Re: rt-preempt and x86_64?

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Alistair John Strachan wrote:
Hi Ingo,

(I searched the list for rt realtime x86_64 x86-64 before posting this, so I hope it's not a duplicate).

I've noticed -31 compiles without notable error or warning on x86-64, so I thought maybe it was a valid time to file a bug report about it not working.

The machine currently runs 2.6.12 but when booting with PREEMPT_RT mode on the same machine I get:

init[1]: segfault at ffffffff8010e9c4 rip ffffffff8010e9c4 rsp 00007fffffe28018
[...]

Do you have latency tracing enabled in the kernel config? Try disabling it. It's a known problem that it doesn't work on x86_64.

Michal
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