Hi all, I'm looking into a mksnapshot bus error which i have logged 
here: https://bugs.chromium.org/p/v8/issues/detail?id=14007

I've been able to identify the commit that introduced the bug: 
https://chromium.googlesource.com/v8/v8.git/+/91637c25fcdb199526a7060ceca858aeef16bd3d

But i could really use some advice debugging the issue. What I'd really 
like is to get a callstack from when the error is throw, but I haven't been 
successful thus far. I'm building v8 in debug mode and have tried the 
`--logAll` and `--trace` flags. The logfile doesn't seem to contain 
anything readable the trace also seems to stop somewhere random, inside the 
parser map? mksnapshot really has a ton of flags and it's hard to know 
exactly which ones i should use.

Is it possible to run mksnapshot through a debugger? I haven't been able to 
find much with my google searches, but i have to assume you can.

I'm new to v8 develop and would appreciate any help.

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