Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Michael B. Eichorn

> 
> ...more RAM? Always more RAM?
> 
> Reality check please, this is an i386 Machine with 2 Gbytes.
> It has two of 3 sockets polluted with RAM Modules (1G), there is not 
> that
> much Space to give it more RAM.
> 
> i386 is a supported architecture as far as I know, ok it where nice to
> have in i386 with 8 Gigs of RAM but there are not much motherboards out
> here that would support this..
> 
> This remebers me to microsofts attemts to write Software, always more 
> RAM
> and more CPU to fasten up endless loops..
> 
> Regards,
> 
> Holm

Of course i386 is supported, but in the near future arm will be tier 1 as
well. Not every arch can do everything equally well.

ZFS was designed to allow huge storage sizes (files are limited to 16
EiB). At some point the storage is just too big for fsck to make sense so
you use copy-on-write, and copy-on-write kills performance unless you do
a significant amount of caching. Thus the tradeoff is for big storage you
need big memory.

For an execellent rundown why ZFS does this and some comparisons to UFS I
highly recommend Dr. McKusick's "An Introduction to the Implementation of
ZFS" from BSDCan 2015:
Part 1, 18m https://youtu.be/UP_JfUUmDZo
Part 2, 54m https://youtu.be/l-RCLgLxuSc

smime.p7s
Description: S/MIME cryptographic signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Chris H
On Fri, 24 Jul 2015 09:50:52 +0100 Matthew Seaman  wrote

> On 07/24/15 07:58, Holm Tiffe wrote:
> > ..interrestingly people here seem to focus my problem to ZFS.. but my
> > problem was to build an raid over 4 disks on my old i386 machine and that
> > failed with 2 different approaches.
> > 
> > I'm accepting that ZFS is a too big thing for the i386 architecture
> > and I possibly should leave it alone on that machine.
> > 
> > But my 2nd try with gvinum failed also ...why?
> 
> I've had success using a combination of gstripe and gmirror to create a
> RAID10 over 4 drives:
> 
> % gstripe status
>   Name  Status  Components
> stripe/st0  UP  mirror/gm2
> mirror/gm1
> % gmirror status
>   NameStatus  Components
> mirror/gm2  COMPLETE  da0 (ACTIVE)
>   da1 (ACTIVE)
> mirror/gm1  COMPLETE  da2 (ACTIVE)
>   da3 (ACTIVE)
> 
> This is a separate data area though -- system boots from some different
> drives.  I can't remember if it is possible to boot from a gstripe.
While it hasn't been since around the beginning of 8. I can confirm
it's possible to boot from a gstripe(8).

--Chris
> 
> Cheers,
> 
> Matthew


___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Brandon Allbery
On Fri, Jul 24, 2015 at 3:02 AM, Holm Tiffe  wrote:

> ...more RAM? Always more RAM?


For ZFS, yes. Stick to UFS otherwise.

-- 
brandon s allbery kf8nh   sine nomine associates
allber...@gmail.com  ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonadhttp://sinenomine.net
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Michelle Sullivan
Glen Barber wrote:
> On Fri, Jul 24, 2015 at 02:54:00AM +0200, Michelle Sullivan wrote:
>   
>>
>> Actually I'm quite sucessfully running zfs on i386 (in a VM) ... here's
>> the trick (which leads me to suspect ARC handling as the problem) - when
>> I get to 512M of kernel space or less than 1G of RAM available system
>> wide, I export/import the zfs pool...  Using this formula I have uptimes
>> of months... I haven't yet tried the 'ARC patch' that was proposed
>> recently...
>>
>> 
>
> Which FreeBSD version is this?  Things changed since 10.1-RELEASE and
> what will be 10.2-RELEASE enough that I can't even get a single-disk ZFS
> system (in VirtualBox) to boot on i386.  During 10.1-RELEASE testing,
> I only saw problems with multi-disk setup (mirror, raidzN), but the
> FreeBSD kernel grew since 10.1-RELEASE, so this is not unexpected.
>   

9.2-i386 and 9.3-i386 - I don't run 10 on anything.

