Re: [gentoo-user] Gcc 5.3

[Alan Grimes <ALONZOTG@verizon.net>]

David Haller wrote:
> Hello,
>
> On Thu, 24 Dec 2015, Alan Grimes wrote:
>> Hey, thanks for putting out gcc 5.3...
>>
>> Unfortunately, it fails to bootstrap on my machine. I am getting
>> differences between the stage 2 and stage 3 compilers and it's dying... =(
> What compiler and C(XX)FLAGS are you using? It builds nicely with
> gcc-4.9 (and rather agressive flags) here. With how many processes
> (MAKEOPTS) are you compiling?.

6, one per core, because it doesn't go to 100% utilization, I can
continue to use the machine normally for desktop.

> Also, compiling gcc might expose flaky RAM (removing and reseating the
> RAM DIMMs might help there[0]). Have you e.g. encoded stuff with
> mencoder or ffmpeg lately[1]? If you're compiling with any MAKEOPTS
> '-j1' it could be the same phenomenon as I had in [1], so try with
> -j1. If that works ... Consider using prime95/mprime[2] for a test.

Been through that, I'm fairly confident with the integrity of the
machine right now.

> -dnh
>
> [0] stuff expands and shrinks depending on temps, so connections can
>     get flaky even if the box isn't moved ;)
>
> [1] I've had mencoder segfault on me reproducibly on one box after
>     20-30 mins encoding with one process, and <= 10mins with two
>     processes. Memtest86 found nothing in one round. New RAM (replaced
>     on guarantee :) cured the problem for good.
>
> [2] http://www.mersenne.org/download/#download


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