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35a32c5
(Get the code!)
FYI, update:
- I have upgraded my Mac Mini to 16.04 (plus qemu 2.7.0 from source)
- I have completely replaced the RAM in my Mac Mini
- I have replicated on someone else's Mac Mini with 16.04
I can still replicate the new segfault/libc problems, so I'm sure that it's not a hardware issue.
The new crashes are harder to obtain, but I can get them if I run the build process with 1 vCPU, or if I configure 8 vCPUs but run 4 instances of the build process concurrently.
Anyway, that part of this ticket can be ignored as I'll be raising this upstream with the qemu project.
The original part of this ticket is that qemu crashes in tcp_output in its SLIP networking code. I still think the pragmatic solution would be to have qemu 2.7.0 in xenial-backports.
I personally don't plan on spending time working out where exactly the fix is and backporting it to qemu 2.5.0; and people using the SLIP networking code in production are probably quite rare (although packer.io's qemu builder is an example of this)