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Add regression test for multiple engine reloads #704

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merged 7 commits into from
Aug 18, 2022

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mjcarroll
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@mjcarroll mjcarroll commented Aug 11, 2022

🦟 Bug fix

Summary

Similar to previous crashes we have had, we weren't appropriately cleaning up resources in our rendering objects.

I uncovered this while testing gz-sensors7, as it wasn't revealed by tests here.

As a result, I have added a regression test that will attempt to load and unload a rendering engine multiple times while also instantiating sensors. If everything is cleaned up correctly, this test runs without any segfaults.

A have also included fixes for the DepthCamera and GpuRays sensor that were detected via this test.

Checklist

  • Signed all commits for DCO
  • Added tests
  • Updated documentation (as needed)
  • Updated migration guide (as needed)
  • Consider updating Python bindings (if the library has them)
  • codecheck passed (See contributing)
  • All tests passed (See test coverage)
  • While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

@mjcarroll
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I also removed a few members that I discovered were unused in my debugging.

@github-actions github-actions bot added the 🌱 garden Ignition Garden label Aug 11, 2022
@osrf-triage osrf-triage added this to Inbox in Core development Aug 11, 2022
@chapulina chapulina added the bug Something isn't working label Aug 11, 2022
@chapulina chapulina moved this from Inbox to In review in Core development Aug 11, 2022
@mjcarroll mjcarroll changed the title Fix removing viewport in Ogre DepthCamera Add regression test for multiple engine reloads Aug 12, 2022
Signed-off-by: Michael Carroll <michael@openrobotics.org>
Signed-off-by: Michael Carroll <michael@openrobotics.org>
Signed-off-by: Michael Carroll <michael@openrobotics.org>
@mjcarroll mjcarroll force-pushed the mjcarroll/ogre_depth_camera_segfault branch from f604212 to 88421a4 Compare August 12, 2022 02:05
Signed-off-by: Michael Carroll <michael@openrobotics.org>
@mjcarroll
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I have been unable to reproduce INTEGRATION_depth_camera_ogre_gl3plus locally, but it seems to fail consistently across our platforms. I will try it on macos and see what happens.

@mjcarroll
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@darksylinc There seems to be something specifically wrong with the OGRE 1 depth camera. I have valgrind/gdb for a bit and I'm kind of stumped. I think it's a viewport not getting disconnected correctly?

If you have a quick guess I can try to track down, it would be appreciated.

