https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281000
Bug ID: 281000
Summary: camsim: creating and destroying CTL LUNs does not
notify the camsim frontend
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Creating and destroying CTL LUNs does not notify the camsim frontend. Whether
I create a LUN or destroy it, the camsim frontend does not report any change
until a reprobe (for Mediasize changes) or rescan (for device creation or
destruction). Shouldn't this be automatic?
Steps to Reproduce
==================
$ sudo kldload ctl
$ sudo ctladm port -o on -p 0
Front End Ports enabled
$ sudo ctladm create -b ramdisk -s 1048576
LUN created successfully
backend: ramdisk
device type: 0
LUN size: 1048576 bytes
blocksize 512 bytes
LUN ID: 0
Serial Number: MYSERIAL0000
Device ID: MYDEVID0000
$ sudo camcontrol devlist
Notice that there are no da devices
$ sudo camcontrol rescan all
Re-scan of bus 0 was successful
$ sudo camcontrol devlist
<FREEBSD CTLDISK 0001> at scbus0 target 0 lun 0 (da0,pass0)
Now there is a da device
$ sudo ctladm remove -b ramdisk -l 0
LUN 0 removed successfully
$ sudo camcontrol devlist
<FREEBSD CTLDISK 0001> at scbus0 target 0 lun 0 (da0,pass0)
Notice that there is still a da device, even though it should be gone.
$ sudo ctladm create -b ramdisk -s 2097152
LUN created successfully
backend: ramdisk
device type: 0
LUN size: 2097152 bytes
blocksize 512 bytes
LUN ID: 0
Serial Number: MYSERIAL0000
Device ID: MYDEVID0000
$ geom disk list da0 | grep Mediasize
Mediasize: 1048576 (1.0M)
Now we recreated the device, but notice that its Mediasize is wrong.
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