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bug#21720: Building gcc fails at target s-attrtab

From: Aljosha Papsch
Subject: bug#21720: Building gcc fails at target s-attrtab
Date: Sun, 25 Oct 2015 13:35:22 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.3.0

On 24.10.2015 22:35, Efraim Flashner wrote:
the error message is near the end of the log: ../../gcc-4.9.3/gcc/tree-ssa-ccp.c:2751:1: fatal error: error writing to /tmp/nix-build-gcc-4.9.3.drv-0/cc5mntgw.s: No space left on device } I assume /tmp is part of / on your system. How much free space do you have there? That's where the building is done.

That was the nudge in the right direction. I didn't think of /tmp being mounted as tmpfs, which lead to wrong assumption that guix had 85GB space left. /tmp is mounted with default options, which means size is half the RAM (2GB). To increase tmpfs size, I remounted /tmp with options "size=20G". These 20GB are backed by 50GB swap, which I increased by reusing an old partition of another system as swap.

Now building zile suceeds and guix installed it successfully. I guess the bug can be closed now as it appears to be a sole issue of memory resources on this machine. Utilizing gnuplot again, the peak of RAM usage is at approx. 1.8GB, while swap usage is at approx. 1.3GB. The 20GB tmpfs and 50GB swap is a bit much and I'll reduce it to 3GB tmpfs and 6GB swap. I will see if this is sufficient in daily guix usage.


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