Various problems

QNX Newsgroups (Archives) qdn.public.qnx4
1

I have experienced various problems with a installation of QNX 4.25 on a new
machine. The problems are:

  1. Often, the first time vedit is invoked there is a long delay of up to 20
    seconds or so before the screen finishes being set up. Subsequent uses of
    vedit do not have the same problem - the screen starts up immediately.

  2. I have an optical disk connected via a SCSI interface. The first time I
    mount the disk, all is well. If I umount, replace the media and try and
    mount -p again, often (not always) I get an error message indicating that
    there is insufficient memory available.

  3. Whilst copying files to the optical disk, if I log on to another screen
    then sometimes I get the message that there are too many files open on the
    system. However, a check with sin fds does not indicate an unusually large
    number of open files.

On an identical machine without an optical disk, I still experience the
vedit problem.

Any comments, suggestions, etc would be gratefully received.

Regards

Mike Warrington

2

Is vedit accessing a file over the network? I regularly see delays
on some machines that I have not been able to explain (not much
help, but maybe some comfort).

Do you have any special startup entries in ./vedit/.veditrc?
Our experience is with console mode, not Photon.

“Dr. E.M. Warrington” wrote:

I have experienced various problems with a installation of QNX 4.25 on a new
machine. The problems are:

  1. Often, the first time vedit is invoked there is a long delay of up to 20
    seconds or so before the screen finishes being set up. Subsequent uses of
    vedit do not have the same problem - the screen starts up immediately.

  2. I have an optical disk connected via a SCSI interface. The first time I
    mount the disk, all is well. If I umount, replace the media and try and
    mount -p again, often (not always) I get an error message indicating that
    there is insufficient memory available.

  3. Whilst copying files to the optical disk, if I log on to another screen
    then sometimes I get the message that there are too many files open on the
    system. However, a check with sin fds does not indicate an unusually large
    number of open files.

On an identical machine without an optical disk, I still experience the
vedit problem.

Any comments, suggestions, etc would be gratefully received.

Regards

Mike Warrington

3

The vedit is a simple as it gets - a short (even a one line) file on the
machine itself in console mode. No special start-up entries either.


From: “Richard R. Kramer” <> rrkramer@kramer-smilko.com
Organization: QNX Developers Network (inn.qnx.com)
Newsgroups: qdn.public.qnx4
Date: Wed, 12 Sep 2001 19:46:58 -0400
Subject: Re: Various problems

Is vedit accessing a file over the network? I regularly see delays
on some machines that I have not been able to explain (not much
help, but maybe some comfort).

Do you have any special startup entries in ./vedit/.veditrc?
Our experience is with console mode, not Photon.

“Dr. E.M. Warrington” wrote:

I have experienced various problems with a installation of QNX 4.25 on a new
machine. The problems are:

  1. Often, the first time vedit is invoked there is a long delay of up to 20
    seconds or so before the screen finishes being set up. Subsequent uses of
    vedit do not have the same problem - the screen starts up immediately.

  2. I have an optical disk connected via a SCSI interface. The first time I
    mount the disk, all is well. If I umount, replace the media and try and
    mount -p again, often (not always) I get an error message indicating that
    there is insufficient memory available.

  3. Whilst copying files to the optical disk, if I log on to another screen
    then sometimes I get the message that there are too many files open on the
    system. However, a check with sin fds does not indicate an unusually large
    number of open files.

On an identical machine without an optical disk, I still experience the
vedit problem.

Any comments, suggestions, etc would be gratefully received.

Regards

Mike Warrington

4

Dr. E.M. Warrington <emw@le.ac.uk> wrote:

I have experienced various problems with a installation of QNX 4.25 on a new
machine. The problems are:

  1. Often, the first time vedit is invoked there is a long delay of up to 20
    seconds or so before the screen finishes being set up. Subsequent uses of
    vedit do not have the same problem - the screen starts up immediately.

  2. I have an optical disk connected via a SCSI interface. The first time I
    mount the disk, all is well. If I umount, replace the media and try and
    mount -p again, often (not always) I get an error message indicating that
    there is insufficient memory available.

