[Terminal] switching terminals via Alt+Tab stops working after several seconds

[diver]

This is hrev38658.

• Open 2 Terminal windows
• Hold Alt+Tab for several seconds
• Several seconds later terminals should stop switching and won't react on Alt+Tab anymore until you close all Terminal windows.

[diver]

It seems that it's reproducible in VirtualBox only.

[diver]

Correction, terminal cannot be closed, it will stay in the Deskbar.

[bonefish]

I don't have VirtualBox, but at least on real hardware and in VMware I couldn't reproduce the issue with hrev39515. Please provide stack traces of all threads of both Terminals. To do that enter KDL, get a team listing with teams, and for both Terminal teams do threads <team id> and for each thread bt <thread id>.

[diver]

Still reproducible in hrev39530. I'll try to post more info.

[bonefish]

Thanks! Both application threads are in TermApp::_IsSwitchTarget() waiting for a reply from the respective other team's application. A timeout might already help. Can you try and see if replacing

	BMessage reply;
	if (app.SendMessage(MSG_TERM_WINDOW_INFO, &reply) != B_OK)

by

	BMessage message(MSG_TERM_WINDOW_INFO);
	BMessage reply;
	if (app.SendMessage(&message, &reply, 100000, 100000) != B_OK)

​there improves the situation?

[diver]

Yep, that's fixed it.

[bonefish]

Fixed in hrev39562, though differently.