EXPORT GZ_ENGINE=ogre
EXPORT GZ_ENGINE_BACKEND=gl3plus
gdb --args ./bin/INTEGRATION_depth_camera --gtest_filter="*DepthCameraBoxes"
#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=140737320557760) at ./nptl/pthread_kill.c:44
#1  __pthread_kill_internal (signo=6, threadid=140737320557760) at ./nptl/pthread_kill.c:78
#2  __GI___pthread_kill (threadid=140737320557760, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3  0x00007ffff7902476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#4  0x00007ffff78e87f3 in __GI_abort () at ./stdlib/abort.c:79
#5  0x00007ffff79496f6 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ffff7a9bb8c "%s\n") at ../sysdeps/posix/libc_fatal.c:155
#6  0x00007ffff7960d7c in malloc_printerr (str=str@entry=0x7ffff7a9e5d8 "malloc_consolidate(): unaligned fastbin chunk detected") at ./malloc/malloc.c:5664
#7  0x00007ffff7961a0c in malloc_consolidate (av=av@entry=0x7ffff7ad9c80 <main_arena>) at ./malloc/malloc.c:4750
#8  0x00007ffff7962f20 in _int_free (av=0x7ffff7ad9c80 <main_arena>, p=0x5555565bb1b0, have_lock=<optimized out>) at ./malloc/malloc.c:4674
#9  0x00007ffff79654d3 in __GI___libc_free (mem=<optimized out>) at ./malloc/malloc.c:3391
#10 0x00007ffff2dda6e5 in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.470.141.03
#11 0x00007ffff2abdac8 in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.470.141.03
#12 0x00007ffff2f094dc in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.470.141.03
#13 0x00007ffff2bb05b0 in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.470.141.03
#14 0x00007ffff2f0af78 in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.470.141.03
#15 0x00007ffff2b79113 in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.470.141.03
#16 0x00007ffff1804b4d in Ogre::GLTexture::freeInternalResourcesImpl() () from /usr/lib/x86_64-linux-gnu/OGRE-1.9.0/RenderSystem_GL.so
#17 0x00007ffff5abc11d in Ogre::Texture::unloadImpl() () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#18 0x00007ffff5a00c48 in Ogre::Resource::unload() () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#19 0x00007ffff17fefed in Ogre::GLTexture::~GLTexture() () from /usr/lib/x86_64-linux-gnu/OGRE-1.9.0/RenderSystem_GL.so
#20 0x00007ffff17ff06d in Ogre::GLTexture::~GLTexture() () from /usr/lib/x86_64-linux-gnu/OGRE-1.9.0/RenderSystem_GL.so
#21 0x00007ffff58de3a9 in ?? () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#22 0x00007ffff5a8da81 in Ogre::ShadowTextureManager::clearUnused() () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#23 0x00007ffff5a41da1 in Ogre::SceneManager::destroyShadowTextures() () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#24 0x00007ffff5a269a7 in Ogre::SceneManager::~SceneManager() () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#25 0x00007ffff13d210b in ?? () from /usr/lib/x86_64-linux-gnu/OGRE-1.9.0/Plugin_OctreeSceneManager.so
#26 0x00007ffff5a4c860 in Ogre::SceneManagerEnumerator::removeFactory(Ogre::SceneManagerFactory*) () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#27 0x00007ffff5a21e0e in Ogre::Root::shutdownPlugins() () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0
#28 0x00007ffff5a1d21a in Ogre::Root::shutdown() () from /lib/x86_64-linux-gnu/libOgreMain.so.1.9.0

Valgrind seems a bit more interesting:

