git: a7bb120f8b87 - main - nfscl: Add a diagnostic printf() for a "should never happen" case
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Date: Fri, 27 May 2022 21:33:46 UTC
The branch main has been updated by rmacklem: URL: https://cgit.FreeBSD.org/src/commit/?id=a7bb120f8b8735bc4c417b3c8fc2308c3d2964aa commit a7bb120f8b8735bc4c417b3c8fc2308c3d2964aa Author: Rick Macklem <rmacklem@FreeBSD.org> AuthorDate: 2022-05-27 21:32:46 +0000 Commit: Rick Macklem <rmacklem@FreeBSD.org> CommitDate: 2022-05-27 21:32:46 +0000 nfscl: Add a diagnostic printf() for a "should never happen" case When a NFSv4.1/4.2 session to the NFS server (not a pNFS DS) is replaced, the old session should always be marked defunct by nfsess_defunct being set non-zero. However, the hang reported by the PR suggests that this might be the case. This patch adds a printf() to indicate this has somehow happened. PR: 260011 MFC after: 2 weeks --- sys/fs/nfsclient/nfs_clrpcops.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sys/fs/nfsclient/nfs_clrpcops.c b/sys/fs/nfsclient/nfs_clrpcops.c index b1d3ee423194..b785446b1ae6 100644 --- a/sys/fs/nfsclient/nfs_clrpcops.c +++ b/sys/fs/nfsclient/nfs_clrpcops.c @@ -1062,8 +1062,12 @@ nfsrpc_setclient(struct nfsmount *nmp, struct nfsclclient *clp, int reclaim, * in-progress RPCs. */ tsep = NULL; - if (TAILQ_FIRST(&nmp->nm_sess) != NULL) + if (TAILQ_FIRST(&nmp->nm_sess) != NULL) { tsep = NFSMNT_MDSSESSION(nmp); + if (tsep->nfsess_defunct == 0) + printf("nfsrpc_setclient: " + "nfsess_defunct not set\n"); + } TAILQ_INSERT_HEAD(&nmp->nm_sess, dsp, nfsclds_list); /*