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[VM] Override address size limit to unlimited #827

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[VM] Override address size limit to unlimited #827

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Commits on Jun 3, 2022

  1. [VM] Override address size limit to unlimited 

    The "build" script limits PRLIMIT_AS to (2/3) * (mem_size + swap_size),
which breaks asan, which tries to opportunistically allocate multiple TB
of memory, but crucially never even closely uses this.

This commit eliminates the memory limit right before spawning VMs (and
containers) if necessary, so that stage2 can run unrestricted
(notwithstanding the memory limit imposed by hypervisors) and use memory
overcommitment within the build process.

See the linked bug for a discussion of this.

Fixes: openSUSE#826
    @Ionic
    Ionic committed Jun 3, 2022
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