db8c27f499
It was reported that a NFSv4.1 Linux client mount against a FreeBSD12 server was hung, with the TCP connection in CLOSE_WAIT state on the server. When a NFSv4.1/4.2 mount is done and the back channel is bound to the TCP connection, the soclose() is delayed until a new TCP connection is bound to the back channel, due to a reference count being held on the SVCXPRT structure in the krpc for the socket. Without the soclose() call, the socket will remain in CLOSE_WAIT and this somehow caused the Linux client to hang. This patch adds calls to soshutdown(.., SHUT_WR) that are performed when the server side krpc sees that the socket is no longer usable. Since this can be done before the back channel is bound to a new TCP connection, it allows the TCP connection to proceed to CLOSED state. PR: 254590 Reported by: jbreitman@tildenparkcapital.com Reviewed by: tuexen Comments by: kevans MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D29526 |
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| .. | ||
| rpcsec_gss | ||
| rpcsec_tls | ||
| auth_none.c | ||
| auth_unix.c | ||
| auth.h | ||
| authunix_prot.c | ||
| clnt_bck.c | ||
| clnt_dg.c | ||
| clnt_rc.c | ||
| clnt_stat.h | ||
| clnt_vc.c | ||
| clnt.h | ||
| getnetconfig.c | ||
| krpc.h | ||
| netconfig.h | ||
| nettype.h | ||
| pmap_prot.h | ||
| replay.c | ||
| replay.h | ||
| rpc_callmsg.c | ||
| rpc_com.h | ||
| rpc_generic.c | ||
| rpc_msg.h | ||
| rpc_prot.c | ||
| rpc.h | ||
| rpcb_clnt.c | ||
| rpcb_clnt.h | ||
| rpcb_prot.c | ||
| rpcb_prot.h | ||
| rpcm_subs.h | ||
| rpcsec_gss.h | ||
| rpcsec_tls.h | ||
| svc_auth_unix.c | ||
| svc_auth.c | ||
| svc_auth.h | ||
| svc_dg.c | ||
| svc_generic.c | ||
| svc_vc.c | ||
| svc.c | ||
| svc.h | ||
| types.h | ||
| xdr.h | ||