Strange popen behavior on xen builders?

[Orion Poplawski]

I'm running into some very strange behavior trying to build plplot which 
uses cmake.

Scratch build here: 
http://koji.fedoraproject.org/koji/taskinfo?taskID=765779

i386 build log (on x86-7 - real host?):
http://koji.fedoraproject.org/koji/getfile?taskID=765782&name=build.log

x86_64 build log (on xenbuilder2 - xen host):
http://koji.fedoraproject.org/koji/getfile?taskID=765781&name=build.log

+ /usr/bin/cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr 
-DCMAKE_INSTALL_LIBDIR:PATH=/usr/lib64 
-DINCLUDE_INSTALL_DIR:PATH=/usr/include 
-DLIB_INSTALL_DIR:PATH=/usr/lib64 -DSYSCONF_INSTALL_DIR:PATH=/etc 
-DSHARE_INSTALL_PREFIX:PATH=/usr/share -DLIB_SUFFIX=64 
-DBUILD_SHARED_LIBS:BOOL=ON .. -DENABLE_ada:BOOL=ON -DENABLE_d:BOOL=ON 
-DENABLE_ocaml:BOOL=ON -DENABLE_pdl:BOOL=ON -DHAVE_PTHREAD:BOOL=ON 
-DPL_FREETYPE_FONT_PATH:PATH=/usr/share/fonts/freefont -DPLD_aqt:BOOL=ON 
-DPLD_conex:BOOL=ON -DPLD_dg300:BOOL=ON -DPLD_imp:BOOL=ON 
-DPLD_linuxvga:BOOL=ON -DPLD_ljii:BOOL=ON -DPLD_ljiip:BOOL=ON 
-DPLD_mskermit:BOOL=ON -DPLD_ntk:BOOL=ON -DPLD_pstex:BOOL=ON 
-DPLD_svg:BOOL=ON -DPLD_tek4010:BOOL=ON -DPLD_tek4010f:BOOL=ON 
-DPLD_tek4107:BOOL=ON -DPLD_tek4107f:BOOL=ON -DPLD_versaterm:BOOL=ON 
-DPLD_vlt:BOOL=ON -DPLD_xterm:BOOL=ON -DPLD_wxwidgets:BOOL=ON 
-DBUILD_DOC:BOOL=ON -DBUILD_TEST:BOOL=ON
Linux
2.6.18-92.1.6.el5xen

and it hangs here.  I looks like cmake is running "uname" through popen 
but the output goes to the output and cmake is stuck reading a bad file 
descriptor.

I can reproduce here on my F8 x86_64 xen builder, but it hangs on the 
i386 build not the x86_64.  strace of the hung cmake shows:

read(4286667132, 0x55577000, 8192)
   = -1 EBADF (Bad file descriptor)

over and over.

Anyone else seeing anything like this?

Sorry I don't have anything more concrete but I'm out for a long weekend 
and thought I'd get this out there...

-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
3380 Mitchell Lane                  orion at cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com