==1799311== Invalid write of size 1
==1799311==    at 0x4B46E4D: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.30)
==1799311==    by 0x6E470B1: assign (basic_string.h:1387)
==1799311==    by 0x6E470B1: operator= (basic_string.h:681)
==1799311==    by 0x6E470B1: setMaterialScheme (OgreViewport.h:276)
==1799311==    by 0x6E470B1: gz::rendering::v7::OgreRTShaderSystem::DetachViewport(Ogre::Viewport*, std::shared_ptr<gz::rendering::v7::OgreScene>) (OgreRTShaderSystem.cc:287)
==1799311==    by 0x6E58FF7: gz::rendering::v7::OgreRenderTarget::~OgreRenderTarget() (OgreRenderTarget.cc:64)
==1799311==    by 0x6E598BE: gz::rendering::v7::OgreRenderTexture::~OgreRenderTexture() (OgreRenderTarget.cc:310)
==1799311==    by 0x6E5994C: gz::rendering::v7::OgreRenderTexture::~OgreRenderTexture() (OgreRenderTarget.cc:310)
==1799311==    by 0x124321: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() (shared_ptr_base.h:168)
==1799311==    by 0x6DD88BE: ~__shared_count (shared_ptr_base.h:705)
==1799311==    by 0x6DD88BE: ~__shared_ptr (shared_ptr_base.h:1154)
==1799311==    by 0x6DD88BE: ~shared_ptr (shared_ptr.h:122)
==1799311==    by 0x6DD88BE: ~OgreDepthCameraPrivate (OgreDepthCamera.cc:31)
==1799311==    by 0x6DD88BE: operator() (unique_ptr.h:85)
==1799311==    by 0x6DD88BE: operator() (unique_ptr.h:79)
==1799311==    by 0x6DD88BE: ~unique_ptr (unique_ptr.h:361)
==1799311==    by 0x6DD88BE: gz::rendering::v7::OgreDepthCamera::~OgreDepthCamera() (OgreDepthCamera.cc:87)
==1799311==    by 0x6DD8A5C: gz::rendering::v7::OgreDepthCamera::~OgreDepthCamera() (OgreDepthCamera.cc:87)
==1799311==    by 0x6DB8BBF: _M_release (shared_ptr_base.h:168)
==1799311==    by 0x6DB8BBF: ~__shared_count (shared_ptr_base.h:705)
==1799311==    by 0x6DB8BBF: ~__shared_ptr (shared_ptr_base.h:1154)
==1799311==    by 0x6DB8BBF: ~shared_ptr (shared_ptr.h:122)
==1799311==    by 0x6DB8BBF: gz::rendering::v7::BaseNode<gz::rendering::v7::OgreObject>::RemoveChildren() (BaseNode.hh:302)
==1799311==    by 0x48B9805: gz::rendering::v7::BaseScene::Clear() (BaseScene.cc:1423)
==1799311==    by 0x48AF6B0: gz::rendering::v7::BaseScene::Destroy() (BaseScene.cc:1434)
==1799311==    by 0x6E5D62C: gz::rendering::v7::OgreScene::Destroy() (OgreScene.cc:300)
==1799311==  Address 0x6b7aef5 is 5 bytes inside a block of size 34 free'd
==1799311==    at 0x484BB6F: operator delete(void*, unsigned long) (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==1799311==    by 0x734F21C: Ogre::Viewport::~Viewport() (in /usr/lib/x86_64-linux-gnu/libOgreMain.so.1.9.0)
==1799311==    by 0x7279354: Ogre::RenderTarget::removeAllViewports() (in /usr/lib/x86_64-linux-gnu/libOgreMain.so.1.9.0)
==1799311==    by 0x6DD841E: gz::rendering::v7::OgreDepthCamera::Destroy() (OgreDepthCamera.cc:117)
==1799311==    by 0x6E2F937: gz::rendering::v7::BaseStore<gz::rendering::v7::Sensor, gz::rendering::v7::OgreSensor>::DestroyImpl(std::_Rb_tree_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<gz::rendering::v7::OgreSensor> > >) (BaseStorage.hh:956)
==1799311==    by 0x6E29B39: gz::rendering::v7::BaseStore<gz::rendering::v7::Sensor, gz::rendering::v7::OgreSensor>::DestroyAll() (BaseStorage.hh:734)
==1799311==    by 0x48BF0BD: gz::rendering::v7::BaseCompositeStore<gz::rendering::v7::Node>::DestroyAll() (BaseStorage.hh:1216)
==1799311==    by 0x48B97D3: DestroyNodes (BaseScene.cc:333)
==1799311==    by 0x48B97D3: gz::rendering::v7::BaseScene::Clear() (BaseScene.cc:1419)
==1799311==    by 0x48AF6B0: gz::rendering::v7::BaseScene::Destroy() (BaseScene.cc:1434)
==1799311==    by 0x6E5D62C: gz::rendering::v7::OgreScene::Destroy() (OgreScene.cc:300)
==1799311==    by 0x6E2E890: gz::rendering::v7::BaseStore<gz::rendering::v7::Scene, gz::rendering::v7::OgreScene>::DestroyImpl(std::_Rb_tree_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<gz::rendering::v7::OgreScene> > >) (BaseStorage.hh:956)
==1799311==    by 0x48ADCEF: gz::rendering::v7::BaseRenderEngine::DestroyScene(std::shared_ptr<gz::rendering::v7::Scene>) (BaseRenderEngine.cc:163)

@mjcarroll
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Actually, this is a better valgrind trace (without some of my modifications/checks)