-- 
Michelle Sullivan
http://www.mhix.org/

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Holm Tiffe
Matthew Seaman wrote:

> On 07/24/15 07:58, Holm Tiffe wrote:
> > ..interrestingly people here seem to focus my problem to ZFS.. but my
> > problem was to build an raid over 4 disks on my old i386 machine and that
> > failed with 2 different approaches.
> > 
> > I'm accepting that ZFS is a too big thing for the i386 architecture
> > and I possibly should leave it alone on that machine.
> > 
> > But my 2nd try with gvinum failed also ...why?
> 
> I've had success using a combination of gstripe and gmirror to create a
> RAID10 over 4 drives:
> 
> % gstripe status
>   Name  Status  Components
> stripe/st0  UP  mirror/gm2
> mirror/gm1
> % gmirror status
>   NameStatus  Components
> mirror/gm2  COMPLETE  da0 (ACTIVE)
>   da1 (ACTIVE)
> mirror/gm1  COMPLETE  da2 (ACTIVE)
>   da3 (ACTIVE)
> 
> This is a separate data area though -- system boots from some different
> drives.  I can't remember if it is possible to boot from a gstripe.
> 
>   Cheers,
> 
>   Matthew
> 

gmirror is working for me too (as I already described), I've talking about
gvinum here.., that's different.

Regards,

Holm
-- 
  Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, 
 Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583
  www.tsht.de, i...@tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Matthew Seaman
On 07/24/15 07:58, Holm Tiffe wrote:
> ..interrestingly people here seem to focus my problem to ZFS.. but my
> problem was to build an raid over 4 disks on my old i386 machine and that
> failed with 2 different approaches.
> 
> I'm accepting that ZFS is a too big thing for the i386 architecture
> and I possibly should leave it alone on that machine.
> 
> But my 2nd try with gvinum failed also ...why?

I've had success using a combination of gstripe and gmirror to create a
RAID10 over 4 drives:

% gstripe status
  Name  Status  Components
stripe/st0  UP  mirror/gm2
mirror/gm1
% gmirror status
  NameStatus  Components
mirror/gm2  COMPLETE  da0 (ACTIVE)
  da1 (ACTIVE)
mirror/gm1  COMPLETE  da2 (ACTIVE)
  da3 (ACTIVE)

This is a separate data area though -- system boots from some different
drives.  I can't remember if it is possible to boot from a gstripe.

Cheers,

Matthew



signature.asc
Description: OpenPGP digital signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Matthew Seaman
On 07/24/15 07:58, Holm Tiffe wrote:
> ..interrestingly people here seem to focus my problem to ZFS.. but my
> problem was to build an raid over 4 disks on my old i386 machine and that
> failed with 2 different approaches.
> 
> I'm accepting that ZFS is a too big thing for the i386 architecture
> and I possibly should leave it alone on that machine.
> 
> But my 2nd try with gvinum failed also ...why?

I've had success using a combination of gstripe and gmirror to create a
RAID10 over 4 drives:

% gstripe status
  Name  Status  Components
stripe/st0  UP  mirror/gm2
mirror/gm1
% gmirror status
  NameStatus  Components
mirror/gm2  COMPLETE  da0 (ACTIVE)
  da1 (ACTIVE)
mirror/gm1  COMPLETE  da2 (ACTIVE)
  da3 (ACTIVE)

This is a separate data area though -- system boots from some different
drives.  I can't remember if it is possible to boot from a gstripe.

Cheers,

Matthew



signature.asc
Description: OpenPGP digital signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Holm Tiffe
Glen Barber wrote:

> On Thu, Jul 23, 2015 at 07:44:43PM -0500, Mark Linimon wrote:
> > On Fri, Jul 24, 2015 at 12:43:43AM +, Glen Barber wrote:
> > > Even on amd64, you need to tune the system with less than 4GB RAM.
> > 
> > The only correct answer to "how much RAM do you need to run ZFS" is
> > "always more" AFAICT.
> > 
> 
> There's a bit more to it than that.  You *can* successfully run amd64
> ZFS system with certain tunings (vfs.kmem_max IIRC), but you also need
> to adjust things like disabling prefetching with less than 4GB RAM
> (accessible to the OS).
> 
> So yeah, "more RAM" is always a thing in this playing field.
> 
> Glen
> 


...more RAM? Always more RAM?

Reality check please, this is an i386 Machine with 2 Gbytes.
It has two of 3 sockets polluted with RAM Modules (1G), there is not that
much Space to give it more RAM.

i386 is a supported architecture as far as I know, ok it where nice to
have in i386 with 8 Gigs of RAM but there are not much motherboards out
here that would support this..

