Frank,

             A question regarding the status of delegation on recent releases. Are the delegations supported or tested thoroughly in 4.0.5 or 3.5 Ganesha release.

Thanks,

Sunil Bhargo

From: Frank Filz <ffilzlnx@mindspring.com>
Sent: Saturday, April 30, 2022 4:45 AM
To: Sunil Bhargo <sbhargo@vmware.com>; devel@lists.nfs-ganesha.org
Cc: dang@redhat.com; Sriram Patil <sriramp@vmware.com>
Subject: RE: [NFS-Ganesha-Devel] Ganesha crash while doing Delegation recall

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V2.8 is pretty old and no longer supported. Additionally, I don’t know if delegations have been tested or supported recently at all so I doubt there’s any fixes but you could certainly try a newer release, or look through the git history.

Frank

From: Sunil Bhargo [mailto:sbhargo@vmware.com]
Sent: Thursday, April 28, 2022 6:21 AM
To: devel@lists.nfs-ganesha.org
Cc: ffilzlnx@mindspring.com; dang@redhat.com; Sriram Patil <sriramp@vmware.com>
Subject: [NFS-Ganesha-Devel] Ganesha crash while doing Delegation recall

Hi,

        Currently seeing the following crash and it is a recurrent crash. We are using ganesha 2.8.4. Can someone please help in telling if this is a known issue and whether it is fixed in later releases ?

(gdb) bt

#0  0x00007fcc26df6570 in pthread_mutex_lock () from /lib/libpthread.so.0

#1  0x00007fcc2760906c in svc_rqst_expire_insert () from /lib/libntirpc.so.1.8

#2  0x00007fcc275f2e19 in clnt_req_callback () from /lib/libntirpc.so.1.8

#3  0x00007fcc27855c3e in nfs_rpc_call () from /lib/libganesha_nfsd.so.2.8

#4  0x00007fcc27856a13 in nfs_rpc_cb_single () from /lib/libganesha_nfsd.so.2.8

#5  0x00007fcc278837a4 in delegrecall_one () from /lib/libganesha_nfsd.so.2.8

#6  0x00007fcc27884422 in delegrecall_impl () from /lib/libganesha_nfsd.so.2.8

#7  0x00007fcc27886900 in queue_delegrecall () from /lib/libganesha_nfsd.so.2.8

#8  0x00007fcc278e6da9 in fridgethr_start_routine () from /lib/libganesha_nfsd.so.2.8

#9  0x00007fcc26df3f87 in start_thread () from /lib/libpthread.so.0

#10 0x00007fcc268755bf in clone () from /lib/libc.so.6

This seems like a channel is removed while it is being accessed by the backchannel.

Thanks,

Sunil Bhargo

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