On Oct 4, 2016, at 12:18 AM, Greg KH <greg@xxxxxxxxx> wrote: > > On Mon, Oct 03, 2016 at 07:27:35PM +0000, Steven Schlansker wrote: >> Hi linux-stable, >> >> This is a request to backport >> >> 751eb6b6 ipv6: addrconf: fix dev refcont leak when DAD failed >> https://github.com/torvalds/linux/commit/751eb6b6042a596b0080967c1a529a9fe98dac1d >> >> to linux-stable 4.4.y branch. >> It has already been applied to stable master, and 4.7.y, but not longterm 4.4.y >> >> We often (1+/week) run into hosts hanging with errors like >> >> [1637669.684652] unregister_netdevice: waiting for veth26dc718 to become free. Usage count = 1 >> [1637679.864366] unregister_netdevice: waiting for veth26dc718 to become free. Usage count = 1 >> >> and have been told that this patch likely fixes the problem. > > It's already in the 4.4.22 stable release, are you not already using > that release? > > confused, No, I am the one that is confused, I somehow managed to miss it in the history -- I think I misspelled 'refcont' as 'refcount' when searching, or something like that. I see it now. Thanks for pointing this out, sorry for the noise!
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