Bug #24948: SPDK compiles with -march=native - Ceph - Ceph

Bug #24948

SPDK compiles with -march=native

Added by Nathan Cutler over 1 year ago. Updated over 1 year ago.

Status:

Resolved

Priority:

Normal

Assignee:

Nathan Cutler

Category:

Target version:

% Done:

Source:

Tags:

Backport:

mimic

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

Crash signature:

Description

-march=native causes gcc to use opcodes according to whichever CPU happens to be installed in the build host, which can be different for every build. This makes it impossible to achieve a reproducible build.

Also, if the build host has a very new CPU, running the resulting binaries on older CPUs (of the same family, i.e. x86_64) could result in segmentation fault.

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