Hmm. We used to handle that ;) Matt
On Thu, Jan 25, 2018 at 9:11 PM, Pradeep <pradeeptho...@gmail.com> wrote: > If recv() returns EAGAIN, then svc_vc_recv() returns without rearming the > epoll_fd. How does it get back to svc_vc_recv() again? > > On Wed, Jan 24, 2018 at 9:26 PM, Pradeep <pradeeptho...@gmail.com> wrote: >> >> Hello, >> >> I seem to be hitting a corner case where ganesha (2.6-rc2) does not >> respond to a RENEW request from 4.0 client. Enabled the debug logs and >> noticed that NFS layer has not seen the RENEW request (I can see it in >> tcpdump). >> >> I collected netstat output periodically and found that there is a time >> window of ~60 sec where the receive buffer size remains the same. This means >> the RPC layer somehow missed a 'recv' call. Now if I enable debug on TIRPC, >> I can't reproduce the issue. Any pointers to potential races where I could >> enable selective prints would be helpful. >> >> svc_rqst_epoll_event() resets SVC_XPRT_FLAG_ADDED. Is it possible for >> another thread to svc_rqst_rearm_events()? In that case if >> svc_rqst_epoll_event() could reset the flag set by svc_rqst_rearm_events and >> complete the current receive before the other thread could call epoll_ctl(), >> right? >> >> Thanks, >> Pradeep > > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Nfs-ganesha-devel mailing list > Nfs-ganesha-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel > -- Matt Benjamin Red Hat, Inc. 315 West Huron Street, Suite 140A Ann Arbor, Michigan 48103 http://www.redhat.com/en/technologies/storage tel. 734-821-5101 fax. 734-769-8938 cel. 734-216-5309 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Nfs-ganesha-devel mailing list Nfs-ganesha-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel
