Date: Mon, 7 Dec 1998 19:43:47 -0500 (EST) From: Doug Ledford <dledford@redhat.com> To: Mike Leddy <mike@ultranet.com.br> Cc: "aic7xxx@FreeBSD.ORG" <aic7xxx@FreeBSD.ORG> Subject: Re: 2.0.36 + aic7xxx + 294X = Fragile Message-ID: <Pine.LNX.4.04.9812071942110.1399-100000@kabal.redhat.com> In-Reply-To: <3665463A.EF70E9A2@ultranet.com.br>
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On Wed, 2 Dec 1998, Mike Leddy wrote: > I started using one of my low load servers for backup images to > and found that running md5sum on a large file caused my SCSI > drive to lock up. > > Sorry, no warning messages with aic7xxx=verbose > > I tried md5sum /dev/zero - no problems > > I installed an old IDE drive and using it everything worked fine so > my machine is OK. > > I went back to an older 2.0.33 and the same test caused kernel > paging faults or crashed the system. > > In summary I've got a system that boots and under normal load > works fine, but 'md5sum a-large-file' causes the SCSI disk to lock > up after approx 2 minutes. > > I'll be happy to carry out any tests that may be of use or provide > any further information. Sounds like a bad SIMM in the machine or a bad CPU fan. Even if it works with IDE, that's mostly irrelevant because the average SCSI drive on an aic7xxx controller will outrun the average IDE drive by a large degree (and the particular Quantum drive you have is a pretty good drive actually). When the SCSI drives run the system that much faster, it can cause bit flips problems in RAM/Cache to show up that were hidden before. > > ---------------------------------------------------------------------- > Its got an oldish v1.2 firmware > ---------------------------------------------------------------------- > (scsi0) <Adaptec AHA-294X Ultra SCSI host adapter> found at PCI 14/0 > (scsi0) Narrow Channel, SCSI ID=7, 16/255 SCBs > (scsi0) Warning - detected auto-termination > (scsi0) Please verify driver detected settings are correct. > (scsi0) If not, then please properly set the device termination > (scsi0) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted > (scsi0) during machine bootup. > (scsi0) Cables present (Int-50 YES, Ext-50 NO) > (scsi0) Downloading sequencer code... 419 instructions downloaded > scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.4/3.2.4 > <Adaptec AHA-294X Ultra SCSI host adapter> > scsi : 1 host. > Vendor: QUANTUM Model: VP32210 Rev: 81H8 > Type: Direct-Access ANSI SCSI revision: 02 > Detected scsi disk sda at scsi0, channel 0, id 0, lun 0 > scsi : detected 1 SCSI disk total. > (scsi0:0:0:0) Synchronous at 10.0 Mbyte/sec, offset 15. > SCSI device sda: hdwr sector= 512 bytes. Sectors= 4308352 [2103 MB] [2.1 GB] > ---------------------------------------------------------------------- > Adaptec AIC7xxx driver version: 5.1.4/3.2.4 > Compile Options: > AIC7XXX_RESET_DELAY : 5 > AIC7XXX_TAGGED_QUEUEING: Adapter Support Enabled > Check below to see which > devices use tagged queueing > AIC7XXX_PAGE_ENABLE : Enabled (This is no longer an option) > AIC7XXX_PROC_STATS : Enabled > > Adapter Configuration: > SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter > Ultra Narrow Controller > PCI MMAPed I/O Base: 0xffbef000 > Adapter SEEPROM Config: SEEPROM found and used. > Adaptec SCSI BIOS: Enabled > IRQ: 11 > SCBs: Active 0, Max Active 1, > Allocated 15, HW 16, Page 255 > Interrupts: 152650 > BIOS Control Word: 0x08b6 > Adapter Control Word: 0x005d > Extended Translation: Enabled > Disconnect Enable Flags: 0x00ff > Ultra Enable Flags: 0x0000 > Tag Queue Enable Flags: 0x0000 > Ordered Queue Tag Flags: 0x0000 > Default Tag Queue Depth: 8 > Tagged Queue By Device array for aic7xxx host instance 0: > {255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255} > Actual queue depth per device for aic7xxx host instance 0: > {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1} > > Statistics: > (scsi0:0:0:0) > Device using Narrow/Sync transfers at > 10.0 MByte/sec, offset 15 > Device Negotiation Settings > Period Offset Bus Width > User 025 015 0 > Goal 025 015 0 > Current 025 015 0 > Total transfers 152621 (14922 read;137699 written) > blks(512) rd=62915; blks(512) wr=324756 > < 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K > Reads: 0 1 10916 413 2600 960 18 12 2 0 > Writes: 0 0 118430 19146 40 25 51 4 3 0 > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-aic7xxx" in the body of the message > Doug Ledford <dledford@redhat.com> Opinions expressed are my own, but they should be everybody's. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-aic7xxx" in the body of the message
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