fix JVM core becase SIGQUIT

rasp/librasp/src/jvm.rs

@@ -4,7 +4,6 @@ use log::*;
 use regex::Regex;
 use std::process::Command;
 use std::fs;
-use std::thread;
 use std::time::Duration;
 use crate::async_command::run_async_process;
 use crate::process::ProcessInfo;

rasp/librasp/src/manager.rs

@@ -2,12 +2,11 @@ use std::collections::HashMap;
 use std::ffi::OsStr;
 use std::fs;
 use std::path::Path;
-use std::process::Command;
 
 use anyhow::{anyhow, Result, Result as AnyhowResult};
 use crossbeam::channel::Sender;
 use fs_extra::dir::{copy, create_all, CopyOptions};
-use fs_extra::file::{copy as file_copy, remove as file_remove, CopyOptions as FileCopyOptions};
+use fs_extra::file::{copy as file_copy, CopyOptions as FileCopyOptions};
 use libraspserver::proto::{PidMissingProbeConfig, ProbeConfigData};
 use log::*;
 

rasp/librasp/src/process.rs

@@ -319,6 +319,21 @@ impl ProcessInfo {
     }
 }
 
+pub fn count_uptime(start_time: f32) -> AnyhowResult<u64> {
+    let ticks = procfs::ticks_per_second()? as f32;
+    let boottime = procfs::boot_time_secs()?;
+    let seconds_since_boot = ((start_time / ticks) as i64) as u64;
+    let timestamp = Clock::now_since_epoch().as_secs();
+    let uptime = timestamp - seconds_since_boot - boottime;
+    if uptime <= 0 {
+        error!(
+            "uptime <=0: uptime: {} timestamp: {} seconds since boot: {} boot time: {}",
+            uptime, timestamp, seconds_since_boot, boottime
+        );
+    }
+    return Ok(uptime);
+}
+
 fn traverse_proc(pid: i32) -> AnyhowResult<Vec<i32>> {
     let mut pids = Vec::new();
     for entry in read_dir(format!("/proc/{}/root/proc", pid))? {

rasp/librasp/src/runtime.rs

@@ -2,6 +2,7 @@ use std::collections::HashMap;
 use std::ffi::OsString;
 use std::fmt::{self, Display, Formatter};
 use std::path::PathBuf;
+use std::time::Duration;
 
 use anyhow::{anyhow, Result};
 use log::*;
@@ -12,7 +13,7 @@ use crate::golang::golang_bin_inspect;
 use crate::jvm::vm_version;
 use crate::nodejs::nodejs_version;
 use crate::php::{inspect_phpfpm, inspect_phpfpm_version, inspect_phpfpm_zts};
-use crate::process::ProcessInfo;
+use crate::process::{ProcessInfo, count_uptime};
 use serde::{Deserialize, Serialize};
 
 const DEFAULT_JVM_FILTER_JSON_STR: &str = r#"{"exe": ["java"]}"#;
@@ -72,6 +73,14 @@ pub trait RuntimeInspect {
             };
 
         if  jvm_process_filter_check_reuslt {
+            // https://bugs.openjdk.org/browse/JDK-8292695
+            let uptime = count_uptime(process_info.start_time.unwrap()).unwrap_or(0);
+            if uptime > 0  && uptime < 5 {
+                let interval = 5 - uptime;
+                info!("JVM process {} just start, so sleep {} sec", process_info.pid, interval);
+                std::thread::sleep(Duration::from_secs(interval));
+            }
+
             let version = match vm_version(process_info.pid) {
                 Ok(ver) => {
                     if ver < 8 {