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vsg-dev / VulkanSceneGraph

Vulkan & C++17 based Scene Graph Project
http://www.vulkanscenegraph.org
MIT License
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segmentation falt (core dumped) #287

Closed zhangfq-chemistry closed 3 years ago

zhangfq-chemistry commented 3 years ago

vsg has been compiled and install successfully, while most of the examples under vsgExamples/build/bin cannot run with error: segmentation fault (core dumped). The command "ulimit -s 102400" also seems no use.

robertosfield commented 3 years ago

You are the first to report seg faults so there must be something specific about your system that is cause the problem, To figure out what it might be we'll need lots more information.

Could you provide details of the OS, Vulkan SDK, Vulkan drivers, hardware you are using?

Could you run inside a debugger to get a stack trace.

rolandhill commented 3 years ago

I've successfully used VSG on my desktop for some time now. A while ago I tried to use it on my laptop and couldn't get it to work because I kept getting seg faults. I meant to go back and sort it out but haven't had time to do it yet. I did wonder if it had anything to do with the laptop having both an integrated Intel graphics card and a dedicated NVidia card - just a guess. Does the machine you're using have both integrated and dedicated graphics cards?

Regards, Roland

On Fri, 11 Jun 2021 at 12:24, zhangfq-chemistry @.***> wrote:

vsg has been compiled and install successfully, while most of the examples under vsgExamples/build/bin cannot run with error: segmentation fault (core dumped). The command "ulimit -s 102400" also seems no use.

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robertosfield commented 3 years ago

Hi Roland,

On Fri, 11 Jun 2021 at 07:21, Roland Hill @.***> wrote:

I've successfully used VSG on my desktop for some time now. A while ago I tried to use it on my laptop and couldn't get it to work because I kept getting seg faults. I meant to go back and sort it out but haven't had time to do it yet. I did wonder if it had anything to do with the laptop having both an integrated Intel graphics card and a dedicated NVidia card - just a guess. Does the machine you're using have both integrated and dedicated graphics cards?

Last month I checked in improvements to the VSG's default device selection to better handle systems with integrated and dedicated graphics. It would be worth trying out the VSG on your laptop now.

A crash might be on the VSG side, but could well be or caused by the driver. Either way it would be good to get to the bottom of it. Even if Vulkan isn't supported we'd want an elegant failure, with an exception being thrown,

Robert.

rolandhill commented 3 years ago

Hi Robert,

It's been a long time since I tried and probably before you made those changes. I'll try and give it a go over the weekend and let you know.

Regards, Roland

On Fri, 11 Jun 2021 at 16:26, Robert Osfield @.***> wrote:

Hi Roland,

On Fri, 11 Jun 2021 at 07:21, Roland Hill @.***> wrote:

I've successfully used VSG on my desktop for some time now. A while ago I tried to use it on my laptop and couldn't get it to work because I kept getting seg faults. I meant to go back and sort it out but haven't had time to do it yet. I did wonder if it had anything to do with the laptop having both an integrated Intel graphics card and a dedicated NVidia card - just a guess. Does the machine you're using have both integrated and dedicated graphics cards?

Last month I checked in improvements to the VSG's default device selection to better handle systems with integrated and dedicated graphics. It would be worth trying out the VSG on your laptop now.

A crash might be on the VSG side, but could well be or caused by the driver. Either way it would be good to get to the bottom of it. Even if Vulkan isn't supported we'd want an elegant failure, with an exception being thrown,

Robert.

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robertosfield commented 3 years ago

@zhangfq-chemistry could you please answer the questions I've asked above, as there is nothing we can't recreate the issue, or investigate without further information.