With Limiting the memory,unknown error made the jvm crash.

[jiangjiongyu]

Environment Info

Linux 81-228 5.15.0-122-generic
ldd (Ubuntu GLIBC 2.35-0ubuntu3.8) 2.35

Jvm Conf

-Dorg.bytedeco.javacpp.maxPhysicalBytes=4G -Dorg.bytedeco.javacpp.maxBytes=4G -Dorg.bytedeco.javacpp.noPointerGC=true -Dorg.bytedeco.javacpp.logger.debug=true -XX:+PreserveFramePointer

Crash Info

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007ff55263d770, pid=2934393, tid=0x00007ff5ec78d640
# OpenJDK Runtime Environment 8.0
 Problematic frame:
# C  [libavformat.so.60+0x1e4770]  av_write_frame+0x140

---------------  T H R E A D  ------------
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007efeba29dea0, pid=3069676, tid=0x00007efeb9dff640
#
# JRE version: OpenJDK Runtime Environment 
# Java VM: OpenJDK 64-Bit Server VM
# Problematic frame:
# C  [libswscale.so.7+0x36ea0]
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
#   https://github.com/adoptium/adoptium-support/issues
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

---------------  T H R E A D  ---------------

Current thread (0x00007eff5c067000):  JavaThread "pool-138-thread-1" [_thread_in_native, id=3075030, stack(0x00007efeb9d00000,0x00007efeb9e00000)]

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x00007efeb6e1e012

Registers:
RAX=0x0000000000000458, RBX=0x00007efe9c8700c0, RCX=0x0000000000004087, RDX=0x00000000000020de
RSP=0x00007efeb9dfdf68, RBP=0x00007efe9cdbb4c0, RSI=0x0000000000000c88, RDI=0x0000000000001160
R8 =0x00007efeb6e1e010, R9 =0x0000000000000000, R10=0x00007efeb9dfe210, R11=0x00007efeb6e1e010
R12=0x00007efe9cf0e1c0, R13=0x00000000ffffecff, R14=0x0000000000000457, R15=0x00000000000009be
RIP=0x00007efeba29dea0, EFLAGS=0x0000000000010202, CSGSFS=0x002b000000000033, ERR=0x0000000000000004
  TRAPNO=0x000000000000000e

Top of Stack: (sp=0x00007efeb9dfdf68)
0x00007efeb9dfdf68:   00007eff3021ef30 00007efeb6e1e010
0x00007efeb9dfdf78:   00007efe9cdbb4c0 00007efe9c8700c0
0x00007efeb9dfdf88:   0000000000000458 00000000000009be
0x00007efeb9dfdf98:   00007efeba2d0385 00000000000008b0
0x00007efeb9dfdfa8:   0000000000000458 0000000000001a10
0x00007efeb9dfdfb8:   00007eff3021ef30 0000000000000002
0x00007efeb9dfdfc8:   0000000000000040 00007eff30000030
0x00007efeb9dfdfd8:   00007eff301c70b0 00007efe9c8700c0
0x00007efeb9dfdfe8:   00007efeb6e1e010 00007efe9cdbb4c0
0x00007efeb9dfdff8:   00007efe9cf0e1c0 000009c0f9ed6d5c
0x00007efeb9dfe008:   00000458000008b0 000008b000001a10
0x00007efeb9dfe018:   0000000000000040 0000000000002360
0x00007efeb9dfe028:   0000000000000000 00007efeb9dfe200
0x00007efeb9dfe038:   00000000000009c0 00007eff30215500
0x00007efeb9dfe048:   00007efeb9dfe230 0000000000000000
0x00007efeb9dfe058:   00007efeba2afda1 00000000000008b0
0x00007efeb9dfe068:   0000000000000458 0000000000001a10
0x00007efeb9dfe078:   00007eff3021ef30 00007eff30061e40
0x00007efeb9dfe088:   00007efeb9dfe230 00007efeb9dfe210
0x00007efeb9dfe098:   0000000000000003 00000000000008b0
0x00007efeb9dfe0a8:   00007efeba2a15fe 00007efeb9dfe200
0x00007efeb9dfe0b8:   00007efeba2a14e3 00000000000fd3db
0x00007efeb9dfe0c8:   00007eff30215500 00007eff30061e40
0x00007efeb9dfe0d8:   00000000000009c0 00000458000009c0
0x00007efeb9dfe0e8:   0000000000000458 00000000000009c0
0x00007efeb9dfe0f8:   0000000000000001 00007efe00000002
0x00007efeb9dfe108:   00007efe000009c0 0000000000000000
0x00007efeb9dfe118:   0000000000000000 0000000000000000
0x00007efeb9dfe128:   00000000000009c0 00007efeb9dfe180
0x00007efeb9dfe138:   00007effe625dc28 00007eff30215500
0x00007efeb9dfe148:   00000000000008b0 00000000000009c0
0x00007efeb9dfe158:   00007eff5c067000 00000007c0af8258 

