Failing written-after-open tests

[QuLogic]

Describe the bug
When I run tests from this repo, two that seem to be about written-after-open conditions fail:

--- FAIL: Test_fdReaddir_opened_file_written (0.00s)
    require.go:331: unexpected value
        expected:
        	[]byte{0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x6b, 0xee, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x2e, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x2e, 0x2e, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x6b, 0xee, 0x1, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x66, 0x69, 0x6c, 0x65}
        was:
        	[]byte{0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x6b, 0xee, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x2e, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x2e, 0x2e}
        
        /root/wazero/imports/wasi_snapshot_preview1/fs_test.go:5141
FAIL
FAIL	github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1	31.825s

--- FAIL: TestDirFS_Readdir (0.00s)
    --- FAIL: TestDirFS_Readdir/Sees_files_written_after_open (0.00s)
        require.go:331: expected 1, but was 0
            /root/wazero/internal/sysfs/dirfs_test.go:698
--- FAIL: TestStat (0.00s)
    --- FAIL: TestStat/empty_dir (0.00s)
        require.go:331: expected 2, but was 1: linux
            /root/wazero/internal/sysfs/stat_test.go:37
    --- FAIL: TestStat/not_empty_dir (0.00s)
        require.go:331: expected 3, but was 1: linux
            /root/wazero/internal/sysfs/stat_test.go:63
FAIL
FAIL	github.com/tetratelabs/wazero/internal/sysfs	0.857s

To Reproduce
I tried this in a Fedora container:

$ podman run --rm -it fedora:rawhide
# dnf update -y
# dnf install -y go git
# git clone https://github.com/tetratelabs/wazero
# cd wazero
# make test

and also an Ubuntu container:

$ podman run --rm -it ubuntu:24.04
# apt update
# apt upgrade -yy
# apt install -yy golang git make
# git clone https://github.com/tetratelabs/wazero
# cd wazero
# make test

Both fail as above.

Expected behavior
The tests should all pass, as they (seem to?) do on CI.

Environment (please complete the relevant information):

• Go version: 1.23.2
• wazero Version: dc08732
• Host architecture: amd64
• Runtime mode: n/a

[AlexanderYastrebov]

I could not reproduce it on my machine (ubuntu 24.04.1) neither on the host nor in docker

[QuLogic]

Perhaps it's a kernel setting, or filesystem thing? It's 100% reproducible for me. The host is Fedora 40 on a btrfs filesystem.