Libata in 2.6.18-rc4-mm1 doesn't recognize DVD-ROM drive

Libata in 2.6.18-rc4-mm1 doesn't recognize DVD-ROM drive

[Vlad Codrea]

Hi,
 
Libata in 2.6.18-rc4-mm1 doesn't recognize my DVD-ROM drive, which is an 
ATAPI TORiSAN DVD-ROM DRD-N216. It's interesting that dmesg initially 
says "ata2: PATA max UDMA/33ata2: PATA max UDMA/33" even though the 
drive is only capable of Multiword DMA Mode 2 and PIO Mode 4 according 
to its specs ( 
http://support.dell.com/support/edocs/storage/tormargi/Specs.htm ).
 
Nevertheless, libata seems to find the correct mode later on: "ata2.00: 
ATAPI, max MWDMA2, CDB intr".
 
I've included the libata-related dmesg lines below. The full dmesg can 
be found at
 
http://bugzilla.kernel.org/attachment.cgi?id=8806
 
I'd be happy to provide any other information that may be helpful in 
debugging the problem.
 
Thank you,
-Vlad  


SCSI subsystem initialized
libata version 2.00 loaded.
ata_piix 0000:00:07.1: version 2.00ac6
ata1: PATA max UDMA/33 cmd 0x1F0 ctl 0x3F6 bmdma 0xFCF0 irq 14
ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0xFCF8 irq 15
scsi0 : ata_piix
ata1.00: ATA-4, max UDMA/33, 12685680 sectors: LBA
ata1.00: ata1: dev 0 multi count 16
ata1.00: configured for UDMA/33
scsi1 : ata_piix
ata2.00: ATAPI, max MWDMA2, CDB intr
ata2.00: configured for MWDMA2
scsi 0:0:0:0: Direct access     ATA      IBM-DADA-26480   AD6O PQ: 0 ANSI: 5
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata2.00: (BMDMA stat 0x4)
ata2.00: tag 0 cmd 0xa0 Emask 0x2 stat 0x58 err 0x0 (HSM violation)
ata2: soft resetting port
ata2: port is slow to respond, please be patient
ata2: port failed to respond (30 secs)
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ata2.00: qc timeout (cmd 0xa1)
ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata2.00: revalidation failed (errno=-5)
ata2: failed to recover some devices, retrying in 5 secs
ata2: port is slow to respond, please be patient
ata2: port failed to respond (30 secs)
ata2: soft resetting port
ata2: port is slow to respond, please be patient
ata2: port failed to respond (30 secs)
SCSI device sda: 12685680 512-byte hdwr sectors (6495 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 12685680 512-byte hdwr sectors (6495 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3
sd 0:0:0:0: Attached scsi disk sda
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ata2.00: qc timeout (cmd 0xa1)
ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata2.00: revalidation failed (errno=-5)
ata2: failed to recover some devices, retrying in 5 secs
ata2: port is slow to respond, please be patient
ata2: port failed to respond (30 secs)
ata2: soft resetting port
ata2: port is slow to respond, please be patient
ata2: port failed to respond (30 secs)
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ATA: abnormal status 0xD8 on port 0x177
ata2.00: qc timeout (cmd 0xa1)
ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata2.00: revalidation failed (errno=-5)
ata2.00: disabled
ata2: EH complete

Re: Libata in 2.6.18-rc4-mm1 doesn't recognize DVD-ROM drive

[Vlad Codrea]

Vlad Codrea wrote:
>
> Libata in 2.6.18-rc4-mm1 doesn't recognize my DVD-ROM drive, which is 
> an ATAPI TORiSAN DVD-ROM DRD-N216.

If I add "TORiSAN DVD-ROM DRD-N216" to ata_dma_blacklist[] on line 2990 
of drivers/ata/libata-core.c, I am able to mount CDs. However, md5sum 
fails for some files on the CD, and eventually the drive freezes with 
the following message. The CD is definitely good since md5sum works on 
my other computer. If having ssh access to the affected computer would 
help someone solve this error, I'd be happy to arrange that.

kernel: ata2.00: 61440 bytes trailing data
kernel: ata2: soft resetting port
kernel: ata2: port is slow to respond, please be patient
kernel: ATA: abnormal status 0xD8 on port 0x177
last message repeated 3 times
kernel: ata2.00: qc timeout (cmd 0xa1)
kernel: ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
kernel: ata2: failed to recover some devices, retrying in 5 secs
kernel: ata2: port is slow to respond, please be patient
kernel: ata2: soft resetting port
kernel: ata2: port is slow to respond, please be patient
kernel: ATA: abnormal status 0xD8 on port 0x177
last message repeated 3 times
kernel: ata2.00: qc timeout (cmd 0xa1)
kernel: ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
kernel: ata2: failed to recover some devices, retrying in 5 secs
kernel: ata2: port is slow to respond, please be patient
kernel: ata2: soft resetting port
kernel: ata2: port is slow to respond, please be patient
kernel: ATA: abnormal status 0xD8 on port 0x177
last message repeated 3 times
kernel: ata2.00: qc timeout (cmd 0xa1)
kernel: ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
kernel: ata2.00: disabled
kernel: ata2: EH complete
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1391424
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1391560
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1391816
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1392072
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1392328
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1392584
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1392840
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1391424
kernel: Reducing readahead size to 256K
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1395092
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1395092
kernel: Reducing readahead size to 256K
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1396096
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1396096
kernel: Reducing readahead size to 256K
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 260
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 264
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 272
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 280
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 288
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 312
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 320
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 328
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 336
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 344
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1040
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1040
kernel: Reducing readahead size to 256K
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 348
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 516
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1044
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1044
kernel: Reducing readahead size to 256K
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 564
kernel: ISOFS: unable to read i-node block
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1488
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 1488
kernel: Reducing readahead size to 256K
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 2204
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 2204
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 2280
kernel: sr 1:0:0:0: SCSI error: return code = 0x00040000
kernel: end_request: I/O error, dev sr0, sector 2280