[LDM #SEL-532612]: ldm assertion failed "ldm_xdr.c", line 19

Daryl,

> Had a system lock up today with some kernel bug, after restarting.  I
> couldn't get LDM to start up.  This is on RHEL6 64 bit.  I built 6.9.7
> just now and got it to start by removing its upstream feed request.  I
> didn't try to see if 6.9.7 would fail in the same manner below.  Figured I
> would pass this along.
> 
> I rebuilt the queue as well, same issue.
> 
> http://www.unidata.ucar.edu/support/help/MailArchives/ldm/msg06039.html
> 
> thanks,
> daryl
> 
> Mar 22 15:12:11 iem60 ldmd[3726] NOTE: Starting Up (version: 6.9.4; built:
> Mar 22 2011 15:07:50)
> Mar 22 15:12:11 iem60 ldmd[3726] NOTE: Using local address 0.0.0.0:388
> Mar 22 15:12:11 iem60 iem50.local[3728] NOTE: Starting Up(6.9.4):
> iem50.local:388 20110322191211.763 TS_ENDT {{EXP,  ".*"}}
> Mar 22 15:12:11 iem60 iem50.local[3728] NOTE: Previous product-information
> file ".bf45fa890805d0cb48b836f81ad25689.info" doesn't exist
> Mar 22 15:12:11 iem60 iem50.local[3728] NOTE: LDM-6 desired product-class:
> 20110322191211.764 TS_ENDT {{EXP,  ".*"},{NONE,
> "SIG=6706e9b955f1ca7b959125d0bdf2c81b"}}
> Mar 22 15:12:11 iem60 iem50.local[3728] NOTE: Upstream LDM-6 on
> iem50.local is willing to be a primary feeder
> Mar 22 15:12:11 iem60 pqact[3727] NOTE: Starting Up
> Mar 22 15:12:11 iem60 pqact[3727] NOTE: Starting from insertion-time
> 2011-03-22 20:11:40.550391 UTC
> Mar 22 15:12:13 iem60 192.168.0.50[3785] NOTE: Data-product with signature
> 32b2a1b79105ac1b34834905deef0f21 wasn't found in product-queue
> Mar 22 15:12:13 iem60 iem50(feed)[3785] NOTE: Starting Up(6.9.4/6):
> 20110322191212.663 TS_ENDT {{EXP,  "(.*)"}},
> SIG=32b2a1b79105ac1b34834905deef0f21, Primary
> Mar 22 15:12:13 iem60 iem50(feed)[3785] NOTE: topo:  iem50 {{EXP, (.*)}}
> Mar 22 15:12:23 iem60 iem50.local[3728] ERROR: assertion "pIf(xdrs->x_op
> == XDR_ENCODE, *cpp != NULL && **cpp != 0)" failed: file "ldm_xdr.c", line
> 19

Interesting! Apparently, you had debugging enabled and the LDM was trying to 
XDR and zero-length string. Some kind of weird data-product perhaps?

> Mar 22 15:12:25 iem60 ldmd[3726] NOTE: child 3728 terminated by signal 6
> Mar 22 15:12:25 iem60 ldmd[3726] NOTE: Killing (SIGTERM) process group
> Mar 22 15:12:25 iem60 ldmd[3726] NOTE: Exiting
> Mar 22 15:12:25 iem60 pqact[3727] NOTE: Exiting
> Mar 22 15:12:25 iem60 iem50(feed)[3785] NOTE: Exiting
> Mar 22 15:12:25 iem60 ldmd[3726] NOTE: Terminating process group
> Mar 22 15:12:25 iem60 pqact[3727] NOTE: Behind by 1.83172 s
> Mar 22 15:13:55 iem60 pqcheck[14353] NOTE: Starting Up (14301)
> Mar 22 15:13:55 iem60 pqcheck[14353] NOTE: Exiting
> Mar 22 15:14:09 iem60 pqcheck[14965] NOTE: Starting Up (14915)
> Mar 22 15:14:09 iem60 pqcheck[14965] NOTE: Exiting

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: SEL-532612
Department: Support LDM
Priority: Normal
Status: Closed