2001-02-14 22:47:15

by Rainer Mager

[permalink] [raw]
Subject: /proc/stat missing disk_io info

Hi all,

I was wondering why some of my disks don't show up in /proc/stat's disk_io
line. Specifically, my line says:

disk_io: (2,0):(144,144,288,0,0) (3,0):(35,35,140,0,0)

This equates to my floppy and first cdrom. I also have a second cdrom (RW)
and 2 hard disks. Looking at the code (kstat_read_proc in
fs/proc/proc_misc.c) it is looping only up to DK_MAX_MAJOR which is defined
as 16 in kernel_stat.h. The problem is that my 2 HDs have a major number of
22.

I don't know enough to produce a patch, that is, what should DK_MAX_MAJOR be
set to, but I believe the above is the problem.



Thanks,

--Rainer


2001-02-19 02:42:11

by Rainer Mager

[permalink] [raw]
Subject: RE: /proc/stat missing disk_io info

Not to be pushy or anything but since I received zero responses to this I
was wondering what else I can do. I'd be happy to patch the problem myself
but I have no idea what the correct value for DK_MAX_MAJOR should be.

Anywho, if anyone has any thoughts I'd appreciate them.

--Rainer


> -----Original Message-----
> I was wondering why some of my disks don't show up in
> /proc/stat's disk_io
> line. Specifically, my line says:
>
> disk_io: (2,0):(144,144,288,0,0) (3,0):(35,35,140,0,0)
>
> This equates to my floppy and first cdrom. I also have a second cdrom (RW)
> and 2 hard disks. Looking at the code (kstat_read_proc in
> fs/proc/proc_misc.c) it is looping only up to DK_MAX_MAJOR which
> is defined
> as 16 in kernel_stat.h. The problem is that my 2 HDs have a major
> number of
> 22.
>
> I don't know enough to produce a patch, that is, what should
> DK_MAX_MAJOR be
> set to, but I believe the above is the problem.