On Wed, Nov 15, 2017 at 02:30:54PM +0500, Lev Lamberov wrote: > Hi Adrian,
Hi Lev, > Ср 15 ноя 2017 @ 08:06 Adrian Bunk <b...@debian.org>: >... > > Same randomness on powerpcspe, and both have it already with 7.6.1+dfsg-1: > > https://buildd.debian.org/status/logs.php?pkg=swi-prolog&arch=powerpc > > https://buildd.debian.org/status/logs.php?pkg=swi-prolog&arch=powerpcspe >... > At least, I cannot think of any other reason that 7.6.1-1 > was built successfully on mips and 7.6.1-2 failed, where the only one > change is disabling Java tests (due to CVE-2017-1000364). I've uploaded > 7.6.1-2 on the next day after 7.6.1-1 upload. you already quoted the reason: > The main issue > seems to be weaker read/write ordering constraints that break our > lock-free data structures, resulting in more or less random bugs. Based on the mips/powerpc/powerpcspe results one could say that there is a 50% chance that a build attempt fails. That would give a 37.5% probability for 2 builds failing and one succeeding when trying 3 times. Considering the older mips failure and the more frequent powerpc/powerpcspe failures, the 7.6.1-1 success might just have been "luck". > Cheers! > Lev cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed
