Debian Bug report logs - #670680
armhf sigsegv's on task switch

Package: src:python-greenlet; Maintainer for src:python-greenlet is Laszlo Boszormenyi (GCS) <gcs@debian.org>;

Reported by: Al Stone <ahs3@debian.org>

Date: Fri, 27 Apr 2012 22:57:01 UTC

Severity: important

Tags: patch, upstream

Fixed in version python-greenlet/0.4.0-1

Done: "Laszlo Boszormenyi (GCS)" <gcs@debian.hu>

Bug is archived. No further changes may be made.

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Report forwarded to debian-bugs-dist@lists.debian.org, Ãrjan Persson <orange@fobie.net>:
Bug#670680; Package src:python-greenlet. (Fri, 27 Apr 2012 22:57:04 GMT) (full text, mbox, link).

Acknowledgement sent to Al Stone <ahs3@debian.org>:
New Bug report received and forwarded. Copy sent to Ãrjan Persson <orange@fobie.net>. (Fri, 27 Apr 2012 22:57:04 GMT) (full text, mbox, link).

Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

[Message part 1 (text/plain, inline)]

Source: python-greenlet
Severity: important
Tags: upstream patch

The 0.3.1 version of python-greenlet does not seem to behave on
armhf.  The following code will show the problem:

from greenlet import greenlet

def test1():
	print 12
	gr2.switch()
	print 34

def test2():
	print 56
	gr1.switch()
	print 78

print 'Correct answer is:'
print '12'
print '56'
print '34'

print 'Actual answer is:'
gr1 = greenlet(test1)
gr2 = greenlet(test2)
gr1.switch()


However, the 0.3.3 version will not compile, either.  So, the attached
patch (sorry, not my best work ever ... I'm in a hurry) does two things:
(1) add -fomit-frame-pointer to the compile so that r7 can actually be
saved, and (2) changes platform/switch_arm32_gcc.h to incorporate the
latest upstream changes (which were insufficient) and be more conversative
in what gets saved on task switch.  With the changes, 0.3.3 builds on
armhf and passes the test suite with no errors.

[armv7-stack-save (text/x-diff, attachment)]

Information forwarded to debian-bugs-dist@lists.debian.org, Örjan Persson <orange@fobie.net>:
Bug#670680; Package src:python-greenlet. (Sat, 01 Sep 2012 12:48:02 GMT) (full text, mbox, link).

Acknowledgement sent to "Laszlo Boszormenyi (GCS)" <gcs@debian.hu>:
Extra info received and forwarded to list. Copy sent to Örjan Persson <orange@fobie.net>. (Sat, 01 Sep 2012 12:48:03 GMT) (full text, mbox, link).

Message #10 received at 670680@bugs.debian.org (full text, mbox, reply):

Hi Al,

I plan to take over python-greenlet and upload a new upstream release.
Can you please check if 0.4.0-1 [1] fixes this bug for you?

Thanks,
Laszlo/GCS
[1] dget -xu http://www.barcikacomp.hu/gcs/python-greenlet_0.4.0-1.dsc

Reply sent to "Laszlo Boszormenyi (GCS)" <gcs@debian.hu>:
You have taken responsibility. (Fri, 07 Sep 2012 21:18:08 GMT) (full text, mbox, link).

Notification sent to Al Stone <ahs3@debian.org>:
Bug acknowledged by developer. (Fri, 07 Sep 2012 21:18:08 GMT) (full text, mbox, link).

Message #15 received at 670680-done@bugs.debian.org (full text, mbox, reply):

Package: python-greenlet
Version: 0.4.0-1
thanks

Reporter confirms that new upstream release fixed this issue.

Bug archived. Request was from Debbugs Internal Request <owner@bugs.debian.org> to internal_control@bugs.debian.org. (Mon, 11 Feb 2013 07:26:33 GMT) (full text, mbox, link).

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Debian Bug report logs - #670680 armhf sigsegv's on task switch

Debian Bug report logs - #670680
armhf sigsegv's on task switch