From mboxrd@z Thu Jan 1 00:00:00 1970 From: William Thompson Subject: Error in syslog on 2.6.20 Date: Fri, 22 Jun 2007 14:40:18 -0400 Message-ID: <20070622184018.GA20301@electro-mechanical.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org List-Id: linux-ide@vger.kernel.org I'm not on either list, keep me in CC. I noticed the following error on a cdrom device: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen ata2.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0 res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout) ata2: soft resetting port ata2.00: configured for MWDMA2 ata2: EH complete This is the device when it was found: libata version 2.00 loaded. ata_piix 0000:00:1f.1: version 2.00ac7 ata1: PATA max UDMA/100 cmd 0x1F0 ctl 0x3F6 bmdma 0xFFA0 irq 14 ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xFFA8 irq 15 scsi0 : ata_piix ata1.00: ATA-4, max UDMA/66, 16514064 sectors: LBA ata1.00: ata1: dev 0 multi count 8 ata1.00: configured for UDMA/66 scsi1 : ata_piix ata2.00: ATAPI, max MWDMA2 ata2.00: configured for MWDMA2 scsi 0:0:0:0: Direct-Access ATA WDC WD84AA 05.0 PQ: 0 ANSI: 5 scsi 1:0:0:0: CD-ROM LITEON CD-ROM LTN486S YQSM PQ: 0 ANSI: 5 I have a program that does a scsi TEST UNIT READY on many devices once every .1 second. The problem occured when I ejected the cdrom and closed the tray again with valid media in the drive. My program noticed media removed and inserted, then said the device was dead/unpollable. This is when I saw this error.