I found that when I have
[ "-smp", "8,sockets=1,cores=4,threads=2" ],
in packer_files/vtp.json, the build completes successfully on my 14.04
Mac Mini with qemu 2.7.0. It worked several times flawlessly.
But if I remove that line (so that only one CPU is emulated by KVM) then
I get errors such as
Oct 5 17:13:03 brian kernel: [99660.108698] qemu-system-x86[26914]:
segfault at 5596d914cfb0 ip 00007f1d1244fc5e sp 00007f1985bdc770 error 4
in libc-2.19.so[7f1d123d0000+1ba000]
During the build there is an increasing number of lxd containers
running; so perhaps having so much load on a single emulated CPU is
triggering this condition.
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https://bugs.launchpad.net/bugs/1630226
Title:
segfault in qemu-system-x86_64
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