linux-kernel - Re: Linux 2.6.20-rc7

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: <200702010416.59469.caglar@pardus.org.tr>
Date:	Thu, 1 Feb 2007 04:16:48 +0200
From:	"S.Çağlar Onur" <caglar@...dus.org.tr>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	lkml <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...l.org>
Subject: Re: Linux 2.6.20-rc7

Hi;

31 Oca 2007 Çar tarihinde şunları yazmıştınız:
> In other words, please do give it a good testing. We should have fixed the
> nasty stuff on Adrian's list (and here's another thanks to Adrian for
> keeping me on my toes!) and it's all good. But please give it a quick
> shake-down to make sure that nothing silly happened while fixing the bad
> stuff.

For me, both 2.6.20-rc6 and 2.6.20-rc7 fails while booting with initramfs 
(initramfs that uses busybox) with "request_module: runaway loop modprobe 
binfmt-0000" error. 

So i modified kmod.c with [1] to get dump_stack, here is the picture taken 
with [2] dump_stack enabled one with description below.

And here is the some observations that i made;

* Booting without an initramfs works,
* Booting with converted initrd from failed initramfs's content works,
* Booting with "Hello world" type initramfs described 
in "Documentation/filesystems/ramfs-rootfs-initramfs.txt" works,

But what is not working is busybox binaries inside the _initramfs_, modifiying 
our init shell script to use staticly linked bash with confirms that, bash 
script interpretted without a problem by staticaly linked bash until 
busybox's mount binary called inside the initramfs.

First i thought somehow busybox is broken but copying initramfs's content into 
initrd works without a problem and also same binaries are working with 2.6.18 
so i think its a regression in kernel but of course im not sure :), if you 
need more information please ask.

[1] http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg109266.html
[2] http://cekirdek.uludag.org.tr/~caglar/error.png

Cheers
-- 
S.Çağlar Onur <caglar@...dus.org.tr>
http://cekirdek.pardus.org.tr/~caglar/

Linux is like living in a teepee. No Windows, no Gates and an Apache in house!

Content of type "application/pgp-signature" skipped