Re: Kernel Panics in 6.1 and 6.2 always Exim 4

2007-09-23 Thread Kris Kennaway

Wil Hatfield wrote:

-Original Message-
From: Kris Kennaway [mailto:[EMAIL PROTECTED]
Sent: Friday, September 21, 2007 5:20 PM
To: Wil Hatfield
Cc: freebsd-questions@freebsd.org
Subject: Re: Kernel Panics in 6.1 and 6.2 always Exim 4


Wil Hatfield wrote:

Well after a year we still haven't tracked down the kernel

panic problems

that are occuring on both our 6.1 and 6.2 machines for those we have had
time to upgrade.  It occurs on 6.1-RC, 6.1-RELEASE 6.1-STABLE,

6.2, you name

it.

We are noticing that all of the dumps are during Exim 4.6x runtime. I am
suspicious of PR-97095 but would like others insights into the

possibility.

Well, as that PR says, the patch was committed after 6.1-RELEASE,
therefore it is expected that older systems will have the problem.  You
only provided a trace from a 6.1 machine, so if you are saying that it
still persists on an up-to-date RELENG_6 kernel, please file a new PR
with the details.

Kris


Unfortunately when I upgraded the machine I have from 6.1-RELEASE to 6.2 it
stopped dumping for me. So I have nothing to analyze. However, I still get
the kernel panics I did before. Same frequency and always Exim.


That is quite contrary to expectations, so you should follow up with the 
PR.  Please try to at least take a photo of the panic traceback from DDB 
or something.


Kris

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RE: Kernel Panics in 6.1 and 6.2 always Exim 4

2007-09-23 Thread Wil Hatfield

> -Original Message-
> From: Kris Kennaway [mailto:[EMAIL PROTECTED]
> Sent: Friday, September 21, 2007 5:20 PM
> To: Wil Hatfield
> Cc: freebsd-questions@freebsd.org
> Subject: Re: Kernel Panics in 6.1 and 6.2 always Exim 4
>
>
> Wil Hatfield wrote:
> > Well after a year we still haven't tracked down the kernel
> panic problems
> > that are occuring on both our 6.1 and 6.2 machines for those we have had
> > time to upgrade.  It occurs on 6.1-RC, 6.1-RELEASE 6.1-STABLE,
> 6.2, you name
> > it.
> >
> > We are noticing that all of the dumps are during Exim 4.6x runtime. I am
> > suspicious of PR-97095 but would like others insights into the
> possibility.
>
> Well, as that PR says, the patch was committed after 6.1-RELEASE,
> therefore it is expected that older systems will have the problem.  You
> only provided a trace from a 6.1 machine, so if you are saying that it
> still persists on an up-to-date RELENG_6 kernel, please file a new PR
> with the details.
>
> Kris

Unfortunately when I upgraded the machine I have from 6.1-RELEASE to 6.2 it
stopped dumping for me. So I have nothing to analyze. However, I still get
the kernel panics I did before. Same frequency and always Exim.

I bumped into a thread somewhere that said something about setting
nmbclusters=0 might be a good workaround for this bug. Anybody heard
anything about this or does it seem logical?

Wil

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Re: Kernel Panics in 6.1 and 6.2 always Exim 4

2007-09-21 Thread Kris Kennaway

Wil Hatfield wrote:

Well after a year we still haven't tracked down the kernel panic problems
that are occuring on both our 6.1 and 6.2 machines for those we have had
time to upgrade.  It occurs on 6.1-RC, 6.1-RELEASE 6.1-STABLE, 6.2, you name
it.

We are noticing that all of the dumps are during Exim 4.6x runtime. I am
suspicious of PR-97095 but would like others insights into the possibility.


Well, as that PR says, the patch was committed after 6.1-RELEASE, 
therefore it is expected that older systems will have the problem.  You 
only provided a trace from a 6.1 machine, so if you are saying that it 
still persists on an up-to-date RELENG_6 kernel, please file a new PR 
with the details.


Kris

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Re: Kernel Panics in 6.1 and 6.2 always Exim 4

2007-09-21 Thread Chuck Swiger

On Sep 21, 2007, at 4:11 PM, Wil Hatfield wrote:

IP Filter: v4.1.8 initialized.  Default = block all, Logging = enabled
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding  
disabled,

default to deny, logging unlimited


Do you really need to run both IPFW and IP Filter at the same time?   
Can you nix one of 'em?



ad0: 76319MB  at ata0-master UDMA100
acd0: CDROM  at ata1-master UDMA33
Trying to mount root from ufs:/dev/ad0s1a
WARNING: / was not properly dismounted
g_vfs_done():md0[WRITE(offset=23527424, length=131072)]error = 28
g_vfs_done():md0[WRITE(offset=23805952, length=32768)]error = 28


errno 28 means:

#define ENOSPC  28  /* No space left on device */

...are you using a RAMDISK (md0 implies yes)?  Is Exim filling it  
up?  Are you using a malloc(9) based md, or a swap-based md?


--
-Chuck

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