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From: Dan Shelton <dan.f.shelton@gmail.com>
Date: Fri, 26 Apr 2024 03:57:03 +0200
Message-ID: <CAAvCNcDahJvPdhFj=WYBHKUVPVz+oCZcXeqVXhT3s8b6B0kiEA@mail.gmail.com>
Subject: Re: kernel update to 6.8.2 broke idmapd group mapping
To: Linux NFS Mailing List <linux-nfs@vger.kernel.org>
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On Sat, 30 Mar 2024 at 12:56, Dan Shelton <dan.f.shelton@gmail.com> wrote:
>
> Hello!
>
> I have updated my Debian 11 with the Linux 6.8.2 kernel, running
> rpc.nfsd with various NFSV4 clients.
> Userland stayed exactly the same, so neither idmapd or nfs-utils were changed.
>
> But I now see lots of weird group names (not usernames, they are
> normal) from idmapd, but not all group name mappings are affected:
> Mar 28 19:15:18 ingramnode86 rpc.idmapd[400]: nfsdcb:
> authbuf=*,10.2.66.30 authtype=group
> Mar 28 19:15:18 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> calling nsswitch->name_to_gid
> Mar 28 19:15:18 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> nsswitch->name_to_gid returned -22
> Mar 28 19:15:18 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid: final
> return value is -22
> Mar 28 19:15:18 ingramnode86 rpc.idmapd[400]: Server : (group) name
> "^PM-!M-?M-4q" -> id "65534"
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfsdcb:
> authbuf=*,10.2.66.30 authtype=group
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> calling nsswitch->name_to_gid
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> nsswitch->name_to_gid returned -22
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid: final
> return value is -22
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: Server : (group) name
> "PM-^^M-^OM-4q" -> id "65534"
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfsdcb:
> authbuf=*,10.2.66.30 authtype=group
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> calling nsswitch->name_to_gid
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> nsswitch->name_to_gid returned -22
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid: final
> return value is -22
> Mar 28 19:15:19 ingramnode86 rpc.idmapd[400]: Server : (group) name
> "M-^PM-^]/M-4q" -> id "65534"
> Mar 28 19:15:20 ingramnode86 rpc.idmapd[400]: nfsdcb:
> authbuf=*,10.2.66.30 authtype=group
> Mar 28 19:15:20 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> calling nsswitch->name_to_gid
> Mar 28 19:15:20 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid:
> nsswitch->name_to_gid returned -22
> Mar 28 19:15:20 ingramnode86 rpc.idmapd[400]: nfs4_name_to_gid: final
> return value is -22
> Mar 28 19:15:20 ingramnode86 rpc.idmapd[400]: Server : (group) name
> "M- M- M-^_M-4q" -> id "65534"

Help?

Dan
-- 
Dan Shelton - Cluster Specialist Win/Lin/Bsd