Description of problem: Instaled updates up to June 26 and the kvm stack, nothing else, the kde environment doesn't work unless in failsafe mode from then on. Version-Release number of selected component: kde-workspace-4.10.4-1.fc18 Additional info: reporter: libreport-2.1.4 backtrace_rating: 4 cmdline: /usr/bin/plasma-desktop --nocrashhandler core_backtrace: crash_function: FixedVMPoolAllocator executable: /usr/bin/plasma-desktop kernel: 3.9.6-200.fc18.x86_64 runlevel: N 5 uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 FixedVMPoolAllocator at ../3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorFixedVMPool.cpp:310 #1 QTJSC::ExecutablePool::systemAlloc at ../3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorFixedVMPool.cpp:443 #2 ExecutablePool at ../3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocator.h:258 #3 create at ../3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocator.h:97 #4 ExecutableAllocator at ../3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocator.h:150 #5 QTJSC::JSGlobalData::JSGlobalData at ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSGlobalData.cpp:146 #6 QTJSC::JSGlobalData::create at ../3rdparty/javascriptcore/JavaScriptCore/runtime/JSGlobalData.cpp:205 #7 QScriptEnginePrivate::QScriptEnginePrivate at api/qscriptengine.cpp:979 #8 QScriptEngine::QScriptEngine at api/qscriptengine.cpp:1964 #9 QDeclarativeScriptEngine::QDeclarativeScriptEngine at qml/qdeclarativeengine.cpp:385
Created attachment 766209 [details] File: backtrace
Created attachment 766210 [details] File: cgroup
Created attachment 766211 [details] File: dso_list
Created attachment 766212 [details] File: environ
Created attachment 766213 [details] File: limits
Created attachment 766214 [details] File: maps
Created attachment 766215 [details] File: open_fds
Created attachment 766216 [details] File: proc_pid_status
Created attachment 766217 [details] File: var_log_messages
Created attachment 766218 [details] File: xsession_errors
How much RAM/VM do you have? It would appear the Qt JavaScript JIT is failing memory allocations.
free -m total used free shared buffers cached Mem: 3755 2980 775 0 96 1456 -/+ buffers/cache: 1427 2328 Swap: 3759 0 3759 vmstat procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 0 737444 99324 1501148 0 0 78 20 145 1654 3 2 94 2
I just found the cause, I was tuning a Postgresql server and in the book I'm reading "PostgreSQL High Performace" is adviced to set vm.overcommit=0 for a PostgreSQL server. Reset it to its default value and things are working again. Thanks for your time
I'm sorry, the value that wm.overcommit was set to is 2, changed it to 0
*** This bug has been marked as a duplicate of bug 877711 ***