testing.

So I really don't think that "oh, it happened only with a broken
emulated device" is a very strong argument for saying that that
emulated device was the problem.

I really think it's likely that the whole "require VPD" is garbage.
The whole "everybody and their dog has used qemu, and the qemu cd-rom
emulation worked perfectly fine before" is a damn strong argument that
it's the new kernel doing something wrong.

So please figure our what the real breakage was, and fix *that*
instead of blaming qemu.

                Linus