Unknown error code 0xc0000225

I am writing test code using Google C++ Test Framework and I forgot to initialize a certain myObj object, This results in the following error.

unknown file: error: SEH exception with code 0xc0000005 thrown in the test body

Going through the corresponding code, it turns out that a method call of the form

is executed until myObj is initialized, i.e. its value is 0x00000000. Then somewhere deep in a third party library this error is thrown.

How can this happen? Why doesn’t it throw a null reference exception when the method is called?

Today we will talk about a rather difficult problem in the form of error 0xc0000225, which can occur during the login to the Windows operating system or during the installation process. It is worth noting that users of absolutely all versions of Windows OS can be affected by this error, i.e. starting from XP and ending with the “ten”.

As we have already indicated, error 0xc0000225 appears when you download or install Windows. Some users accidentally confuse this error with a blue screen of death, however, it is worth immediately answering: no, this is not a blue screen of death, but worrying about error 0xc0000225 is no less worth worrying about than about BSoD.

Causes of error 0xc0000225

There are several reasons for the appearance of the 0xc0000225 error, however, almost all of them are always associated with the hard drive on which your system is installed. Let’s see for what reasons error 0xc0000225 could occur.

In general, as you can see, error 0xc0000225 occurs in most cases due to problems with the hard drive, which, to be honest, is not the most pleasant news. However, you can’t just do nothing, right? In this article, we will discuss with you several methods that will definitely help you resolve the 0xc0000225 error on a particular operating system.

For a complete guide to creating an installation disk, you can visit the official Microsoft website. However, let’s look at a short list of steps that you need to follow to create it. Do the following:

This was a short list of steps to create a Windows installation disc, as well as entering the recovery environment. OK, do all the necessary preparations, and then proceed to the steps below. It should be noted that a rather long article awaits us, since fixing the 0xc0000225 error is extremely difficult.

I’m starting to use googlemock with googletest but getting an SEH exception that I can’t figure out.

Error message:

unknown file: error: SEH exception with code 0xc0000005 thrown in the test body.

I’ve read a few similar questions on SO and elsewhere, but haven’t found an answer to such a simple example yet.

i.e. this happens in my actual code, but I also reproduced the error in a very simple example below. I am building with MSVC2008.

code that reproduces the error:

my test console output:

I use my own main function like this:

I’m guessing I’m making a pretty basic mistake here, Can anyone see where I’m going wrong?
Thank you!

In this case, your program would try to calculate correct method address, using class
, dereference an invalid pointer and fail with access violation even if method itself is not using
pointer.
If not, the
unknown file: error: SEH exception with code 0xc0000005 thrown in the test body.

Table of contents

SEH exception with code 0xc0000005 thrown in the test body

A SEH (Structured Exception Handling) exception is not a C++-exception that can be handled using c++-language constructs (try-catch) but it is raised from windows itself and points to some fundamental flaw. S EH-exceptions are very annoying because they do not cause normal stack unwinding which can lead to unclosed files or not-unlocked mutexes that should normally cleared by the destructors of the owning object.
I have encountered SEH-exceptions when accessing memory that does not belong to the current process so I recommend looking at memory-related instructions in the constructor and destructor of CSig.
You can read about SEH, for instance, here

I ran into this very problem using GoogleTest with Visual Studio 2010. Our setup involves creating a library for the GoogleTest Frameworks, which is then linked against our individual Unit Tests. I recently updated the Frameworks support and recompiled it from scratch. After doing this, I encountered the exception described above.

After a bit of digging, I discovered that the ‘Struct Member Alignment’ setting was the culprit:

While the Frameworks project had the setting set to ‘default’, the corresponding Unit Test project had it configured to “1 Byte /Zp1”. Once I changed them to have the same alignment, the problem went away.

For me it appeared to be a null reference error. Some method was called on a nullptr and for reasons unclear to me it didn’t fail immediately but just started executing. The SEH error presumably occurred as soon as unallocated memory was accessed. So check for null pointers!

How can null reference result in SEH exception with code 0xc0000005?

Stepping through the corresponding code it appears that a method call of the form

is executed, while myObj is not initialized, i.e. its value is

0x00000000

. Then somewhere deep in a third party library this error is thrown.

How can this even happen? Why doesn’t it throw a null reference exception as soon as the method is called?

