Date: Thu, 12 Aug 2004 00:09:57 +0200 From: "Terrence Koeman" <root@mediamonks.net> To: "'Doug White'" <dwhite@gumbysoft.com> Cc: 'John Baldwin' <jhb@FreeBSD.org> Subject: RE: Lock order reversal in 5.2-CURRENT Message-ID: <20040812000885.SM01804@manrikigusari> In-Reply-To: <20040811101859.P99067@carver.gumbysoft.com>
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This is a multi-part message in MIME format. ------=_NextPart_000_0015_01C48000.B27F0280 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit > -----Original Message----- > From: owner-freebsd-current@freebsd.org > [mailto:owner-freebsd-current@freebsd.org] On Behalf Of Doug White > Sent: Wednesday, August 11, 2004 19:22 > To: Terrence Koeman > Cc: freebsd-current@FreeBSD.org; 'John Baldwin' > Subject: RE: Lock order reversal in 5.2-CURRENT > > On Wed, 11 Aug 2004, Terrence Koeman wrote: > > > I think something else is wrong, as I get different lock > order reversals and > > some other errors that all lockup the box. Earlier I had a > corrupted cc > > binary after a buildworld. > > > > Everything points to a hardware failure somewhere, but I > already switched > > the hardware before this happened, I swapped RAID arrays in > identical > > machines, and the machine where -CURRENT runs on now was a > production server > > that ran 4.9/4.10-STABLE for months under heavy load > without any problems > > whatsoever. > > > > The following is what I got today: > > > > Second bad > > /: bad dir ino 16110954 at offset 24: mangled entry > > panic: ufs_dirbad: bad dir > > Your RAID is doing a really good job of corrupting your data. :) What > RAID controller and volume layout are you using? It's a Promise FastTrak TX2000 with two mirrored 160Gb Maxtor drives. > > Fatal trap 18: integer divide fault while in kernel mode > > This looks more serious .. you may have a bad CPU, memory, or > some other > critical component. I thought so too, because multiple weird errors usually point to the hardware. But I have three identical systems with the only difference being the contents of the disks. The other two systems are running 4.10-STABLE with heavy load without any problems. I swapped the disks (only the disks) with a working system twice now and it locks up just the same. I think the chance of three systems having the same hardware problem is really small, especially because 4.10-STABLE hasn't had a single problem on those systems in the couple of months they run. Maybe 5.2-CURRENT has a specific problem with the hardware in the systems? But it's not like it is exotic hardware, they are SuperMicro 1U barebones with a Celeron 2600, 512MB of RAM and a FastTrak TX2000. -- Regards, Terrence Koeman MediaMonks B.V. 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