This remebers me to microsofts attemts to write Software, always more RAM
and more CPU to fasten up endless loops..

Regards,

Holm
-- 
  Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, 
 Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583
  www.tsht.de, i...@tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-24 Thread Holm Tiffe
Glen Barber wrote:

> On Thu, Jul 23, 2015 at 08:42:44PM -0400, Brandon Allbery wrote:
> > On Thu, Jul 23, 2015 at 8:40 PM, Mark Linimon  wrote:
> > 
> > > zfs is a resource hog.  i386 is not able to handle the demand as well
> > > as amd64.
> > >
> > 
> > Even amd64 is no guarantee. I installed one of the Illumos spinoffs on a
> > 2GB amd64 netbook (they mostly force zfs). I think it lasted 2 days before
> > the kernel panics started.
> > 
> 
> Even on amd64, you need to tune the system with less than 4GB RAM.
> 
> Glen
> 

..interrestingly people here seem to focus my problem to ZFS.. but my
problem was to build an raid over 4 disks on my old i386 machine and that
failed with 2 different approaches.

I'm accepting that ZFS is a too big thing for the i386 architecture
and I possibly should leave it alone on that machine.

But my 2nd try with gvinum failed also ...why?

In the meantime I've set up the first two disks to a geom_mirror and
installed 2x swap and a 66G ufs on the mirror, successfully installed
10.2-Beta, pulled the sources with svn and rebuild the entire world and a
kernel yesterday. That worked flawlessly.
So the hardware is out of the question here.

It seems that geom_vinum is broken and it is broken on 9.3 10.1 and
10.2-Beta. There isn't an other possibility anymore.
Can someone please confirm this with a similar machine?


Proably I could atach an IDE disk and move the new build system to it
to give ZFS a 2nd try on the 4 SCSI Disks to prove if something changed n
the meantime or if a kernel with KSTACK_PAGES=4 would fix the ZFS problem.

I had running gvinum and gmirror on that machine in the past up to
8.4-stable. It seems that we've lost this possibility now..

Regards,

Holm
-- 
  Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, 
 Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583
  www.tsht.de, i...@tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Chris H
On Fri, 24 Jul 2015 01:00:03 + Glen Barber  wrote
..
> FreeBSD kernel grew since 10.1-RELEASE, so this is not unexpected.
Not trying to hijack the thread, or anything.
But on that note; does FreeBSD keep a graph, or anything that indicates
kernel [size] over major versions?

I'm sure I'm not the only one that would find this interesting. :)

--Chris
> 
> Glen


___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Glen Barber
On Fri, Jul 24, 2015 at 02:54:00AM +0200, Michelle Sullivan wrote:
> Glen Barber wrote:
> > On Thu, Jul 23, 2015 at 07:44:43PM -0500, Mark Linimon wrote:
> >   
> >> On Fri, Jul 24, 2015 at 12:43:43AM +, Glen Barber wrote:
> >> 
> >>> Even on amd64, you need to tune the system with less than 4GB RAM.
> >>>   
> >> The only correct answer to "how much RAM do you need to run ZFS" is
> >> "always more" AFAICT.
> >>
> >> 
> >
> > There's a bit more to it than that.  You *can* successfully run amd64
> > ZFS system with certain tunings (vfs.kmem_max IIRC), but you also need
> > to adjust things like disabling prefetching with less than 4GB RAM
> > (accessible to the OS).
> >
> > So yeah, "more RAM" is always a thing in this playing field.
> >
> > Glen
> >
> >   
> Actually I'm quite sucessfully running zfs on i386 (in a VM) ... here's
> the trick (which leads me to suspect ARC handling as the problem) - when
> I get to 512M of kernel space or less than 1G of RAM available system
> wide, I export/import the zfs pool...  Using this formula I have uptimes
> of months... I haven't yet tried the 'ARC patch' that was proposed
> recently...
> 

Which FreeBSD version is this?  Things changed since 10.1-RELEASE and
what will be 10.2-RELEASE enough that I can't even get a single-disk ZFS
system (in VirtualBox) to boot on i386.  During 10.1-RELEASE testing,
I only saw problems with multi-disk setup (mirror, raidzN), but the
FreeBSD kernel grew since 10.1-RELEASE, so this is not unexpected.

