On 21 Jan, 2005, at 11:56, Colin J. Raven wrote:
On Jan 21 at 11:36, R D L Smith asked the panel:
I have a teramac R310-1U from DNUK running 5.3-RELEASE-p1. It is the only
server I have running 5.x. ISTR that the SiS chip set prevented me loading
4.x.
The uptime of this server is good unless its under heavy load. When MySQL
(with InnoDB) is being worked hard, the server will reboot after a few hours.
However, build world will not crash it.
I have added the following to rc.conf:
dumpdev="/dev/ad0s1b"
and the following to the kernel configuration file:
makeoptions DEBUG=-g options KDB options PANIC_REBOOT_WAIT_TIME=-1
I have also connected a serial console to the serial port and logged in as
"root".
I never get a dump file and I never get a message at the console. I don't
know what else I can do other than strike this hardware vendor off my list
and dump the server. This machine has already had its motherboard replaced.
What about the power supply?
There has been quite a lot of traffic of late concerning so-called "spontaneous reboots" and so far - *IIRC* - none of the incidents were directly attributed to causes _other than_ balky power spupplies, and in one recent case interestingly, a defective UPS!!
I think it's probably worth shoving a new PS in there, these days they are far from expensive, in order to see if that eliminates further instances of the problem.
I did consider that the previous time I was trying to get to the bottom of the problem. The problem is easy to reproduce, simply by starting mysqld and getting it to replicate.
I do not normally blame FreeBSD. I have been using it very successfully for years in a production environment. This is the first server I have had with this particular chip set, and I have read about problems with the chip set in the past.
It seems to be disk related - it could certainly be a hardware fault (cables or disk drive - as I said before, the motherboard has been replaced already) - if anyone out there is successfully using this hardware with FreeBSD, I could at least eliminate a device driver related problem.
My other concern is that I do not understand why I do not get any diagnostics.
I suppose much depends on whether or not you really want to -as you put it - 'dump the server'. Should you elect to do so, please feel free to ship it across the North Sea to me, I'll be happy to pay for the shipping, deal with its little idiosyncracies and give it a "second life" :-)
I will keep that in mind ;-)
-- R D L Smith Network Systems Director Satamatics Limited Gloucester Road, Tewkesbury, GL20 5TT, United Kingdom T: +44 1684 278610 F: +44 1684 278611 E: [EMAIL PROTECTED]
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