What are the optical disks? MO drives by chance? I have some here that I could
try and reproduce this on. What is your controller? Also what is the version
of your system? (‘cat /etc/version/qnx’)

Erick.


  1. Whilst copying files to the optical disk, if I log on to another screen
    then sometimes I get the message that there are too many files open on the
    system. However, a check with sin fds does not indicate an unusually large
    number of open files.

On an identical machine without an optical disk, I still experience the
vedit problem.

Any comments, suggestions, etc would be gratefully received.

Regards

Mike Warrington

5

From: Hardware Support Account <> hw@qnx.com
Organization: QNX Software Systems Ltd.
Newsgroups: qdn.public.qnx4
Date: 13 Sep 2001 13:47:03 GMT
Subject: Re: Various problems

Dr. E.M. Warrington <> emw@le.ac.uk> > wrote:
I have experienced various problems with a installation of QNX 4.25 on a new
machine. The problems are:

  1. Often, the first time vedit is invoked there is a long delay of up to 20
    seconds or so before the screen finishes being set up. Subsequent uses of
    vedit do not have the same problem - the screen starts up immediately.

  2. I have an optical disk connected via a SCSI interface. The first time I
    mount the disk, all is well. If I umount, replace the media and try and
    mount -p again, often (not always) I get an error message indicating that
    there is insufficient memory available.

What are the optical disks? MO drives by chance? I have some here that I
could
try and reproduce this on. What is your controller? Also what is the version
of your system? (‘cat /etc/version/qnx’)

Erick.

Thanks for posting a reply.

To answer your questions, the current version of the system is:

QNX Software Systems Ltd. QNX 4.25, release date 13-Nov-98
QNX Software Systems Ltd. QNX 4.25 Patch E, release date 31-Mar-2001

The disks are 4.2 Gbyte Pinnacle 5200 drives connected to an Adaptec
AHA-2940 Ultra SCSI card.

regards

Mike


  1. Whilst copying files to the optical disk, if I log on to another screen
    then sometimes I get the message that there are too many files open on the
    system. However, a check with sin fds does not indicate an unusually large
    number of open files.

On an identical machine without an optical disk, I still experience the
vedit problem.

Any comments, suggestions, etc would be gratefully received.

Regards

Mike Warrington

6

Could it be a disk problem? After the first go, then the file and some
directory entries will have been cached.

Is there some process running, perhaps by sysinit? (try sysmon to
watch this activity.)
Is it always the same file that experiences the delay?
Does dcheck step through its paces without pauses?

Richard

“Dr. E.M. Warrington” wrote:

The vedit is a simple as it gets - a short (even a one line) file on the
machine itself in console mode. No special start-up entries either.

From: “Richard R. Kramer” <> rrkramer@kramer-smilko.com
Organization: QNX Developers Network (inn.qnx.com)
Newsgroups: qdn.public.qnx4
Date: Wed, 12 Sep 2001 19:46:58 -0400
Subject: Re: Various problems

Is vedit accessing a file over the network? I regularly see delays
on some machines that I have not been able to explain (not much
help, but maybe some comfort).

Do you have any special startup entries in ./vedit/.veditrc?
Our experience is with console mode, not Photon.

“Dr. E.M. Warrington” wrote:

I have experienced various problems with a installation of QNX 4.25 on a new
machine. The problems are:

  1. Often, the first time vedit is invoked there is a long delay of up to 20
    seconds or so before the screen finishes being set up. Subsequent uses of
    vedit do not have the same problem - the screen starts up immediately.

  2. I have an optical disk connected via a SCSI interface. The first time I
    mount the disk, all is well. If I umount, replace the media and try and
    mount -p again, often (not always) I get an error message indicating that
    there is insufficient memory available.

  3. Whilst copying files to the optical disk, if I log on to another screen
    then sometimes I get the message that there are too many files open on the
    system. However, a check with sin fds does not indicate an unusually large
    number of open files.

On an identical machine without an optical disk, I still experience the
vedit problem.

Any comments, suggestions, etc would be gratefully received.

Regards

Mike Warrington