Build Information
Failed to build MachOKitExtensions, reference main (39bdf7), with Swift 6.4 for Linux on 10 Oct 2026 05:19:10 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344849-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/MxIris-Reverse-Engineering/MachOKitExtensions.git
Reference: main
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m <name>
From https://github.com/MxIris-Reverse-Engineering/MachOKitExtensions
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 39bdf74 feat: resolve binds an image satisfies from its own exports
Cloned https://github.com/MxIris-Reverse-Engineering/MachOKitExtensions.git
Revision (git rev-parse @):
39bdf745ad729c798395beb4dca12587ea5686c9
SUCCESS checkout https://github.com/MxIris-Reverse-Engineering/MachOKitExtensions.git at main
========================================
Build
========================================
Selected platform: linux
Swift version: 6.4
Building package at path: $PWD
https://github.com/MxIris-Reverse-Engineering/MachOKitExtensions.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344849-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:cb09f0c0d537a8668f02529c380785d189fc75032d54572211355a09e050e122
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.4-latest
Fetching https://github.com/p-x9/AssociatedObject
Fetching https://github.com/MxIris-Reverse-Engineering/MachOKit
[1/718] Fetching associatedobject
[719/8537] Fetching associatedobject, machokit
Fetched https://github.com/p-x9/AssociatedObject (0.71s)
Fetched https://github.com/MxIris-Reverse-Engineering/MachOKit (0.71s)
Computing version for https://github.com/MxIris-Reverse-Engineering/MachOKit
Computed https://github.com/MxIris-Reverse-Engineering/MachOKit at 0.54.101 (0.92s)
Fetching https://github.com/apple/swift-crypto.git
Fetching https://github.com/p-x9/swift-fileio.git
Fetching https://github.com/p-x9/swift-fileio-extra.git
Fetching https://github.com/apple/swift-asn1.git
Fetching https://github.com/p-x9/ObjectArchiveKit.git
[1/259] Fetching objectarchivekit
[260/350] Fetching objectarchivekit, swift-fileio-extra
[351/2359] Fetching objectarchivekit, swift-fileio-extra, swift-asn1
[492/3049] Fetching objectarchivekit, swift-fileio-extra, swift-asn1, swift-fileio
[630/21669] Fetching objectarchivekit, swift-fileio-extra, swift-asn1, swift-fileio, swift-crypto
Fetched https://github.com/p-x9/ObjectArchiveKit.git (0.39s)
Fetched https://github.com/p-x9/swift-fileio.git (0.39s)
[1976/20720] Fetching swift-fileio-extra, swift-asn1, swift-crypto
Fetched https://github.com/p-x9/swift-fileio-extra.git (0.43s)
Fetched https://github.com/apple/swift-asn1.git (0.43s)
[1118/18620] Fetching swift-crypto
Fetching https://github.com/p-x9/swift-binary-parse-support.git
Fetched https://github.com/apple/swift-crypto.git (1.21s)
[1/256] Fetching swift-binary-parse-support
Fetched https://github.com/p-x9/swift-binary-parse-support.git (0.33s)
Computing version for https://github.com/p-x9/ObjectArchiveKit.git
Computed https://github.com/p-x9/ObjectArchiveKit.git at 0.5.0 (1.71s)
Computing version for https://github.com/p-x9/swift-binary-parse-support.git
Computed https://github.com/p-x9/swift-binary-parse-support.git at 0.3.0 (0.14s)
Computing version for https://github.com/p-x9/AssociatedObject
Computed https://github.com/p-x9/AssociatedObject at 0.15.0 (0.15s)
