A colleague is having the identical problem with a MacBook Air and 10.5.5.
This issue is also discussed on this thread:
WindowServer crashes
In our case the system log produces:
Oct 22 23:04:33 Kathys-MacBook-Air /usr/libexec/hidd[28]: IOHIDEventQueueEnqueue: Error enqueuing memory. (0xe00002e8)
Oct 22 23:04:35: --- last message repeated 134 times ---
Oct 22 23:04:35 Kathys-MacBook-Air ReportCrash[238]: Formulating crash report for process WindowServer[53]
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[1] (com.apple.WindowServer[53]): Exited abnormally: Segmentation fault
Oct 22 23:04:36 Kathys-MacBook-Air /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow[239]: Login Window Application Started
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] (com.apple.AirPortBaseStationAgent[93]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] (com.apple.pboard[106]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x27027].com.adobe.Reader[208]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x17017].com.microsoft.Excel[132]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x12012].com.cesoft.qmpm[115]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0xc00c].com.apple.finder[103]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0xf00f].com.apple.Safari[110]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x15015].com.palm.desktop[123]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] (com.apple.UserEventAgent-Aqua[99]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x1b01b].com.microsoft.Word[140]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x11011].com.apple.iTunesHelper[113]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] (com.apple.ScreenSharing.server[96]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] (com.apple.Spotlight[98]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x18018].com.microsoft.DatabaseDaemon[133]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x9009].com.apple.dock[100]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0x14014].com.CESoftware.QMNetworker[119]): Exited: Terminated
Oct 22 23:04:36 Kathys-MacBook-Air com.apple.launchd[67] ([0x0-0xb00b].com.apple.systemuiserver[102]): Exited: Terminated
Oct 22 23:04:37 Kathys-MacBook-Air ReportCrash[238]: Saved crashreport to /Library/Logs/CrashReporter/WindowServer
2008-10-22-230431Kathys-MacBook-Air.crash using uid: 0 gid: 0, euid: 0 egid: 0
Oct 22 23:04:37 Kathys-MacBook-Air loginwindow[239]: Login Window Started Security Agent
Oct 22 23:04:58 Kathys-MacBook-Air authorizationhost[248]: MechanismInvoke 0x12f1d0 retainCount 2
Oct 22 23:04:58 Kathys-MacBook-Air SecurityAgent[249]: MechanismInvoke 0x101690 retainCount 1
Oct 22 23:04:58 Kathys-MacBook-Air SecurityAgent[249]: NSSecureTextFieldCell detected a field editor ((null)) that is not a NSTextView subclass designed to work with the cell. Ignoring...
Oct 22 23:04:58 Kathys-MacBook-Air loginwindow[239]: Login Window - Returned from Security Agent
Oct 22 23:04:58 Kathys-MacBook-Air SecurityAgent[249]: MechanismDestroy 0x101690 retainCount 1
Oct 22 23:04:58 Kathys-MacBook-Air authorizationhost[248]: MechanismDestroy 0x12f1d0 retainCount 2
Oct 22 23:04:58 Kathys-MacBook-Air loginwindow[239]: USER_PROCESS: 239 console
Oct 22 23:04:58 Kathys-MacBook-Air com.apple.launchd[1] (com.apple.UserEventAgent-LoginWindow[244]): Exited: Terminated
Oct 22 23:04:58 Kathys-MacBook-Air com.apple.launchd[1] (com.apple.ScreenSharing.server[243]): Exited: Terminated
Oct 22 23:04:59 Kathys-MacBook-Air /System/Library/CoreServices/coreservicesd[46]: SFLSharePointsEntry::CreateDSRecord: dsCreateRecordAndOpen(supervisor's Public Folder) returned -14135
Oct 22 23:04:59 Kathys-MacBook-Air /System/Library/CoreServices/coreservicesd[46]: SFLSharePointsEntry::CreateDSRecord: dsCreateRecordAndOpen(Kathy Chernus's Public Folder) returned -14135
And the Crash Log (up to the binary images section) shows:
Process: WindowServer [53]
Path: /System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphic s.framework/Resources/WindowServer
Identifier: WindowServer
Version: ??? (???)
