ProcessController/Deskbar crash in AttachScrollers()

[drackham]

This may be the same bug as #1561. I would have added it to that ticket but bug #1794 (unable to add comments to tickets) is still afflicting me.

Test Procedure:

1. Open a few applications (I opened three Terminals)
2. Click on ProcessController in the Deskbar
3. Navigate to "Threads and CPU Usage"->app_server
4. If there are not enough threads listed to cause scrollers to appear at the top and bottom of the list return to step 1.
5. Move mouse pointer over list of app_server's threads.

Result:

Deskbar encounters an error which prevents it from continuing. The attached gdb output implicates a call to BPrivate::BMenuWindow::AttachScrollers ()

[drackham]

gdb backtrace of crashed Deskbar

[drackham]

Ugh... forgot to mention:

This is in hrev24011 built under R5 running on real hardware (PIII-667 320MB ram)

[jackburton]

This seems to have been fixed by hrev24044 too. Can you confirm ?

[drackham]

No, it still occurs in hrev24044 for me. The gdb output looks the same too.

[jackburton]

I still can't reproduce. To make sure I didn't have any uncommitted local change, I downloaded the vmware image of hrev24049 from haiku-files. And I can't reproduce the problem with that image either (see screenshot).

[jackburton]

working scrollers

[jackburton]

Do you have a SMP/Multi core machine by chance ?

[drackham]

I don't get the crash from just a long list of teams in ProcessContoller. Continue one level deeper to the list of threads in the app_server team. If that list is so long as to need scrollers I get a crash when I mouseover it.

I still see it in 24060. I'm using a single processor PIII-667 with 320MB ram.

[jackburton]

I could reproduce it, thank you. It's fixed in hrev24094.