Re: [patch] perf_event_open.2: 3.19 PERF_SAMPLE_REGS_INTR support

Andi Kleen
2015-03-02T22:58:13Z

> do not enable REGS_USER and REG_INTR at the same time
> as REGS_USER will have REG_INTR values and
> cannot be used for user stack unwinding

If that's true it would be a bug. But I doubt it.

The PEBS handler sets up its own pt_regs, so they should
be independent.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.