Suddenly lots processes exits signal 11 (core dumped)

[Devin Teske]

> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org [mailto:owner-freebsd-
> questions at freebsd.org] On Behalf Of Robison, Dave
> Sent: Tuesday, April 26, 2011 10:46 AM
> To: freebsd-questions at freebsd.org
> Subject: Re: Suddenly lots processes exits signal 11 (core dumped)
> 
> I second the idea that this is a RAM issue.
> 
> Power down, ground yourself, remove and re-seat the RAM and see if the
> problem goes away.

Here's a small ISO containing memtest86 (and more). This ISO is a "hybrid ISO" meaning that you can either burn it to CD/DVD and boot off it, or you can dd(1) it to a thumb drive and boot off that.

http://sourceforge.net/projects/druidbsd/files/Druid-0.0.iso/download

Here's the instructions for writing it to USB (you likely already know how to write an ISO to CD/DVD):

1. Download Druid-0.0.iso
2. Insert thumb drive
3. Execute: camcontrol devlist
NOTE: find the `daN' device associated with your thumb drive
4. Execute: dd if=Druid-0.0.iso of=/dev/da5
NOTE: assuming `da5' is your thumb drive

--- At this point, your thumb drive is ready to rock and roll ---

Continue on to create a 2nd [visible] partition beyond the primary bootable [invisible] partition (allowing you to use the remainder of your thumb drive for usable storage)...

5. Execute: echo "p 2 0x0c * *" | fdisk -f - /dev/da5
NOTE: again, assuming `da5' is your thumb drive
6. Execute: newfs_msdos /dev/da5s2
NOTE: again, assuming `da5' is your thumb drive

That's it. You now have a thumb drive with:

a. An invisible boot partition for booting into Druid (a disc full of tools).
b. A visible partition for storage, usable under Mac, Windows, Linux, and UNIX.

NOTE: This won't work with just ANY iso file, just ISOs that have been post-processed with ISOLINUX's isohybrid utility.
--
Devin


> 
> On 04/26/2011 07:35, Mikael Bak wrote:
> > C. P. Ghost wrote:
> >> On Tue, Apr 26, 2011 at 4:02 PM, Mikael Bak<mbak at inbox.lv>  wrote:
> >>> Hi list,
> >>>
> >>> I have a system running FreeBSD 7.3. Its main function is running
> >>> Postfix SMTP server and a few perl based content filters. Nothing
> >>> exotic really.
> >>>
> >>> It has been nicely up and running approx 150 days when it suddenly
> >>> starts behaving very strange.
> >>>
> >>> First I noticed a converter script failing. It is basically a small
> >>> shell script that converts a quite big file replacing a few words
> >>> using sed. The output is mostly damaged.
> >>>
> >>> Another problem is that lots of processes exits signal 11 (core dumped).
> >>> And I need to restart them by hand. See dmesg output below.
> >>>
> >>> I know I don't give you guys much to go on. I just want to know it
> >>> it's possible to find out somehow if some hardware is failing and
> >>> must be changed.
> >>>
> >>> My first thought was overheating. But my collegue went to the site
> >>> and he said the hardware is not hot at all.
> >> If you didn't update the OS or the apps, it is almost certainly
> >> hardware- related. Probably a bad PSU, or bad RAM. The box doesn't
> >> have to overheat when one of those are degraded.
> >>
> > Hi,
> > Thanks fot the fast answer!
> >
> > The OS is regularly updated with "freebsd-update", but only within 7.3
> > version.
> >
> > The apps are regularly updated with "portmaster".
> >
> > So I can't say nothig's ever changed. But I can only say that this is
> > the only machine I've ever seen behave like this.
> >
> > TIA,
> > Mikael
> >
> > _______________________________________________
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> unsubscribe at freebsd.org"
> >
> 
> 
> --
> Dave Robison
> Sales Solution Architect II
> FIS Banking Solutions
> 510/621-2089 (w)
> 530/518-5194 (c)
> 510/621-2020 (f)
> daver at vicor.com
> david.robison at fisglobal.com
> 
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The information contained in this message is proprietary and/or confidential. If you are not the intended recipient, please: (i) delete the message and all copies; (ii) do not disclose, distribute or use the message in any manner; and (iii) notify the sender immediately. In addition, please be aware that any message addressed to our domain is subject to archiving and review by persons other than the intended recipient. Thank you.
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