启动机器的时候会看到这样一大段代码？请问是怎么回事？

wanglu624

hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=49380210, sector=49380174
ide: failed opcode was: unknown
end_request: I/O error, dev hda, sector 49380174
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=49380210, sector=49380182
ide: failed opcode was: unknown
end_request: I/O error, dev hda, sector 49380182
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=49380210, sector=49380190
ide: failed opcode was: unknown
end_request: I/O error, dev hda, sector 49380190
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=49380210, sector=49380198
ide: failed opcode was: unknown
end_request: I/O error, dev hda, sector 49380198
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=49380210, sector=49380206
ide: failed opcode was: unknown
end_request: I/O error, dev hda, sector 49380206
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=49380210, sector=49380206
ide: failed opcode was: unknown
end_request: I/O error, dev hda, sector 49380206
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=49380210, sector=49380206
ide: failed opcode was: unknown
end_request: I/O error, dev hda, sector 49380206

shyxie

看提示好像是DMA访问出错。。你现在能不能正常启动啊？
试一下关闭DMA看会不会还出现。。修改你/boot/grub/grub.conf文件的启动项，增加ide=nodma这一项，如下所示：
kernel /vmlinuz-<your version> ro root=/dev/<your part>  ide=nodma

不过可能这个硬盘也大限将至了。。所以建议尽快备份数据。

wanglu624

能正常启动。关闭DMA岂不是很慢？
最好硬盘快点完蛋，我好去找IBM要个新的！

shyxie

也不会很慢啦。。。不复制大文件的话应该不会感觉得出来的。

其实如果能正常使用不关闭也行。。。不去管它，眼不见为净就是了。。^_^