[linux-lvm] [PATCH] [PATCH] stable-2.02 - lvresize: deny operation on swap dev without force option

[Zdenek Kabelac]

----- Original Message -----
From: "Zhao Heming" <heming.zhao at suse.com>
To: linux-lvm at redhat.com, zkabelac at redhat.com, teigland at redhat.com
Cc: "Zhao Heming" <heming.zhao at suse.com>
Sent: Wednesday, March 24, 2021 6:09:09 AM
Subject: [PATCH] [PATCH] stable-2.02 - lvresize: deny operation on swap dev without force option

When lvmetad is active on system and some memory pages of lvmetad
swapout, user may issue lvextend/lvresize on swap LV. The resize
operation will suspend & resume swap device (by reload dm table).
After suspended swap device, lvmetad will be in UN status for waiting
swapin pages from suspended swap dev. lvmetad will hung, then
lvresize will fail to conection to lvmetad. then the resize operation
will fail, lvresize leaves suspended swap, the logic dead lock is
happending.

 
Hi

It seems there is something wrong elsewhere.
There should be no contact to lvmetad while ANY devices are in suspend state.
Maybe something got reshuffled into wrong place.

Can you please provide  'lvextend -vvvvv'  when it hangs ?

Regards

Zdenek