==1807158== Invalid write of size 2
==1807158==    at 0x48529E3: memmove (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==1807158==    by 0x4B46EAE: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.30)
==1807158==    by 0x6E470B1: assign (basic_string.h:1387)
==1807158==    by 0x6E470B1: operator= (basic_string.h:681)
==1807158==    by 0x6E470B1: setMaterialScheme (OgreViewport.h:276)
==1807158==    by 0x6E470B1: gz::rendering::v7::OgreRTShaderSystem::DetachViewport(Ogre::Viewport*, std::shared_ptr<gz::rendering::v7::OgreScene>) (OgreRTShaderSystem.cc:287)
==1807158==    by 0x6E58FA7: gz::rendering::v7::OgreRenderTarget::~OgreRenderTarget() (OgreRenderTarget.cc:66)
==1807158==    by 0x6E5986E: gz::rendering::v7::OgreRenderTexture::~OgreRenderTexture() (OgreRenderTarget.cc:312)
==1807158==    by 0x6E598FC: gz::rendering::v7::OgreRenderTexture::~OgreRenderTexture() (OgreRenderTarget.cc:312)
==1807158==    by 0x124321: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() (shared_ptr_base.h:168)
==1807158==    by 0x6DD88BE: ~__shared_count (shared_ptr_base.h:705)
==1807158==    by 0x6DD88BE: ~__shared_ptr (shared_ptr_base.h:1154)
==1807158==    by 0x6DD88BE: ~shared_ptr (shared_ptr.h:122)
==1807158==    by 0x6DD88BE: ~OgreDepthCameraPrivate (OgreDepthCamera.cc:31)
==1807158==    by 0x6DD88BE: operator() (unique_ptr.h:85)
==1807158==    by 0x6DD88BE: operator() (unique_ptr.h:79)
==1807158==    by 0x6DD88BE: ~unique_ptr (unique_ptr.h:361)
==1807158==    by 0x6DD88BE: gz::rendering::v7::OgreDepthCamera::~OgreDepthCamera() (OgreDepthCamera.cc:87)
==1807158==    by 0x6DD8A5C: gz::rendering::v7::OgreDepthCamera::~OgreDepthCamera() (OgreDepthCamera.cc:87)
==1807158==    by 0x6DB8BBF: _M_release (shared_ptr_base.h:168)
==1807158==    by 0x6DB8BBF: ~__shared_count (shared_ptr_base.h:705)
==1807158==    by 0x6DB8BBF: ~__shared_ptr (shared_ptr_base.h:1154)
==1807158==    by 0x6DB8BBF: ~shared_ptr (shared_ptr.h:122)
==1807158==    by 0x6DB8BBF: gz::rendering::v7::BaseNode<gz::rendering::v7::OgreObject>::RemoveChildren() (BaseNode.hh:302)
==1807158==    by 0x48B9805: gz::rendering::v7::BaseScene::Clear() (BaseScene.cc:1423)
==1807158==    by 0x48AF6B0: gz::rendering::v7::BaseScene::Destroy() (BaseScene.cc:1434)
==1807158==  Address 0xc697c60 is 0 bytes inside a block of size 34 free'd
==1807158==    at 0x484BB6F: operator delete(void*, unsigned long) (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==1807158==    by 0x734F21C: Ogre::Viewport::~Viewport() (in /usr/lib/x86_64-linux-gnu/libOgreMain.so.1.9.0)
==1807158==    by 0x7279354: Ogre::RenderTarget::removeAllViewports() (in /usr/lib/x86_64-linux-gnu/libOgreMain.so.1.9.0)
==1807158==    by 0x6DD841E: gz::rendering::v7::OgreDepthCamera::Destroy() (OgreDepthCamera.cc:117)
==1807158==    by 0x6E2F937: gz::rendering::v7::BaseStore<gz::rendering::v7::Sensor, gz::rendering::v7::OgreSensor>::DestroyImpl(std::_Rb_tree_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<gz::rendering::v7::OgreSensor> > >) (BaseStorage.hh:956)
==1807158==    by 0x6E29B39: gz::rendering::v7::BaseStore<gz::rendering::v7::Sensor, gz::rendering::v7::OgreSensor>::DestroyAll() (BaseStorage.hh:734)
==1807158==    by 0x48BF0BD: gz::rendering::v7::BaseCompositeStore<gz::rendering::v7::Node>::DestroyAll() (BaseStorage.hh:1216)
==1807158==    by 0x48B97D3: DestroyNodes (BaseScene.cc:333)
==1807158==    by 0x48B97D3: gz::rendering::v7::BaseScene::Clear() (BaseScene.cc:1419)
==1807158==    by 0x48AF6B0: gz::rendering::v7::BaseScene::Destroy() (BaseScene.cc:1434)
==1807158==    by 0x6E5D5DC: gz::rendering::v7::OgreScene::Destroy() (OgreScene.cc:300)
==1807158==    by 0x6E2E890: gz::rendering::v7::BaseStore<gz::rendering::v7::Scene, gz::rendering::v7::OgreScene>::DestroyImpl(std::_Rb_tree_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<gz::rendering::v7::OgreScene> > >) (BaseStorage.hh:956)
==1807158==    by 0x48ADCEF: gz::rendering::v7::BaseRenderEngine::DestroyScene(std::shared_ptr<gz::rendering::v7::Scene>) (BaseRenderEngine.cc:163)

