Unwind errors

When using Linaro MAP, you might see these errors reported in the output in the form:

Forge sampler: 3 libunwind: Unspecified (general) error (4/172 samples)
Forge sampler: 3 Maximum backtrace size in sampler exceeded, stack too deep. (1/172 samples)

These indicate that Linaro MAP was only able to obtain a partial stack trace for the sample.

Solution

If the proportion of samples that generate such errors is low, they can safely be ignored.

If a large proportion of samples exhibit these errors, consult the advice on partial traces in Intel compilers or NVIDIA HPC SDK compilers if you are using these compilers.

If this does not resolve your issue, contact Forge Support.