Re: oops when using hdc=ide-scsi (2.5.66)

Re: oops when using hdc=ide-scsi (2.5.66)

[Alan Cox]

On Llu, 2003-04-07 at 20:02, Randy.Dunlap wrote:
> Hi,
> 
> I get this when I boot 2.5.66 and the Linux command line contains
> "hdc=ide-scsi".  Yes, I know that I can remove that option (as in
> "DDT"), but the kernel shouldn't do this, either.

ide_scsi is completely broken in 2.5.x. Known problem. If you need it
either use 2.4 or fix it 8)

oops when using hdc=ide-scsi (2.5.66)

[Randy.Dunlap]

Hi,

I get this when I boot 2.5.66 and the Linux command line contains
"hdc=ide-scsi".  Yes, I know that I can remove that option (as in
"DDT"), but the kernel shouldn't do this, either.

/dev/hdc is a CD-RW drive with no media in it.


Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH2: IDE controller at PCI slot 00:1f.1
ICH2: chipset revision 5
ICH2: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:DMA
hda: MAXTOR 6L040J2, ATA DISK drive
hdb: MAXTOR 6L040J2, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: CR-48X9TE, ATAPI CD/DVD-ROM drive
hdd: TOSHIBA DVD-ROM SD-M1612, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: host protected area => 1
hda: 78177792 sectors (40027 MB) w/1819KiB Cache, CHS=77557/16/63, UDMA(100)
 hda: hda1 hda2
hdb: host protected area => 1
hdb: 78177792 sectors (40027 MB) w/1819KiB Cache, CHS=77557/16/63, UDMA(100)
 hdb: hdb1 hdb2 hdb3 hdb4
end_request: I/O error, dev hdd, sector 0
hdd: ATAPI 48X DVD-ROM drive, 512kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
end_request: I/O error, dev hdd, sector 0
PCI: Found IRQ 9 for device 02:0c.0
PCI: Sharing IRQ 9 with 02:0b.1
PCI: Sharing IRQ 9 with 02:0e.0
PCI: Sharing IRQ 9 with 00:1f.3
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.28
        <Adaptec 2940 SCSI adapter>
        aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs

scsi1 : SCSI host adapter emulation for IDE ATAPI devices
ide-scsi: abort called for 8
hdc: irq timeout: status=0xd0 { Busy }
hdc: DMA disabled
hdc: ATAPI reset complete
hdc: irq timeout: status=0xc0 { Busy }
hdc: ATAPI reset complete
hdc: irq timeout: status=0xc0 { Busy }
drivers/scsi/ide-scsi.c:361: spin_lock(drivers/scsi/hosts.c:f7d900b8) already locked by drivers/scsi/scsi_error.c/724
drivers/scsi/scsi_error.c:726: spin_unlock(drivers/scsi/hosts.c:f7d900b8) not locked
hdc: status timeout: status=0xd0 { Busy }
ide-scsi: Strange, packet command initiated yet DRQ isn't asserted
hdc: ATAPI reset complete
ide-scsi: reset called for 8
------------[ cut here ]------------
kernel BUG at drivers/scsi/ide-scsi.c:492!
invalid operand: 0000 [#1]
CPU:    0
EIP:    0060:[<c02e5627>]    Not tainted
EFLAGS: 00010282
EIP is at idescsi_transfer_pc+0xa5/0x10e
eax: c029e8c2   ebx: c0510304   ecx: 033fb2c4   edx: 00000172
esi: f7d90164   edi: f7db2d30   ebp: f7d3bcd8   esp: f7d3bcb4
ds: 007b   es: 007b   ss: 0068
Process scsi_eh_1 (pid: 10, threadinfo=f7d3a000 task=c1b60cc0)
Stack: 00000172 c0510304 00000008 00000080 0000001e f7d90164 c0510304 00000000 
       f7d90c08 f7d3bd04 c029995d c0510304 f7db2d30 00000000 00000088 0000001e 
       0000000f f7d90c08 c0510304 c0510258 f7d3bd44 c0299bec c0510304 f7d90c08 
Call Trace:
 [<c029995d>] start_request+0xff/0x14e
 [<c0299bec>] ide_do_request+0x21c/0x488
 [<c029ab5a>] ide_do_drive_cmd+0x150/0x276
 [<c011eab6>] __call_console_drivers+0x56/0x58
 [<c02e5d4c>] idescsi_queue+0x68/0x7d4
 [<c02e5f48>] idescsi_queue+0x264/0x7d4
 [<c011fa37>] profile_hook+0x21/0x25
 [<c02b8847>] scsi_send_eh_cmnd+0x335/0x69a
 [<c02b8496>] scsi_eh_done+0x0/0x7c
 [<c02b8442>] scsi_eh_times_out+0x0/0x54
 [<c02b90cd>] scsi_eh_tur+0x8b/0xee
 [<c02b9552>] scsi_eh_bus_device_reset+0x13c/0x186
 [<c02ba2fe>] scsi_eh_ready_devs+0x28/0x74
 [<c02ba62f>] scsi_unjam_host+0x205/0x324
 [<c02ba8ca>] scsi_error_handler+0x17c/0x1d4
 [<c02ba74e>] scsi_error_handler+0x0/0x1d4
 [<c01071f5>] kernel_thread_helper+0x5/0xc