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Didn't I submit a PR to fix similar issues recently? I can't find it!

@darksylinc
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Ahhh it wasn't a PR

It was a patch: #679 (comment)

I suspect the other problems have similar solutions.

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darksylinc commented Aug 12, 2022

To be more specific this part was super important:

  if (this->dataPtr->thermalInstance)
  {
    // Do not leave a reference to this->dataPtr->thermalMaterial
    Ogre::MaterialPtr nullMaterial;
    this->dataPtr->thermalInstance->getTechnique()
      ->getOutputTargetPass()
      ->getPass(0)
      ->setMaterial(nullMaterial);
  }

Because otherwise a texture would linger in a material that still exists. We need to unset the texture from that material. That material was used by the compositor.

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@mjcarroll
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To repro all this I need to checkout https://github.com/gazebosim/gz-rendering/tree/mjcarroll/ogre_depth_camera_segfault ?

That is all that is necessary. I attempted to duplicate the patch from the thermal and wide angle cameras, but this one doesn't use the same structure to the texture/material/compositor

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darksylinc commented Aug 12, 2022

Valgrind is indeed finding something wrong on Gazebo side.

~OgreRenderTarget() calls DetachViewport but this has already been done in OgreRenderTexture::DestroyTarget and there are no checks either (that the Viewport is a valid ptr).

This stray DetachViewport call sounds like an accidental left over from either a refactor or a git merge. I'm still looking into it.

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darksylinc commented Aug 12, 2022

This patch fixes INTEGRATION_depth_camera:

diff --git a/ogre/src/OgreDepthCamera.cc b/ogre/src/OgreDepthCamera.cc
index 0dd31cce..b6139696 100644
--- a/ogre/src/OgreDepthCamera.cc
+++ b/ogre/src/OgreDepthCamera.cc
@@ -109,12 +109,14 @@ void OgreDepthCamera::Destroy()
 
   if (this->dataPtr->pcdTexture)
   {
-    this->dataPtr->pcdTexture->RenderTarget()->removeAllViewports();
+    this->dataPtr->pcdTexture->Destroy();
+    this->dataPtr->pcdTexture.reset();
   }
 
   if (this->dataPtr->colorTexture)
   {
-    this->dataPtr->colorTexture->RenderTarget()->removeAllViewports();
+    this->dataPtr->colorTexture->Destroy();
+    this->dataPtr->colorTexture.reset();
   }
 
   if (!this->ogreCamera || !this->scene->IsInitialized())
diff --git a/ogre/src/OgreRenderTarget.cc b/ogre/src/OgreRenderTarget.cc
index d7ed64af..c1f02a81 100644
--- a/ogre/src/OgreRenderTarget.cc
+++ b/ogre/src/OgreRenderTarget.cc
@@ -63,8 +63,7 @@ OgreRenderTarget::~OgreRenderTarget()
 {
   // TODO(anyone): clean up check null
 
