Date: Sat, 20 Nov 2010 20:04:35 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Mikolaj Golub <to.my.trociny@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: flowtable_cleaner/flowtable_flush livelock Message-ID: <20101120200208.M24596@maildrop.int.zabbadoz.net> In-Reply-To: <868w0nolqo.fsf@kopusha.home.net> References: <86pqu0nexd.fsf@kopusha.home.net> <20101120165604.T24596@maildrop.int.zabbadoz.net> <868w0nolqo.fsf@kopusha.home.net>
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On Sat, 20 Nov 2010, Mikolaj Golub wrote: Hey, > On Sat, 20 Nov 2010 17:03:13 +0000 (UTC) Bjoern A. Zeeb wrote: > > BAZ> I think net@ would have been a better initial place but since this > BAZ> seems to be a problem when interacting with VIMAGE > BAZ> freebsd-virtualization might be better. > > BAZ> What you could try is: > BAZ> http://people.freebsd.org/~bz/20100216-10-ft-cv.diff > > Ah, I have recalled I had already saw this patch but did not understand what > the problem was that it fixed, thus did not associated it with my case > (actually, I thought you had committed all these patches to the tree long time > ago and I was running the kernel with them already :-). > > BTW, the patch needs updating: in the current flow_full() wakes up flowcleaner > too, and flowcleaner sleeps for flowclean_freq instead of 10*hz (see the > attached patch). For sure it does; as you can see form the date in the file name, that patch was from the beginning of the year. > With the patch I can't reproduce the lock. Only the crash I mentioned in my > first letter is observed: Hmm, I guess I should get the updated version comitted then. How do you reproduce the crash? Is it just another ifioctl race as from kern/146250? /bz -- Bjoern A. Zeeb Welcome a new stage of life. <ks> Going to jail sucks -- <bz> All my daemons like it! http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/jails.html
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