Hello, list, I've tried to figure out why my external DVDRW Device has a
problem using UDF, SCSI subsystem reports "Device not ready" when burning
with growisofs, the media is being written perfect, no defective media or
sector errors ater burning. I've tried diferent DVDRW and I discover that
only pioneer has this issue DVR106D /107D/108D/109D/110D (I have a lot of
them) but only trow usb-storage or sbp2 device converters I have this error,
and with this error UDF system show bad sectors, there is not bad sectors,
and it happens only when writing big files about more than 1 or 2MB, not
100Kbyte files or many small files, Then is cause I guess the drive need some
time to get ready again and I guess scsi system can resend the
command?!?!?!?.
Then going more far away, I see there is a black list on SCSI system,
scsi_devinfo.c that has a list of vendor and product identifications.
I've tried to add this line:
{"PIONEER", "DVD-RW DVR-106D", NULL, BLIST_RETRY_HWERROR},
With no effects, Cause this error looks like not hardware error, is just not
ready.
Then I have an Idea, what happen if on scsi_lib.c where resides the faulty
code:
if (!(req->flags & REQ_QUIET))
dev_printk(KERN_INFO,
&cmd->device->sdev_gendev,
"Device not ready.\n");
scsi_end_request(cmd, 0, this_count, 1);
return;
I change scsi_end_request(cmd, 0, this_count, 1);
by a comparison about vendor ID and Model
and then if is a buggy one executes scsi_requeue_command(q, cmd); instead of
scsi_end_request(cmd, 0, this_count, 1);
Can I use this vars to deal only the same situation and not sata, nor usb-card
reader, etc. etc.?!?!?!??!?!?!?!?
&cmd->device->vendor
&cmd->device->model
&cmd->pid
&cmd->sc_magic
How can I print it with prontk, I should use ?!?!?!
printk("Vendor: %s Model: %s Pid: %s Magic %s DevNotReady_Error\n",
&cmd->device->vendor,
&cmd->device->model,
&cmd->pid,
&cmd->sc_magic);
This device seems to require more patient to get ready...
this is my log USB-STORAGE generic adapter
Apr 3 18:13:30 g kernel: usb 4-1: new full speed USB device using ehci_hcd
and address 2
Apr 3 18:13:30 g kernel: scsi2 : SCSI emulation for USB Mass Storage devices
Apr 3 18:13:35 g kernel: Vendor: PIONEER Model: DVD-RW DVR-106D Rev:
1.08
Apr 3 18:13:35 g kernel: Type: CD-ROM ANSI
SCSI revision: 00
Apr 3 18:13:35 g kernel: sr0: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2
cdda tray
Apr 3 18:13:35 g scsi.agent[14695]: cdrom
at /devices/pci0000:00/0000:00:10.3/usb4/4-1/4-1:1.0/host2/target2:0:0/2:0:0:0
Apr 3 18:13:53 g kernel: cdrom: This disc doesn't have any tracks I
recognize!
Apr 3 18:14:42 g kernel: sr 2:0:0:0: Device not ready.
Apr 3 18:15:13 g last message repeated 21 times
Apr 3 18:16:14 g last message repeated 31 times
Apr 3 18:17:16 g last message repeated 31 times
Apr 3 18:18:17 g last message repeated 31 times
Apr 3 18:19:19 g last message repeated 31 times
Apr 3 18:20:20 g last message repeated 30 times
Apr 3 18:21:21 g last message repeated 28 times
Apr 3 18:22:22 g last message repeated 30 times
Apr 3 18:23:24 g last message repeated 31 times
diferent USB-STORAGE+ieee1394:
Apr 7 23:28:54 g kernel: sbp2: $Rev: 1306 $ Ben Collins <bcollins@xxxxxxxxxx>
Apr 7 23:28:54 g kernel: scsi2 : SCSI emulation for IEEE-1394 SBP-2 Devices
Apr 7 23:28:55 g kernel: ieee1394: sbp2: Logged into SBP-2 device
Apr 7 23:28:55 g kernel: Vendor: PIONEER Model: DVD-RW DVR-110D Rev:
1.37
Apr 7 23:28:55 g kernel: Type: CD-ROM ANSI
SCSI revision: 00
Apr 7 23:28:55 g kernel: sr1: scsi3-mmc drive: 1x/351x xa/form2 tray
Apr 7 23:28:55 g scsi.agent[9237]: cdrom
at /devices/pci0000:00/0000:00:14.0/fw-host0/0050c50250004101/0050c50250004101-0/h
Apr 7 23:28:56 g fstab-sync[9271]: added mount point /media/cdrom
for /dev/sr1
Apr 7 23:28:56 g kernel: cdrom: This disc doesn't have any tracks I
recognize!
Apr 7 23:32:11 g kernel: sr 2:0:0:0: Device not ready.
Apr 7 23:32:42 g last message repeated 290 times
Apr 7 23:33:45 g last message repeated 182 times
Apr 7 23:34:46 g last message repeated 92 times
Apr 7 23:35:47 g last message repeated 87 times
Apr 7 23:36:48 g last message repeated 103 times
Apr 7 23:37:50 g last message repeated 128 times
Apr 7 23:38:51 g last message repeated 140 times
Apr 7 23:39:52 g last message repeated 157 times
Apr 7 23:40:06 g last message repeated 65 times
SBP2 with another DVDR107
Oct 11 10:53:52 g kernel: sbp2: $Rev: 1219 $ Ben Collins <bcollins@xxxxxxxxxx>
Oct 11 10:53:52 g kernel: scsi0 : SCSI emulation for IEEE-1394 SBP-2 Devices
Oct 11 10:53:52 g net.agent[8231]: add event not handled
Oct 11 10:53:53 g kernel: ieee1394: sbp2: Logged into SBP-2 device
Oct 11 10:53:53 g kernel: Vendor: PIONEER Model: DVD-RW DVR-107D Rev:
1.21
Oct 11 10:53:53 g kernel: Type: CD-ROM ANSI
SCSI revision: 02
Oct 11 10:53:53 g kernel: sr0: scsi3-mmc drive: 62x/62x writer cd/rw xa/form2
cdda tray
Oct 11 10:53:53 g scsi.agent[8285]: cdrom
at /devices/pci0000:00/0000:00:14.0/fw-host0/0050c50250004101/0050c50250004101-0/h
Oct 11 10:56:21 g kernel: XFS mounting filesystem hda6
Oct 11 11:00:09 g kernel: Device sr0 not ready.
Oct 11 11:00:40 g last message repeated 145 times
Oct 11 11:01:41 g last message repeated 178 times
Oct 11 11:02:40 g last message repeated 174 times
any thougts?
--
Gustavo Guillermo Pérez
Compunauta uLinux
www.compunauta.com
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