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NFSv4.1: fix mount hang after CREATE_SESSION failure 

When client initialization goes through server trunking discovery, it
schedules the state manager and then sleeps waiting for nfs_client
initialization completion.

The state manager can fail during state recovery, and specifically in
lease establishment as nfs41_init_clientid() will bail out in case of
errors returned from nfs4_proc_create_session(), without ever marking
the client ready. The session creation can fail for a variety of reasons
e.g. during backchannel parameter negotiation, with status -EINVAL.

The error status will propagate all the way to the nfs4_state_manager
but the client status will not be marked, and thus the mount process
will remain blocked waiting.

Fix it by adding -EINVAL error handling to nfs4_state_manager().

Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
This commit is contained in:
Anthony Iliopoulos 2025-08-13 11:00:47 +02:00 committed by Anna Schumaker
parent 191512355e
commit bf75ad0968
1 changed files with 3 additions and 0 deletions
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3
fs/nfs/nfs4state.c
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@ -2744,6 +2744,9 @@ static void nfs4_state_manager(struct nfs_client *clp)
case -ENETUNREACH:
nfs_mark_client_ready(clp, -EIO);
break;
case -EINVAL:
nfs_mark_client_ready(clp, status);
break;
default:
ssleep(1);
break;