LOR web page

[Brian Fundakowski Feldman]

John Baldwin <jhb at FreeBSD.org> wrote:
> On Friday 30 April 2004 01:42 pm, Bjoern A. Zeeb wrote:
> > Hi,
> >
> > being one of the first persons who had asked for such a page some time
> > back last year I - do not know why but sporadically - put up a web page
> > with the last 6 LORs reported I could find (inluding the FAQ one ;-)
> >
> > The page is at
> >
> > 	http://sources.zabbadoz.net/freebsd/lor.html
> >
> 
> Just a couple of notes: the 002 (the sleeping with sigacts on stopevent) is 
> fixed.  Also, the 004 one is known and is a problem but fixing it is somewhat 
> complicated.
> 
> > and will be updated once in a while (see table footer for more info on
> > this). You may link to it in mailing list posting etc but please do NOT
> > put a link to it in the source code.
> >
> > If anyone feels that it's his job or want to integrate it
> > into the official freebsd docs please take the data from the page,
> > drop me a note and I will link to your site.
> >
> >
> > PS: can someone please close PR kern/55175 - patch has been committed
> > 	by phk in
> > http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/fs/specfs/spec_vnops.c.diff?r
> >1=1.220&r2=1.221 I think.
> 
> The PR is about more than just the lock order, it is also arguably a bug that 
> the filedesc lock is held while we call the poll methods of all the various 
> file structures.

This kind of crap is a very pervasive problem -- even more so for kqueue 
than for other polling interfaces.

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green at FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\