On Tue, 8 Mar 2016, Mark Valites wrote: > On 03/08/2016 03:16 PM, Benjamin Coddington wrote: > > > That's where we want the backtrace; that's when you should do 'bt'. Feel > > free to leave out everything else. > > Wow - Sorry about that. > > (gdb) handle SIG37 nostop > Signal Stop Print Pass to program Description > SIG37 No Yes Yes Real-time event 37 > (gdb) continue > Continuing. > > Program received signal SIG37, Real-time event 37. > > Program received signal SIG37, Real-time event 37. > > Program received signal SIG37, Real-time event 37. > > Program received signal SIG37, Real-time event 37. > > Program received signal SIG37, Real-time event 37. > > Program received signal SIGSEGV, Segmentation fault. > __strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:212 > 212 movlpd (%rdi), %xmm1 > (gdb) bt > #0 __strcmp_ssse3 () at ../sysdeps/x86_64/strcmp.S:212 > #1 0x00007fec0dfb60f4 in find_keytab_entry (context=0x7fec0f82d6d0, > kt=0x7fec0f829a10, tgtname=tgtname@entry=0x7fec0f829910 > "ubfs1.itorg.ad.buffalo.edu", > kte=kte@entry=0x7fffc8ca1ec0, svcnames=svcnames@entry=0x7fffc8ca1e90) at > krb5_util.c:894 > #2 0x00007fec0dfb6ded in gssd_refresh_krb5_machine_credential > (hostname=0x7fec0f829910 "ubfs1.itorg.ad.buffalo.edu", ple=ple@entry=0x0, > service=service@entry=0x0) > at krb5_util.c:1311 > #3 0x00007fec0dfb4030 in krb5_use_machine_creds > (clp=clp@entry=0x7fec0f82bcb0, uid=uid@entry=0, tgtname=tgtname@entry=0x0, > service=service@entry=0x0, > rpc_clnt=rpc_clnt@entry=0x7fffc8ca2000) at gssd_proc.c:1086 > #4 0x00007fec0dfb4416 in process_krb5_upcall (clp=clp@entry=0x7fec0f82bcb0, > uid=0, fd=13, tgtname=tgtname@entry=0x0, service=service@entry=0x0) at > gssd_proc.c:1222 > #5 0x00007fec0dfb4d03 in handle_gssd_upcall (clp=clp@entry=0x7fec0f82bcb0) at > gssd_proc.c:1413 > #6 0x00007fec0dfb264e in scan_poll_results (ret=1) at gssd_main_loop.c:85 > #7 gssd_poll (nfds=<optimized out>, fds=<optimized out>) at > gssd_main_loop.c:201 > #8 gssd_run () at gssd_main_loop.c:258 > #9 0x00007fec0dfb111a in main (argc=<optimized out>, argv=0x7fffc8ca2418) at > gssd.c:216 > (gdb) continue > Continuing. > > Program terminated with signal SIGSEGV, Segmentation fault. > The program no longer exists. > (gdb) > > FWIW, the ubfs1.itorg.ad.buffalo.edu hostname mentioned in the backtrace is > the nfs server. OK, that's pretty certainly this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1313090 You can add your email to the CC list there, and leave a comment stating you're hitting it as well. If you have Red Hat support, you can open a support case. The patch in that BZ should fix it up for you, or you can use the previous nfs-utils version until that BZ changes to CLOSED, at which time a fixed nfs-utils pacakge will be available. Nice job working through gdb over email, and sorry for the trouble. Ben -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
