hibernation support - lack of distro-wide coordination between systemd, dracut, anaconda, pm-utils and maybe more?
Till Maas
opensource at till.name
Mon Mar 30 06:57:56 UTC 2015
Hi,
it seems to be that me have a major problem of core package maintainers
coordinating features in Fedora.
See for example:
https://bugzilla.redhat.com/show_bug.cgi?id=1174945
There the problem is, that dracut runs a fsck check before deciding
whether to resume. This can result in a big file system corruption,
since the kernel had a different idea of the file system state after
resuming from hibernation that there really is. The problem has several
core players that do not seem to communicate:
- dracut which uses systemd and showed this problem in F21 (I did not
notice it in F20)
- systemd:
- might have changed things in F21 to break resuming
- Does only parse the kernel command line, does not parse the
options that dracut gathers from the system during initramfs
generation
- provides hibernation support via "systemctl hibernate", which is
also what pm-hibernate does (why do we have two tools for the same
core task?)
- anaconda, which does not add a resume= kernel command line option when
installing a system
Therefore please coordinate with others if you maintain a key component
for a core distribution feature and look for other items that need to be
adjusted.
Regards
Till
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