[macOS] Crash and Failed to set physical memory (RAM) usage limit

[Oleg-Chashko]

qBittorrent & operating system versions

qBittorrent: 4.5.2
macOS: 12.6.3 (21G419)
Qt: 6.4.2
Libtorrent: 2.0.8.0

What is the problem?

crash report - Archive.zip

Steps to reproduce

No response

Additional context

Log(s) & preferences file(s)

Archive.zip

[luzpaz]

@Oleg-Chashko can you add error to ticket title so it's less generic, TIA

[JAIrwin]

I am also seeing this error message. I haven't had a crash, but I see "Failed to set ... Error code: 22..." at every startup. Going into advanced settings and changing Physical Memory limit and saving adds another error to the log.

qBittorrent: 4.5.2 (64 bit)
MacOS: Ventura 13.3

[ghost]

This goes away if you choose libtorrent v1 when downloading or building qbt. Nothing I did after changing this setting would make the error go away including removing the qbittorrent.ini file.

I have made a bug report in for this as well.

[JAIrwin]

Shortly after reading your (101John) post my installation offered the update to qbt 4.5.3. The auto-selected update was the libtorrent v1 version - and the error message has gone away. This raises the question of whether the problem is with libtorrent v2 itself, or qbt's implementation of it (at least in the Mac build). It's a shame the qbt team does not have a dedicated macOS developer (as noted on the download page).

[ghost]

Here is a comment that may explain why...

I'm sorry, but macOS is outside my competence. As far as I remember, @Chocobo1 added support for setting Working Set limit on Unix systems, without having an exact idea on which systems it would work.

Originally posted by @glassez in #18282 (comment)

It looks like there is a patch available for testing if you want to build the master branch using libtorrent v2

#19022

[JAIrwin]

It looks like there is a patch available for testing if you want to build the master branch using libtorrent v2

#19022

It looks like you're suggesting I should contribute rather than complain. It's been a while since I've programmed in anything other than Javascript and PHP, so I'd have to re-learn how to build a Mac app from source. Also I have never contributed code to an open-source project so I'd have to learn all the forking, branching, pull-requesting protocol ...

Still - this project does need MacOS contributors ...

[ghost]

@JAIrwin It took me a lot of time to just learn how to build qBT using a shell script someone else put together.

Even with that script there were issues I had questions about. I am not too familiar with git, and I know how to ask questions which helps.

If you want to give it a shot I can point you in the right direction

[Oleg-Chashko]

@JAIrwin

[JAIrwin]

I can also confirm that I still get the same error with v4.60alpha1. I'm not sure what you meant by "Actions page provided Artifacts", but I am willing to do additional testing if you can clarify what to test.

[xavier2k6]

I can also confirm that I still get the same error with v4.60alpha1. I'm not sure what you meant by "Actions page provided Artifacts", but I am willing to do additional testing if you can clarify what to test.

@101John @JAIrwin @Oleg-Chashko Can you test builds from below:
https://github.com/qbittorrent/qBittorrent/actions/runs/5184996254

[JAIrwin]

@xavier2k6 Sorry to take so long. I randomly selected the last one in the list ([qBittorrent-CI_macOS_GUI=ON_libtorrent-2.0.9_Qt-6.5.0). It included a working .dmg with a qbittorrent.app identifying itself as v4.6.0beta1 (64-bit). Under "software used" it indicates the following libraries:

Qt: 6.5.0
Libtorrent: 2.0.9.0
Boost: 1.82.0
OpenSSL: 1.1.1u
zlib: 1.2.11

It runs on my system (macOS: 13.4 (22F66)) without crashing (at least not immediately) but I still see the error in the log:

6/19/23 7:44 PM - Failed to set physical memory (RAM) usage limit. Error code: 22. Error message: "Invalid argument"