Messages in this thread | | | Date | Fri, 02 Mar 2001 18:50:56 +0100 | From | Mario Hermann <> | Subject | Re: report bug: System reboots when accessing a loop-device over a second loop-device with 2.4.2-ac7 |
| |
Hello!
Jens Axboe wrote: > > On Fri, Mar 02 2001, Mario Hermann wrote: > > There is another small bug with the loop over loop problem. Now it works > > fine for > > files but not for Devices: > > > > losetup /dev/loop0 /dev/sr1 > > losetup /dev/loop1 /dev/loop0 > > dd if=/dev/loop1 of=test.dat bs=2048 count=1024 > > Pending miscount, this should fix it.
Ok, I did some testing again. What I found:
Without crypto: Everything works good!
With crypto:
I used the ciphers: idea,serbent, aes, blowfish(with small patch in cipher-blowfish send somewhere in the past)
Only 2.4.2-ac8 Material: Everything is ok.
With old 2.2-Material:
Encrypted in the way:
losetup -e blowfish /dev/loop0 ./test.file losetup -e serpent /dev/loop1 /dev/loop0
It works perfect too! :-)
But with old 2.2 - Material stored on DVD-RAM.
losetup -e blowfish /dev/loop0 /dev/sr3 lsoetup -e serpent /dev/loop1 /dev/loop0
it doesn't work.
Just garbage comes out of the loop-device. Both, the file on the harddisk and the DVD-RAM are made with 2.2.16 an patch-int-2.2.16.9 and are working there perfectly.
I guess that the problem has maybe something to do with the logical block number.
Well, for me was the HD-File important to work under 2.4 (DB-on it...)
So great thx from me!
Hope my testing will help in some way. (will do some more monday afternoon)
--- Mario Hermann - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |