Searching in files in WSL does not work generally

Type: Bug

Steps:
# Open a project directory from WSL file system.
# Search in files for any word.
Result:
* VS Code stay searching forever and never display any result (still searching after 4 hours).
* I have to use an external tool.
* It may rarely works (2% chance). Searching from VS code is not reliable.

VS Code version: Code 1.126.0 (7e7950df89d055b5a378379db9ee14290772148a, 2026-06-23T01:46:13Z)
OS version: Windows_NT x64 10.0.26200
Modes:
Remote OS version: Linux x64 6.6.87.2-microsoft-standard-WSL2
Connection to 'ssh-remote+10.12.15.199' could not be established
Connection to 'ssh-remote+10.12.15.199' could not be established
Connection to 'attached-container+7b22636f6e7461696e65724e616d65223a222f636f6e66696775726174696f6e2d6d616e61676572227d@ssh-remote+10.12.15.199' could not be established

System Info

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz (8 x 3408)|
|GPU Status|2d_canvas: unavailable_software
GPU0: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VENDOR=Microsoft, DRIVER_VERSION=10.0.26100.8521
GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8521 *ACTIVE*
Machine model name:
Machine model version:
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: disabled_software
multiple_raster_threads: enabled_on
opengl: disabled_off
rasterization: disabled_software
raw_draw: disabled_off_ok
skia_graphite: disabled_off
trees_in_viz: disabled_off
video_decode: disabled_software
video_encode: disabled_software
webgl: unavailable_software
webgpu: unavailable_software
webnn: unavailable_software|
|Load (avg)|undefined|
|Memory (System)|31.78GB (11.86GB free)|
|Process Argv|--crash-reporter-id b351cb65-6f63-49df-add2-933985ef52e4|
|Screen Reader|no|
|VM|0%|

|Item|Value|
|---|---|
|Remote|WSL: Ubuntu|
|OS|Linux x64 6.6.87.2-microsoft-standard-WSL2|
|CPUs|Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz (8 x 0)|
|Memory (System)|15.51GB (14.53GB free)|
|VM|0%|

Connection to 'ssh-remote+10.12.15.199' could not be established

Connection to 'ssh-remote+10.12.15.199' could not be established

Connection to 'attached-container+7b22636f6e7461696e65724e616d65223a222f636f6e66696775726174696f6e2d6d616e61676572227d@ssh-remote+10.12.15.199' could not be established
Extensions (9)

Name|Identifier|Author|Version
---|---|---|---
Dev Containers|ms-vscode-remote.remote-containers|ms-vscode-remote|0.466.0
Remote - SSH|ms-vscode-remote.remote-ssh|ms-vscode-remote|0.124.0
Remote - SSH: Editing Configuration Files|ms-vscode-remote.remote-ssh-edit|ms-vscode-remote|0.87.0
WSL|ms-vscode-remote.remote-wsl|ms-vscode-remote|0.104.3
Remote Explorer|ms-vscode.remote-explorer|ms-vscode|0.5.0
CMake Tools|ms-vscode.cmake-tools|ms-vscode|1.23.52
C/C++ DevTools|ms-vscode.cpp-devtools|ms-vscode|0.5.13
C/C++|ms-vscode.cpptools|ms-vscode|1.32.2
C/C++ Extension Pack|ms-vscode.cpptools-extension-pack|ms-vscode|1.5.1

A/B Experiments

```
vsliv368:30146709
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
6abeh943:31336334
envsactivate1:31538736
cloudbuttont:31379625
3efgi100_wstrepl:31403338
ddidt:31399633
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
c3h7c220:31478652
cp_cls_t_1081:31454832
conptydll_true:31498968
e9c30283:31461165
test_treatment2:31471001
46204921:31447328
idci7584:31464702
e3e4d672:31494082
ei9d7968:31496641
chat:31457767
7e187181:31503455
ghj88844:31499326
ec1eg703:31520046
ddid_t:31478206
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_t_632:31543129
b1ei0813:31506238
56dj4588:31512888
32d76977:31512328
ha629193:31508444
cdk-lw-on:31524445
a1ije391_t:31540920
hgf2d445:31529595
8hfba999:31537718
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
gf14b233:31526830
h561g132:31533256
sessions_3:31532893
ihg5j128:31534457
7g2b5551:31542111
nes-nc-ctrl:31546581

```