• Status New
  • Percent Complete
  • Task Type Bug Report
  • Category Packages
  • Assigned To No-one
  • Operating System pentium4
  • Severity Low
  • Priority Medium
  • Reported Version
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: Arch Linux 32
Opened by Andreas Baumann - 21.07.2022
Last edited by Andreas Baumann - 21.07.2022

FS#276 - LTO optimization needs to much memory

7234 build 20 0 1353768 1.2g 18020 R 96.1 64.0 4:27.92 lto1-wpa

xf86-video-intel (this is not exactly a huge package, but maybe the
included X libraries are?)

We lost it on i486 already (because it doesn’t work with newer gcc, or at least
I didn’t investigate how to make it work).

I suggest to get rid of LTO completely.
The problem is patching all the options=(lto), –enable-lto/ –without-lto -D b_lto=tru
etc. which easily creates a maintainance nightmare.

Maybe an easier way to go is to have them similar to the ‘lib32-’ stripping
in the main build scripts or hooks? Downstream this might create
trouble tough, as the build systems are different..

Upstream has options=(lto) support, but it doesn’t seen helping here as packages
need local flags everywhere..

Andreas Baumann commented on 21.07.2022 11:21

An alternative is to use 486 chroot for building software which needs to much memory
on the 486 VMs (having other nasty effects due to failed hardware property probing -
the very reason why we use VMs in the first place).

Andreas Baumann commented on 21.07.2022 11:28

On pentium4 I get with the same module now on a machine with 64GB RAM:

virtual memory exhausted: Operation not permitted

Andreas Baumann commented on 21.07.2022 11:33


Andreas Baumann commented on 20.08.2022 07:09

LTO also just uses parallel processes ad abundance, which we have to tame again
in order not to kill build machines..


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