Tejun, Thanks for your prompt reply!! On 01/21/2011 03:44 PM, Tejun Heo wrote: > On Fri, Jan 21, 2011 at 03:39:56PM +0530, viresh kumar wrote: >> > I am implementing mwdma interface for arasan compact flash controller. >> > I am facing a strange problem, when i insert CF card on my board (after bootup), >> > in mwdma mode, i get following: >> > >> > ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xe frozen > That's AC_ERR_ATA_BUS. > >> > Can somebody give any clue on which part i should try to look at? > Yeah, someone is reporting CRC error. I will check this. But it seems unknown partition table is a different issue, as this error is also coming in PIO mode, where i am able to get sda1 node and able to read/write to card. print in PIO mode: # ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xe frozen ata1: soft resetting link ata1.00: CFA: TRANSCEND, 20091215, max UDMA/66 ata1.00: 62537328 sectors, multi 0: LBA ata1.00: configured for PIO6 ata1.00: configured for PIO6 ata1: EH complete scsi 0:0:0:0: Direct-Access ATA TRANSCEND 2009 PQ: 0 ANSI: 5 sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 0:0:0:0: [sda] 62537328 512-byte logical blocks: (32.0 GB/29.8 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sd 0:0:0:0: [sda] Attached SCSI disk -- viresh -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
