> make[2]: *** [/temptools/src/glibc-build/rt/tst-cputimer1.out] Error 1 This is indeed a known kernel issue, IIRC affecting only SMP machines. There are various kernel bugs that may affect some of the nptl and rt tests, often in timing-sensitive ways. I think all known ones are fixed in the current Linus kernel (will be 2.6.16). Thanks, Roland