https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125861
--- Comment #4 from Andrew Macleod <amacleod at redhat dot com> --- I think this is actually a dup of 125854.. My patch for that PR appears to fix this one too. And notice the trap is basically the same.. verifying we arent reentering the cache code, just a different update list.
