Re: [PATCH librados2-perl] do not shut down the handle twice if a signal arrives at exit

[Maximiliano Sandoval <m.sandoval@proxmox.com>]

Kefu Chai <k.chai@proxmox.com> writes:

> When a pveceph worker finishes, the CLI sends SIGTERM to its process
> group, which includes the pverados child. That child is often already
> shutting down the handle after seeing EOF, so the handler then calls
> rados_shutdown() on the freed handle and the child segfaults.
>
> The handlers outlived the eval anyway, as the 'local' only covered
> $SIG{HUP}. So ignore the signals before shutting down, and install the
> handlers first thing in the child.
>
> Signed-off-by: Kefu Chai <k.chai@proxmox.com>

Tested that librados does not segfault anymore when doing the following

- creating an EC pool with --erasure-coding k=4,m=2 --pg_num=64
- ceph -s
- allocating a 1G image in the pool
- destroying the data and metadata pools
- ceph -s

At least on my 3-node cluster the image cannot be allocated due to the
issue described at
https://lore.proxmox.com/pve-devel/20261021065240.3495098-1-k.chai@proxmox.com/T/,
but that is a different issue.

Tested-by: Maximiliano Sandoval <m.sandoval@proxmox.com>

-- 
Maximiliano