Re: s390 && user_enable_single_step() (Was: odd utrace testingresults on s390x)

[Roland McGrath]

> The PER control registers only get reloaded on task switch. Can you test
> if this patch fixes your problem?

Long ago when I first worked with David Wilder on s390 arch code,
I remember we made this change.  It seems to have been forgotten
in the later rounds of reworking and merging.


Thanks,
Roland
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