Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 23 Nov 2002 09:30:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 23 Nov 2002 09:30:29 -0500 Received: from steve.prima.de ([62.72.84.2]:55272 "HELO steve.prima.de") by vger.kernel.org with SMTP id ; Sat, 23 Nov 2002 09:30:27 -0500 Date: Sat, 23 Nov 2002 15:37:00 +0100 From: Patrick Mau To: Linux Kernel Subject: AIC7xxx error messages with linux 2.5 BK-CURRENT Message-ID: <20021123143700.GA17472@oscar.homelinux.net> Reply-To: Patrick Mau Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5407 Lines: 131 Hallo everyone, using the current BK snapshot of linux 2.5, I see many of the following messages in my syslog: Nov 23 14:58:29 tony kernel: Saw underflow (1012 of 1024 bytes). Treated as error The message are apparently caused by the AIC7xxx driver accessing my harddrives. There is no negative effect though. All filesystem operations appear to be OK. As you can see below, I have four U160 IBM disks connected to an Adaptec 3960D Ultra160 SCSI adapter. The Tag Queue Depth is limited to 16. Both channels share IRQ 9. The data was collected after boot, logged on into an X session. Do I have to worry about that ? Thanks, Patrick Here's some relevant hardware info: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.4 aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs (scsi0:A:0): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Vendor: IBM Model: IC35L036UCD210-0 Rev: S5BA Type: Direct-Access ANSI SCSI revision: 03 (scsi0:A:1): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Vendor: IBM Model: IC35L036UCD210-0 Rev: S5BA Type: Direct-Access ANSI SCSI revision: 03 scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.4 aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs (scsi1:A:0): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Vendor: IBM Model: IC35L036UWD210-0 Rev: S5BS Type: Direct-Access ANSI SCSI revision: 03 (scsi1:A:1): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Vendor: IBM Model: IC35L036UWD210-0 Rev: S5BS Type: Direct-Access ANSI SCSI revision: 03 scsi0:A:0:0: Tagged Queuing enabled. Depth 16 SCSI device sda: drive cache: write back SCSI device sda: 71687340 512-byte hdwr sectors (36704 MB) sda: sda1 sda2 sda3 sda4 Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 scsi0:A:1:0: Tagged Queuing enabled. Depth 16 SCSI device sdb: drive cache: write back SCSI device sdb: 71687340 512-byte hdwr sectors (36704 MB) sdb: sdb1 sdb2 sdb3 sdb4 Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0 scsi1:A:0:0: Tagged Queuing enabled. Depth 16 SCSI device sdc: drive cache: write back SCSI device sdc: 71687340 512-byte hdwr sectors (36704 MB) sdc: sdc1 sdc2 sdc3 sdc4 Attached scsi disk sdc at scsi1, channel 0, id 0, lun 0 scsi1:A:1:0: Tagged Queuing enabled. Depth 16 SCSI device sdd: drive cache: write back SCSI device sdd: 71687340 512-byte hdwr sectors (36704 MB) sdd: sdd1 sdd2 sdd3 sdd4 Attached scsi disk sdd at scsi1, channel 0, id 1, lun 0 [root@tony] cat /proc/scsi/aic7xxx/0 Adaptec AIC7xxx driver version: 6.2.4 aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs Channel A Target 0 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 0 Lun 0 Settings Commands Queued 1026 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 1 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 1 Lun 0 Settings Commands Queued 993 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 [root@tony] cat /proc/scsi/aic7xxx/1 Adaptec AIC7xxx driver version: 6.2.4 aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs Channel A Target 0 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 0 Lun 0 Settings Commands Queued 3079 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 1 Negotiation Settings User: 160.000MB/s transfers (80.000MHz DT, offset 255, 16bit) Goal: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Curr: 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) Channel A Target 1 Lun 0 Settings Commands Queued 1410 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 [root@tony] cat /proc/interrupts CPU0 0: 1953494 XT-PIC timer 1: 3372 XT-PIC i8042 2: 0 XT-PIC cascade 8: 1 XT-PIC rtc 9: 6689 XT-PIC aic7xxx, aic7xxx - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/