我使用的是MuPDF 1.6，一切运行顺利。最近我试图将我的项目升级到MuPDF 1.8。一切都按预期运行，除非我在注释添加到PDF文件时尝试保存。我尝试了不同大小的PDF文件，但每次在Save it上说＃34;不幸的是，MuPDF已经停止，＆＃34;并返回文件选择菜单。我正在使用Kitkat（4.4.2），然后我尝试使用4.2.2，它没有给出错误消息，但我发现PDF文件没有保存。虽然它从MuPDF 1.2到1.6正常工作。然后我从谷歌播放安装了MuPDF 1.8并且它给出了相同的错误信息：＆＃34;不幸的是，MuPDF已停止，＆＃34;当我添加注释并按下后退按钮并在对话框＆＃34;文档有更改时，保存它们？＆＃34;选择是。我搜索并惊讶地发现，即使Play store apk有同样的问题，也没有人报告类似的问题。
主要错误：
12-08 22:25:05.726: A/libc(11538): heap corruption detected by dlmalloc
12-08 22:25:05.726: A/libc(11538): Fatal signal 6 (SIGABRT) at 0x00002d12 (code=-6), thread 11538 (tifex.mupdfdemo)
12-08 22:25:19.741: D/AbsListView(12047): Get MotionRecognitionManager
12-08 22:25:19.826: D/libEGL(12047): loaded /system/lib/egl/libEGL_mali.so
12-08 22:25:19.826: D/libEGL(12047): loaded /system/lib/egl/libGLESv1_CM_mali.so
12-08 22:25:19.831: D/libEGL(12047): loaded /system/lib/egl/libGLESv2_mali.so
12-08 22:25:19.836: E/(12047): Device driver API match
12-08 22:25:19.836: E/(12047): Device driver API version: 23
12-08 22:25:19.836: E/(12047): User space API version: 23
12-08 22:25:19.836: E/(12047): mali: REVISION=Linux-r3p2-01rel3 BUILD_DATE=Fri Mar 21 13:52:50 KST 2014
以下是日志数据：
12-08 22:24:49.446: I/System.out(11538): URI to open is: /storage/emulated/0/Download/Final/fiqr.pdf
12-08 22:24:49.446: I/System.out(11538): Trying to open /storage/emulated/0/Download/Final/fiqr.pdf
12-08 22:24:49.471: D/dalvikvm(11538): Trying to load lib /data/app-lib/com.artifex.mupdfdemo-2/libmupdf.so 0x4203e520
12-08 22:24:49.501: D/dalvikvm(11538): Added shared lib /data/app-lib/com.artifex.mupdfdemo-2/libmupdf.so 0x4203e520
12-08 22:24:49.501: D/dalvikvm(11538): No JNI_OnLoad found in /data/app-lib/com.artifex.mupdfdemo-2/libmupdf.so 0x4203e520, skipping init
12-08 22:24:49.511: I/libmupdf(11538): Opening document...
12-08 22:24:49.551: I/alert(11538): alert_init
12-08 22:24:49.551: I/libmupdf(11538): Done!
12-08 22:24:49.726: D/ProgressBar(11538): setProgressDrawable drawableHeight = 0
12-08 22:24:49.736: D/AbsSeekBar(11538): AbsSeekBar Constructor: misSeebarAnimationAvailable = false
12-08 22:24:49.781: I/alert(11538): Enter startAlerts
12-08 22:24:49.781: I/alert(11538): Exit startAlerts
12-08 22:24:49.791: I/alert(11538): Enter waitForAlert
12-08 22:24:50.021: I/dalvikvm-heap(11538): Grow heap (frag case) to 12.468MB for 4096016-byte allocation
12-08 22:24:50.036: I/dalvikvm-heap(11538): Grow heap (frag case) to 16.379MB for 4096016-byte allocation
12-08 22:24:50.071: D/dalvikvm(11538): GC_FOR_ALLOC freed 306K, 8% free 15498K/16780K, paused 33ms, total 33ms
12-08 22:24:50.126: I/libmupdf(11538): Drop page 0
12-08 22:24:50.126: I/libmupdf(11538): Goto page 0...
12-08 22:24:50.126: I/libmupdf(11538): Load page 0
12-08 22:24:50.126: D/ProgressBar(11538): updateDrawableBounds: left = 0
12-08 22:24:50.126: D/ProgressBar(11538): updateDrawableBounds: top = 0
12-08 22:24:50.126: D/ProgressBar(11538): updateDrawableBounds: right = 64
12-08 22:24:50.126: D/ProgressBar(11538): updateDrawableBounds: bottom = 64
12-08 22:24:50.126: I/libmupdf(11538): PageWidth=1191
12-08 22:24:50.126: I/libmupdf(11538): PageHeight=1685
12-08 22:24:50.141: D/dalvikvm(11538): GC_FOR_ALLOC freed 60K, 8% free 15545K/16780K, paused 16ms, total 16ms
12-08 22:24:50.151: I/dalvikvm-heap(11538): Grow heap (frag case) to 20.032MB for 4096016-byte allocation
12-08 22:24:50.166: D/dalvikvm(11538): GC_FOR_ALLOC freed 2K, 6% free 19542K/20784K, paused 16ms, total 16ms
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: left = 0
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: top = 0
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: right = 64
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: bottom = 64
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: left = 0
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: top = 0
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: right = 758
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: bottom = 37
12-08 22:24:50.181: D/ProgressBar(11538): updateDrawableBounds: mProgressDrawable.setBounds()
12-08 22:24:50.196: I/libmupdf(11538): Drop page 0
12-08 22:24:50.196: I/libmupdf(11538): Goto page 1...
