Messages in this thread | | | Subject | Re: Random panic in load_balance() with 3.16-rc | From | (Frank Ch. Eigler) | Date | Mon, 28 Jul 2014 08:26:59 -0400 |
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torvalds wrote:
> [...] > Actually, I prefer my patch that did it with cc-option checking, and > does it unconditionally. > > Because if we do it even for non-debug builds - where it ostensibly > shouldn't matter - we then have that GCC_COMPARE_DEBUG thing working > regardless of configuration.
Please note that the data produced by "-g -fvar-tracking" is consumed by tools like systemtap, perf, crash, and makes a significant difference to the observability of debug AND non-debug kernels. (The presence of compiled-in DEBUG_* self-checking code is orthogonal to kernel observability via debuginfo.) Please consider only disabling var-tracking optionally/temporarily to work around this already-fixed compiler bug, but not losing high-quality dwarf data permanently.
- FChE
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