lkml.org 
[lkml]   [2001]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subjectramdisk size bug in 2.4.17-pre2
Hi,

It looks like the ramdisk driver in 2.4.17-pre2 doesn't honor the
rd_size parameter:

root@arthur:/tmp #uname -a
Linux arthur 2.4.17-pre2 #1 Sat Dec 1 00:47:24 CET 2001 i686 unknown
root@arthur:/tmp #cat /proc/sys/kernel/tainted
0
root@arthur:/tmp #modinfo rd
filename: /lib/modules/2.4.17-pre2/kernel/drivers/block/rd.o
description: <none>
author: <none>
license: "GPL"
parm: rd_size int, description "Size of each RAM disk in kbytes."
parm: rd_blocksize int, description "Blocksize of each RAM disk in bytes."
root@arthur:/tmp #modprobe rd rd_size=8192
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize

So I would expect that each ramdisk is 8192kB. But:

root@arthur:/tmp #dd if=/dev/zero of=/dev/ram1 bs=1k count=16384
16384+0 records in
16384+0 records out

IOW: writing 16MB to a 8MB ramdisk happily succeeds.

The last time I tried this was with 2.4.10-ac10, which didn't have this
bug.


Erik
[who will investigate further but is currently -ENOTIME]

--
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Faculty
of Information Technology and Systems, Delft University of Technology,
PO BOX 5031, 2600 GA Delft, The Netherlands Phone: +31-15-2783635
Fax: +31-15-2781843 Email: J.A.K.Mouw@its.tudelft.nl
WWW: http://www-ict.its.tudelft.nl/~erik/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:13    [W:0.033 / U:1.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site