Re: Instant reboot with FreeBSD 6.3 and > 2GB RAM

2008-06-06 Thread Volker Theile
Hello,

i can confirm that the bug fix submitted with PR 108215 solves the reboot 
problem when using mfsroot images in FreeBSD 6.3. I will test it also on 
FreeBSD 7.0, but i assume that it will fix it there too.
Many users using FreeNAS reporting this reboot problem on their machines with 
RAM > 2GB.

Regards
Volker

 Original-Nachricht 
> Datum: Wed, 21 May 2008 21:08:25 +0200
> Von: Volker <[EMAIL PROTECTED]>
> An: [EMAIL PROTECTED]
> CC: [EMAIL PROTECTED], freebsd-questions@freebsd.org
> Betreff: Re: Instant reboot with FreeBSD 6.3 and > 2GB RAM

> On 12/23/-58 20:59, [EMAIL PROTECTED] wrote:
> > Hello,
> > 
> > some users of FreeNAS which is based on FreeBSD 6.3 reported instant
> reboots on systems with > 2GB RAM (most of them use 4GB). The reboot occurs
> right after displaying the FreeBSD loader menu. Most of them told me that
> they can boot if they reduce RAM to <= 2GB.
> > 
> > We are using the following kernel configuration which is based on
> GENERIC:
> >
> http://freenas.svn.sourceforge.net/viewvc/freenas/branches/0.69/build/kernel-config/FREENAS-i386?revision=3291&view=markup
> > 
> > I found out another problem that causes a reboot on my 2GB machine. We
> are using a image for the LiveCD which is 64MB great. If i change back
> mfs_root size to 63MB all works well, but all above 64MB causes a reboot.
> > Is there any limitation?
> > 
> > Could someone help me out of this problem?
> > 
> > Regards
> > Volker
> 
> Hi Volker ;)
> 
> I'm not quite sure about your 2nd problem and your report is not quite
> detailed but from your description it looks like loader is causing that.
> As there's no filesystem available at that time, the loader has to read
> itself through the filesystem structures.
> 
> Knowing that, PR misc/108215 comes to mind. I've not been able to check
> if the issue and the patch to it is right but you may give it a try.
> Probably somebody with loader and filesystem (ufs) knowledge may answer
> that question quickly if the patch contained in the PR is right.
> 
> The report is about 6.2-R but at least I've checked loader code and 7.x
> code is the same. I came across that report yesterday and was unable to
> check the calculation.
> 
> If that is really the case, your problem may be related to that.
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=108215
> 
> Assuming the problem report is right, it's about reading huge files by
> loader reads in wrong sectors.
> 
> HTH
> 
> Volker

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Re: Instant reboot with FreeBSD 6.3 and > 2GB RAM

2008-05-21 Thread Volker
On 12/23/-58 20:59, [EMAIL PROTECTED] wrote:
> Hello,
> 
> some users of FreeNAS which is based on FreeBSD 6.3 reported instant reboots 
> on systems with > 2GB RAM (most of them use 4GB). The reboot occurs right 
> after displaying the FreeBSD loader menu. Most of them told me that they can 
> boot if they reduce RAM to <= 2GB.
> 
> We are using the following kernel configuration which is based on GENERIC:
> http://freenas.svn.sourceforge.net/viewvc/freenas/branches/0.69/build/kernel-config/FREENAS-i386?revision=3291&view=markup
> 
> I found out another problem that causes a reboot on my 2GB machine. We are 
> using a image for the LiveCD which is 64MB great. If i change back mfs_root 
> size to 63MB all works well, but all above 64MB causes a reboot.
> Is there any limitation?
> 
> Could someone help me out of this problem?
> 
> Regards
> Volker

Hi Volker ;)

I'm not quite sure about your 2nd problem and your report is not quite
detailed but from your description it looks like loader is causing that.
As there's no filesystem available at that time, the loader has to read
itself through the filesystem structures.

Knowing that, PR misc/108215 comes to mind. I've not been able to check
if the issue and the patch to it is right but you may give it a try.
Probably somebody with loader and filesystem (ufs) knowledge may answer
that question quickly if the patch contained in the PR is right.

The report is about 6.2-R but at least I've checked loader code and 7.x
code is the same. I came across that report yesterday and was unable to
check the calculation.

If that is really the case, your problem may be related to that.

http://www.freebsd.org/cgi/query-pr.cgi?pr=108215

Assuming the problem report is right, it's about reading huge files by
loader reads in wrong sectors.

HTH

Volker
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Re: Instant reboot with FreeBSD 6.3 and > 2GB RAM

2008-05-21 Thread Jeremy Chadwick
On Wed, May 21, 2008 at 10:01:56AM +0200, [EMAIL PROTECTED] wrote:
> Hello,
> 
> some users of FreeNAS which is based on FreeBSD 6.3 reported instant reboots 
> on systems with > 2GB RAM (most of them use 4GB). The reboot occurs right 
> after displaying the FreeBSD loader menu. Most of them told me that they can 
> boot if they reduce RAM to <= 2GB.
> 
> We are using the following kernel configuration which is based on GENERIC:
> http://freenas.svn.sourceforge.net/viewvc/freenas/branches/0.69/build/kernel-config/FREENAS-i386?revision=3291&view=markup
> 
> I found out another problem that causes a reboot on my 2GB machine. We are 
> using a image for the LiveCD which is 64MB great. If i change back mfs_root 
> size to 63MB all works well, but all above 64MB causes a reboot.
> Is there any limitation?
> 
> Could someone help me out of this problem?

Is the mfsroot problem what I've documented here?

http://jdc.parodius.com/freebsd/pxeboot_serial_install.html#step7

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: Instant reboot with FreeBSD 6.3 and > 2GB RAM

2008-05-21 Thread Vivek Khera


On May 21, 2008, at 4:01 AM, [EMAIL PROTECTED] wrote:

some users of FreeNAS which is based on FreeBSD 6.3 reported instant  
reboots on systems with > 2GB RAM (most of them use 4GB). The reboot  
occurs right after displaying the FreeBSD loader menu. Most of them  
told me that they can boot if they reduce RAM to <= 2GB.


For what it's worth, I have run several systems with 4GB RAM on  
FreeBSD/i386 6.3.  The only i386 I have left with this much RAM was  
recently upgraded to 7.0; the rest of my large RAM systems run FreeBSD/ 
amd64.


I didn't see anything obviously bad in your kernel config.

By the way, thanks for making FreeNAS... I use it on my home NFS/AFP  
server to great success... the only thing I wish it included was the  
amrstat binary to test my LSI RAID controller status (I just copy it  
from another 6.3 system I have and it works).


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Instant reboot with FreeBSD 6.3 and > 2GB RAM

2008-05-21 Thread votdev
Hello,

some users of FreeNAS which is based on FreeBSD 6.3 reported instant reboots on 
systems with > 2GB RAM (most of them use 4GB). The reboot occurs right after 
displaying the FreeBSD loader menu. Most of them told me that they can boot if 
they reduce RAM to <= 2GB.

We are using the following kernel configuration which is based on GENERIC:
http://freenas.svn.sourceforge.net/viewvc/freenas/branches/0.69/build/kernel-config/FREENAS-i386?revision=3291&view=markup

I found out another problem that causes a reboot on my 2GB machine. We are 
using a image for the LiveCD which is 64MB great. If i change back mfs_root 
size to 63MB all works well, but all above 64MB causes a reboot.
Is there any limitation?

Could someone help me out of this problem?

Regards
Volker
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