Date: Wed, 3 Oct 2012 20:39:31 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Norbert Aschendorff <norbert.aschendorff@yahoo.de> Cc: freebsd-stable@freebsd.org Subject: Re: panic "Sleeping thread owns a non-sleepable lock" via cv_timedwait_signal, was "rsync over NFS" Message-ID: <20121003173931.GZ35915@deviant.kiev.zoral.com.ua> In-Reply-To: <506C7557.1000503@yahoo.de> References: <506BFECE.3020006@yahoo.de> <37099006.1631279.1349270651574.JavaMail.root@erie.cs.uoguelph.ca> <20121003155452.GY35915@deviant.kiev.zoral.com.ua> <506C7557.1000503@yahoo.de>
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On Wed, Oct 03, 2012 at 07:26:47PM +0200, Norbert Aschendorff wrote:
> On 10/03/2012 05:54 PM, Konstantin Belousov wrote:
> > So do you use nullfs exported mounts ? And stable ?
> > Can you try to remove nullfs from the set up ?
>=20
> Yes, I am using nullfs for the exports (mounting the exported
> directories to subdirectories of /srv). In the FreeBSD man pages and the
> documentation, the V4 export line in /etc/exports is often set to /, but
> as I come from Linux where /etc/exports looks completely different, I
> just followed my habits.
>=20
> As I wrote this, I executed the critical operation. It's finished and
> the FreeBSD server still runs *yay* :) So it's quite likely that the
> problem stems from the nullfs mount.
>=20
> I just remember an issue I already wanted to tell: Before the server
> crashed, the nfsd process ('nfsd: server') used 100% CPU (one core), but
> without progress on client side. Usually, the nfsd uses only up to 10%
> cpu time when rsyncing (values taken from htop - 100% =3D one used CPU).
>=20
> ...aaand I just run it once more, and it worked again :)
Can you try HEAD kernel ?
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