Messages in this thread |  | | Subject | loop Device doesn't work in kernel 2.4.14 | From | johann.pfefferl.jp@germany ... | Date | Mon, 12 Nov 2001 09:57:38 +0100 |
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Hello,
I have detected that the loop device mechanism can't be used any longer in kernel version 2.4.14. I have compiled the kernel with minimum features (ext2, initrd, ramdisk) compiled into the kernel. The rest is all modules.
# cat /proc/version Linux version 2.4.14 (root@pcls03) (gcc version 2.95.3 20010315 (SuSE)) #2 Wed Nov 7 11:34:01 CET 2001
# mount -o loop /tmp/DISK /mnt -v mount: Could not find any loop device, and, according to /proc/devices, this kernel does not know about the loop device. (If so, then recompile or `insmod loop.o'.)
# modprobe -v loop /sbin/insmod /lib/modules/2.4.14/kernel/drivers/block/loop.o Using /lib/modules/2.4.14/kernel/drivers/block/loop.o Symbol version prefix '' /lib/modules/2.4.14/kernel/drivers/block/loop.o: unresolved symbol deactivate_page /lib/modules/2.4.14/kernel/drivers/block/loop.o: insmod /lib/modules/2.4.14/kernel/drivers/block/loop.o failed /lib/modules/2.4.14/kernel/drivers/block/loop.o: insmod loop failed
# find /usr/src/linux-2.4.14 -type f -name '*.[ch]' |xargs grep deactivate_page /usr/src/linux-2.4.14/drivers/block/loop.c: deactivate_page(page); /usr/src/linux-2.4.14/drivers/block/loop.c: deactivate_page(page);
# depmod -ae depmod: *** Unresolved symbols in /lib/modules/2.4.14/kernel/drivers/block/loop.o depmod: deactivate_page depmod: *** Unresolved symbols in /lib/modules/2.4.14/kernel/drivers/net/wan/comx.o depmod: proc_get_inode depmod: *** Unresolved symbols in /lib/modules/2.4.14/kernel/drivers/telephony/ixj_pcmcia.o depmod: register_pccard_driver depmod: unregister_pccard_driver depmod: CardServices
There seems to be a problem with the routine deactivate_page, which is no longer present in the 2.4.14 kernel but is used somehow in the loop device code.
Hans -- Dr.-Ing. Johann Pfefferl mailto:johann.pfefferl.jp@germany.agfa.com Agfa-Gevaert AG Tel.: +49 89 6207-3524 GF Laborgeraete, Entwicklung Software (LG-ESW) Sek.: +49 89 6207-3362 Tegernseer Landstr. 161, D-81539 Muenchen Fax : +49 89 6207-7279 __ / / __ _ _ _ _ __ __ / /__ / / / \// //_// \ \/ / -o) /____/ /_/ /_/\/ /___/ /_/\_\ /\\ ...for IQs GREATER than 98... _\_v-
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