Messages in this thread | | | Date | Fri, 7 Dec 2001 16:07:02 +0100 | From | Erik Mouw <> | Subject | ramdisk size bug in 2.4.17-pre2 |
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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/
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