Valgrind和Java [英] Valgrind and Java

问题描述

我想使用Valgrind 3.7.0在我的Java本机代码中查找内存泄漏。我正在使用jdk1.6.0._29。

I want to use Valgrind 3.7.0 to find memory leaks in my Java native code. I'm using jdk1.6.0._29.

为此，我必须设置--trace-children = yes标志。设置该标志，我不再可以在任何java应用程序上运行valgrind，甚至可以执行以下命令：

To do that, I have to set the --trace-children=yes flag. Setting that flag, I no longer can run valgrind on any java application, even a command like:

valgrind --trace-children=yes --smc-check=all java -version

将收到错误消息：

   Error occurred during initialization of VM
   Unknown x64 processor: SSE2 not supported

我看过这个链接： https://bugs.kde.org/show_bug.cgi?id=249943 ，但没用。

I've seen this link: https://bugs.kde.org/show_bug.cgi?id=249943, but it was not useful.

运行程序没有Valgrind或没有--trace-children标志是好的。

Running the program without Valgrind or without the --trace-children flag is fine.

有没有人知道我能做什么？

Does anyone has any idea on what I can do?

推荐答案

您必须禁用JIT才能在valgrind下运行JVM，如下所示：

You must disable JIT to run the JVM under valgrind, like so:

valgrind java -Djava.compiler=NONE ...

此外，如果您最终使用生成抑制（和你可能会！），生成的抑制中调用堆栈的深度可能存在问题，在JVM下运行时更有可能发生。

Also, if you end up using generated suppressions (and you most likely will!), there can be a problem with the depth of the call stacks in the generated suppressions, which is more likely to occur when running under the JVM.

在valgrind的最新版本中，生成的抑制可以包含比valgrind / memcheck本身可以处理的更深的调用堆栈。这个问题的症状是valgrind意外终止，消息堆栈跟踪中的调用者太多。

In recent versions of valgrind, generated suppressions can contain deeper call stacks than can be processed by valgrind/memcheck itself. The symptom of this problem is that valgrind terminates unexpectedly with the message "too many callers in stack trace".

这个问题很容易解决：在构建valgrind之前，编辑文件coregrind / m_errormgr.c并将#define中的硬编码值更改为更大的值（我使用99）：

This problem is easily fixed: before building valgrind, edit the file coregrind/m_errormgr.c and change the hard-coded value in the #define to a larger value (I use 99):

/ *上下文中的最大调用者数抑制。 * /

/* Max number of callers for context in a suppression. */

 #define VG_MAX_SUPP_CALLERS  99

然后根据文档构建并安装valgrind。

Then build and install valgrind as per the docs.

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