[linux-lvm] Unexptected filesytem unmount with thin provision and autoextend disabled - lvmetad crashed?

Gionatan Danti g.danti at assyoma.it
Tue May 24 14:28:24 UTC 2016

Il 24-05-2016 16:17 Zdenek Kabelac ha scritto:
> Dmeventd should not talk to lvmetad at all - I'm saying this for 
> years....
> There are some very very hard to fix (IMHO) design issues - and
> locking lvmetad in memory would be just one of wrong (IMHO) ways
> forward....
> Anyway - let's see how it evolves here as there are further troubles
> with lvmetad & dmeventd - see i.e. here:
> https://bugzilla.redhat.com/show_bug.cgi?id=1339210

I'll follow it ;)

> One more, somewhat related thing: when thin pool goes full, is a good
> thing to remount an ext3/4 in readonly mode (error=remount-ro). But
> what to do with XFS which, AFAIK, does not support a similar
> readonly-on-error policy?
> It is my understanding that upstream XFS has some improvements to
> auto-shutdown in case of write errors. Did these improvements already
> tickle to production kernels (eg: RHEL6 and 7)?

Any thoughts/suggestions on that?

Danti Gionatan
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