哪位兄弟做过硬盘驱动。帮忙看下：hda: possibly failed opcode: 0x35

antizerg2003

测试过硬件通道，利用循环读写其中一个寄存器看样子，硬件通道是好的。

setup_hw_regs:ide_3d_data:-1373896704
setup_hw_regs:ide_3d_ctrl:-1373880320
hda: ST3320418AS, ATA DISK drive
hda: MWDMA2 mode selected
ide0 at 0xae1c0000-0xae1c000e,0xae1c400c on irq 8 (serialized)
ide-gd driver 1.18
hda: max request size: 512KiB
-sh-3.2# hda: 625142448 sectors (320072 MB) w/16384KiB Cache, CHS=38913/255/63
hda: cache flushes supported
hda: hda1 hda2 hda3
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
kjournald starting.  Commit interval 5 seconds
hda: dma_intr: status=0x00 { }
hda: possibly failed opcode: 0x35
hda: DMA disabled
ide0: reset: success
EXT3 FS on hda2, internal journal
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with writeback data mode.

我把DMA关掉，也会出现hda: possibly failed opcode：%39什么的错误，很容易破坏文件系统。
[em13]