Date: Tue, 19 Mar 2002 10:39:21 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Andrew MacIntyre <andymac@bullseye.apana.org.au> Cc: David Malone <dwmalone@maths.tcd.ie>, Harry Newton <harry_newton@telinco.co.uk>, <freebsd-stable@FreeBSD.ORG> Subject: Re: reproducable panic with python Message-ID: <200203191839.g2JIdLv76249@apollo.backplane.com> References: <Pine.OS2.4.32.0203192045110.40-100000@tenring>
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Yes, this has been fixed. Python was using MAP_ANON|MAP_NOSYNC
mmap()'s and this resulted in the possibility of msync() encountering
an optimized vm_map_entry that did not yet have a VM object associated
with it, causing a panic.
Both -stable and -current have been fixed to handle the case.
-current was fixed on March 7th, and -stable on March 8th.
-Matt
:On Wed, 6 Mar 2002, David Malone wrote:
:
:> On Tue, Mar 05, 2002 at 11:11:48PM +0000, Harry Newton wrote:
:> > #!/usr/local/bin/python2.2
:> >
:> > import mmap
:> > m = mmap.mmap(-1,256,mmap.MAP_ANON)
:> > m = 1
:>
:> I've made a little progress on this. It doesn't work with python2.0.
:> It does work on both -stable and -current. The trace back on -current
:> looks is included below. It's doing a msync when it doesdies.
:
:{...}
:
:I've not seen any followup concerning resolution of this - have any
:conclusions been reached?
:
:--
:Andrew I MacIntyre "These thoughts are mine alone..."
:E-mail: andymac@bullseye.apana.org.au | Snail: PO Box 370
: andymac@pcug.org.au | Belconnen ACT 2616
:Web: http://www.andymac.org/ | Australia
:
:
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:
Matthew Dillon
<dillon@backplane.com>
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