perf: perf_fuzzer triggers instant reboot

From: Vince Weaver
Date: Mon Sep 08 2014 - 13:41:16 EST


Hello

so I finally had time to run my perf_fuzzer again and it has rapidly
turned up an alarming crash that instant-reboots my core2 test machine.

This is on 3.17-rc4. It is reproducible.

The first time all that appeared on the serial console was:

[ 2616.535995] Kernel panic - not syncing: Lost physical address for unconsumed uncorrectable error

The second time this happened instead:

[ 756.009271] traps: perf_fuzzer[4236] trap invalid opcode ip:4044c0 sp:7fffb0ed6f90 error:0
[ 756.017590] BUG: unable to handle kernel paging request

I'll work on trying to narrow this down a bit.

Vince
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