Potential bug with Windows VM backup: "Body Timeout Error"
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200gb free space was enough in my production system to cause this. The only thing I didn't try was filling it up until I found the point where it started working.
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Hey @andriy.sultanov @olivierlambert
Any news on this?
If I recall correctly some work towards fixing the "compressed full backup of VMs with lots of free space" issue has been done but a fix was not (yet) pushed to the package repositories.Is there a new test build that I could test or similar?
I would love to be able to use full backup method again.Thanks!
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Let me ask internally
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This is the PR: https://github.com/xapi-project/xen-api/pull/6786
It's ready/reviewed, we are waiting for upstream merge. We'll make sure to re-ask for a merge ASAP.
Stay tuned!
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@olivierlambert said in Potential bug with Windows VM backup: "Body Timeout Error":
This is the PR: https://github.com/xapi-project/xen-api/pull/6786
It's ready/reviewed, we are waiting for upstream merge. We'll make sure to re-ask for a merge ASAP.
Stay tuned!
Thank you very much for the update!
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@olivierlambert @andriy.sultanov I saw that the linked PR got merged, which is awesome! I was wondering: do you plan to release this with the next round of patches or even before that as a hotfix?
In each case: if you have a test build I am happy to try it out.Thank you and best regards
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Question for @stormi
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Hey!
Any news in this regard?
Would be really interested in testing this fix in our lab environment if possible.
Thanks and best regards! -
Let me reping @stormi or @Team-XAPI-Network
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@olivierlambert Because Andriy did quite a bit of work before this merge, xcp-ng depends on xenserver releasing the package to the clients before we can integrate it into xcp-ng. I'd say we can release the package February at the earliest
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@psafont @olivierlambert As you previously mentioned february and we reached it as of now - I was wondering: do you have any update on when you plan to push the fix to XCP-ng repositories?
Thanks and best regards
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@MajorP93 It's being packaged at the moment. between this and the testing that needs to be done it might take a couple of weeks to be released, but I can't promise anything yet
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I had same problem, about last 2 weeks, but is is about Xen update, after apply last update, Backup of Windows VMs works again.
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The update mentioned by Pau should has just been released along with other updates. For more information, you can consult the corresponding blog post: https://xcp-ng.org/blog/2026/03/10/march-2026-maintenance-updates-for-xcp-ng-8-3-lts/
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Amazing timing. I have been having this issue with a VM I just set up and I came here to find out if this is a known problem, only to discover that the 97 patches I have been planning to install tonight are going to fix it.
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Did anyone try to patch xo and xcp-ng to the latest and did you have any luck with backups since then?
Im on XO (Xen Orchestra, commit 449e7 and Master, commit 2aff8) and the latest xcp-ng 8.3 with all patches installed and im still seeing the "Body timeout error" on 4/8 vm's:
Some works tho:
Observium has a 20Gb VDI with 15Gb used, jupiter has a 20Gb VDI with 12Gb used.
Let me know if you want any logs from my XO or XCP and I'll happily provide them. -
@nikade I did install the 97 XCP patches and that night the VM that was failing to backup was able to successfully backup. It had a 500GB secondary drive that was formatted but totally empty.
I had not yet patched my XO from source to the latest, it was maybe 24 commits behind. On Friday I updated it so I will find out on Monday if those backups continued to work but I assume they did.
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@CodeMercenary alright, thanks for replying. I tried some more, but still getting the same error, on linux as well as windows vm's so im at lost here.
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@nikade Hey Nikade,
Did you try to create a new job that will do a new chain ? Just for test.
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@Pilow We tried that as well, same problem
Also tried with a VM on the same newtork, just another VLAN, and we're seeing the same thing. At first we figured it was because one of the xcp-ng's was on a remote site which is connected through an IPSEC VPN, but that wasn't the case.
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