Created attachment 609704 [details] Evolution screenshot $ rpm -qa | grep evolution | sort evolution-3.4.4-1.fc17.i686 evolution-data-server-3.4.4-2.fc17.i686 evolution-data-server-debuginfo-3.4.4-2.fc17.i686 evolution-debuginfo-3.4.4-1.fc17.i686 evolution-ews-3.4.4-1.2.fc17.i686 evolution-ews-debuginfo-3.4.4-1.2.fc17.i686 evolution-exchange-3.4.4-2.fc17.i686 evolution-exchange-debuginfo-3.4.4-2.fc17.i686 evolution-mapi-3.4.4-1.fc17.i686 evolution-mapi-debuginfo-3.4.4-1.fc17.i686 evolution-NetworkManager-3.4.4-1.fc17.i686 Description of problem: 1. Switch to another network interface (exchange in unavailable) 2. Click on non recieved messages (in bottom see progress bar) 3. Repeat step 2 until the whole botton panel was occupied by a progress indicator 4. Press "Send / Receive" button 5. Try to cantel Evolution now hangs
Created attachment 609705 [details] backtrace evolution
Created attachment 609706 [details] backtrace evolution
Thanks for a bug report. I see from the backtrace what is going on, but it is not fixable in 3.4.x that easily. The 3.5.91 contains improvements which makes this easier. I checked the upstream code and I see that it still can happen there, thus I'm fixing it there.
Created commit d049ef2 in ews master (3.5.92+)