Glen



pgpLlYB_ift8p.pgp
Description: PGP signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Michelle Sullivan
Glen Barber wrote:
> On Thu, Jul 23, 2015 at 07:44:43PM -0500, Mark Linimon wrote:
>   
>> On Fri, Jul 24, 2015 at 12:43:43AM +, Glen Barber wrote:
>> 
>>> Even on amd64, you need to tune the system with less than 4GB RAM.
>>>   
>> The only correct answer to "how much RAM do you need to run ZFS" is
>> "always more" AFAICT.
>>
>> 
>
> There's a bit more to it than that.  You *can* successfully run amd64
> ZFS system with certain tunings (vfs.kmem_max IIRC), but you also need
> to adjust things like disabling prefetching with less than 4GB RAM
> (accessible to the OS).
>
> So yeah, "more RAM" is always a thing in this playing field.
>
> Glen
>
>   
Actually I'm quite sucessfully running zfs on i386 (in a VM) ... here's
the trick (which leads me to suspect ARC handling as the problem) - when
I get to 512M of kernel space or less than 1G of RAM available system
wide, I export/import the zfs pool...  Using this formula I have uptimes
of months... I haven't yet tried the 'ARC patch' that was proposed
recently...


-- 
Michelle Sullivan
http://www.mhix.org/

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Glen Barber
On Thu, Jul 23, 2015 at 07:44:43PM -0500, Mark Linimon wrote:
> On Fri, Jul 24, 2015 at 12:43:43AM +, Glen Barber wrote:
> > Even on amd64, you need to tune the system with less than 4GB RAM.
> 
> The only correct answer to "how much RAM do you need to run ZFS" is
> "always more" AFAICT.
> 

There's a bit more to it than that.  You *can* successfully run amd64
ZFS system with certain tunings (vfs.kmem_max IIRC), but you also need
to adjust things like disabling prefetching with less than 4GB RAM
(accessible to the OS).

So yeah, "more RAM" is always a thing in this playing field.

Glen



pgplAqYMvbWtY.pgp
Description: PGP signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Brandon Allbery
On Thu, Jul 23, 2015 at 8:43 PM, Glen Barber  wrote:

> > Even amd64 is no guarantee. I installed one of the Illumos spinoffs on a
> > 2GB amd64 netbook (they mostly force zfs). I think it lasted 2 days
> before
> > the kernel panics started.
> >
>
> Even on amd64, you need to tune the system with less than 4GB RAM.


I knew it wasn't going to fly, in fact I looked for ways to get the
installer to do ufs instead because I couldn't imagine zfs being able to
work in 2GB. Somehow I don't think old netbooks are in Illumos's plans. :)

-- 
brandon s allbery kf8nh   sine nomine associates
allber...@gmail.com  ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonadhttp://sinenomine.net
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Mark Linimon
On Fri, Jul 24, 2015 at 12:43:43AM +, Glen Barber wrote:
> Even on amd64, you need to tune the system with less than 4GB RAM.

The only correct answer to "how much RAM do you need to run ZFS" is
"always more" AFAICT.

mcl
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Glen Barber
On Thu, Jul 23, 2015 at 08:42:44PM -0400, Brandon Allbery wrote:
> On Thu, Jul 23, 2015 at 8:40 PM, Mark Linimon  wrote:
> 
> > zfs is a resource hog.  i386 is not able to handle the demand as well
> > as amd64.
> >
> 
> Even amd64 is no guarantee. I installed one of the Illumos spinoffs on a
> 2GB amd64 netbook (they mostly force zfs). I think it lasted 2 days before
> the kernel panics started.
> 

Even on amd64, you need to tune the system with less than 4GB RAM.

Glen



pgpoZDAUBEQMT.pgp
Description: PGP signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Brandon Allbery
On Thu, Jul 23, 2015 at 8:40 PM, Mark Linimon  wrote:

> zfs is a resource hog.  i386 is not able to handle the demand as well
> as amd64.
>

Even amd64 is no guarantee. I installed one of the Illumos spinoffs on a
2GB amd64 netbook (they mostly force zfs). I think it lasted 2 days before
the kernel panics started.

