freebsd stable - Feb 2016 - 10-STABLE hangups frequently

Some more information about your enviroment would be helpful:
1. What revision of stable/10 are you running?
2. What workloads are you running?
3. What's the output of procstat -k -k when this happens (assuming its 
possible to run)?
4. What's the output of sysctl -a |grep vnode, usually and when this 
happens?

     Regards
     Steve

On 02/02/2016 07:55, Hajimu UMEMOTO wrote:
> Hi,
>
> I'm disturbed by a frequent hangup of my 10-STABLE boxes since this
> year.  It seems occur during running the periodic daily scripts.
> I've narrowed which commit causes this problem.  It seems r292895
> causes it.  I see many `Resource temporarily unavailable' message just
> before hangup occurs.
> Any idea?
>
> Sincerely,
>
> --
> Hajimu UMEMOTO
> ume at mahoroba.org  ume at FreeBSD.org
> http://www.mahoroba.org/~ume/
> _______________________________________________
> freebsd-stable at freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe at
freebsd.org"

Hi,
>>>>> On Tue, 2 Feb 2016 08:54:17 +0000
>>>>> Steven Hartland <killing at multiplay.co.uk> said:
killing> Some more information about your enviroment would be helpful:
killing> 1. What revision of stable/10 are you running?

It occurs on r292895 and later.

killing> 2. What workloads are you running?

Apache, Cyrus IMAPd, BIND and mpd5.  However, traffic is almost
nothing without running the periodic daily scripts.

killing> 3. What's the output of procstat -k -k when this happens
(assuming its
killing> possible to run)?

I could not get it.

killing> 4. What's the output of sysctl -a |grep vnode, usually and when
this
killing> happens?

The following is usual case:

kern.maxvnodes: 400000
kern.minvnodes: 100000
Syncing disks, vnodes remaining...0 0 0 0 0 done
Syncing disks, vnodes remaining...0 0 0 0 0 0 done
vm.stats.vm.v_vnodepgsout: 129
vm.stats.vm.v_vnodepgsin: 836656
vm.stats.vm.v_vnodeout: 101
vm.stats.vm.v_vnodein: 90562
vfs.freevnodes: 39680
vfs.wantfreevnodes: 100000
vfs.vnodes_created: 141735
vfs.numvnodes: 59118
debug.sizeof.vnode: 472

Sincerely,

--
Hajimu UMEMOTO
ume at mahoroba.org  ume at FreeBSD.org
http://www.mahoroba.org/~ume/

Just want to chip in that I also experience the same issue. This is my 
home firewall running squid/unbound/isc-bind/isc-dhcpd/pf/zfs.
Have a couple of tmpfs and NFSv4 mounts.
Was about to order new hardware since I thought it might be failing, 
lol. Haven't had time to hook up a monitor/console, but generate some 
load on the machine after a day or so of uptime and it feels as IO has 
just stuck and a reboot is necessery. Actually managed to update it 
yesterday, after a pre-reboot procedure.

I have noticed vfs.numvnodes constanly rising to maxvnodes, so I bump 
that a bit.

# uname -a
FreeBSD brand.henriklidstrom.se 10.3-PRERELEASE FreeBSD 10.3-PRERELEASE 
#15 r295126M: Mon Feb  1 22:16:50 CET 2016 
root at brand.henriklidstrom.se:/usr/obj/usr/src/sys/BRAND  amd64
# sysctl -a | grep vnodes
kern.maxvnodes: 300000
kern.minvnodes: 75000
vfs.freevnodes: 226235
vfs.wantfreevnodes: 75000
vfs.vnodes_created: 1129810
vfs.numvnodes: 250043
# fstat -m | wc -l
     2740
#

/Henrik


On 02/02/16 09:54, Steven Hartland wrote:
> Some more information about your enviroment would be helpful:
> 1. What revision of stable/10 are you running?
> 2. What workloads are you running?
> 3. What's the output of procstat -k -k when this happens (assuming its 
> possible to run)?
> 4. What's the output of sysctl -a |grep vnode, usually and when this 
> happens?
>
>     Regards
>     Steve
>
> On 02/02/2016 07:55, Hajimu UMEMOTO wrote:
>> Hi,
>>
>> I'm disturbed by a frequent hangup of my 10-STABLE boxes since this
>> year.  It seems occur during running the periodic daily scripts.
>> I've narrowed which commit causes this problem.  It seems r292895
>> causes it.  I see many `Resource temporarily unavailable' message
just
>> before hangup occurs.
>> Any idea?
>>
>> Sincerely,
>>
>> -- 
>> Hajimu UMEMOTO
>> ume at mahoroba.org  ume at FreeBSD.org
>> http://www.mahoroba.org/~ume/
>> _______________________________________________
>> freebsd-stable at freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
>> To unsubscribe, send any mail to 
>> "freebsd-stable-unsubscribe at freebsd.org"
>
> _______________________________________________
> freebsd-stable at freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe at
freebsd.org"