Red Hat Bugzilla – Bug 489572
System lockup after screen lock, can't suspend, and can't shutdown
Last modified: 2010-06-28 07:26:19 EDT
Description of problem:
I locked my system to go away for lunch and came back and wasn't prompted for my password.
Version-Release number of selected component (if applicable):
Almost 100% (yes, I realize that's vague but I honestly don't get it every time :( )
Steps to Reproduce:
1. Press Ctrl-Alt-l to lock system and go away for lunch
2. Come back and move mouse; notice nothing displayed on external monitor
3. Open laptop lid and background comes up but no username/password prompt
2. Sometimes it works (rare)
3. Mostly it just sits with a blinking half moon thing
2. Doesn't actually shutdown and I come in the next day to a hot laptop with a terminal full of I/O error messages
Functioning suspend and shutdown
This has been happening for at least 2 months. I never really trust suspend to hibernate but they have both worked on and off in F-9 and F-10. I am fully willing to accept that it's a hardware issue but I don't know how to diagnose that. I looked in Palimpsest and it showed my disk as being fine. When I'm running I rarely notice any odd behaviour - it just seems to be around suspend/shutdown/back-from-screen-lock. I will do whatever it takes to diagnose this problem. Thanks.
Created attachment 334686 [details]
background after coming back from screen lock with no password prompt
Created attachment 334687 [details]
I/O errors on console
I'm seeing similar locking on an X61 with the 32-bit kernel: 126.96.36.199-170.2.35.fc10.i686
So far I've only been able to reproduce when using a docking station w/external monitor, keyboard and mouse.
Usually, the failure to come out or screensaver lock is exactly as Andrew describes. However, this time was a little different in that the lock occured immediately after I'd sucessfully logged-in. The screen saver was removed and I could see my desktop but not interact with it.
- The mouse pointer moved but I could not click on anything
- Alt+tab would not switch apps,
- Ctrl+Alt+Backspace did not kill the X server, no effect
- Ctrl+Alt+F2, switched display to terminal, briefly displayed login prompt but then the screen quickly filled with messages which appeared to come from /var/log/messages
- Many messages scrolled by quickly then stopped at the following, which appeared to repeat every minute or so:
[<c041473b>] ? flush_tlb_page+0x59/0x76
[<c041e60a>] ? ptep_set_access_flags+0x5a/0x64
[<c041f2c5>] ? kunmap_atomic+0x87/0xa7
[<c047c41e>] ? do_wp_page+0x42f/0x498
[<c048eecd>] ? __slab_free+0x63/0x26e
[<c06ac6b2>] ? do_page_fault+0x0/0x710
[<c047d3f2>] ? handle_mm_fault+0xc7/0x6d1
[<c049d9ef>] ? core_sys_select+0x120/0x1a3
[<c06aab89>] ? _spin_lock+0x8/0xb
[<c04a691b>] ? mnt_drop_write+0x60/0xe9
[<c041f7e2>] ? need_resched+0x18/0x22
[<c06a981a>] ? _cond_resched+0x8/0x32
[<c042f0fb>] ? wait_noreap_copyout+0x9e/0xb3
[<c0430336>] ? wait_consider_task+0x6aa/0x8e4
[<c043ef62>] ? autoremove_wake_function+0x0/0x33
[<c043f1b9>] ? remove_wait_queue+0x22/0x29
[<c0430743>] ? do_wait+0x1d3/0x281
[<c04281df>] ? default_wake_function+0x0/0xd
[<c04308fb>] ? sys_waitid+0x61/0x81
[<c06ac6b2>] ? do_page_fault+0x0/0x710
Created attachment 339136 [details]
Found this kerneloops file in /tmp with timestamp which seems to match the screen lockup
This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle.
Changing version to '11'.
More information and reason for this action is here:
Created attachment 354044 [details]
Bug report generated when screen lock issue occurred.
This gnome-screensaver bug report was generated when the issue identified in Bug ID# 489572 happened to my system. I used CTRL-ALT-F2 to get a command-line login, killed gnome-screensaver process, CTRL-ALT-F1 to get back to the once-locked screen to find bug-buddy had generated a bug report for the killed process.
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