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windows-miner: read the miner exit code reliably so the hourly program change rebuilds instead of looping

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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
igneum-labs 2026-10-03 20:13:39 +00:00
parent c7320378af
commit 9b67b3e8d2
1 changed files with 19 additions and 2 deletions
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21
proto-cuda/windows-miner/start-mining.ps1
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@ -68,6 +68,22 @@ $script:tick = 0 # frame counter, drives the heartbeat marker
$script:events = New-Object System.Collections.ArrayList
$script:uploadOk = $true
function Get-ExitCode($inst) {
$code = $null
try { $code = $inst.proc.ExitCode } catch { }
if ($null -eq $code -and $inst.log -and (Test-Path $inst.log)) {
try {
$fs = New-Object IO.FileStream($inst.log, [IO.FileMode]::Open, [IO.FileAccess]::Read, [IO.FileShare]::ReadWrite)
$len = $fs.Length; $n = [Math]::Min($len, 4096); $fs.Seek(-$n, [IO.SeekOrigin]::End) | Out-Null
$b = New-Object byte[] $n; [void]$fs.Read($b, 0, $n); $fs.Close()
$tail = [Text.Encoding]::UTF8.GetString($b)
if ($tail -match 'exiting with code (\d+)') { $code = [int]$Matches[1] }
elseif ($tail -match 'SEED CHANGE') { $code = 42 }
} catch { }
}
return $code
}
function Log([string]$msg) {
$line = "$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss') $msg"
if (-not $script:dashOn) { Write-Host $line }
@ -316,6 +332,7 @@ function Start-Miner($v, $inst) {
}
Set-Content -Path $inst.log -Value "igneum-mine-test $($inst.label) $machine $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss') node $nodeUrl run $($inst.runId) start $($inst.starts)"
$inst.proc = Start-Process -FilePath $miner -ArgumentList $margs -WorkingDirectory $(if ($v.name -eq 'amd') { Join-Path $root 'proto-opencl' } else { $root }) -RedirectStandardOutput $inst.log -RedirectStandardError $inst.err -NoNewWindow -PassThru
if ($inst.proc) { $null = $inst.proc.Handle } # without touching Handle, ExitCode comes back empty after the process ends
$inst.startedAt = Get-Date
Log "$($inst.label) started (pid $($inst.proc.Id)): `"$miner`" $($margs -join ' ') -> $($inst.log)"
}
@ -832,7 +849,7 @@ try {
foreach ($v in @($vendors.Values)) {
$seedChange = $false
foreach ($inst in $v.instances) {
if ($inst.proc -and $inst.proc.HasExited -and $inst.proc.ExitCode -eq 42) { $seedChange = $true }
if ($inst.proc -and $inst.proc.HasExited -and (Get-ExitCode $inst) -eq 42) { $seedChange = $true }
}
if ($seedChange) {
# The whole vendor group restarts: the worker exe cannot be rebuilt while another identity still runs it
@ -861,7 +878,7 @@ try {
foreach ($inst in $v.instances) {
if ($inst.proc -and $inst.proc.HasExited -and -not $inst.restartAt) {
$inst.restarts += 1
$inst.exitCode = $inst.proc.ExitCode
$inst.exitCode = Get-ExitCode $inst
$inst.restartAt = (Get-Date).AddSeconds(10)
Log "$($inst.label): miner exited unexpectedly with code $($inst.exitCode); restarting in 10 s (restart $($inst.restarts))"
Add-Event "$($v.card) miner $($inst.index) stopped (code $($inst.exitCode)), restarting in 10 s" 'error'