Messages in this thread | | | From | Roland McGrath <> | Subject | Re: s390 && user_enable_single_step() (Was: odd utrace testing results on s390x) | Date | Wed, 6 Jan 2010 13:13:29 -0800 (PST) |
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> However, with or without CONFIG_UTRACE, 6580807da14c423f0d0a708108e6df6ebc8bc83d > is needed on s390 too, otherwise the child gets unnecessary traps.
This confuses me. user_disable_single_step on non-current doesn't do anything not already done by the memset in copy_thread. Ooh, except perhaps it does not clear PSW_MASK_PER. Maybe that matters. That's the only thing I can think of. Maybe Martin can make sense of it.
Thanks, Roland
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