Messages in this thread | | | Date | Mon, 11 Mar 1996 19:19:02 +0000 (WET) | From | Johan Henselmans <> | Subject | Re: SCSI Kernel Problem - BAD |
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On Mon, 11 Mar 1996, Benson L Chow wrote:
> In-Reply-To: <199603102315.PAA00407@dandelion.com> > References: <199603102315.PAA00407@dandelion.com> > > > Another "Me Too" post about the SCSI problem -- > > I have a Conner 1060S with the firmware patch and a NCR 53c810 board > (made by NexStor) running on a Triton based PCI mb (I have 24 MB of RAM > for the record, maybe the buffer cache causes extra timing > constraints?). It causes the machine to lock solid, and the machine > won't sync() so I never could get a syslog dump, though it is similar to > what's posted earlier. The problem is reproducable but not always > consistent. Here was my results with the release 17 driver on kernel > 1.3.5_ (I forget which, it was a while ago -- and I was fed up and > reverted to the aha152x driver which seems stable) > > 750 meg ext2fs partition, at end of disk. Copying (with cp -av file1 > file2) 24 meg file causes it to crash almost immediately (about 1 meg > into the copy). cd, ls, df, hdparm -t /dev/sda, du, dd if=/dev/sda3 > of=/dev/null, all work without any trouble. (destination of data was to > my IDE primary disk) hdparm reports a transfer rate of about 3.6 > MB/second with the disk. > > 30 meg ext2fs partition (on 1GB disk at beginning of disk), copying 30 meg > file from the disk to the IDE. No problems whatsoever. > > 1GB MSDOS/VFAT/UMSDOS partition, copying 24 meg file. Occasionally > crashes, mean time between crashes increased about fourfold. Sometimes > I can copy the file, sometimes not. > > I've tried my CPU clock speed and playing with termination; it didn't > seem to help. > > Win95/MSDOS/Win31 works fine with the subsystem (which is why I > reluctantly decided to format the disk under FAT :( > > Hope this leads to some ideas of what's wrong. Some people I've > corresponded to have claimed defective motherboards, etc., and I'm not > too sure why it works fine under win95 using its protected mode drivers? > >
I think it is related to the NCR 53c810 and some PCI Motherboard code, and intense disk usage (e.g. newsspool) I had a similar problem with that type of configuration. (16 MB Memory) Perhaps with some early versions of PCI? BIOS?
Regards,
Johan
Johan Henselmans work: johan@netsense.nl tel: (+31)-(0)20-6261180 Netsense bv, Nieuwe Herengracht 147 1011 SG Amsterdam home: johan@hsb.nest.nl tel: (+31)-(0)20-6267538 Nieuwe Herengracht 147d 1011 SG Amsterdam
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