Fetching https://github.com/p-x9/swift-object-association.git
Fetching https://github.com/p-x9/swift-literal-type-inference.git
Fetching https://github.com/swiftlang/swift-syntax.git
[1/207] Fetching swift-object-association
[59/324] Fetching swift-object-association, swift-literal-type-inference
[325/80735] Fetching swift-object-association, swift-literal-type-inference, swift-syntax
Fetched https://github.com/p-x9/swift-literal-type-inference.git (3.97s)
Fetched https://github.com/p-x9/swift-object-association.git (3.97s)
Fetched https://github.com/swiftlang/swift-syntax.git (3.99s)
Computing version for https://github.com/p-x9/swift-object-association.git
Computed https://github.com/p-x9/swift-object-association.git at 0.5.0 (4.15s)
Computing version for https://github.com/p-x9/swift-literal-type-inference.git
Computed https://github.com/p-x9/swift-literal-type-inference.git at 0.6.0 (0.15s)
Computing version for https://github.com/p-x9/swift-fileio-extra.git
Computed https://github.com/p-x9/swift-fileio-extra.git at 0.4.0 (0.17s)
Computing version for https://github.com/p-x9/swift-fileio.git
Computed https://github.com/p-x9/swift-fileio.git at 0.15.1 (0.14s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.6.0 (0.19s)
Computing version for https://github.com/swiftlang/swift-syntax.git
Computed https://github.com/swiftlang/swift-syntax.git at 603.0.2 (0.96s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 4.3.1 (0.23s)
Creating working copy for https://github.com/p-x9/swift-object-association.git
Working copy of https://github.com/p-x9/swift-object-association.git resolved at 0.5.0
Creating working copy for https://github.com/p-x9/swift-binary-parse-support.git
Working copy of https://github.com/p-x9/swift-binary-parse-support.git resolved at 0.3.0
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 4.3.1
Creating working copy for https://github.com/p-x9/swift-fileio.git
Working copy of https://github.com/p-x9/swift-fileio.git resolved at 0.15.1
Creating working copy for https://github.com/swiftlang/swift-syntax.git
Working copy of https://github.com/swiftlang/swift-syntax.git resolved at 603.0.2
Creating working copy for https://github.com/p-x9/AssociatedObject
Working copy of https://github.com/p-x9/AssociatedObject resolved at 0.15.0
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.6.0
Creating working copy for https://github.com/MxIris-Reverse-Engineering/MachOKit
Working copy of https://github.com/MxIris-Reverse-Engineering/MachOKit resolved at 0.54.101
Creating working copy for https://github.com/p-x9/swift-fileio-extra.git
Working copy of https://github.com/p-x9/swift-fileio-extra.git resolved at 0.4.0
Creating working copy for https://github.com/p-x9/ObjectArchiveKit.git
Working copy of https://github.com/p-x9/ObjectArchiveKit.git resolved at 0.5.0
Creating working copy for https://github.com/p-x9/swift-literal-type-inference.git
Working copy of https://github.com/p-x9/swift-literal-type-inference.git resolved at 0.6.0
Downloading package prebuilt https://download.swift.org/prebuilts/swift-syntax/603.0.2/swift-6.4.0-RELEASE-ubuntu_noble_x86_64-MacroSupport.tar.gz
Downloaded https://download.swift.org/prebuilts/swift-syntax/603.0.2/swift-6.4.0-RELEASE-ubuntu_noble_x86_64-MacroSupport.tar.gz (0.25s)
Building for debugging...
