Bug 473823

Description of problem:

After upgrading from Fedora 9 to Fedora 10 using preupgrade resume from Suspend mode doesn't work: the computer resumes and shows GDM login screen but after logging in none of the suspended programs exist any more.

I finally found out a stack trace in /var/log/Xorg.log.old that seems to explain the behavior. Although it's not visible, Xorg apparently crashes while being resumed from Suspend and loses the programs in the X session. It then immediately restarts and the user sees the login screen.

Just recently I found out that the server crashes also when switching to/from another virtual terminal:

Backtrace:
0: /usr/bin/Xorg(xorg_backtrace+0x3b) [0x812bc5b]
1: /usr/bin/Xorg(xf86SigHandler+0x51) [0x80bcc81]
2: [0x110400]
3: /usr/lib/xorg/modules/drivers//radeon_drv.so [0x3774cb]
4: /usr/lib/xorg/modules/drivers//radeon_drv.so(radeon_update_dri_buffers+0x6f) 
[0x37760f]
5: /usr/lib/xorg/modules/drivers//radeon_drv.so(RADEONEnterVT+0xbb) [0x3490db]
6: /usr/bin/Xorg [0x80d1fd1]
7: /usr/bin/Xorg [0x80c4c74]
8: /usr/bin/Xorg(xf86Wakeup+0x3d3) [0x80bd993]
9: /usr/bin/Xorg(WakeupHandler+0x52) [0x8089c22]
10: /usr/bin/Xorg(WaitForSomething+0x1a3) [0x8128fa3]
11: /usr/bin/Xorg(Dispatch+0x7e) [0x8085bce]
12: /usr/bin/Xorg(main+0x47d) [0x806b71d]
13: /lib/libc.so.6(__libc_start_main+0xe5) [0x6ae6d5]
14: /usr/bin/Xorg [0x806ab01]

I suspect there is a common problem behind the both problems.

I noticed the problem with xorg-x11-drv-ati-6.9.0-54, the problem remains even after upgrading to xorg-x11-drv-ati-6.9.0-60.

How reproducible:
Always

Steps to Reproduce:
1. Open some programs in the X session
2. Press Control-Alt-F2
3. Press Alt-F1
  
Actual results:
GDM login, started programs gone

Expected results:
Started programs visible