An I/O error occurred ... partfile write error: The handle is invalid

[IntelliMoo]

Please provide the following information

qBittorrent version and Operating System

4.1.1 (64-bit), Windows 10 Home x64

If on linux, libtorrent and Qt version

(type here)

What is the problem

Getting this occasional error message (XXX being placeholders):
An I/O error occurred, 'XXX' paused. XXX partfile write (XXX.!qB) error: The handle is invalid
The torrent does usually proceed to download normally after forcing it to resume.

What is the expected behavior

Not getting that error message and pausing.

Steps to reproduce

Normal operation of proceeding to add and download torrents. May be caused by setting partial torrents instead of downloading all entries.

Extra info(if any)

Started happening with 4.1.1, and the hard drive is fine.

[Tatsuya79]

I got a lot of I/O errors too since updating to 4.1.1 (32 bits), win7 x64.
It's happening when selecting only certain parts of a torrent for download.
It seems to happen when uploading too when a user ask for an incomplete file I suppose. (I saw the file name in the error, and I had just a chunk of it.)

I had a torrent with only some small files selected (around 1MB each) and they could not finish their download showing the I/O error.
Just went back to 4.1.0 without changing anything and they completed fine, download is at 100% now.

[IntelliMoo]

Thanks for the info and confirming. To try combatting the issue I experimented with the Advanced cache settings, and raising the expiry value to 10 minutes seemed to help, but maybe I just wasn't using partial torrents at the time. Will test more.

[THEtomaso]

I can confirm that after a long absence, the I/O errors are now back in v4.1.1. :(
Hate to repeat myself, but I still don't consider it a very good idea to blindly include libtorrent SVN changes with every stable release!

(qBittorrent v4.1.1,x64 / Win8.1Pro,x64)

[Icarus77]

It just happened to me too. I kept force-downloading, and it would keep stopping and giving the error. The download still worked, but it basically refused to go beyond 99%.

[thalieht]

#9028 (comment)

[aini-naire]

I've had this problem when I marked a few files as "Do not download" and they were causing the errors. To workaround, I marked to download everything and shortly after unchecked the unwanted files.

[mzso]

I'm also affected, by this bogus IO error. For me the message is in my locale "leíró érvénytelen".

Also, the final piece not downloading for a file issue seems to be more common.

[mzso]

@thalieht commented on 2018. jún. 21. 06:25 CEST:

#9028 (comment)

So this is fixed? A hotfix release would be nice.

[vicokoby]

This happens to me in qBittorrent v4.2.3 with a torrent containing 1694 files of which select 199, I thought the torrent had become corrupt. What I do is to force the continuation every time the download is stopped by the error.

[puddenn]

Is this still an issue? Lol, I encountered this error today using v4.2.3

Reverted back to 4.1.0 and its working fine. Im just gonna continue using the old version but isnt it a little weird that it isnt fixed yet?

[FranciscoPombal]

I don't think this is a problem in recent versions. This bug report is far to old to be meaningful now anyway.

If you have any issues with the latest version, please open a new issue report.

Thank you for your contributions.