[LTP] TI-RPC test failures; network configuration related?

[Hanxiao Chen (Fujitsu)]

> -----邮件原件-----
> 发件人: ltp <ltp-bounces+chenhx.fnst=fujitsu.com@lists.linux.it> 代表 Chuck
> Lever III via ltp
> 发送时间: 2024年9月12日 23:50
> 收件人: ltp@lists.linux.it
> 主题: Re: [LTP] TI-RPC test failures; network configuration related?
> 
> 
> 
> > On Aug 29, 2024, at 3:35 PM, Chuck Lever III <chuck.lever@oracle.com>
> wrote:
> >
> > For a while now my nightly "runltp -f net.tirpc_tests" have
> > thrown a bunch of failures but I haven't had time to look
> > into it until now. Without modification, about half of the
> > client test programs segfault.
> >
> > Here's a sample test failure. I instrumented the
> > tirpc_clnt_destroy test case and the rpc_tests.sh script as
> > shown below, but I still don't understand why clnt_create(3t)
> > is failing.
> >

Hi, Chuck

I can reproduce this issue on my CentOS 10 stream machine with upstream LTP.
libtirpc-1.3.5-0.el10.x86_64
rpcbind-1.2.7-2.el10.x86_64

In my limited investigation, it looks like libtirpc returns NULL
when LTP trying to create client.

937 __rpcb_findaddr_timed(program, version, nconf, host, clpp, tp)
...
1023                 CLNT_CONTROL(client, CLSET_VERS, (char *)(void *)&vers);
1024                 clnt_st = CLNT_CALL(client, (rpcproc_t)RPCBPROC_GETADDR,
1025                     (xdrproc_t) xdr_rpcb, (char *)(void *)&parms,
1026                     (xdrproc_t) xdr_wrapstring, (char *)(void *) &ua, *tp);

The ua got "" of line 1026

1027                 switch (clnt_st) {
1028                 case RPC_SUCCESS:
1029                         if ((ua == NULL) || (ua[0] == 0)) {
1030                                 /* address unknown */
1031                                 rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
1032                                 goto error;
1033                         }

May be rpcbproc_getaddr_com of rpcbind broken?

Hi, Ma

Can you fix tirpc cases to let LTP get rid of segfault?

Regards,
- Chen