Code: 0f 0b ec 01 3e 8a 41 c0 8b 57 38 a1 a0 28 45 c0 89 d1 29 c1 
 hdc: ATAPI reset complete
hdc: status error: status=0x48 { DriveReady DataRequest }
hdc: drive not ready for command
hdc: status timeout: status=0xd0 { Busy }
hdc: drive not ready for command


--
~Randy

Re: oops when using hdc=ide-scsi (2.5.66)

[Bill Davidsen]

On 7 Apr 2003, Alan Cox wrote:

> On Llu, 2003-04-07 at 20:02, Randy.Dunlap wrote:
> > Hi,
> > 
> > I get this when I boot 2.5.66 and the Linux command line contains
> > "hdc=ide-scsi".  Yes, I know that I can remove that option (as in
> > "DDT"), but the kernel shouldn't do this, either.
> 
> ide_scsi is completely broken in 2.5.x. Known problem. If you need it
> either use 2.4 or fix it 8)

Is that an official position that it will not be supported? People with MO
drives and tape will be supported only on 2.4?

It would make more sense to treat all ATAPI devices as SCSI, I would
think, but I assume there's a good reason for this decision.

-- 
bill davidsen <davidsen@tmr.com>
  CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.

Re: oops when using hdc=ide-scsi (2.5.66)

[Stephan von Krawczynski]

On Tue, 15 Apr 2003 00:27:50 -0400 (EDT)
Bill Davidsen <davidsen@tmr.com> wrote:

> On 7 Apr 2003, Alan Cox wrote:
> 
> > On Llu, 2003-04-07 at 20:02, Randy.Dunlap wrote:
> > > Hi,
> > > 
> > > I get this when I boot 2.5.66 and the Linux command line contains
> > > "hdc=ide-scsi".  Yes, I know that I can remove that option (as in
> > > "DDT"), but the kernel shouldn't do this, either.
> > 
> > ide_scsi is completely broken in 2.5.x. Known problem. If you need it
> > either use 2.4 or fix it 8)
> 
> Is that an official position that it will not be supported? People with MO
> drives and tape will be supported only on 2.4?

Don't forget the merely not existing SCSI CD/DVD writers, just about all of
them are ATAPI. I guess a non-working ide-scsi module won't work out for any of
the distros...

-- 
Regards,
Stephan

Re: oops when using hdc=ide-scsi (2.5.66)

[Alan Cox]

On Maw, 2003-04-15 at 05:27, Bill Davidsen wrote:
> Is that an official position that it will not be supported? People with MO
> drives and tape will be supported only on 2.4?

I don't expect to have time to look at it until June or maybe July on my
current schedule, so its someone elses problem if they want it before then

Re: oops when using hdc=ide-scsi (2.5.66)

[Alan Cox]

On Maw, 2003-04-15 at 16:52, Randy.Dunlap wrote:
> | > Is that an official position that it will not be supported? People with MO
> | > drives and tape will be supported only on 2.4?
> 
> Alan, if someone is willing to spend some time on ide-scsi, can you
> give hints about where to start, what to do?

Sure. Basically someone rewrote all the abort and reset code. It just
needs rewriting again so it works. Right now we have old-scsi/new-ide for 2.4
and new-scsi/old-ide-somewhat borked for 2.5.

The core reset code is now believed debugged so it should be possible to
fix ide-scsi.

Re: oops when using hdc=ide-scsi (2.5.66)

[Alan Cox]

On Maw, 2003-04-15 at 16:52, Randy.Dunlap wrote:
> | > Is that an official position that it will not be supported? People with MO
> | > drives and tape will be supported only on 2.4?
> 
> Alan, if someone is willing to spend some time on ide-scsi, can you
> give hints about where to start, what to do?

Sure. Basically someone rewrote all the abort and reset code. It just
needs rewriting again so it works. Right now we have old-scsi/new-ide for 2.4
and new-scsi/old-ide-somewhat borked for 2.5.

The core reset code is now believed debugged so it should be possible to
fix ide-scsi.

Re: oops when using hdc=ide-scsi (2.5.66)

[Randy.Dunlap]

On Tue, 15 Apr 2003 09:03:57 +0200 Stephan von Krawczynski <skraw@ithnet.com> wrote:

| On Tue, 15 Apr 2003 00:27:50 -0400 (EDT)
| Bill Davidsen <davidsen@tmr.com> wrote:
| 
| > On 7 Apr 2003, Alan Cox wrote:
| > 
| > > On Llu, 2003-04-07 at 20:02, Randy.Dunlap wrote:
| > > > Hi,
| > > > 
| > > > I get this when I boot 2.5.66 and the Linux command line contains
| > > > "hdc=ide-scsi".  Yes, I know that I can remove that option (as in
| > > > "DDT"), but the kernel shouldn't do this, either.
| > > 
| > > ide_scsi is completely broken in 2.5.x. Known problem. If you need it
| > > either use 2.4 or fix it 8)
| > 
| > Is that an official position that it will not be supported? People with MO
| > drives and tape will be supported only on 2.4?

Alan, if someone is willing to spend some time on ide-scsi, can you
give hints about where to start, what to do?

Thanks,
--
~Randy