As it was rightfully pointed out in comments, calling a method from the uninitialized class pointer is an undefined behavior, so anything could happen, depending on the compiler implementation. However, it is easy to predict why in your case execution was semi-successful. The only difference between class (

__thiscall

) members and ordinal functions, is that they receive additional hidden argument, containing a pointer to the class instance (

this

). Microsoft C++ compiler passes

this

argument through

ecx/rcx

register, other compilers may use a different approach. However if your class method is not trying to dereference invalid

this

pointer, no exception will be thrown, and, depending on the method logic, your program could even continue execution without error. Things would be much different, if you try to call a virtual method. In this case, your program would try to calculate correct method address, using class

vtable

, dereference an invalid pointer and fail with access violation even if method itself is not using

this

pointer.

SEH exception when using googlemock

I am starting to use googlemock with googletest but am getting an SEH exception that I can’t figure out.

The error message is:

I have read some similar questions on SO and elsewhere but am yet to find an answer for such a simple example.

i.e. This is happening on my real code, but I’ve also reproduced the error on the very simple example below. I am building with MSVC2008.

code that reproduces the error:

my test output from the console:

I am guessing that I am making a pretty basic mistake here, Can anyone see where I am going wrong?
Thanks!

I think you could force gtest to don’t cloak the exact exception (what might be done using the code:

::testing::GTEST_FLAG(catch_exceptions) = false;

or the same from the command line)
And if then you use a debugger, you easily get the stack. Or even if you don’t, I expect *nix-like OS to write core file

I met the same problem when I compiled the gmock as

DLL

and linked it in another project.
After a lot of try, I found the reason is:

You have to compile the gmock and your project in the same configuration!

That means you have to compile the gmock in DEBUG(RELEASE) configuration, if you want to link it in the DEBUG(RELEASE) mode. If not, the

I hope my experience could help you, though you may encounter this problem in a different scene.

I was getting this error because I was dereferencing a null pointer.

I am novice to googlemock. My current project needs googlemock to use. I have learned from basics of gmock from google help site. But when I have tried to implement the same in my project it threw

SEH exception with code 0xc0000005

error.
My project has multiple threads, one of the thread call RUN_ALL_TESTS
The above code leads to

SEH exception

tools: VS2010, windows 7

Try to mock the function of a class

0xC0000005 is a “you accessed memory that doesn’t exist”. I can’t see exactly where in your code this happens right now. But that’s definitely what goes wrong. You may want to run with a debugger and see where it thinks it goes wrong.

The only point I’d supect to be the reason for a (most probably) NULL pointer access is

Usually when this is called from a

main()

function as intended, at least

argv

never would be NULL because the first argument always contains the executable name.

UPDATE:

Note my edit how

argc

is passed! Simply the

value

not the

address

!

Troubleshooting guide for error 0xc0000225

Restore Boot Record, Boot Sector, and Boot Configuration Data Store

So, let’s start dealing with error 0xc0000225. The main question is where to start? Considering that a corrupted Windows bootloader entry is a common cause for this error, it would be logical to start by trying to repair it. Luckily, you can easily pull this off thanks to a few commands that you need to run on the Command Prompt.

Given that you cannot access the operating system, you will have to open the Command Prompt in the recovery environment (Windows RE). To open the recovery environment, you need to boot through the Windows installation disc and then follow the steps below:

Once the Command Prompt opens in front of you, you are ready to start restoring the master boot record (MBR), boot sector, and boot configuration data store. Enter the following set of commands into the Command Prompt:

If the error 0xc0000225 was indeed caused by corrupted items, then the above commands will help you repair them. Ok, we tried to restore the elements that are necessary to boot the operating system. Let’s now check if this helped: restart your PC and try to enter Windows. If everything went smoothly, then congratulations, everything worked out for you and you were able to get rid of a headache for the whole day.

Restoring the database of installed devices

Well, such a tool as the Command Line comes to your aid again. That’s right, the Registry Editor can also be opened using the Command Prompt. So, use the above steps to get to the Command Prompt in the Windows Recovery Environment and then type regedit into it and press Enter.

One way or another, the Windows Registry Editor window will appear in front of you. As soon as the editor opens in front of you, go to the HKLMSystemMountedDevices section. Now pay attention to the right side of the editor window: in it you will find a bunch of different options, which is a database of installed devices for your current Windows configuration. You need to open the properties of each of these options and set their default values. When you’re done changing the settings, close the Windows Registry Editor, and then restart your computer.

