10.0-RC1: bad mbuf leak?

Gleb Smirnoff glebius at FreeBSD.org
Sat Jan 4 19:55:15 UTC 2014


  Thanks, Michael!

On Sat, Jan 04, 2014 at 07:47:27PM +0100, Michael Tuexen wrote:
M> > On Tue, Dec 24, 2013 at 10:54:33AM -0600, Mark Felder wrote:
M> > M> > finally found some free time today to try to look into this. I was digging into the SVN changelogs of sys/dev/e1000 and couldn't see any obvious changes that I should revert. Instead I went a different route and jumped to HEAD/CURRENT. I'm not seeing the mbufs leaking yet. I'll need another 24 hours to confirm. Hopefully this is a worthwhile clue. I'm a bit surprised nobody else has reported this type of behavior... maybe 10 isn't getting the amount of testing we expect? ...or maybe it's just my lonely, haunted hardware :(
M> > M> 
M> > M> Ok, I feel safe confirming that 10.0-RCs are not stable on my hardware. The mbuf problem went away completely when I jumped to head/current.
M> > M> 
M> > M> Can someone please suggest what patch I can attempt to back out to fix this? I'd like to try to assist in fixing this before 10.0-RELEASE happens or we're going to have some very angry users.
M> > 
M> > Is it possible for you to bisect head from the stable/10 branchpoint up
M> > to the current date and narrow down the revisions that introduced (and later
M> > fixed?) the leak?
M> I did a bisect and
M> http://svnweb.freebsd.org/changeset/base/258690
M> resolved the issue on my system:

I have just merged this change to head as r260280.

Mark, can you pleast confirm that now stable/10 no longer leaks mbufs
at your setup?

-- 
Totus tuus, Glebius.


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