I get those crashes around once a day. This makes me think it could be
because of a cron job which runs at that frequency. I'll try to find
that and see if I can explicitly reproduce.
In the meantime, the very instruction that generates the SIGBUS error
is:
vmovdqu64 (%rsi), %ymm16
yet, in today's crash, the rsi register is set to:
0x72c37a09b000
So I don't understand the error, unless the memory is not accessible
(some buffer overflow type of error rather than alignment issue).
Although I thought those would use SIGSEGV instead.
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https://bugs.launchpad.net/bugs/2107254
Title:
Apache2 crashes with SIGBUS in mod_ssl
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