FreeBSD new pthread problem with system scope

[hyeshik]

BPO	902444
Nosy	@hyeshik
Files	freebsdksethread.diff: a proposed patch

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/hyeshik'
closed_at = <Date 2004-03-04.06:43:43.000>
created_at = <Date 2004-02-23.04:39:43.000>
labels = []
title = 'FreeBSD new pthread problem with system scope'
updated_at = <Date 2004-03-04.06:43:43.000>
user = 'https://github.com/hyeshik'

bugs.python.org fields:

activity = <Date 2004-03-04.06:43:43.000>
actor = 'hyeshik.chang'
assignee = 'hyeshik.chang'
closed = True
closed_date = None
closer = None
components = ['None']
creation = <Date 2004-02-23.04:39:43.000>
creator = 'hyeshik.chang'
dependencies = []
files = ['5828']
hgrepos = []
issue_num = 902444
keywords = ['patch']
message_count = 2.0
messages = ['45414', '45415']
nosy_count = 1.0
nosy_names = ['hyeshik.chang']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue902444'
versions = []

[hyeshik]

FreeBSD libpthread based on their kernel thread
infrastructure called "KSE" will be introduced in
FreeBSD 5.3 by default. Currently, our
test_threaded_import is failing due to shortage of KSE
system scope scheduling resource.
According to KSE gurus, they are doing enough
round-robin scheduling for process scope threads and it
is much cheaper than system scope. (see
http://lists.freebsd.org/pipermail/freebsd-ports/2004-February/008852.html)
The attached patch disables setting threads into system
scope scheduling.

[hyeshik]

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Committed as Python/thread_pthread.h 2.52