-- 
brandon s allbery kf8nh   sine nomine associates
allber...@gmail.com  ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonadhttp://sinenomine.net
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Mark Linimon
On Fri, Jul 24, 2015 at 02:19:20AM +0200, Michelle Sullivan wrote:
> Why is zfs on i386 so hard?

zfs is a resource hog.  i386 is not able to handle the demand as well
as amd64.

I have never, ever, heard of anyone who has a deep understanding of
zfs on FreeBSD recommend anything other than amd64.  (Note: I am not
such a person, so I am simply reporting my understanding.)

FWIW, I tried it once.

Once.

After spending a few days inspecting all the bullet holes in my feet,
I moved it off that i386 machine and all the bullet holes healed up.

tl;dr: zfs/i386 Not Recommended.  But YMMV.

mcl
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Glen Barber
On Fri, Jul 24, 2015 at 02:19:20AM +0200, Michelle Sullivan wrote:
> Glen Barber wrote:
> >
> > ZFS on i386 requires KSTACK_PAGES=4 in the kernel configuration to work
> > properly, as noted in the 10.1-RELEASE errata (and release notes, if
> > I remember correctly).
> >
> > We cannot set KSTACK_PAGES=4 in GENERIC by default, as it is too
> > disruptive.  
> 
> Why?
> 

Because it takes resources away from userland threads.

> > If you are using ZFS on i386, you *must* build your own
> > kernel for this.  It is otherwise unsupported by default.
> >   
> Why is zfs on i386 so hard?  Why is it even in the GENERIC kernel if
> it's unsupported?
> 

It is not in GENERIC by default.  You have to specifically kldload(8)
zfs.ko.

Glen



pgpBXn0STiajy.pgp
Description: PGP signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Michelle Sullivan
Glen Barber wrote:
>
> ZFS on i386 requires KSTACK_PAGES=4 in the kernel configuration to work
> properly, as noted in the 10.1-RELEASE errata (and release notes, if
> I remember correctly).
>
> We cannot set KSTACK_PAGES=4 in GENERIC by default, as it is too
> disruptive.  

Why?

> If you are using ZFS on i386, you *must* build your own
> kernel for this.  It is otherwise unsupported by default.
>   
Why is zfs on i386 so hard?  Why is it even in the GENERIC kernel if
it's unsupported?


-- 
Michelle Sullivan
http://www.mhix.org/

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Chris H
On Thu, 23 Jul 2015 23:48:06 + Glen Barber  wrote

> On Thu, Jul 23, 2015 at 07:40:42PM -0400, Jason Unovitch wrote:
> > >> ..uh top quoting..
> > >>
> > >> Trying to mount root from zfs:zroot/ROOT/default [].
> > >>
> > >> Fatal double fault:
> > >> eip = 0xc0b416f5
> > >> esp = 0xe2673000
> > >> ebp = 0xe2673008
> > >> cpuid =0; apic id = 00
> > >> panic: double fault
> > >> cpuid = 0
> > >> KDB stack backtrace:
> > >> #0 0xc0b72832 at kdb_backtrace+0x52
> > >> #1 0xc0b339cb at vpanic+0x11b
> > >> #2 0xc0b338ab at panic+0x1b
> > >> #3 0xc10556 at dblfault_handler+0xab
> > >> Uptime: 11s
> > >> ..
> > >
> > >Looks like the panic I received on my Soekris Net6501-70.
> > >
> > >Fixed in stable/10 in r285759:
> > >https://svnweb.freebsd.org/changeset/base/285759
> > >
> > >Fixed in stable/9 in r285760:
> > >https://svnweb.freebsd.org/changeset/base/285760
> > >
> > 
> > Herbert, in https://bugs.FreeBSD.org/201642 I had tracked down the commit
> > that caused the issue on our Soekris 6501s.  Only between r284297 ->
> > r285662 in HEAD and between r284998 -> r285756 in stable/10 should be
> > affected. 
> > >>>Ok, it is 10.2-BETA so I've tried 10.1-Release next...exactly the same,
> > >>>ok tried 9.3-RELEASE .. the same!
> > 
> > Holm, if you are seeing this on 9.3-RELEASE and 10.1-RELEASE I'm not
> > entirely convinced the cause is the same.
> > 
> 
> ZFS on i386 requires KSTACK_PAGES=4 in the kernel configuration to work
> properly, as noted in the 10.1-RELEASE errata (and release notes, if
> I remember correctly).
> 
> We cannot set KSTACK_PAGES=4 in GENERIC by default, as it is too
> disruptive.  If you are using ZFS on i386, you *must* build your own
> kernel for this.  It is otherwise unsupported by default.
Shouldn't there be a GENERIC kernel with the KSTACK_PAGES=4 option
defined, available? Maybe with one of the bootonly MEMSTICKS, or
something? I know, it's (mostly) crazy to attempt ZFS on an i386. But
it's pretty difficult for someone on 8.x to build a 9.x, or 10.x kernel.
If all they've got is i386 hardware.

