Date: Tue, 16 Sep 2008 10:04:52 -0700 From: Clint Olsen <clint.olsen@gmail.com> To: stable@freebsd.org Subject: Help debugging DMA_READ errors Message-ID: <20080916170452.GB4861@0lsen.net>
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Ok, I've had some flakiness with my 6.3-STABLE (Sun May 25 21:55:57 PDT 2008) box. I assume that these errors are indicative of a system-level problem rather than a single disk: Event 1 ------- Sep 14 05:12:54 belle kernel: ad0: TIMEOUT - READ_DMA retrying (1 retry left) LBA=216477719 Result: Hard reset required Event 2 ------- Sep 16 02:11:09 belle kernel: ad4: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=172088735 Sep 16 02:13:08 belle kernel: acd0: WARNING - READ_TOC taskqueue timeout - completing request directly Sep 16 02:13:09 belle kernel: acd0: timeout waiting for ATAPI ready Sep 16 02:13:09 belle kernel: acd0: error issuing ATA PACKET command Sep 16 02:13:09 belle kernel: acd0: WARNING - READ_TOC freeing taskqueue zombie request Sep 16 02:13:09 belle kernel: acd0: timeout waiting for ATAPI ready Sep 16 02:13:09 belle kernel: acd0: error issuing ATA PACKET command ...last two repeating until reset... Result: Hard reset required Disk configuration: ad0: 114473MB <WDC WD1200JB-32EVA0 15.05R15> at ata0-master UDMA100 ad4: 114473MB <WDC WD1200JD-00GBB0 02.05D02> at ata2-master SATA150 ad6: 476940MB <Seagate ST3500641AS 3.AAJ> at ata3-master SATA150 I'm using one of those eSATA converter brackets in the back of the machine for ad6. I'm guessing this doesn't have to do with this problem since that disk wasn't mentioned. Any advice you can offer will be much appreciated. Thanks, -Clint -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
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