On Mon, 10 Apr 2017, Chris Murphy wrote:
On Sun, Apr 9, 2017 at 5:17 AM, Lennart Poettering
<lenn...@poettering.net> wrote:
That said, are you sure FIFREEZE is really what we want there? it
appears to also pause any further writes to disk (until FITHAW is
called).
So, I am still puzzled why the file system people think that "sync()"
isn't supposed to actually sync things to disk...
https://www.spinics.net/lists/linux-xfs/msg05113.html
Ah good, Dave actually suggests using a freeze there. A freeze without a
corresponding thaw should be OK if it's definitely after all processes
have been killed, since we're just about to reboot anyway. (Obviously we'd
want to avoid the whole lot when running in a container or when doing
kexec.)
I'll try to reproduce the problem (I don't use Plymouth, so I haven't seen
it myself yet) and come up with a patch.
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