Hello world program access violations

Question

Hello world program access violations

JW 81

I create a new C++ console application, then enable Address Sanitizer and run, the output shows many read access violations and also a write access violation (ntdll.dll).

Why? Is this normal or am I missing something?

David Lowndes 4,726 Reputation points

2022-11-15T09:33:37.26+00:00

If I create a default C++ console application and set the Enable Address Sanitizer option, I'm not seeing any such output using the current latest VS2022 17.5.0 preview 1.0.
And if I introduce a problem that ASAN should detect, it does.
Which version of VS are you using, and are there any other compiler options you've changed from the default?
JW 81 Reputation points

2022-11-15T12:32:56.057+00:00

I'm using VS2022 Version 17.4.0.

All project settings are default, except ASAN (C/C++ -> General -> Enable Address Sanitizer).

I may have changed some of Visual Studio's general settings though (like Tools -> Options..., or Debug -> Windows -> Exception Settings), but it was a long time ago and I don't remember which ones.
David Lowndes 4,726 Reputation points

2022-11-15T12:49:00.873+00:00

Have you tried resetting all settings?
JW 81 Reputation points

2022-11-15T14:09:53.61+00:00

Thanks for the suggestion. I tried it now, then restarted Visual Studio and rebuilt the project, but exactly the same result in runtime. I also tried starting VS as admin, but it didn't help.

This happens for any C++ project when I enable ASAN. The output window is flooded with access violations.

It happens on my colleague's computer as well; he's also using version 17.4.0 (the latest non-preview version). He is using Windows 11, I'm using Windows 10.

Any other suggestions?
David Lowndes 4,726 Reputation points

2022-11-15T14:44:20.793+00:00

I don't have a 17.4 installation to check, but I know that I found ASAN impossible to live with in the very early versions with VS - though that was on real-world code in a shell extension, not a trivial console application.
David Lowndes 4,726 Reputation points

2022-11-15T14:46:01.197+00:00

I take it the trivial console project works fine?
Does ASAN correctly report a problem if you introduce one that it should find?
JW 81 Reputation points

2022-11-15T14:51:16.387+00:00

Yes to both. The program runs fine and prints as expected. ASAN shows a message if I introduce a memory bug.
David Lowndes 4,726 Reputation points

2022-11-15T14:55:52.27+00:00

If you're able to try the VS preview, see if that's OK for you,

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David Lowndes 4,726 Reputation points

2022-11-15T09:33:37.26+00:00

If I create a default C++ console application and set the Enable Address Sanitizer option, I'm not seeing any such output using the current latest VS2022 17.5.0 preview 1.0.
And if I introduce a problem that ASAN should detect, it does.
Which version of VS are you using, and are there any other compiler options you've changed from the default?
JW 81 Reputation points

2022-11-15T12:32:56.057+00:00

I'm using VS2022 Version 17.4.0.

All project settings are default, except ASAN (C/C++ -> General -> Enable Address Sanitizer).

I may have changed some of Visual Studio's general settings though (like Tools -> Options..., or Debug -> Windows -> Exception Settings), but it was a long time ago and I don't remember which ones.
David Lowndes 4,726 Reputation points

2022-11-15T12:49:00.873+00:00

Have you tried resetting all settings?
JW 81 Reputation points

2022-11-15T14:09:53.61+00:00

Thanks for the suggestion. I tried it now, then restarted Visual Studio and rebuilt the project, but exactly the same result in runtime. I also tried starting VS as admin, but it didn't help.

This happens for any C++ project when I enable ASAN. The output window is flooded with access violations.

It happens on my colleague's computer as well; he's also using version 17.4.0 (the latest non-preview version). He is using Windows 11, I'm using Windows 10.

Any other suggestions?
David Lowndes 4,726 Reputation points

2022-11-15T14:44:20.793+00:00

I don't have a 17.4 installation to check, but I know that I found ASAN impossible to live with in the very early versions with VS - though that was on real-world code in a shell extension, not a trivial console application.
David Lowndes 4,726 Reputation points

2022-11-15T14:46:01.197+00:00

I take it the trivial console project works fine?
Does ASAN correctly report a problem if you introduce one that it should find?
JW 81 Reputation points

2022-11-15T14:51:16.387+00:00

Yes to both. The program runs fine and prints as expected. ASAN shows a message if I introduce a memory bug.
David Lowndes 4,726 Reputation points

2022-11-15T14:55:52.27+00:00

If you're able to try the VS preview, see if that's OK for you,

Answer 1

Hi, @JW

The problem is normal. You don't need to worry about this.

Tested running the same project. The exceptions occur in vs2022 17.4.0, but not in preview.

Best regards,

Minxin Yu

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Hello world program access violations

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