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[Bug runtime/20148] during module init, systemtap is calling cpufreq_register_notifier(), a function that can sleep, in atomic context
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Fri, 03 Jun 2016 16:16:03 +0000
- Subject: [Bug runtime/20148] during module init, systemtap is calling cpufreq_register_notifier(), a function that can sleep, in atomic context
- Auto-submitted: auto-generated
- References: <bug-20148-6586 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=20148
--- Comment #2 from David Smith <dsmith at redhat dot com> ---
In theory, any stap script that calls any of the gettimeofday_*() functions
should cause this bug, but the following script doesn't show this bug:
# stap -ve 'probe begin { printf("%d\n", gettimeofday_s()) }'
Calling any of the gettimeofday_*() functions causes _stp_init_time() to be
called.
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