If the values ​​in these parameters were really changed, which, by the way, could lead to the impossibility of booting the system from disk, then by setting them to default, you should have fixed the problem in the form of error 0xc0000225. Well, did you manage to overcome this annoying barrier? If not, then let’s move on and try other methods.

Changing the operating mode of the SATA controller

The next method on our list is to change the operating mode of the SATA hard drive controller. It is possible that your BIOS/UEFI settings have been changed for some reason, resulting in a change in the mode of operation of the SATA controller. It is likely that your hard drive has been set to AHCI or IDE mode. The latter is usually used for older media, since IDE is a fairly simple SATA mode that has low performance and limited capabilities. AHCI mode, in turn, is used more often on new HDDs and SSDs, can improve the performance of these media, and also has advanced functionality. There is also a RAID mode, but it is used to create large-scale volumes from a bunch of other media.

One way or another, error 0xc0000225 could have occurred due to a sharp change in the operating mode of the SATA controller. For example, your drive may have been running in IDE mode, and then it was changed to AHCI mode, which, of course, can cause a number of certain problems, such as those discussed in this article. Fortunately, the drive mode can be easily checked and even changed in the same BIOS / UEFI settings. However, each motherboard has its own version of BIOS or UEFI, so you will have to look for the SATA controller mode parameters on your own. However, there is nothing complicated here – you will succeed.

Using bad sector recovery software

OK, now let’s talk about the not-so-pleasant situation you’re obviously in. If none of the above helped, then you are probably faced with real bad sectors on the HDD, due to which it is now impossible to start the Windows operating system. What to do in this case?

Well, you can start with Check Disk, a system program that will scan your hard drive for file system and sector corruption. To use this program, you will again need to open the Command Prompt in the Windows Recovery Environment, which can be accessed using the installation disc.

After gaining access to the Command Prompt, you need to enter the command chkdsk /f /r into it and press Enter. You will be asked if you want to scan the disk the next time you restart your computer – click on Y to reboot and start the CHKDSK program. The process of scanning and repairing the disk can take quite a long time, so please be patient.

As soon as CHKDSK finishes its work, you will see a summary where you can look at the result of the scan: there you can see if there are bad sectors on your disk or not. Reboot your computer after applying CHKDSK and check if error 0xc0000225 has been resolved.

If you are lucky, the system program will be able to fix the situation with your HDD. However, as practice shows, although Check Disk is a useful tool, it does not solve such problems so often. If you realized that there are so-called bad blocks on the disk and Check Disk could not do anything with them, then you will have to resort to third-party software that can work at a low level.

We recommend that you try using a program such as Victoria HDD. With this software, you can properly check your hard drive for bad blocks, and also try to fix them. However, the success of HDD recovery will already depend on its condition.

As we have repeatedly noted in other materials covering disk problems, using the Victoria HDD program is not so simple. Before using it in practice, you need to carefully read the manual for its use. Such manuals can be found in multiple numbers all over the Internet. As soon as you are sure that you have learned everything you need, proceed. You may be able to fix the bad blocks and get rid of the 0xc0000225 error. As already mentioned, it all depends on the state of your disk.

Other solutions

I think you can make gtest not throw the exact exception (which can be done with code like

or from the command line)
And if you then use the debugger, you can easily get the stack. Or even if you don’t, I expect the *nix-like OS to write the kernel file to parse it later.

I got this error because I was dereferencing a null pointer.

Solution

I met the same problem when I compiled gmock as a DLL and linked it in another project.
After a lot of trying, I found the reason:

You must compile gmock and your project in the same configuration!

This means that you must compile gmock in DEBUG (RELEASE) configuration if you want to link it in DEBUG (RELEASE) mode. If not, then

unknown file: error: SEH exception with code 0xc0000005 thrown in test body.

I hope my experience can help you, although you may encounter this problem in another scene.

Похожее:

Руководство по команде setblock — Официальная Minecraft Wiki «Изменение размера шрифта для устройств Nokia по сравнению с изменением общего масштаба шрифта приложения на Android с использованием Configuration.fontScale»? Управление VirtualBox из командной строки | Информационный портал К2® Как «приручить» консоль, или 5 шагов к жизни с командной строкой / Хабр