I'm having a tough time trying to get mysql rebuilt in rawhide: the ppc build keeps failing like this: http://koji.fedoraproject.org/koji/getfile?taskID=335275&name=build.log
Normally what a failure in execution_constants means is that the configuration constant STACK_MIN_SIZE has to be increased, because the error-recovery code needs more stack space than it did before. We have for years had to run that a bit higher than what mysql.com ships, but up to now 16384 has worked fine across all arches (all 7 redhat arches, not just Fedora). Sometime since 13 Dec 2007, however, the behavior of the ppc arch changed in rawhide, and now even boosting the number by 50% (to 24K) doesn't persuade it to work. I could try larger numbers, at the cost of also increasing DEFAULT_THREAD_STACK which is a pretty user-visible number. I am wondering if this isn't a bug in rawhide, though. Has gcc started making PPC stack frames a lot larger than before? Maybe glibc has gotten more stack-hungry? I'd guess on the problem being in gettext() or related code, if it is a glibc change, but I haven't tracked it down exactly.
I can't prove at the moment that the problem affects *only* PPC, but given that that build always dies first it seems pretty likely.
If anyone has a clue what to look at, I'd appreciate it.
regards, tom lane