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Hi Daniel
Not reproducible yet unfortunately, not sure what would have triggered it,
the workload is user home directories so a very general unstructured
workload. My first suspicion is usually web browser cache as that doesn't
usually play well with NFS home dirs.
This has been running for a few months now with same workload and it's the
first time I've seen this particular issue. I'll keep an eye on it and
report back if I get any more info.
Thanks,
On Tue, 22 Oct 2019, 16:09 Daniel Gryniewicz, <d...@redhat.com> wrote:
> I haven't seen anything like this before. The problem is that the
> resarray in the compound is corrupted somehow (so it's actually a
> Ganesha bug). Is this reproducible? Do you have logs? Do you know the
> workload that triggered this?
>
> Daniel
>
> On 10/22/19 5:57 AM, David C wrote:
> > Hi All
> >
> > I've hit a segfault I've not seen before, seems related to ntirpc,
> > please see backtrace:
> >
> > (gdb) bt
> > #0 xdr_putenum (enumv=<error reading variable: Cannot access memory at
> > address 0x0>, xdrs=0x7fd831761490) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/ntirpc/rpc/xdr.h:584
> > #1 xdr_enum (xdrs=0x7fd831761490, ep=0x0) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/ntirpc/rpc/xdr_inline.h:405
> > #2 0x0000000000456749 in xdr_nfs_opnum4 (objp=0x0, xdrs=0x7fd831761490)
> > at /usr/src/debug/nfs-ganesha-2.7.3/include/nfsv41.h:8065
> > #3 xdr_nfs_resop4 (xdrs=0x7fd831761490, objp=0x0) at
> > /usr/src/debug/nfs-ganesha-2.7.3/include/nfsv41.h:8433
> > #4 0x0000000000458afe in xdr_array_encode (cpp=<optimized out>,
> > sizep=<optimized out>, xdr_elem=0x456730 <xdr_nfs_resop4>, selem=160,
> > maxsize=1024, xdrs=0x7fd831761490) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/ntirpc/rpc/xdr_inline.h:851
> > #5 xdr_array (xdr_elem=0x456730 <xdr_nfs_resop4>, selem=160,
> > maxsize=1024, sizep=<optimized out>, cpp=<optimized out>,
> > xdrs=0x7fd831761490) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/ntirpc/rpc/xdr_inline.h:894
> > #6 xdr_COMPOUND4res (xdrs=0x7fd831761490, objp=<optimized out>) at
> > /usr/src/debug/nfs-ganesha-2.7.3/include/nfsv41.h:8779
> > #7 0x00007fdc0cd0f89b in svc_vc_reply (req=0x7fd831777d30) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_vc.c:887
> > #8 0x0000000000451337 in nfs_rpc_process_request
> > (reqdata=0x7fd831777d30) at
> > /usr/src/debug/nfs-ganesha-2.7.3/MainNFSD/nfs_worker_thread.c:1384
> > #9 0x0000000000450766 in nfs_rpc_decode_request (xprt=0x7fdb1c00a0d0,
> > xdrs=0x7fd831f6e190) at
> >
> /usr/src/debug/nfs-ganesha-2.7.3/MainNFSD/nfs_rpc_dispatcher_thread.c:1345
> > #10 0x00007fdc0cd0d07d in svc_rqst_xprt_task (wpe=0x7fdb1c00a2e8) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:769
> > #11 0x00007fdc0cd0d59a in svc_rqst_epoll_events (n_events=<optimized
> > out>, sr_rec=0x53136a0) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:941
> > #12 svc_rqst_epoll_loop (sr_rec=<optimized out>) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:1014
> > #13 svc_rqst_run_task (wpe=0x53136a0) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/svc_rqst.c:1050
> > #14 0x00007fdc0cd15123 in work_pool_thread (arg=0x7fd86000a960) at
> > /usr/src/debug/nfs-ganesha-2.7.3/libntirpc/src/work_pool.c:181
> > #15 0x00007fdc0b2cddd5 in start_thread (arg=0x7fdafffff700) at
> > pthread_create.c:307
> > #16 0x00007fdc0a444ead in clone () at
> > ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
> >
> > Mem usage on the server was quite high at the time so wonder if that's
> > related?
> >
> > nfs-ganesha-2.7.3-0.1.el7.x86_64
> > nfs-ganesha-ceph-2.7.3-0.1.el7.x86_64
> > libcephfs2-14.2.1-0.el7.x86_64
> > librados2-14.2.1-0.el7.x86_64
> >
> > Thanks,
> >
> >
> > _______________________________________________
> > Support mailing list -- supp...@lists.nfs-ganesha.org
> > To unsubscribe send an email to support-le...@lists.nfs-ganesha.org
> >
>
>
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