Date: Sun, 21 Sep 1997 18:41:42 -0400 (EDT) From: Matthew G Newcomb <mn2g+@andrew.cmu.edu> To: aic7xxx@freebsd.org Subject: Overflow/Underflow/Kaboom Message-ID: <4o9O_aO00YUt0ePVQ0@andrew.cmu.edu> References: <Added.Yo9Nr2q00UdgQPEk41@andrew.cmu.edu>
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G'day, I have an adaptec 2940A. It's not exactly a stable device as of yet. I am getting a little desperate, so... anyone who knows how to fix this and tells me will be sent a postcard from the South Pole. (I kid you not, I am going there in a month with the NSF). Attached to it in an external case are the following: Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: SONY Model: SDT-9000 Rev: 0123 Type: Sequential-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 02 Lun: 00 Vendor: QUANTUM Model: FIREBALL ST3.2S Rev: 0F0C Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 03 Lun: 00 Vendor: YAMAHA Model: CDR400t Rev: 1.0d Type: CD-ROM ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 04 Lun: 00 Vendor: QUANTUM Model: FIREBALL ST3.2S Rev: 0F0C Type: Direct-Access ANSI SCSI revision: 02 Everything seems to be working peachily, but one in a while this comes along: aic7xxx: possible overflow at loop 3:8 aic7xxx: possible overflow at loop 4:8 and then: (scsi0:4:0) Underflow - Wanted at least 45056, got 0, residual SG count 26. (scsi0:2:0) Underflow - Wanted at least 21504, got 13312, residual SG count 3. and one in a while these: (scsi0:-1:0) Reset device, active_scb 2 scsi0: (targ -1/chan A) matching scb to (targ 3/chan A) scsi0: (targ -1/chan A) matching scb to (targ 4/chan A) scsi0: (targ -1/chan A) matching scb to (targ 4/chan A) scsi0: (targ -1/chan A) matching scb to (targ 3/chan A) scsi0: (targ -1/chan A) matching scb to (targ 4/chan A) scsi0: (targ -1/chan A) matching scb to (targ 3/chan A) Here's /proc/scsi/aic7xxx0: Adaptec AIC7xxx driver version: 4.1/3.2 Compile Options: AIC7XXX_RESET_DELAY : 15 AIC7XXX_TAGGED_QUEUEING: Enabled AIC7XXX_PAGE_ENABLE : Enabled AIC7XXX_PROC_STATS : Enabled Adapter Configuration: SCSI Adapter: Adaptec AHA-2940A Ultra SCSI host adapter (AIC-786x chipset) Host Bus: Single Base IO: 0xee00 Base IO Memory: 0xfebff000 IRQ: 9 SCBs: Used 8, HW 3, Page 8 Interrupts: 36387 Serial EEPROM: True Extended Translation: Enabled SCSI Bus Reset: Enabled Ultra SCSI: Disabled Target Disconnect: Enabled I am currently running 2.1.55 (after trying 2.0.30 on up...) Are there any kernel configuration options that effect the stability of this driver? If so, could someone please post them, so I can get some more stability out of this.. Matt *In the future* Chickens will run on gasoline and many of them will get surprisingly good gas milage - George Carlin --SAA06975.874880448/po8.andrew.cmu.edu-- *In the future* Chickens will run on gasoline and many of them will get surprisingly good gas milage - George Carlin
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