The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
Could some of you check your CDROM optimizations with hdparm ? I am wondering if FC3 kernels are optimizing them properly. It might be a udev thing. See/reply to the "k3b: poor CDROM performance... " thread.
Sorry for intruding on your thread.
On Thu, 2004-11-04 at 10:24 -0500, Terry Polzin wrote:
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
I've not used hdparm - what am I looking for? This is the output of just running the command on my /dev/hdc device:
[root@nbc-linux ~]# hdparm /dev/hdc
/dev/hdc: HDIO_GET_MULTCOUNT failed: Invalid argument IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) HDIO_GETGEO failed: Invalid argument
If there is something specific I should look for, please let me know - Feel free to email me directly (nbc@cisco.com) and save bandwidth on this list...
nbc
On Thu, 2004-11-04 at 08:59 -0700, Kim Lux wrote:
Could some of you check your CDROM optimizations with hdparm ? I am wondering if FC3 kernels are optimizing them properly. It might be a udev thing. See/reply to the "k3b: poor CDROM performance... " thread.
Sorry for intruding on your thread.
On Thu, 2004-11-04 at 10:24 -0500, Terry Polzin wrote:
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
-- Kim Lux (Mr.) Diesel Research Inc
That is exactly what I was looking for. Your drive isn't optimized. unmaskirq should be enabled and it should use 32 bit support, not 16.
Thanks for replying.
On Thu, 2004-11-04 at 11:09 -0500, Neil B. Cohen wrote:
I've not used hdparm - what am I looking for? This is the output of just running the command on my /dev/hdc device:
[root@nbc-linux ~]# hdparm /dev/hdc
/dev/hdc: HDIO_GET_MULTCOUNT failed: Invalid argument IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) HDIO_GETGEO failed: Invalid argument
If there is something specific I should look for, please let me know - Feel free to email me directly (nbc@cisco.com) and save bandwidth on this list...
nbc
On Thu, 2004-11-04 at 08:59 -0700, Kim Lux wrote:
Could some of you check your CDROM optimizations with hdparm ? I am wondering if FC3 kernels are optimizing them properly. It might be a udev thing. See/reply to the "k3b: poor CDROM performance... " thread.
Sorry for intruding on your thread.
On Thu, 2004-11-04 at 10:24 -0500, Terry Polzin wrote:
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
-- Kim Lux (Mr.) Diesel Research Inc
On Thu, Nov 04, 2004 at 09:11:53AM -0700, Kim Lux wrote:
That is exactly what I was looking for. Your drive isn't optimized. unmaskirq should be enabled and it should use 32 bit support, not 16.
These are irrelevant for DMA mode, and DMA is on. It looks properly tuned to me as far as this shows
Here is an hdparm from an FC2 machine:
hdparm /dev/cdrom
/dev/cdrom: HDIO_GET_MULTCOUNT failed: Invalid argument IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) HDIO_GETGEO failed: Invalid argument
Is it optimized incorrectly ? It has dma and an unmaskedirq and 32 bit I/O.
?????????????
On Thu, 2004-11-04 at 11:39 -0500, Alan Cox wrote:
On Thu, Nov 04, 2004 at 09:11:53AM -0700, Kim Lux wrote:
That is exactly what I was looking for. Your drive isn't optimized. unmaskirq should be enabled and it should use 32 bit support, not 16.
These are irrelevant for DMA mode, and DMA is on. It looks properly tuned to me as far as this shows
On Thursday 04 November 2004 11:47, Kim Lux wrote:
Here is an hdparm from an FC2 machine:
hdparm /dev/cdrom
/dev/cdrom: HDIO_GET_MULTCOUNT failed: Invalid argument IO_support = 1 (32-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) HDIO_GETGEO failed: Invalid argument
Is it optimized incorrectly ? It has dma and an unmaskedirq and 32 bit I/O.
Looks good from here, matching what I have, and I can burn ok.
?????????????
On Thu, 2004-11-04 at 11:39 -0500, Alan Cox wrote:
On Thu, Nov 04, 2004 at 09:11:53AM -0700, Kim Lux wrote:
That is exactly what I was looking for. Your drive isn't optimized. unmaskirq should be enabled and it should use 32 bit support, not 16.
These are irrelevant for DMA mode, and DMA is on. It looks properly tuned to me as far as this shows
-- Kim Lux (Mr.) Diesel Research Inc
Terry Polzin wrote:
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
Known problem: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138048
update this: http://people.redhat.com/harald/udev-039-10.FC3.1.i386.rpm
On Thursday 04 November 2004 11:08, Harald Hoyer wrote:
Terry Polzin wrote:
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
Known problem: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138048
update this: http://people.redhat.com/harald/udev-039-10.FC3.1.i386.rpm
Still not resolved, I don't need to make any changes to /etc/udev/permissions.d/ files do I ?
I can mount a mortal user but not access, df, ls, cd all fail as mortal user.
Le jeudi 04 novembre 2004 à 12:01 -0500, Terry Polzin a écrit :
On Thursday 04 November 2004 11:08, Harald Hoyer wrote:
Terry Polzin wrote:
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
Known problem: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138048
update this: http://people.redhat.com/harald/udev-039-10.FC3.1.i386.rpm
Still not resolved,
You should reboot to confirm the bug.
I don't need to make any changes to /etc/udev/permissions.d/ files do I ?
I can mount a mortal user but not access, df, ls, cd all fail as mortal user.
On Thursday 04 November 2004 12:12, Féliciano Matias wrote:
Le jeudi 04 novembre 2004 à 12:01 -0500, Terry Polzin a écrit :
On Thursday 04 November 2004 11:08, Harald Hoyer wrote:
Terry Polzin wrote:
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
Known problem: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138048
update this: http://people.redhat.com/harald/udev-039-10.FC3.1.i386.rpm
Still not resolved,
You should reboot to confirm the bug.
I did.
Le jeudi 04 novembre 2004 à 10:24 -0500, Terry Polzin a écrit :
The latest udev update seems to allow only root access to /media/usbdisk. Although a mortal user can mount the device. Even an ls -l to the mounted dev fails for the mortal user.
Have you try the latest udev ? : http://people.redhat.com/harald/udev-039-10.FC3.1.i386.rpm http://people.redhat.com/harald/udev-039-10.FC3.1.src.rpm
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Alan Cox -
Féliciano Matias -
Gene Heskett -
Harald Hoyer -
Kim Lux -
Neil B. Cohen -
Terry Polzin