https://bugs.freedesktop.org/show_bug.cgi?id=73392
Priority: medium
Bug ID: 73392
Assignee: mesa-dev@lists.freedesktop.org
Summary: GLX context memory leak if context was bound to
drawable on thread exit
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: ibragimovri...@mail.ru
Hardware: All
Status: NEW
Version: 9.2
Component: GLX
Product: Mesa
glXDestroyContext leaks memory if context was bound and there was no
glXMakeCurrent call before thread termination.
Here is sample code for reproduction.
// gcc glXDestroyContext-memleak.c -std=gnu99 -lpthread -lGL -lX11
#include <pthread.h>
#include <GL/glx.h>
#include <unistd.h>
GLXContext glc;
GLXContext root_glc;
Display *dpy;
XVisualInfo *xvi;
void *thread_func1(void *p)
{
Window root_wnd = XDefaultRootWindow(dpy);
glc = glXCreateContext(dpy, xvi, NULL, GL_TRUE);
glXMakeCurrent(dpy, root_wnd, glc);
glXDestroyContext(dpy, glc);
return NULL;
}
int main(void) {
GLint att[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_DOUBLEBUFFER, None };
dpy = XOpenDisplay(NULL);
xvi = glXChooseVisual(dpy, 0, att);
for (int k = 0; k < 30000; k ++) {
pthread_t t;
pthread_create(&t, NULL, thread_func1, NULL);
pthread_join(t, NULL);
sleep(1);
}
return 0;
}
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