我的问题是，我的 Linux Kubuntu 17.04 时不时会崩溃：鼠标卡住、所有应用程序冻结、风扇加速。
我认为这是因为 RAM 使用率太高并且 Swap 已满，所以我用 Google 搜索并发现用户遇到了同样的问题，他们通过设置限制来保留一些可用 RAM 以使系统正常运行来解决此问题。
不幸的是，这并没有起作用。
有人遇到过同样的问题并成功解决了吗？这是我的崩溃报告：
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbea3a42900 (LWP 4312))]
Thread 3 (Thread 0x7fbe7b0fc700 (LWP 4415)):
#0 0x00007fbea32cf951 in __GI___poll (fds=0x7fbe740029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007fbe9653a169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007fbe9653a27c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007fbe9d51c49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007fbe9d4c1e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007fbe9d2e13ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007fbe9d2e629d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007fbe986477fc in start_thread (arg=0x7fbe7b0fc700) at pthread_create.c:465
#8 0x00007fbea32dbb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 2 (Thread 0x7fbe89c57700 (LWP 4342)):
#0 0x00007fbe9d51c393 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1 0x00007fbe965396a8 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007fbe9653a09b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007fbe9653a27c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007fbe9d51c49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007fbe9d4c1e3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007fbe9d2e13ca in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007fbe9d998e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8 0x00007fbe9d2e629d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9 0x00007fbe986477fc in start_thread (arg=0x7fbe89c57700) at pthread_create.c:465
#10 0x00007fbea32dbb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 1 (Thread 0x7fbea3a42900 (LWP 4312)):
[KCrash Handler]
#6 0x00007fbea35f5d2d in ?? () from /usr/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#7 0x00007fbea35ff051 in ?? () from /usr/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#8 0x00007fbea3600fc6 in ?? () from /usr/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#9 0x00007fbea0b55cd8 in KMainWindow::readPropertiesInternal(KConfig*, int) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#10 0x00007fbea0b55d22 in KMainWindow::restore(int, bool) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#11 0x00007fbea3604dfa in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#12 0x00007fbea31e81c1 in __libc_start_main (main=0x56009c491730, argc=3, argv=0x7ffedb718118, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffedb718108) at ../csu/libc-start.c:308
#13 0x000056009c49176a in _start ()