Just a thought.

--Chris
> 
> Glen


___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Glen Barber
On Thu, Jul 23, 2015 at 07:40:42PM -0400, Jason Unovitch wrote:
> >> ..uh top quoting..
> >>
> >> Trying to mount root from zfs:zroot/ROOT/default [].
> >>
> >> Fatal double fault:
> >> eip = 0xc0b416f5
> >> esp = 0xe2673000
> >> ebp = 0xe2673008
> >> cpuid =0; apic id = 00
> >> panic: double fault
> >> cpuid = 0
> >> KDB stack backtrace:
> >> #0 0xc0b72832 at kdb_backtrace+0x52
> >> #1 0xc0b339cb at vpanic+0x11b
> >> #2 0xc0b338ab at panic+0x1b
> >> #3 0xc10556 at dblfault_handler+0xab
> >> Uptime: 11s
> >> ..
> >
> >Looks like the panic I received on my Soekris Net6501-70.
> >
> >Fixed in stable/10 in r285759:
> >https://svnweb.freebsd.org/changeset/base/285759
> >
> >Fixed in stable/9 in r285760:
> >https://svnweb.freebsd.org/changeset/base/285760
> >
> 
> Herbert, in https://bugs.FreeBSD.org/201642 I had tracked down the commit
> that caused the issue on our Soekris 6501s.  Only between r284297 -> r285662
> in HEAD and between r284998 -> r285756 in stable/10 should be affected.
> 
> >>>Ok, it is 10.2-BETA so I've tried 10.1-Release next...exactly the same,
> >>>ok tried 9.3-RELEASE .. the same!
> 
> Holm, if you are seeing this on 9.3-RELEASE and 10.1-RELEASE I'm not
> entirely convinced the cause is the same.
> 

ZFS on i386 requires KSTACK_PAGES=4 in the kernel configuration to work
properly, as noted in the 10.1-RELEASE errata (and release notes, if
I remember correctly).

We cannot set KSTACK_PAGES=4 in GENERIC by default, as it is too
disruptive.  If you are using ZFS on i386, you *must* build your own
kernel for this.  It is otherwise unsupported by default.

Glen



pgpx2cp89PFDy.pgp
Description: PGP signature


Re: 10.2-Beta i386..what's wrong..?

2015-07-23 Thread Jason Unovitch

>> ..uh top quoting..
>>
>> Trying to mount root from zfs:zroot/ROOT/default [].
>>
>> Fatal double fault:
>> eip = 0xc0b416f5
>> esp = 0xe2673000
>> ebp = 0xe2673008
>> cpuid =0; apic id = 00
>> panic: double fault
>> cpuid = 0
>> KDB stack backtrace:
>> #0 0xc0b72832 at kdb_backtrace+0x52
>> #1 0xc0b339cb at vpanic+0x11b
>> #2 0xc0b338ab at panic+0x1b
>> #3 0xc10556 at dblfault_handler+0xab
>> Uptime: 11s
>> ..
>
>Looks like the panic I received on my Soekris Net6501-70.
>
>Fixed in stable/10 in r285759:
>https://svnweb.freebsd.org/changeset/base/285759
>
>Fixed in stable/9 in r285760:
>https://svnweb.freebsd.org/changeset/base/285760
>
>--
>Herbert

Herbert, in https://bugs.FreeBSD.org/201642 I had tracked down the 
commit that caused the issue on our Soekris 6501s.  Only between r284297 
-> r285662 in HEAD and between r284998 -> r285756 in stable/10 should be 
affected.


