SA does not handle signal handler frame in mixed jstack as following:
----------------- 1789 ----------------- "main" #1 prio=5 tid=0x00007f654c010000 nid=0x6fd runnable [0x00007f6551c0b000] java.lang.Thread.State: RUNNABLE JavaThread state: _thread_in_native 0x00007f6551c0e735 __GI_abort + 0x8b 0x00007f65511feb39 _ZN2os5abortEbPvPKv + 0x19 0x00007f6551427569 _ZN7VMError14report_and_dieEiPKcS1_P13__va_list_tagP6ThreadPhPvS7_S1_im + 0x579 0x00007f6551427deb _ZN7VMError14report_and_dieEP6ThreadjPhPvS3_PKcz + 0x8b 0x00007f6551427e1e _ZN7VMError14report_and_dieEP6ThreadjPhPvS3_ + 0x1e 0x00007f6551209950 JVM_handle_linux_signal + 0x1c0 0x00007f65511fd538 _ZL13signalHandleriP7siginfoPv + 0x38 0x00007f6551c27290 ???????? 0x00007f653400f890 * NativeSEGV.doSEGV() bci:0 (Interpreted frame) 0x00007f6534009c43 * NativeSEGV.main(java.lang.String[]) bci:76 line:37 (Interpreted frame) 0x00007f6534000849 <StubRoutines> 0x00007f6550e847e9 _ZN9JavaCalls11call_helperEP9JavaValueRK12methodHandleP17JavaCallArgumentsP6Thread + 0x3b9 0x00007f6550eff1ba _ZL17jni_invoke_staticP7JNIEnv_P9JavaValueP8_jobject11JNICallTypeP10_jmethodIDP18JNI_ArgumentPusherP6Thread.isra.65.constprop.193 + 0x1ba 0x00007f6550f01824 jni_CallStaticVoidMethod + 0x164 0x00007f6551e0582d JavaMain + 0xe4d 0x00007f6551c7f464 start_thread + 0x2e4 0x7f6551c27290 is a signal handler frame, and its caller is native frame. However jstack reports the caller is Java frame (`NativeSEGV.doSEGV()`). It should be like following: 0x00007fdbd170321a JVM_handle_linux_signal + 0x42a 0x00007fdbd267b290 <signal handler called> 0x00007fdbc7ecb3b1 Java_NativeSEGV_doSEGV + 0x18 0x00007fdbb67468ba * NativeSEGV.doSEGV() bci:0 (Interpreted frame) This is long standing bug (since JDK 9 at least). ------------- Commit messages: - 8374482: SA does not handle signal handler frame in mixed jstack Changes: https://git.openjdk.org/jdk/pull/29023/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29023&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8374482 Stats: 163 lines in 4 files changed: 153 ins; 0 del; 10 mod Patch: https://git.openjdk.org/jdk/pull/29023.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29023/head:pull/29023 PR: https://git.openjdk.org/jdk/pull/29023
