Date: Mon, 27 Apr 1998 22:46:09 -0700 From: Matthew Jacob <mjacob@feral.com> To: aic7xxx@FreeBSD.ORG Subject: linux: the tag that wouldn't die? Message-ID: <35456D21.53E45A9D@feral.com>
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I have a system with a Pentium on a PIC/MIG card with an
onboard AIC chip- and a pretty simple setup:
(scsi0) <Adaptec AIC-7880 Ultra SCSI host adapter> found at PCI 13/0
(scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs
(scsi0) BIOS enabled, IO Port 0x6000, IRQ 11
(scsi0) IO Memory at 0xe1000000, MMAP Memory at 0x0282c000
(scsi0) Resetting channel
(scsi0) Downloading sequencer code... 406 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.0.9/3.2.2
<Adaptec AIC-7880 Ultra SCSI host adapter>
scsi : 1 host.
(scsi0:0:-1:-1) Scanning channel for devices.
(scsi0:0:0:0) Using wide (16 bit) transfers.
(scsi0:0:0:0) Synchronous at 10.0MHz, offset 8.
Vendor: SEAGATE Model: ST32171W Rev: 0338
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
(scsi0:0:1:0) Using wide (16 bit) transfers.
(scsi0:0:1:0) Synchronous at 10.0MHz, offset 8.
Vendor: SEAGATE Model: ST32171W Rev: 0484
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 1, lun 0
I'm running a pretty heavy DMA and PCI bus access load- every
now and then, the linux aic driver gets stuck in the following
horrible scenario- something times out, and then I get stuck
with an infinite sequence of:
SCSI host 1 abort (pid 253052) timed out - resetting
SCSI bus is being reset for host 1 channel 0.
(scsi1:0:0:0) Invalid SCB ID 28 is active, SCB flags = 0x805.
Anyone got a notion about what this might be about?
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