On Mon, Apr 19, 2021 at 01:12:07PM -0400, Simo Sorce wrote: > On Mon, 2021-04-19 at 12:02 +0100, Richard W.M. Jones wrote: > > On Mon, Apr 19, 2021 at 06:00:38PM +0800, Kairui Song wrote: > > > 2. LUKS2 prefers Argon2 as the key derivation function, designed to > > > use a lot of memory. kdump is expected to use a minimal amount of > > > memory. Users will have to reserve a huge amount of memory for kdump > > > to work (eg. 1G reserve for kdump with 4G total memory which is not > > > reasonable). > > > > I'm just going to sympathise with you rather than provide a good > > answer here ... We had the same problem in libguestfs where Argon2 > > used too much memory for our small appliance when opening LUKS2 disks. > > We had to simply increase the amount of memory reserved, which is far > > from ideal. > > Or you could switch to use PBKDF2, it is still a supported and > reasonable option. This is v2v of random, existing guests, so switching the encryption isn't an option. Rich. > Simo. > > -- > Simo Sorce > RHEL Crypto Team > Red Hat, Inc > > > > _______________________________________________ > devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx > Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
