Lately, I've seen quite a few spurious build failures. Random SIGBUS is
particularly common, and gcc reports that it cannot reproduce the SIGBUS
in a second compilation, which usually points to a kernel/hardware issue.
The latest problem was a hang during a build (on
buildvm-armv7-07.arm.fedoraproject.org), with this kernel:
Linux buildvm-armv7-07.arm.fedoraproject.org
4.16.6-302.fc28.armv7hl+lpae #1 SMP Tue May 1 23:15:35 UTC 2018 armv7l
armv7l armv7l GNU/Linux
This affects multiple builders, so I suspect a kernel issue, not dying
hardware because AFAIK, the machines are independent.
The issue also affects copying out the log files for Koji, so they
probably do not show the actual place of the hang.
Thanks,
Florian
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