-  OgreRTShaderSystem::Instance()->DetachViewport(this->ogreViewport,
-      this->scene);
+  GZ_ASSERT(this->ogreViewport == nullptr, "DestroyTarget not called!");
 }
 
 //////////////////////////////////////////////////
@@ -339,6 +338,8 @@ void OgreRenderTexture::DestroyTarget()
   if (nullptr == this->ogreTexture)
     return;
 
+  this->materialApplicator.reset();
+
   OgreRTShaderSystem::Instance()->DetachViewport(this->ogreViewport,
       this->scene);
 
@@ -351,6 +352,7 @@ void OgreRenderTexture::DestroyTarget()
   auto engine = OgreRenderEngine::Instance();
   engine->OgreRoot()->getRenderSystem()->_cleanupDepthBuffers(false);
 
+  this->ogreViewport = nullptr;
   this->ogreTexture = nullptr;
 }

Edit: The patches causes other tests to fail because they're not calling renderTarget->Destroy();

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darksylinc commented Aug 12, 2022

OK here goes another attempt. Nothing crashes anymore, INTEGRATION_gpu_rays_ogre_gl3plus and INTEGRATION_lidar_visual_ogre_gl3plus fail; but they don't crash:

diff --git a/ogre/src/OgreCamera.cc b/ogre/src/OgreCamera.cc
index fafc217a..76ec9469 100644
--- a/ogre/src/OgreCamera.cc
+++ b/ogre/src/OgreCamera.cc
@@ -44,6 +44,12 @@ void OgreCamera::Destroy()
   if (!this->ogreCamera)
     return;
 
+  if (this->renderTexture)
+  {
+    this->renderTexture->Destroy();
+    this->renderTexture = nullptr;
+  }
+
   Ogre::SceneManager *ogreSceneManager;
   ogreSceneManager = this->scene->OgreSceneManager();
   if (ogreSceneManager == nullptr)
diff --git a/ogre/src/OgreDepthCamera.cc b/ogre/src/OgreDepthCamera.cc
index 0dd31cce..b6139696 100644
--- a/ogre/src/OgreDepthCamera.cc
+++ b/ogre/src/OgreDepthCamera.cc
@@ -109,12 +109,14 @@ void OgreDepthCamera::Destroy()
 
   if (this->dataPtr->pcdTexture)
   {
-    this->dataPtr->pcdTexture->RenderTarget()->removeAllViewports();
+    this->dataPtr->pcdTexture->Destroy();
+    this->dataPtr->pcdTexture.reset();
   }
 
   if (this->dataPtr->colorTexture)
   {
-    this->dataPtr->colorTexture->RenderTarget()->removeAllViewports();
+    this->dataPtr->colorTexture->Destroy();
+    this->dataPtr->colorTexture.reset();
   }
 
   if (!this->ogreCamera || !this->scene->IsInitialized())
diff --git a/ogre/src/OgreRenderTarget.cc b/ogre/src/OgreRenderTarget.cc
index d7ed64af..a170e52a 100644
--- a/ogre/src/OgreRenderTarget.cc
+++ b/ogre/src/OgreRenderTarget.cc
@@ -63,8 +63,7 @@ OgreRenderTarget::~OgreRenderTarget()
 {
   // TODO(anyone): clean up check null
 
-  OgreRTShaderSystem::Instance()->DetachViewport(this->ogreViewport,
-      this->scene);
+  GZ_ASSERT(this->ogreViewport == nullptr, "Destroy() not called!");
 }
 
