I noticed the Linux-arm64 PMI coreclr_tests collection has 8 cases of:

ERROR: Method 301 is of low integrity.

during the mcs -merge step. These should never occur: they indicate file corruption.

At the end, I see terminate called after throwing an instance of 'PAL_SEHException' which I believe comes from mcs, meaning we're probably not getting the full set of collected MCs into the base.mch file.

I didn't check to see if other collections or platforms have similar errors.

category:eng-sys
theme:super-pmi
skill-level:intermediate
cost:medium
impact:medium