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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: Fri, 23 Oct 2015 22:56:04 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.3.0

On 23.10.2015 01:04, Aljosha Papsch wrote:
It got 4GB of RAM but none of swap. dmesg really shows something, please see attachment. I'll try hooking up some swap and see how it goes.

I hooked up an old 4GB swap partition and during the build process it was used a bit. This time, the build process got a little further, but it got stuck again at another phase. Please see the attached build log. The error message is "No space left on device", though the file system on wich guix runs has 85GB left.

Dmesg isn't helpful this time, an error should appear between these two messages: [17910.001324] Adding 3948540k swap on /dev/mapper/fed-swap. Priority:-1 extents:1 across:3948540k FS [18118.026198] wlp0s26u1u2: AP 00:00:00:00:00:00 changed bandwidth, new config is 2412 MHz, width 1 (2412/0 MHz)

For the fun of it, I plotted the memory consumption using gnuplot. While the build process was busy, I captured memory usage with "free -s1 > memory.log". A little scheme helped transform that into a data file for gnuplot. The x axis is the datum, e.g. nth capture. Near the end, free memory goes up sharply. This is where the build process failed and the machine went idle.


Attachment: 6pakkby1qg17ssj4k9nrhh9iswii49-gcc-4.9.3.drv
Description: Text document

Attachment: swap-plot.png
Description: PNG image

Attachment: memory-plot.png
Description: PNG image

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