>>>Ok, it is 10.2-BETA so I've tried 10.1-Release next...exactly the same,
>>>ok tried 9.3-RELEASE .. the same!

Holm, if you are seeing this on 9.3-RELEASE and 10.1-RELEASE I'm not 
entirely convinced the cause is the same.


--
Jason
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-22 Thread Herbert J. Skuhra
On Wed, Jul 22, 2015 at 01:57:26PM +0200, Holm Tiffe wrote:
> ..uh top quoting..
> 
> Trying to mount root from zfs:zroot/ROOT/default [].
> 
> Fatal double fault:
> eip = 0xc0b416f5
> esp = 0xe2673000
> ebp = 0xe2673008
> cpuid =0; apic id = 00
> panic: double fault
> cpuid = 0
> KDB stack backtrace:
> #0 0xc0b72832 at kdb_backtrace+0x52
> #1 0xc0b339cb at vpanic+0x11b
> #2 0xc0b338ab at panic+0x1b
> #3 0xc10556 at dblfault_handler+0xab
> Uptime: 11s
> ..

Looks like the panic I received on my Soekris Net6501-70.

Fixed in stable/10 in r285759:
https://svnweb.freebsd.org/changeset/base/285759

Fixed in stable/9 in r285760:
https://svnweb.freebsd.org/changeset/base/285760

-- 
Herbert
___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-22 Thread Holm Tiffe
..uh top quoting..

Trying to mount root from zfs:zroot/ROOT/default [].

Fatal double fault:
eip = 0xc0b416f5
esp = 0xe2673000
ebp = 0xe2673008
cpuid =0; apic id = 00
panic: double fault
cpuid = 0
KDB stack backtrace:
#0 0xc0b72832 at kdb_backtrace+0x52
#1 0xc0b339cb at vpanic+0x11b
#2 0xc0b338ab at panic+0x1b
#3 0xc10556 at dblfault_handler+0xab
Uptime: 11s
..

Don't know if I've blowing the stack, nor I have currently the capabilities
to build an 10.2-Beta install disk with an custom kernel.
I've simply tried to install freebsd on old (trusty) hardware to do some
things..

In the meantime I've tested to install on the single disks with a plain ufs
in the existing gpart partitions (da?p3) und using the swapspace (da?p2).
That where 4 flawless installations, all 4 installed w/o any stall and
where bootable, so the hardware is ok.
Next try is gmirror on 2 gpart disks. I think gvinum is broken with gpart
partitions for since at least 9.3 on i386.


Regards,

Holm


Steven Hartland wrote:

> What's the panic?
> 
> As your using ZFS I'd lay money on the fact your blowing the stack, 
> which would require kernel built with:
> options KSTACK_PAGES=4
> 
> Regards
> Steve
> 
> On 22/07/2015 08:10, Holm Tiffe wrote:
> >Hi,
> >
> >yesterday I've decided to to put my old "Workstation" in my shack and
> >to install a new FreeBSD on it, it is the computer I've used previously
> >for my daily work, reading Mails, programming controllers and so on..
> >
> >It is am AMD XP300+ with an Adaptec 29320 and four IBM 72GB SCSI3 Disks
> >with only 2GB of Memory.
> >
> >I've replaced a bad disk, reformated it so 512 Byte sectors )they came
> >original with 534 or so for ecc),pulled the 10.2-Beta disk1 ISO file from
> >the german mirror and tried to install on a zfs raidz1 which was going
> >flawlessly until the point of booting the installed system, some warnings
> >about zfs and vm... double fault, panic.
> >
> >Later I've read on the net that installing zfs on a 32Bit machine isn't
> >really a good idea, so I tried to install the system on a gvinum raid
> >on gpt partitions.
> >The layout was gpt-boot, 2G swap and the rest raid on every disk so
> >that I could build a striped 8G swap and ~190G raid with gvinum.
> >Installing that worked flawlessly with the install point "shell and doing
> >partitioning per hand". I've made a newfs -U -L root /dev/gvinum/raid,
> >mounted the filesystem to /mnt, activated the swap and put an fstab in
> >/tmp/bsdsomething-etc, exited to install.
> >
> >The installer verified the install containers (base.txz,kernel.txz and
> >so on) and begun to extract them.
> >So far soo good, but while extracting the system repeatedly hung on the
> >very same location. On vt4 I could start a top that was showing an hung
> >bsdtar process in the state wdrain and nothing other happened, the system
> >took a long time to react to keypresses..
> >
> >I've tried to extract the distribution files per hand, same problem, tar
> >hung on extracting kernel.symbols for example, same behavior on other files
> >in base.txz.
> >
> >Ok, it is 10.2-BETA so I've tried 10.1-Release next...exactly the same,
> >ok tried 9.3-RELEASE .. the same!
> >
> >What I'm doning wrong here?
> >
> >Besides of the bad disk that I've changed (IBM-SSG S53D073 C61F) the
> >hardware is very trusty, it is a gigabyte board and I want to keep this
> >machine since it has still floppy capabilites that I need to comunicate
> >with my old CP/M gear and PDP11's. It run for years w/o problems.
> >Capacitors are already changed and ok.
> >
> >Sorry for the wishy-washy error messages above, they are from my memory and
> >from yesterday...
> >
> >Next try was installing the System on a 8G ATA disk that was laying around,
> >went flawlessly, booted it and tried to install the files on the gvinum
> >raid from there...same problem.
> >Changed the 29320 against a 29160 ..same problem.
> >No messages about bad disksor something on the console.
> >
> >What's going on here? The machine run on 8.4-stable before w/o any
> >problems.
> >
> >Regards,
> >
> >Holm
> 
> ___
> freebsd-stable@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"

