Hi, I have been digging the mailinglist archives a bit further. I know this is way old stuff, but the symtoms described there are just those I experience since upgrading to 2.4.21 kernel: http://mail.nl.linux.org/linux-crypto/2001-02/msg00001.html > I can confirm this. The system totally locks when this occurs. I let > it sit all night when it did this the last time, and it didn't > recover. In the article, it's referred to as: "loopback hang" bug. Any help very much appreciated. thomas --- Thomas Müller <etwcn@xxxxxxxxx> wrote: > Hi, > I am using kernel 2.4.21 with the corresponding > crypto-patches (patch-int-2.4.21.0.bz2) and > loop-patch > (loop-jari-2.4.21.0.patch). When writing a large > amount of data to an encrypted folder residing in a > single file, the complete system crashes. > > I am doing the following: > > # dd if=/dev/urandom of=~/.crypto bs=1024 count=2048 > # losetup -e aes -k 256 /dev/loop0 ~/.crypto > # mke2fs /dev/loop0 > # mount /dev/loop0 ~/crypto > # cp -a ~/unencrypted_folder ~/crypto > > After a few minutes of copying data there is no more > harddisk activity but the last cp command does not > complete. Any services on the machine (sshd, httpd, > ftpd) are no longer reachable. It is possible to > type > the user name after the login prompt at the local > console, but pressing enter then does not give the > prompt for the password. The kernel is still routing > ip packets though. > > I eventually have to press the reset button. > > Any clues? > > > __________________________________ > Do you Yahoo!? > SBC Yahoo! DSL - Now only $29.95 per month! > http://sbc.yahoo.com > - > Linux-crypto: cryptography in and on the Linux > system > Archive: > http://mail.nl.linux.org/linux-crypto/ > __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
