Started having ATA Hard Drive DMA timeout issues



  • I recently started experiancing ATA Hard Drive DMA timeout issues with the last couple 1.2.3 RC2 snapshots I installed in July.
    The wd diag. do not report any issues.

    7.2-RELEASE-p2 FreeBSD 7.2-RELEASE-p2 #0: Sun Jul 12 08:41:25 EDT 2009   
    sullrich@FreeBSD-7_2-RELENG_1_2-snapshots.pfsense.org:/usr/obj.pfSense/usr/pfSensesrc/src/sys/pfSense_SMP.7  i386

    atacontrol list

    ATA channel 0:
        Master:  ad0 <wdc wd800jb-00jjc0="" 05.01c05="">ATA/ATAPI revision 6

    atapci0: <sis 964="" udma133="" controller="">port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x3280-0x328f at device 2.5 on pci0
    ad0: 76319MB <wdc wd800jb-00jjc0="" 05.01c05="">at ata0-master UDMA100
    ad0: error issuing READ_DMA command
    ad0: error issuing WRITE_DMA command
    atapci0: <sis 964="" udma133="" controller="">port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x3280-0x328f at device 2.5 on pci0
    ad0: 76319MB <wdc wd800jb-00jjc0="" 05.01c05="">at ata0-master UDMA100
    atapci0: <sis 964="" udma133="" controller="">port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x3280-0x328f at device 2.5 on pci0
    ad0: 76319MB <wdc wd800jb-00jjc0="" 05.01c05="">at ata0-master UDMA100
    ad0: error issuing WRITE_DMA command
    ad0: error issuing WRITE_DMA command
    ad0: error issuing WRITE_DMA command
    ad0: error issuing READ_DMA command
    atapci0: <sis 964="" udma133="" controller="">port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x3280-0x328f at device 2.5 on pci0
    ad0: 76319MB <wdc wd800jb-00jjc0="" 05.01c05="">at ata0-master UDMA100

    Is this a freebsd issue?  If so can anyone reccomend a work arounds or what direction to pursue?  The system terminally locks
    up at random intervals.

    Thanks for your attention to this matter,

    GP</wdc></sis></wdc></sis></wdc></sis></wdc></sis></wdc>



  • This is the hardware beginning to fail.  There's a very good chance that your drive is going bad.  Lockups are almost always hardware related and the DMA timeouts are a good indication that the drive is going south.


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