-- 
  Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, 
 Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583
  www.tsht.de, i...@tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"


Re: 10.2-Beta i386..what's wrong..?

2015-07-22 Thread Steven Hartland

What's the panic?

As your using ZFS I'd lay money on the fact your blowing the stack, 
which would require kernel built with:

options KSTACK_PAGES=4

Regards
Steve

On 22/07/2015 08:10, Holm Tiffe wrote:

Hi,

yesterday I've decided to to put my old "Workstation" in my shack and
to install a new FreeBSD on it, it is the computer I've used previously
for my daily work, reading Mails, programming controllers and so on..

It is am AMD XP300+ with an Adaptec 29320 and four IBM 72GB SCSI3 Disks
with only 2GB of Memory.

I've replaced a bad disk, reformated it so 512 Byte sectors )they came
original with 534 or so for ecc),pulled the 10.2-Beta disk1 ISO file from
the german mirror and tried to install on a zfs raidz1 which was going
flawlessly until the point of booting the installed system, some warnings
about zfs and vm... double fault, panic.

Later I've read on the net that installing zfs on a 32Bit machine isn't
really a good idea, so I tried to install the system on a gvinum raid
on gpt partitions.
The layout was gpt-boot, 2G swap and the rest raid on every disk so
that I could build a striped 8G swap and ~190G raid with gvinum.
Installing that worked flawlessly with the install point "shell and doing
partitioning per hand". I've made a newfs -U -L root /dev/gvinum/raid,
mounted the filesystem to /mnt, activated the swap and put an fstab in
/tmp/bsdsomething-etc, exited to install.

The installer verified the install containers (base.txz,kernel.txz and
so on) and begun to extract them.
So far soo good, but while extracting the system repeatedly hung on the
very same location. On vt4 I could start a top that was showing an hung
bsdtar process in the state wdrain and nothing other happened, the system
took a long time to react to keypresses..

I've tried to extract the distribution files per hand, same problem, tar
hung on extracting kernel.symbols for example, same behavior on other files
in base.txz.

Ok, it is 10.2-BETA so I've tried 10.1-Release next...exactly the same,
ok tried 9.3-RELEASE .. the same!

What I'm doning wrong here?

Besides of the bad disk that I've changed (IBM-SSG S53D073 C61F) the
hardware is very trusty, it is a gigabyte board and I want to keep this
machine since it has still floppy capabilites that I need to comunicate
with my old CP/M gear and PDP11's. It run for years w/o problems.
Capacitors are already changed and ok.

Sorry for the wishy-washy error messages above, they are from my memory and
from yesterday...

Next try was installing the System on a 8G ATA disk that was laying around,
went flawlessly, booted it and tried to install the files on the gvinum
raid from there...same problem.
Changed the 29320 against a 29160 ..same problem.
No messages about bad disksor something on the console.

What's going on here? The machine run on 8.4-stable before w/o any
problems.

Regards,

Holm


___
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"