 //////////////////////////////////////////////////
@@ -339,6 +338,8 @@ void OgreRenderTexture::DestroyTarget()
   if (nullptr == this->ogreTexture)
     return;
 
+  this->materialApplicator.reset();
+
   OgreRTShaderSystem::Instance()->DetachViewport(this->ogreViewport,
       this->scene);
 
@@ -351,6 +352,7 @@ void OgreRenderTexture::DestroyTarget()
   auto engine = OgreRenderEngine::Instance();
   engine->OgreRoot()->getRenderSystem()->_cleanupDepthBuffers(false);
 
+  this->ogreViewport = nullptr;
   this->ogreTexture = nullptr;
 }
 
diff --git a/ogre/src/OgreThermalCamera.cc b/ogre/src/OgreThermalCamera.cc
index 508c267c..19be0544 100644
--- a/ogre/src/OgreThermalCamera.cc
+++ b/ogre/src/OgreThermalCamera.cc
@@ -291,6 +291,12 @@ void OgreThermalCamera::Destroy()
     this->dataPtr->thermalImage = nullptr;
   }
 
+  if (this->dataPtr->thermalTexture)
+  {
+    this->dataPtr->thermalTexture->Destroy();
+    this->dataPtr->thermalTexture = nullptr;
+  }
+
   if (!this->ogreCamera || !this->scene->IsInitialized())
     return;
 
diff --git a/ogre/src/OgreWideAngleCamera.cc b/ogre/src/OgreWideAngleCamera.cc
index 860dd2c1..856e244e 100644
--- a/ogre/src/OgreWideAngleCamera.cc
+++ b/ogre/src/OgreWideAngleCamera.cc
@@ -156,6 +156,12 @@ void OgreWideAngleCamera::Destroy()
     this->dataPtr->wideAngleImage = nullptr;
   }
 
+  if (this->dataPtr->wideAngleTexture)
+  {
+    this->dataPtr->wideAngleTexture->Destroy();
+    this->dataPtr->wideAngleTexture = nullptr;
+  }
+
   for (unsigned int i = 0u; i < this->dataPtr->kEnvCameraCount; ++i)
   {
     if (this->dataPtr->envRenderTargets[i])

Co-authored-by: Matias N. Goldberg <dark_sylinc@yahoo.com.ar>
Signed-off-by: Michael Carroll <michael@openrobotics.org>
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codecov bot commented Aug 12, 2022

Codecov Report

❗ No coverage uploaded for pull request base (gz-rendering7@305f57b). Click here to learn what that means.
The diff coverage is n/a.

❗ Current head 3951589 differs from pull request most recent head 1bfcde2. Consider uploading reports for the commit 1bfcde2 to get more accurate results

@@               Coverage Diff                @@
##             gz-rendering7     #704   +/-   ##
================================================
  Coverage                 ?   74.18%           
================================================
  Files                    ?      159           
  Lines                    ?    14370           
  Branches                 ?        0           
================================================
  Hits                     ?    10661           
  Misses                   ?     3709           
  Partials                 ?        0           

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Signed-off-by: Michael Carroll <michael@openrobotics.org>
@mjcarroll mjcarroll force-pushed the mjcarroll/ogre_depth_camera_segfault branch from 8425e98 to 845480d Compare August 16, 2022 21:21
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the new test passes for me on macos and Focal

@@ -0,0 +1,241 @@
/*
* Copyright (C) 2017 Open Source Robotics Foundation
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2022

@mjcarroll
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@osrf-jenkins retest this please

@mjcarroll mjcarroll merged commit efc05f9 into gz-rendering7 Aug 18, 2022
Core development automation moved this from In review to Done Aug 18, 2022
@mjcarroll mjcarroll deleted the mjcarroll/ogre_depth_camera_segfault branch August 18, 2022 13:07
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