2.2.14 ATAPI CDROM crash on mount

[Andre Hedrick]

You should attempt my patch on top of 2.2.14.
It is the only thing that can correctly setup your host adapter.

On Tue, 25 Jan 2000, Khimenko Victor wrote:

> In <388CE045.1A7AE1B9 en gmx.de> Joachim Weller (joachim_weller en gmx.de) wrote:
> > Hi,
> 
> > I upgraded from 2.2.10 to 2.2.14 (2x686 SMP) and encountered a
> > tremendous ISDN performance increase ! Congratulations !
> > But, when mounting an ATAPI cdrom, the system crashes instantly without
> > leaving
> > any messages (/var/log/messages) or any error msg. on screen
> > (even when mounting manually with -v).
> > The first kernel I built, had ATAPI cdrom support compiled in,
> > but stopped booting after:
> > ----------------------------------
> > hdc: HITACHI CDR-8130, ATAPI CDROM drive
> > ide1 at 0x170-0x177,0x376 on irq 15
> > ----------------------------------
> 
> > Normally (kernel 2.2.10) continues with the lines:
> > ---------------------------------
> > hdc: ATAPI 16X CD-ROM drive, 128kB Cache
> > Uniform CDROM driver Revision 2.55
> > ---------------------------------
> 
> > I tried compiling ATAPI cdrom as moule and the kernel boots and runs
> > stable,
> > as long as I do not attempt to mount the cdrom.
> > I even could just modprobe the cdrom.o module and load it flawlessly.
> > But when issuing a mount of the cdrom, the system instantly freezes.
> > The doc of 2.2.14 and a comparision of cdrom.c (2.55) of kernel 2.2.10
> > with
> > cdrom (2.56) of 2.2.14 did not reveal any indication of changes with
> > potential risks,
> > and compiling the 2.2.10 version - as expected - did not cure the
> > problem.
> > Now I have no glue how to trace the problem further down, but I would
> > love to keep
> > the outstanding ISDN performance of 2.2.14.
> 
> Try to do 'hdparm -d 0 /dev/hdc' before mount attempt. Some CD-ROM's do work
> work 100% correctly with DMA. Though here (where I have such problem) it'll
> lock 2.2.10 as well.
> 
> > Help very much appreciated,
> 
> 
> 
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo en vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
> 

Andre Hedrick
The Linux ATA/IDE guy

THE USE OF EMAIL FOR THE TRANSMISSION OF UNSOLICITED COMMERCIAL
MATERIAL IS PROHIBITED UNDER FEDERAL LAW (47 USC 227). Violations may
result in civil penalties and claims of $500.00 PER OCCURRENCE
(47 USC 227[c]).  Commercial spam WILL be forwarded to postmasters.



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo en vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/