linux-kernel - Re: bug in 2.6.22-rc2: loop mount limited to one single iso image

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:	Mon, 21 May 2007 18:50:59 +0200
From:	Uwe Bugla <uwe.bugla@....de>
To:	"Ken Chen" <kenchen@...gle.com>
Cc:	"Kay Sievers" <kay.sievers@...y.org>,
	"Ray Lee" <ray-lk@...rabbit.org>,
	"Al Viro" <viro@....linux.org.uk>,
	"Andrey Borzenkov" <arvidjaar@...l.ru>,
	"Uwe Bugla" <uwe.bugla@....de>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>
Subject: Re: bug in 2.6.22-rc2: loop mount limited to one single iso image

Am Montag, 21. Mai 2007 18:37 schrieben Sie:
> On 5/21/07, Ken Chen <kenchen@...gle.com> wrote:
> > yes and no. in that commit, I automatically create n+1 device when
> > loop device n is created, allergically was tested to be fine with
> > casual usage of "losetup" and "mount -o loop".  However, there is a
> > bug in that commit when loop.c was compiled as a module.  And when Al
> > fixed it, he also removed that magic "n+1" trick.
> >
> > Nevertheless, yes, I'm guilty of introducing the new behavior.
>
> The easiest way is to reinstate max_loop and create "max_loop" device
> up front at module load time.  However, that will lose all the "fancy
> on-demand device instantiation feature".
>
> So I propose we do the following:
>
> 1. have the module honor "max_loop" parameter and create that many
> device upfront on module load (max_loop will also be a hard max) iff
> user specify the parameter.
> 2. if max_loop is not specified, default create 8 loop device.  User
> can extent more loop device by create device node themselves and have
> kernel automatically instantiate loop device on-demand.

Sorry, Ken:
My question on point 2 would be: Does "User can extent more loop device by 
create device node themselves and......." correspond or conflict to working 
with udev?

>
> Is this acceptable?  Patch in a bit.
-
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/