Messages in this thread |  | | Date | Wed, 03 Jan 2001 14:38:51 -0800 | From | Jordan Mendelson <> | Subject | 2.4.0-pre able to mount SHM twice |
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This is probably due to the source being 'none', but the shm mount point can be mounted twice at the same mount point.
Shouldn't mount(2) return -EBUSY in this case?
# cat /etc/mtab /dev/hda4 / ext2 rw,errors=remount-ro,errors=remount-ro 0 0 proc /proc proc rw 0 0 devpts /dev/pts devpts rw,gid=5,mode=620 0 0 /dev/hda1 /boot ext2 rw 0 0 /dev/hda3 /mnt/win vfat rw 0 0 none /proc/bus/usb usbdevfs rw 0 0
# mount /dev/shm # cat /etc/mtab /dev/hda4 / ext2 rw,errors=remount-ro,errors=remount-ro 0 0 proc /proc proc rw 0 0 devpts /dev/pts devpts rw,gid=5,mode=620 0 0 /dev/hda1 /boot ext2 rw 0 0 /dev/hda3 /mnt/win vfat rw 0 0 none /proc/bus/usb usbdevfs rw 0 0 none /dev/shm shm rw 0 0
# mount /dev/shm # cat /etc/mtab /dev/hda4 / ext2 rw,errors=remount-ro,errors=remount-ro 0 0 proc /proc proc rw 0 0 devpts /dev/pts devpts rw,gid=5,mode=620 0 0 /dev/hda1 /boot ext2 rw 0 0 /dev/hda3 /mnt/win vfat rw 0 0 none /proc/bus/usb usbdevfs rw 0 0 none /dev/shm shm rw 0 0 none /dev/shm shm rw 0 0
# umount /dev/shm # cat /etc/mtab /dev/hda4 / ext2 rw,errors=remount-ro,errors=remount-ro 0 0 proc /proc proc rw 0 0 devpts /dev/pts devpts rw,gid=5,mode=620 0 0 /dev/hda1 /boot ext2 rw 0 0 /dev/hda3 /mnt/win vfat rw 0 0 none /proc/bus/usb usbdevfs rw 0 0
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