While working on some functions based on LowRankApprox.jl I got an EXCEPTION_ACCESS_VIOLATION error in a MKL dll.

Sadly, I was not able to make a MWE from my original code that shows the issue.

My script uses a pqr decomposition from LowRankApprox. When I switch back to a standard qr the script runs fine.
Surprisingly, the computation seems to fail once I actually try to access the factors of the QR decomposition with e.g. F.Q if the computation was done with F = pqrfact(A)

Frankly, I can’t figure how to provide more information about this issue. I’m open to suggestions :slight_smile:

Additional information.

This problem does not show up with julia 1.6.0 with OpenBLAS, so this seems definitely related to MKL