Code Type: X86 (Native)
Parent Process: launchd [1]
Date/Time: 2008-10-22 23:04:31.000 -0400
OS Version: Mac OS X 10.5.5 (9F33)
Report Version: 6
Exception Type: EXC
BADACCESS (SIGSEGV)
Exception Codes: KERN
PROTECTIONFAILURE at 0x00000000bca93000
Crashed Thread: 0
Thread 0 Crashed:
0 ...ple.CoreServices.CarbonCore 0x9675dc36 UCKeyTranslate + 672
1 com.apple.CoreGraphics 0x91ac3ffb CGSUniCodeForKeyAndFlags + 152
2 com.apple.CoreGraphics 0x9183822a CGXCheckForHotKey + 499
3 com.apple.CoreGraphics 0x91804db2 sPostContinuation + 1759
4 com.apple.CoreGraphics 0x91803fa9 CGXFilterEvent + 71
5 com.apple.CoreGraphics 0x918042b8 CGXProcessHIDEvent + 157
6 com.apple.CoreGraphics 0x91804211 sHIDContinuation + 537
7 com.apple.CoreGraphics 0x91803fa9 CGXFilterEvent + 71
8 com.apple.CoreGraphics 0x91803cd3 CGXGetNextEvent + 152
9 com.apple.CoreGraphics 0x91803c00 CGXRunOneEventPass + 48
10 com.apple.CoreGraphics 0x91806131 eventNotificationHandler + 106
11 com.apple.CoreGraphics 0x918060aa CGXPostPortData + 158
12 com.apple.CoreGraphics 0x91805ea0 CGXRunOneServerPass + 556
13 com.apple.CoreGraphics 0x918024bf CGXRunOneServicesPass + 377
14 com.apple.CoreGraphics 0x9180d4a6 CGXServerLoop + 161
15 com.apple.CoreGraphics 0x9179c4f9 CGXGetRootAdminCredentials + 0
16 WindowServer 0x00001ff4 main + 24
17 WindowServer 0x00001fbe start + 54
Thread 1:
0 libSystem.B.dylib 0x94fb64a6 mach
msgtrap + 10
1 libSystem.B.dylib 0x94fbdc9c mach_msg + 72
2 libSystem.B.dylib 0x950a0f23 mach
msgreceive + 63
3 com.apple.framework.IOKit 0x90049fe1 __tickleThread + 41
4 libSystem.B.dylib 0x94fe76f5
pthreadstart + 321
5 libSystem.B.dylib 0x94fe75b2 thread_start + 34
Thread 2:
0 libSystem.B.dylib 0x94fb64a6 mach
msgtrap + 10
1 libSystem.B.dylib 0x94fbdc9c mach_msg + 72
2 com.apple.CoreFoundation 0x93fff0ce CFRunLoopRunSpecific + 1790
3 com.apple.CoreFoundation 0x93fffd54 CFRunLoopRun + 84
4 com.apple.CoreGraphics 0x917efe79 eventThread + 499
5 libSystem.B.dylib 0x94fe76f5
pthreadstart + 321
6 libSystem.B.dylib 0x94fe75b2 thread_start + 34
Thread 3:
0 libSystem.B.dylib 0x94fbd68e
_semwaitsignal + 10
1 libSystem.B.dylib 0x94fe836d pthread
condwait$UNIX2003 + 73
2 libGLProgrammability.dylib 0x92ea8b32 glvmDoWork + 162
3 libSystem.B.dylib 0x94fe76f5
pthreadstart + 321
4 libSystem.B.dylib 0x94fe75b2 thread_start + 34
Thread 4:
0 libSystem.B.dylib 0x94fbd68e
_semwaitsignal + 10
1 libSystem.B.dylib 0x94fe836d pthread
condwait$UNIX2003 + 73
2 com.apple.CoreGraphics 0x91a8be6d layer
blitthread + 229
3 com.apple.CoreGraphics 0x91a8c392 layer
blit_asyncthread + 95
4 libSystem.B.dylib 0x94fe76f5
pthreadstart + 321
5 libSystem.B.dylib 0x94fe75b2 thread_start + 34
Thread 0 crashed with X86 Thread State (32-bit):
eax: 0xbfff6d28 ebx: 0x9183804b ecx: 0x00000000 edx: 0xbca93000
edi: 0x00a53000 esi: 0x00000006 ebp: 0xbfff6cd8 esp: 0xbfff6c80
ss: 0x0000001f efl: 0x00010246 eip: 0x9675dc36 cs: 0x00000017
ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037
cr2: 0xbca93000
Note that the other thread says this has been reported to apple through a poster who has a developer connection membership, but Apple closed it as a duplicate and there haven't been any updates about it.