qnx4 cd-rom not working

QNX Newsgroups (Archives) qnx.qnx4
1

Hi ng,

installed a cd-rom to our qnx 4.25 system, as master on ide 2nd channel.
See it in /dev, Iso9660fsys ist started.
But when I try to look an a cd I receive: “Can’t get free buffers for
deblocking” four times.

What goes wrong?

TIA

Friedhelm Schuetz
H.Kleinknecht & Co. GmbH

2

<Friedhelm.Schuetz@null.de> wrote:

installed a cd-rom to our qnx 4.25 system, as master on ide 2nd channel.
See it in /dev, Iso9660fsys ist started.
But when I try to look an a cd I receive: “Can’t get free buffers for
deblocking” four times.
What goes wrong?

You must already have another CD-ROM or MO drive on the system. Since
Fsys deals only in 512-byte blocks the drivers have to de-block things
like CD-ROM (from 2k) and the default is only enough buffers for a
single such device. Increase the number of buffers to the Fsys driver,
for example: “Fsys.eide fsys -B 16” (if necessary rebuild .boot image).

3

Hi John,

added as you proposed -B16 and it works fine.
You’re right, there is also a mo in the system.

Tanks
Friedhelm

“John Garvey” <jgarvey@qnx.com> schrieb im Newsbeitrag
news:c07ki2$moo$1@inn.qnx.com…

Friedhelm.Schuetz@null.de> > wrote:
installed a cd-rom to our qnx 4.25 system, as master on ide 2nd channel.
See it in /dev, Iso9660fsys ist started.
But when I try to look an a cd I receive: “Can’t get free buffers for
deblocking” four times.
What goes wrong?

You must already have another CD-ROM or MO drive on the system. Since
Fsys deals only in 512-byte blocks the drivers have to de-block things
like CD-ROM (from 2k) and the default is only enough buffers for a
single such device. Increase the number of buffers to the Fsys driver,
for example: “Fsys.eide fsys -B 16” (if necessary rebuild .boot image).