swap is mounted twice

[Alex Muntada]

I followed the steps described in bug #66637 to get swap filesystem mounted back after upgrading from Dapper to Edgy and I came up having the swap partition mounted twice, from different, though actually the same, devices:

$ cat /proc/swaps
Filename Type Size Used Priority
/dev/.static/dev/hda4 partition 1004052 0 -1
/dev/evms/hda4 partition 1004052 0 -2
$ sudo fdisk -l | grep swap
/dev/hda4 7172 7296 1004062+ 82 Linux swap / Solaris

The fact is that the system works fine and I can even hibernate the laptop, though I guess it's a risky thing to have the partition mounted twice.

BTW, I'm running latest Edgy.

[Alex Muntada (alex.muntada)]

I'm attaching fstab before anyone ask me to do so... ;)

[Alex Muntada (alex.muntada)]

By the way, the «free» command reports also twice the swap available:
$ free
             total used free shared buffers cached
Mem: 1026460 343612 682848 0 11900 160412
-/+ buffers/cache: 171300 855160
Swap: 2008104 0 2008104

[Alex Muntada (alex.muntada)]

I just checked it out on a Mac Mini running Edgy too, and the situation there is even weirder; swap is also mounted twice but device names do not match (I guess it has something to do with partition layout being different on a Mac Mini):

$ cat /proc/swaps
Filename Type Size Used Priority
/dev/hda4 partition 1269520 1192 -1
/dev/mapper/hda3 partition 1269520 0 -2

$ sudo fdisk -l
/dev/hda
        # type name length base ( size ) system
/dev/hda1 Apple_partition_map Apple 63 @ 1 ( 31.5k) Partition map
/dev/hda2 Apple_Bootstrap bootstrap 31251 @ 64 ( 15.3M) NewWorld bootblock
/dev/hda3 Apple_HFS Apple_HFS_Untitled_1 14963440 @ 63176704 ( 7.1G) HFS
/dev/hda4 Apple_UNIX_SVR2 swap 2539063 @ 31315 ( 1.2G) Linux swap
/dev/hda5 Apple_UNIX_SVR2 ubuntu 29296875 @ 2570378 ( 14.0G) Linux native
/dev/hda6 Apple_UNIX_SVR2 dades 31309451 @ 31867253 ( 14.9G) Linux native
/dev/hda7 Apple_Free Extra 16 @ 78140144 ( 8.0k) Free space

Block size=512, Number of Blocks=78140160
DeviceType=0x0, DeviceId=0x0

I'm attaching the fstab, just in case.

[Don (dilidon)]

Just to confirm. Similar situation here.
swapon -sv gives me:
Filename Type Size Used Priority
/dev/hda6 partition 1028120 26676 -1
/dev/mapper/hda6 partition 1028120 0 -2
Resulted in creating a new resized swap via gparted.
Free also counts the swap size as double (the amount used is correct):
Swap: 2056240 26676 2029564

[Gabriel Patiño (gepatino)]

Thanks for your bug report.

This bug has been marked as duplicated to bug #68710