Re: zfs recv hangs in kmem arena

2014-10-26 Thread James R. Van Artsdalen
I was able to complete a ZFS replication by manually intervening each time "zfs recv" blocked on "kmem arena": running the program at the end was sufficient to unblock zfs each of the 17 times it stalled. The program is intended to consume about 24GB RAM out of 32GB physical RAM, thereby pressurin

Re: zfs recv hangs in kmem arena

2014-10-21 Thread James R. Van Artsdalen
On 10/21/2014 5:03 PM, Alan Cox wrote: > How up to date is your source tree? r2720221 is relevant. Without that > change, there are circumstances in which the code that is supposed to > free space from the kmem arena doesn't get called. I've tried HEAD/CURRENT at r272749 On 10-STABLE through r273

Re: zfs recv hangs in kmem arena

2014-10-21 Thread Alan Cox
On Tue, Oct 21, 2014 at 5:03 PM, Alan Cox wrote: > On Sun, Oct 19, 2014 at 10:30 AM, James R. Van Artsdalen < > james-freebsd-...@jrv.org> wrote: > >> Removing kern.maxfiles from loader.conf still hangs in "kmem arena". >> >> I tried using a memstick image of -CURRENT made from the release/ >> pr

Re: zfs recv hangs in kmem arena

2014-10-21 Thread Alan Cox
On Sun, Oct 19, 2014 at 10:30 AM, James R. Van Artsdalen < james-freebsd-...@jrv.org> wrote: > Removing kern.maxfiles from loader.conf still hangs in "kmem arena". > > I tried using a memstick image of -CURRENT made from the release/ > process and this also hangs in "kmem arena" > > An uninvolved

Re: zfs recv hangs in kmem arena

2014-10-19 Thread James R. Van Artsdalen
Removing kern.maxfiles from loader.conf still hangs in "kmem arena". I tried using a memstick image of -CURRENT made from the release/ process and this also hangs in "kmem arena" An uninvolved server of mine hung Friday night in state"kmem arena" during periodic's "zpool history". After a reboot

Re: zfs recv hangs in kmem arena

2014-10-16 Thread Xin Li
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 10/16/14 8:43 PM, James R. Van Artsdalen wrote: > On 10/16/2014 11:12 AM, Xin Li wrote: >>> On 9/26/2014 1:42 AM, James R. Van Artsdalen wrote: FreeBSD BLACKIE.housenet.jrv 10.1-BETA2 FreeBSD 10.1-BETA2 #2 r272070M: Wed Sep 24 17:36:56 C

Re: zfs recv hangs in kmem arena

2014-10-16 Thread Xin Li
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 10/16/14 4:25 AM, James R. Van Artsdalen wrote: > The zfs recv / kmem arena hang happens with -CURRENT as well as > 10-STABLE, on two different systems, with 16GB or 32GB of RAM, > from memstick or normal multi-user environments, > > Hangs usual

Re: zfs recv hangs in kmem arena

2014-10-16 Thread James R. Van Artsdalen
The zfs recv / kmem arena hang happens with -CURRENT as well as 10-STABLE, on two different systems, with 16GB or 32GB of RAM, from memstick or normal multi-user environments, Hangs usually seem to hapeen 1TB to 3TB in, but last night one run hung after only 4.35MB. On 9/26/2014 1:42 AM, James R.