mounting 9p file system fails intermittently in qemu guest
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Lucid |
Fix Released
|
Undecided
|
Tim Gardner |
Bug Description
$ uname -a
Linux zzz 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:48:22 UTC 2010 i686 GNU/Linux
$ cat /proc/version_
Ubuntu 2.6.32-
Ubuntu version: lucid
Attempting to mount a 9p file system in a qemu guest fails intermittently with the error message "Unable to read superblock". I tracked this down to an uninitialized field in the virtio transport. A patch to fix it is attached.
Note: this bug has been fixed upstream in a minor release (2.6.33)
To reproduce: you must be running qemu >= 0.13
$ qemu -virtfs local,path=
When the system comes up, run the following command:
# mount -t 9p -o trans=virtio,
The command fails intermittently with 'unable to read superblock'.
Related branches
CVE References
tags: | added: kj-triage |
Changed in linux (Ubuntu): | |
status: | Triaged → Fix Released |
Changed in linux (Ubuntu Lucid): | |
assignee: | nobody → Tim Gardner (timg-tpi) |
status: | New → In Progress |
The last patch used spaces instead of tabs. Use this one instead.