Creating a Stable Buildroot Linux Image for v86

[cemalgnlts]

Hi,

I'm trying to build a small linux image with Buildroot, some of the code comes from humphd/browser-vm and some from the SkiffOS project.

In addition I am adding the pre-built nodejs binary. fs9p is mounted in the /root folder.

I run the following code 10 times (That way it probably runs faster each time with the cache and I can minimize it):

node /opt/now/hello.js > /dev/null

On call 7th I get the following error:

[7/10] Node initializing...node:internal/fs/utils:347
    throw err;
    ^

- Error: ENOENT: no such file or directory, lstat '5opt'
    at Object.realpathSync (node:fs:2533:7)
    at toRealPath (node:internal/modules/cjs/loader:466:13)
    at Function.Module._findPath (node:internal/modules/cjs/loader:622:22)
    at resolveMainPath (node:internal/modules/run_main:19:25)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:75:24)
    at node:internal/main/run_main_module:22:47 {
  errno: -2,
  syscall: 'lstat',
  code: 'ENOENT',
-  path: '5opt'
}

The problem here is that it converts the /opt folder to 5opt. If I work in the /root folder it now gives this error:

Error: ENOENT: no such file or directory, lstat 'uroot'
path: 'uroot'

Now it also recognizes the /root folder as uroot. This problem is only on the nodejs side, nothing has changed on the linux command line. I don't know why it detects path names differently. And this only happens after the 7th run, first time no problem.

The config I used for Buildroot: cemalgnlts/now-linux-build

[copy]

Could you upload the built image file for me to reproduce (including the contents of the hello.js script)?

[cemalgnlts]

Of course I build the iso file using CircleCI (similar to GitHub actions).

ISO file: linux.iso.
State file: v86state.bin.

This problem does not occur every time. This problem occurred again on my last attempt, so I saved it by saying Save State. On the copy.sh/v86 page, go to Setup and initialize 512MB of space, press Start Emulation then install state.

When the boot process is finished, you can run the following command:

. /opt/now/boot-node.sh

You can run the node like this to test it:

node /opt/now/hello.js

[cemalgnlts]

Now that I have figured out how to see the error, after saying Load State, call the following commands in order:

npm --version

You will see that it takes the path /usr as ousr.

node --version
node /opt/now/hello.js

And it will recognize /opt as 5opt.