[ERROR]: 2.5.48 SCSI Host - No Error Handling (ide-scsi)?

[ERROR]: 2.5.48 SCSI Host - No Error Handling (ide-scsi)?

[Shawn Starr]

Machine:

A7M266-D Athlon MP 2000+ 512MB DDR Registered:

lspci:

0:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller (rev 11)
00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] AGP Bridge
00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 04)
00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE (rev 04)
00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 03)
00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev 04)
.. cut for only important info ...

hdc: YAMAHA CRW2100E, ATAPI CD/DVD-ROM drive
DEV: registering device: ID = 'ide1', name = IDE Controller
kobject ide1: registering
  parent is 00:07.1
hdd: DVD-ROM DDU1621, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
DEV: registering device: ID = '1.0', name = IDE Drive
kobject 1.0: registering
  parent is ide1
bus ide: add device 1.0
DEV: registering device: ID = '1.1', name = IDE Drive
kobject 1.1: registering
  parent is ide1
bus ide: add device 1.1
driver pci:AMD IDE: registering
kobject AMD IDE: registering
bus pci: add driver AMD IDE
bound device '00:07.1' to driver 'AMD IDE'
driver pci:PCI IDE: registering
kobject PCI IDE: registering
bus pci: add driver PCI IDE

end_request: I/O error, dev hdc, sector 0
hdc: ATAPI 40X CD-ROM CD-R/RW drive, 8192kB Cache, UDMA(25)
Uniform CD-ROM driver Revision: 3.12
end_request: I/O error, dev hdc, sector 0
end_request: I/O error, dev hdd, sector 0
hdd: ATAPI 40X DVD-ROM drive, 512kB Cache, UDMA(33)
end_request: I/O error, dev hdd, sector 0
SCSI subsystem driver Revision: 1.00
ERROR: SCSI host `ide-scsi' has no error handling
ERROR: This is not a safe way to run your SCSI host
ERROR: The error handling must be added to this driver
Call Trace: [<c02480d3>]  [<c01fa375>]  [<c024f702>]  [<c0248113>]  
[<c010507a>]  [<c0105040>]  [<c0107129>]
scsi0 : SCSI host adapter emulation for IDE ATAPI devices

>From syslog (symbol information provided):
Call Trace: [scsi_register+739/752]  [put_driver+37/144]  [idescsi_detect+34/128]  
[scsi_register_host+51/208]  [init+58/352]  [init+0/352]  [kernel_thread_helper+5/12]


I'm using IDE-SCSI emulation for the CRW2100E. I assume this is normal behaviour if the ide-scsi driver 
has no error handling ;-)

>From Linus Changelog 2.5.48:

James Bottomley <jejb@mulgrave.(none)>:
  o add request prep functions to SCSI
  o warn (and don't attach) if no error handling

Shawn.

Re: [ERROR]: 2.5.48 SCSI Host - No Error Handling (ide-scsi)?

[Alan Cox]

On Tue, 2002-11-19 at 04:55, Shawn Starr wrote:
> I'm using IDE-SCSI emulation for the CRW2100E. I assume this is normal behaviour if the ide-scsi driver 
> has no error handling ;-)

Its on the list to look into more deeply. Its very unclear how to handle
the ide-scsi cases (the old code basically took an approach of 'wait
longer'). Because the bus itself is shared we have to ensure that
ide-scsi never lets a command get into the state the scsi layer thinks
it has been issued before it actually goes out on the wire (or
alternatively ensure we never reset due to timeouts from the command
which isnt currently on the bus). 

Its on the IDE job list but not that critical. 2.4 crosses its fingers
and prays, 2.5 now spots such devices and bitches about them 8)