Re: [PATCH 1/3] Change random seeds to 64bit and drop re-crcing

2011-09-29 Thread H.J. Lu
On Wed, Sep 28, 2011 at 5:49 AM, Andi Kleen wrote: > From: Andi Kleen > > I had some trouble with random build failures in a large LTO project > and it turned out to be random seed collisions in a highly parallel build > (thanks to Honza for suggesting that) > > There were multiple problems: > -

[PATCH 1/3] Change random seeds to 64bit and drop re-crcing

2011-09-28 Thread Andi Kleen
From: Andi Kleen I had some trouble with random build failures in a large LTO project and it turned out to be random seed collisions in a highly parallel build (thanks to Honza for suggesting that) There were multiple problems: - The way to generate the random seed is not very random (millisecon