Instructions: (pc=0x00007efeba29dea0)
0x00007efeba29de80:   8b 44 24 d8 4c 8b 44 24 b8 45 31 c9 85 c0 0f 8e
0x00007efeba29de90:   9c 01 00 00 4c 89 6c 24 d0 44 8b 6c 24 fc 66 90
0x00007efeba29dea0:   45 0f b6 58 02 41 0f b6 40 01 49 83 c0 06 8b 7c
0x00007efeba29deb0:   24 a0 45 0f b6 50 fa 45 89 df 45 0f af fd 0f af 

Register to memory mapping:

RAX=0x0000000000000458 is an unknown value
RBX=0x00007efe9c8700c0 is an unknown value
RCX=0x0000000000004087 is an unknown value
RDX=0x00000000000020de is an unknown value
RSP=0x00007efeb9dfdf68 is pointing into the stack for thread: 0x00007eff5c067000
RBP=0x00007efe9cdbb4c0 is an unknown value
RSI=0x0000000000000c88 is an unknown value
RDI=0x0000000000001160 is an unknown value
R8 =0x00007efeb6e1e010 is an unknown value
R9 =0x0000000000000000 is an unknown value
R10=0x00007efeb9dfe210 is pointing into the stack for thread: 0x00007eff5c067000
R11=0x00007efeb6e1e010 is an unknown value
R12=0x00007efe9cf0e1c0 is an unknown value
R13=0x00000000ffffecff is an unknown value
R14=0x0000000000000457 is an unknown value
R15=0x00000000000009be is an unknown value


Stack: [0x00007efeb9d00000,0x00007efeb9e00000],  sp=0x00007efeb9dfdf68,  free space=1015k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [libswscale.so.7+0x36ea0]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  org.bytedeco.ffmpeg.global.swscale.sws_scale(Lorg/bytedeco/ffmpeg/swscale/SwsContext;Lorg/bytedeco/javacpp/PointerPointer;Lorg/bytedeco/javacpp/IntPointer;IILorg/bytedeco/javacpp/PointerPointer;Lorg/bytedeco/javacpp/IntPointer;)I+0
j  org.bytedeco.javacv.FFmpegFrameRecorder.recordImage(IIIIII[Ljava/nio/Buffer;)Z+637
j  org.bytedeco.javacv.FFmpegFrameRecorder.record(Lorg/bytedeco/javacv/Frame;I)V+77
j  org.bytedeco.javacv.FFmpegFrameRecorder.record(Lorg/bytedeco/javacv/Frame;)V+30
j  com.xxxxxx.xxxxxx.xxxxxx.xxxxxx.record.FrameDataWriter.recordFrameToVideo(Lorg/bytedeco/javacv/Frame;)V+99
j  com.xxxxxx.xxxxxx.xxxxxx.xxxxxx.record.FrameDataWriter.handleFrameByMode(Lorg/bytedeco/javacv/Frame;)V+42
j  com.xxxxxx.xxxxxx.xxxxxx.xxxxxx.record.FrameDataWriter.playSuspendScenarios()V+183
j  com.xxxxxx.xxxxxx.xxxxxx.xxxxxx.record.FrameDataWriter.handleOtherMode()V+53
j  com.xxxxxx.xxxxxx.xxxxxx.xxxxxx.record.FrameDataWriter.run()V+114
j  java.lang.Thread.run()V+11
j  java.util.concurrent.ThreadPoolExecutor.runWorker(Ljava/util/concurrent/ThreadPoolExecutor$Worker;)V+95
j  java.util.concurrent.ThreadPoolExecutor$Worker.run()V+5
j  java.lang.Thread.run()V+11
v  ~StubRoutines::call_stub

Running Code

public class FrameDataWriter implements Runnable {
    private static final Logger LOGGER = LoggerProxy.getLogger(FrameDataWriter.class);
    private static final String VIDEO_NAME = "video.mp4";
    private static final int FRAME_RATE_VALUE = 60;

    public static final int AV_CODEC_ID_H264 = 27;

    private final String outputDir;

    private final RecordingBean recordingBean;

    private FFmpegFrameRecorder fFmpegFrameRecorder;
    private FFmpegFrameGrabber frameGrabber;

    private File binaryFile;

    public FrameDataWriter(String serial, RecordingBean recordingBean) {
        this.outputDir = recordingBean.getOutputDir();
        this.recordingBean = recordingBean;
    }

