Re: mmap() on cdrom files fails in 2.6.9-rc2-mmX

[Andrew Morton]

Jean Delvare <khali@xxxxxxxxxxxx> wrote:
>
> I think I found a bug in 2.6.9-rc2-mm4. It doesn't seem to be able to
> mmap() files located on cdroms. Same problem with -mm3 and -mm1.
> 2.6.9-rc2 works fine. I reproduced it on two completely different
> systems, so I guess it isn't device dependant.
> 

So I tried your .config

> ...
> # CONFIG_BLK_DEV_IDECD is not set

hm.  You're not using an IDE CDROM?

> CONFIG_BLK_DEV_SR=m

but you are using a SCSI CDROM, correct?

I tried your test app on both IDE CD with my .config and on SCSI CD with
your .config.  Works fine.


vmm:/mnt/cdrom> ~/test-mmap REGSVR32.EXE 
mmap size=42 flags=1: OK
mmap size=42 flags=2: OK
mmap size=4096 flags=1: OK
mmap size=4096 flags=2: OK


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