# The root-socket fix for PC 2 (5 October 2026): a measurement job that ran igneum-prove-host as root inside WSL2 left
# /tmp/sp1-cuda-0.sock owned by root (and possibly a root sp1-gpu-server), so the app's prover (its own WSL user) fails
# every shard with "CudaClientError: Connect(PermissionDenied)". This job, as root: kills every sp1-gpu-server, removes
# the sockets, prints their owners before and after, then switches the app's prover off and on so its next shard
# starts a fresh server under the app's user. Never stops the miners. About 60 s.
$ErrorActionPreference = 'Continue'
$urlFile = if ($env:IGNEUM_APP_DIR) { Join-Path $env:IGNEUM_APP_DIR 'app.url' } else { Join-Path $env:LOCALAPPDATA 'igneum\app\app.url' }
if (-not (Test-Path $urlFile)) { $urlFile = Join-Path $env:LOCALAPPDATA 'igneum\app\app.url' }
$base = (Get-Content $urlFile -Raw).Trim().TrimEnd('/')
function Stamp { (Get-Date).ToUniversalTime().ToString('yyyy-MM-ddTHH:mm:ssZ') }
function Prove($on) { try { (Invoke-RestMethod -Method Post -Uri "$base/api/prove" -ContentType 'application/json' -Body (@{on=$on} | ConvertTo-Json -Compress) -TimeoutSec 10) | ConvertTo-Json -Compress } catch { "error: $_" } }
"RESULT start $(Stamp)"
$bash = @'
echo "RESULT sockets_before $(ls -la /tmp/sp1-cuda-*.sock 2>&1 | tr '\n' ' ')"
echo "RESULT servers_before $(ps -eo user,pid,cmd | grep -E '[s]p1-gpu-server' | tr '\n' ' ' || echo none)"
pkill -x sp1-gpu-server 2>/dev/null; sleep 2; rm -f /tmp/sp1-cuda-*.sock
echo "RESULT sockets_after $(ls -la /tmp/sp1-cuda-*.sock 2>&1 | tr '\n' ' ')"
echo "RESULT servers_after $(ps -eo user,pid,cmd | grep -E '[s]p1-gpu-server' | tr '\n' ' ' || echo none)"
'@
$job = $env:IGNEUM_JOB_DIR; if (-not $job) { $job = $env:TEMP }
$bashFile = Join-Path $job 'socket-fix.sh'
[IO.File]::WriteAllText($bashFile, ($bash -replace "`r`n", "`n"), (New-Object System.Text.UTF8Encoding $false))
$wslPath = (& wsl.exe -d Ubuntu-24.04 -u root -- wslpath -a ($bashFile -replace '\\', '/') 2>$null)
if (-not $wslPath) { $wslPath = '/mnt/c' + ($bashFile.Substring(2) -replace '\\', '/') }
& wsl.exe -d Ubuntu-24.04 -u root -- bash (($wslPath -replace "`0", '').Trim()) 2>&1 | ForEach-Object { ($_ -replace "`0", '') }
"RESULT prove_off $(Stamp) $(Prove $false)"
Start-Sleep -Seconds 15
"RESULT prove_on $(Stamp) $(Prove $true)"
Start-Sleep -Seconds 40
$st = $null; try { $st = Invoke-RestMethod -Uri "$base/api/state" -TimeoutSec 20 } catch {}
"RESULT end $(Stamp) proving status: $($st.proving.status) message: $($st.proving.message)"