12-08 22:24:50.196: I/libmupdf(11538): Load page 1
12-08 22:24:50.196: I/libmupdf(11538): PageWidth=1191
12-08 22:24:50.196: I/libmupdf(11538): PageHeight=1685
12-08 22:24:50.351: I/libmupdf(11538): PageWidth=1191
12-08 22:24:50.351: I/libmupdf(11538): PageHeight=1685
12-08 22:24:50.351: I/libmupdf(11538): In native method
12-08 22:24:50.351: I/libmupdf(11538): Checking format
12-08 22:24:50.351: I/libmupdf(11538): locking pixels
12-08 22:24:50.351: I/libmupdf(11538): Rendering page(0)=800x1131 patch=[0,0,800,1131]
12-08 22:24:50.696: I/libmupdf(11538): Rendered
12-08 22:24:50.696: I/libmupdf(11538): PageWidth=1191
12-08 22:24:50.701: I/libmupdf(11538): PageHeight=1685
12-08 22:24:50.701: I/libmupdf(11538): In native method
12-08 22:24:50.701: I/libmupdf(11538): Checking format
12-08 22:24:50.701: I/libmupdf(11538): locking pixels
12-08 22:24:50.701: I/libmupdf(11538): Rendering page(1)=800x1131 patch=[0,0,800,1131]
12-08 22:24:50.851: I/libmupdf(11538): Rendered
12-08 22:24:52.951: D/ProgressBar(11538): updateDrawableBounds: left = 0
12-08 22:24:52.951: I/libmupdf(11538): Drop page 0
12-08 22:24:52.951: D/ProgressBar(11538): updateDrawableBounds: top = 0
12-08 22:24:52.951: D/ProgressBar(11538): updateDrawableBounds: right = 64
12-08 22:24:52.951: D/ProgressBar(11538): updateDrawableBounds: bottom = 64
12-08 22:24:52.951: I/libmupdf(11538): Goto page 2...
12-08 22:24:52.951: I/libmupdf(11538): Load page 2
12-08 22:24:52.951: I/libmupdf(11538): PageWidth=1191
12-08 22:24:52.951: I/libmupdf(11538): PageHeight=1685
12-08 22:24:52.991: I/libmupdf(11538): PageWidth=1191
12-08 22:24:52.991: I/libmupdf(11538): PageHeight=1685
12-08 22:24:52.991: I/libmupdf(11538): In native method
12-08 22:24:52.991: I/libmupdf(11538): Checking format
12-08 22:24:52.991: I/libmupdf(11538): locking pixels
12-08 22:24:52.991: I/libmupdf(11538): Rendering page(2)=800x1131 patch=[0,0,800,1131]
12-08 22:24:53.366: I/libmupdf(11538): Rendered
12-08 22:24:56.271: I/libmupdf(11538): PageWidth=1191
12-08 22:24:56.271: I/libmupdf(11538): PageHeight=1685
12-08 22:24:57.861: I/libmupdf(11538): PageWidth=1191
12-08 22:24:57.861: I/libmupdf(11538): PageHeight=1685
12-08 22:24:58.036: I/libmupdf(11538): In native method
12-08 22:24:58.036: I/libmupdf(11538): Checking format
12-08 22:24:58.036: I/libmupdf(11538): locking pixels
12-08 22:24:58.036: I/libmupdf(11538): Rendering page(1)=800x1131 patch=[0,0,800,1131]
12-08 22:24:58.036: I/libmupdf(11538): Start partial update
12-08 22:24:58.036: I/libmupdf(11538): Update rectangle (123, 364, 676, 464)
12-08 22:24:58.036: I/libmupdf(11538): And it isn't empty
12-08 22:24:58.036: I/libmupdf(11538): End partial update
12-08 22:24:58.036: I/libmupdf(11538): Rendered
12-08 22:25:01.971: E/ViewRootImpl(11538): sendUserActionEvent() mView == null
12-08 22:25:05.726: A/libc(11538): heap corruption detected by dlmalloc
12-08 22:25:05.726: A/libc(11538): Fatal signal 6 (SIGABRT) at 0x00002d12 (code=-6), thread 11538 (tifex.mupdfdemo)
12-08 22:25:19.741: D/AbsListView(12047): Get MotionRecognitionManager
12-08 22:25:19.826: D/libEGL(12047): loaded /system/lib/egl/libEGL_mali.so
12-08 22:25:19.826: D/libEGL(12047): loaded /system/lib/egl/libGLESv1_CM_mali.so
12-08 22:25:19.831: D/libEGL(12047): loaded /system/lib/egl/libGLESv2_mali.so
12-08 22:25:19.836: E/(12047): Device driver API match
12-08 22:25:19.836: E/(12047): Device driver API version: 23
12-08 22:25:19.836: E/(12047): User space API version: 23
12-08 22:25:19.836: E/(12047): mali: REVISION=Linux-r3p2-01rel3 BUILD_DATE=Fri Mar 21 13:52:50 KST 2014