Sure - I will give it a try. Thanks Daniel.
On 1/15/18, Daniel Gryniewicz <d...@redhat.com> wrote:
> Hi, Pradeep.
>
> There's been 6 sets of code changes to dupreq since dev-22, including
> refcount bugfixes. Can you try with 2.6-rc2?
>
> Daniel
>
> On 01/13/2018 08:50 PM, Pradeep wrote:
>> Hello,
>>
>> I'm seeing a segfault in nfs_dupreq_finish() with 2.6.dev.22. This is
>> when using NFSv4.0 clients. The dupreq_entry seems to be malformed
>> (drc is still NULL)
>>
>> #0 0x00007f761902023b in raise () from /lib64/libpthread.so.0
>> #1 0x0000000000442a67 in crash_handler (signo=11,
>> info=0x7f75ed745730, ctx=0x7f75ed745600)
>> at /usr/src/debug/nfs-ganesha-2.6-dev.22/MainNFSD/nfs_init.c:263
>> #2 <signal handler called>
>> #3 0x00007f761901abd0 in pthread_mutex_lock () from
>> /lib64/libpthread.so.0
>> #4 0x00000000004e01d6 in nfs_dupreq_finish (req=0x7f75e1cab800,
>> res_nfs=0x7f75db135380)
>> at /usr/src/debug/nfs-ganesha-2.6-dev.22/RPCAL/nfs_dupreq.c:1174
>> #5 0x0000000000459064 in nfs_rpc_process_request
>> (reqdata=0x7f75e1cab800)
>> at
>> /usr/src/debug/nfs-ganesha-2.6-dev.22/MainNFSD/nfs_worker_thread.c:1416
>> #6 0x0000000000459493 in nfs_rpc_valid_NFS (req=0x7f75e1cab800)
>>
>> (gdb) f 4
>> #4 0x00000000004e01d6 in nfs_dupreq_finish (req=0x7f75e1cab800,
>> res_nfs=0x7f75db135380)
>> at /usr/src/debug/nfs-ganesha-2.6-dev.22/RPCAL/nfs_dupreq.c:1174
>> 1174 PTHREAD_MUTEX_lock(&drc->mtx);
>> (gdb) p *dv
>> $1 = {rbt_k = {left = 0x0, right = 0x0, parent = 0x0, red = 2, gen =
>> 103478}, fifo_q = {tqe_next = 0x7f7601109a80,
>> tqe_prev = 0x7f75e49a62e0}, mtx = {__data = {__lock = 0, __count =
>> 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0,
>> __elision = 0, __list = {__prev = 0x0, __next = 0x0}}, __size =
>> '\000' <repeats 39 times>, __align = 0}, hin = {drc = 0x0,
>> addr = {ss_family = 0, __ss_padding = '\000' <repeats 117 times>,
>> __ss_align = 0}, tcp = {rq_xid = 0, checksum = 0},
>> rq_prog = 0, rq_vers = 0, rq_proc = 0}, hk = 0, state =
>> DUPREQ_COMPLETE, refcnt = 2, res = 0x7f75db135380,
>> timestamp = 1515724505}
>>
>> (gdb) p *req
>> $2 = {rq_xprt = 0x7f75df908400, rq_clntname = 0x0, rq_svcname = 0x0,
>> rq_xdrs = 0x7f75c8047400, rq_u1 = 0x7f75db135380,
>> rq_u2 = 0x7f75db135380, rq_cksum = 8804038937737838967, rq_auth =
>> 0x7f7618e07d70 <svc_auth_none>, rq_ap1 = 0x0, rq_ap2 = 0x0,
>> rq_msg = {rm_xid = 2828691980, rm_direction = REPLY, ru = {RM_cmb =
>> {cb_rpcvers = 2}, RM_rmb = {rp_stat = MSG_ACCEPTED, ru = {
>> RP_ar = {ar_stat = SUCCESS, ru = {AR_versions = {low =
>> 4549240, high = 0}, AR_results = {
>> proc = 0x456a78 <xdr_COMPOUND4res>, where =
>> 0x7f75db135380}}, ar_verf = {oa_flavor = 0, oa_length = 0,
>> oa_body = '\000' <repeats 399 times>}}, RP_dr = {rj_stat
>> = RPC_MISMATCH, ru = {RJ_versions = {low = 0,
>> high = 4549240}, RJ_why = AUTH_OK}}}}}, rm_xdr = {proc
>> = 0x4569bf <xdr_COMPOUND4args>, where = 0x7f75e1cabf08},
>>
>> Not sure how most of the fields in dupreq_entry can be zeros when it
>> reaches nfs_dupreq_finish() - at least rq_xid, rq_prog etc., should
>> have been filled.
>>
>> If this is a known issue, please let me know.
>>
>> Thanks,
>>
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>
>
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