Andrew Hart

> Hi @aehart @tomalin Is this consider as a bug-fix? So we can mark it in the PR. Thx. Yes, this is a bug fix.

I was able to fix the first exception in #44427. If there is a recipe for the exception in PU relvals, I can try to debug that one as well.

I was able to reproduce the exception seen in PU relvals by copying the PSet.pkl from one of the job logs. I traced this to a numerical stability issue, which...

I was able to reproduce the crash locally in 14_1_0_pre3, and with debugging symbols, the backtrace points to this line: https://github.com/cms-sw/cmssw/blob/43944b8074465f15907d5f89d6d24e2cb1f6bc86/L1Trigger/TrackFindingTracklet/src/PurgeDuplicate.cc#L197 I can't see how this line could be the...

> Switching to a dynamic container to see if that solves the problem. This seems to be a good suggestion. I switched `dupMap` (and also `noMerge`) from C-style arrays to...

> Do you somehow understand why it does not happen in 14_0? Do we just about at the limit in 14_1 due to some modules? That's my guess, although it...

> I've only checked the L1Trigger/TrackFinding* packages by recompiling them with the `-Werror=vla` flag, but there seem to be no more instances of this particular problem there. Just for fun,...

I have opened #46481 to address this error. As I mention there, this error and its fix have no effect on the end results because `newalpha` is never used when...