    @Override
    public void run() {
        handleOtherMode();
    }

    private Logger logger() {
        return LOGGER;
    }

    private void initGrabber() throws FFmpegFrameGrabber.Exception {
        this.frameGrabber = new FFmpegFrameGrabber(binaryFile);
        this.frameGrabber.setVideoCodec(AV_CODEC_ID_H264);
        this.frameGrabber.setFrameRate(FRAME_RATE_VALUE);
        frameGrabber.start(true);
    }

    private String addTag(String msg) {
        return String.format(Locale.ENGLISH, "%s %s", recordingBean.getUuid(), msg);
    }

    private void handleFrameByMode() throws Exception {
        initGrabber();
        int count = 0;
        for (;;) {
            try (Frame frame = frameGrabber.grabFrame()) {
                if (frame == null) {
                    break;
                }
                recordFrameToVideo(frame);
                count++;
            } catch (Exception e) {
                logger().debug(addTag("Play dynamic scenarios to grab frame error:{}"), e);
            }
        }
        logger().debug(addTag("Handle frame finished! And frame count is " + count));
    }

    public void handleOtherMode() {
        long startTime = System.currentTimeMillis();
        logger().debug(addTag("Intent to write, please wait!"));
        this.binaryFile = recordingBean.getBinaryFile();
        try {
            handleFrameByMode();
        } catch (Exception e) {
            logger().error(addTag("Take frame error:{}"), e);
        } finally {
            tearDown();
            long duration = System.currentTimeMillis() - startTime;
            logger().debug(addTag("Write frame to file duration: {}ms"), duration);
        }
    }

    private void recordFrameToVideo(Frame frame) throws Exception {
        if (fFmpegFrameRecorder == null) {
            int w = frame.imageWidth;
            int h = frame.imageHeight;
            if (w > 0 && h > 0) {
                fFmpegFrameRecorder = new FFmpegFrameRecorder(new File(outputDir, VIDEO_NAME), frame.imageWidth,
                        frame.imageHeight);
                fFmpegFrameRecorder.setFrameRate(FRAME_RATE_VALUE);
                fFmpegFrameRecorder.setVideoCodec(AV_CODEC_ID_H264);
                fFmpegFrameRecorder.start();
            }
        }
        if (fFmpegFrameRecorder != null) {
            fFmpegFrameRecorder.record(frame);
        }
    }

    private void tearDown() {
        try {
            if (fFmpegFrameRecorder != null) {
                fFmpegFrameRecorder.close();
                fFmpegFrameRecorder = null;
            }
            if (frameGrabber != null) {
                frameGrabber.close();
                frameGrabber = null;
            }
        } catch (IOException e) {
            logger().error(addTag("Frame teardown error:{}"), e);
        } finally {
            logger().info(addTag("H264 Writer finished!"));
        }
    }
}

[saudet]

How are you running that?

[jiangjiongyu]

How are you running that?

I forgot to add running code.add main function.

    public static void main(String[] args) {
        // mock generate video
        String path = "xxxxxx";
        String saveDir =  path.concat("/data");
        long duration = 3 * 60 * 60 * 1000; // run long time
        long startTime = System.currentTimeMillis();
        while (System.currentTimeMillis() - startTime < duration) { // handle large number of files, and covert them to video
            try {
                File file = new File(saveDir + System.currentTimeMillis());
                if (!file.exists()) {
                    System.out.println(file.getCanonicalPath());
                    if (!file.mkdir()) {
                        System.out.println("Create failed:" + file.getName());
                        continue;
                    }
                }
                RecordingBean bean = new RecordingBean();
                bean.setBinaryFile(new File(path.concat("/a.h264")));
                FrameDataWriter writer = new FrameDataWriter(file.getCanonicalPath(), bean);
                THREAD_POOL.execute(writer);
                TimeUnit.MILLISECONDS.sleep(10 * 1000);
            } catch (Exception e) {
                System.out.println(e);
            }
        }
    }

[saudet]

Does it do the same thing if you use other codecs?

[jiangjiongyu]

Does it do the same thing if you use other codecs?

other codecs？Can you give a example?

[saudet]

Also since you're using H.264, please make sure you're using libx264, not OpenH264.