linux-kernel - Re: rmmod/delete_module hangs forever

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] [day] [month] [year] [list]

Message-ID: <20090319201805.GH3795@curie-int>
Date:	Thu, 19 Mar 2009 13:18:05 -0700
From:	"Robin H. Johnson" <robbat2@...too.org>
To:	linux-kernel@...r.kernel.org
Subject: Re: rmmod/delete_module hangs forever

On Sat, Mar 14, 2009 at 02:39:47PM -0700, Robin H. Johnson wrote:
> Strace gives me this fun in the end:
> delete_module("button", O_RDONLY|O_EXCL|O_NONBLOCK
> and it just sits there.
Ok, after much head-scratching and bisect-powered reboots I have
disproved for myself that this is a kernel issue.

Instead it's some weird interaction between certain BIOS settings on my
motherboard (ASUS P5Q Premium) and my SCSI controller (HP SC11Xe,
FusionMPT based) I use for tape specifically when there are no SCSI
devices on the bus. Skipping the mptspi module, or connecting a SCSI
device causes the problem to go away, ditto changing some settings in
the BIOS that cause IRQs to be allocated differently.

-- 
Robin Hugh Johnson
Gentoo Linux Developer & Infra Guy
E-Mail     : robbat2@...too.org
GnuPG FP   : 11AC BA4F 4778 E3F6 E4ED  F38E B27B 944E 3488 4E85

Content of type "application/pgp-signature" skipped