Profile system is broken

[aleixpol]

Describe the bug
None of the two options (kdesu, kdesudo) are current anymore.
I also tried modifying the code and use sudo, enter the password from the terminal, but it still didn't give me any profile information.

To Reproduce
Try to profile the system.

That's the output I got:

[sudo] password for apol: 
rewriting to /tmp/hotspot.DCEbKv
tee: /tmp/hotspot.DCEbKv: Permission denied
querying current privileges...
kernel.kptr_restrict = 0
kernel.perf_event_paranoid = -1
/sys/kernel/debug 755
/sys/kernel/debug/tracing 755

elevating privileges...
kernel.kptr_restrict = 0
kernel.perf_event_paranoid = -1
/sys/kernel/debug 755
/sys/kernel/debug/tracing 755

privileges elevated!

Then the stop button never really showed anything and pressing it again gave a
[warning] hotspot (unknown:0) - QProcess: Destroyed while process ("/usr/bin/sudo") is still running..

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Version Info (please complete the following information):

• Linux Kernel version: 5.6.3-arch1-1
• perf version: 5.6.g7111951b8d49
• hotspot version (selfcompiled): master
• elfutils: 0.178-2

[milianw]

hmm I'll have to check this. To admit, I rarely if ever use this mode as it creates huge files which are often hard to analyze.

[milianw]

very odd: https://stackoverflow.com/questions/61827673/root-cannot-write-to-file-in-tmpfs

I'll try to workaround this, but do you know why this is? afaik this used to work as-is, but now root cannot write to files in /tmp/ that are owned by other users?

[milianw]

OK, latest master now works again for me - does it work for you too? I'm really surprised by the changed behavior though...

[aleixpol]

Sorry for the delay ^^' the issue in hotspot is fixed for me.

I tried to reproduce your problem from stack overflow and I couldn't reproduce. It doesn't make sense.