Re: ...unofficial 2.4.3 int patch...

[Dejan Muhamedagic <dejan@xsoft.at>]

Hi,

This is a rather old issue.  Both blowfish and rc6 exhibit this
behaviour.  So far nobody offered a clue on what's going on.  You
should be able to find a thread in the lists archives.

Cheers.

Dejan

On Wed, Apr 04, 2001 at 04:57:53AM +0100, Jon Masters wrote:
> Hi,
> 	I have applied the kerneli 2.4.3.1 patch to a clean 2.4.3 source
> without trouble and have built a patched util-linux however attempting
> to run losetup as:
> 
> losetup-crypto -e rc6 /dev/loop0 /dev/hd<drive number>
> 
> results only in either a seg fault or non fatal oops but the loop device
> used cannot be used again until a reboot.
> 
> Here's part of a trace:
> 
> (Line numbers added obviously)
> 
> ---begin---
> 0	open("/dev/hdg6", O_RDWR|0x8000)        = 3
> 1	open("/dev/loop1", O_RDWR|0x8000)       = 4
> 2	mlockall(0x3, 0x4)                      = 0
> 3	ioctl(4, LOOP_SET_FD, 0x3)              = -1 ENOSYS (Function
> 	not implemented)
> 4	ioctl(4, LOOP_SET_FD, 0x3)              = 0
> 5	ioctl(4, LOOP_SET_STATUS <unfinished ...>
> 6	+++ killed by SIGSEGV +++
> ---end---
> 
> Line 3 would seem to indicate that I am doing something wrong.
> 
> Has anyone else had problems? If not can people please suggest things
> for me to try in order to help sort this out...
> 
> This patched losetup also seems to work on 2.2.18 with serpent. I wish
> to use rc6 however no option appears in that box's kernel config for
> this - although losetup doesn't complain about a lack of rc6 until after
> it has requested a password.
> 
> I'm afraid that I was using a much older kernel for a lot of crypto
> until recently and then was unable to use crypto at all for a while on
> my main desktop box so a lot of things have changed since I last looked
> at this - I apologise for not being up to speed on what's happening.
> 
> --jcm
> 
> Linux-crypto:  cryptography in and on the Linux system
> Archive:       http://mail.nl.linux.org/linux-crypto/

-- 
Dejan Muhamedagic                      mailto:dejan@xsoft.at
Xsoft GmbH                               http://www.xsoft.at
Modecenterstr. 14, 1030 Vienna, Austria    +43 1 7963636 676

Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/