Tested 2.0.0+dfsg-2ubuntu1.18.
Cannot reproduce the issue.
TEST CASE 1:
Attempt several times to copy files on a VDI disk, and couldn't trigger any
corruption (nor deadlock - no regression). Given my test scenario, previously,
I would already have hit the corruption.
TEST CASE 2:
Tested with
** Tags removed: verification-needed
** Tags added: verification-done
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1422307
Title:
qemu-nbd corrupts files
Status in QEMU:
Fix Released
Status in
Please find attach a proposed debdiff for fixing the issue in Ubuntu
Trusty by backporting the fix which is now in Wily.
** Description changed:
+ [Impact]
+ A race condition in the VDI block driver of Qemu leads to image (and thus
file system) corruption under certain circumstances.
+ This
Thanks for the extra information.
I'll open a new bug report at Ubuntu to get the fix backported to
Trusty. Thanks!
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1422307
Title:
qemu-nbd corrupts
Hi,
Was the patch abandoned? I haven't seen any further progress on it for a
month...
Cheers,
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1422307
Title:
qemu-nbd corrupts files
Status in QEMU:
Thanks Max Stefan.
Could you please let me know when the commit makes it to the QEMU
repository? And give me its commit ID?
So that I can ask for a bugfix backport in Trusty.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
So, if I understand well, it's just some kind of race condition in the
handling of writes in the VDI driver of Qemu?
Does that mean it can also affect VMs running with VDI disk(s)?
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
Public bug reported:
Dear all,
On Trusty, in certain situations, try to copy files over a qemu-nbd
mounted file system leads to write errors (and thus, file corruption).
Here is the last example I tried:
- virtual disk is a VDI disk
- It has only one partition, in FAT
Here is my mount process:
ii libselinux1 2.1.0-4.1ubuntu1
SELinux runtime shared libraries
ii linux-firmware 1.79.12
Firmware for Linux kernel drivers
ii linux-headers-3.2.0-60 3.2.0-60.91