[Computing dependencies]
[Constructing description]
[Pre-planning 1 / 691]
[Planning deferred tasks]
[Starting]
[119 / 602]
[135 / 639] MachOKitC
[137 / 639] SwiftRetain
[141 / 639] SwiftRetain
[163 / 639] SwiftASN1
[172 / 639] SwiftASN1-product
[173 / 639] SwiftASN1-product
[175 / 639] LiteralTypeInference-product
[177 / 639] LiteralTypeInference
[180 / 640] FileIO
[190 / 642] LiteralTypeInference
[196 / 642] CryptoBoringWrapper
[200 / 644] LiteralTypeInference
[207 / 653] CCryptoBoringSSL
[215 / 653] CCryptoBoringSSL
[216 / 654] CCryptoBoringSSL
[220 / 654] CCryptoBoringSSL
[227 / 654] CCryptoBoringSSL
[230 / 654] CCryptoBoringSSL
[233 / 654] CCryptoBoringSSL
[235 / 654] CCryptoBoringSSL
[239 / 654] CCryptoBoringSSL
[241 / 654] CCryptoBoringSSL
[242 / 654] CCryptoBoringSSL
[247 / 654] CCryptoBoringSSL
[259 / 654] CCryptoBoringSSL
[260 / 654] CCryptoBoringSSL
[263 / 654] CCryptoBoringSSL
[265 / 654] CCryptoBoringSSL
[268 / 654] CCryptoBoringSSL
[272 / 654] CCryptoBoringSSL
[275 / 654] CCryptoBoringSSL
[279 / 654] CCryptoBoringSSL
[284 / 654] CCryptoBoringSSL
[290 / 654] CCryptoBoringSSL
[294 / 654] CCryptoBoringSSL
[296 / 654] CCryptoBoringSSL
[301 / 654] CCryptoBoringSSL
[303 / 654] CCryptoBoringSSL
[305 / 654] CCryptoBoringSSL
[315 / 654] CCryptoBoringSSL
[330 / 654] CCryptoBoringSSL
[342 / 654] CCryptoBoringSSL
[346 / 654] CCryptoBoringSSL
[349 / 654] CCryptoBoringSSL
[355 / 654] CCryptoBoringSSL
[358 / 654] CCryptoBoringSSL
[362 / 654] CCryptoBoringSSL
[366 / 654] CCryptoBoringSSL
[369 / 654] CCryptoBoringSSL
[370 / 654] CCryptoBoringSSL
[375 / 654] CCryptoBoringSSL
[379 / 654] CCryptoBoringSSL
[383 / 654] CCryptoBoringSSL
[388 / 654] CCryptoBoringSSL
[401 / 654] CCryptoBoringSSL
[403 / 654] CCryptoBoringSSL
[411 / 654] CCryptoBoringSSL
[416 / 654] CCryptoBoringSSL
[429 / 654] CCryptoBoringSSL
[437 / 654] CCryptoBoringSSL
[443 / 654] CCryptoBoringSSL
[449 / 654] CCryptoBoringSSL
[453 / 654] CCryptoBoringSSL
[456 / 654] CCryptoBoringSSL
[461 / 654] CCryptoBoringSSL
[463 / 654] CCryptoBoringSSL
[471 / 654] CCryptoBoringSSL
[475 / 654] CCryptoBoringSSL
[478 / 654] CCryptoBoringSSL
[481 / 654] CCryptoBoringSSL
[484 / 654] CCryptoBoringSSL
[488 / 654] CCryptoBoringSSL
[495 / 654] CCryptoBoringSSL
[505 / 654] CCryptoBoringSSL
[513 / 654] CCryptoBoringSSL
[516 / 654] CCryptoBoringSSL
[523 / 654] CCryptoBoringSSL
[526 / 654] CCryptoBoringSSL
[531 / 654] CCryptoBoringSSL
[537 / 654] CCryptoBoringSSL
[547 / 654] CCryptoBoringSSL
[558 / 654] CCryptoBoringSSL
[561 / 654] CCryptoBoringSSL
[562 / 654] CCryptoBoringSSL
[565 / 654] CCryptoBoringSSL
[569 / 654] CCryptoBoringSSL
[572 / 654] CCryptoBoringSSL
[581 / 654] CCryptoBoringSSL
[587 / 654] BinaryParseSupport
[592 / 657] FileIO
[608 / 670] ObjectAssociation
[614 / 679] ObjectAssociation
[627 / 680] FileIOBinary-product
[630 / 681] FileIOBinary
[632 / 681] Crypto
[633 / 681] Crypto
[634 / 681] Crypto
[650 / 682]
[654 / 689] FileIOBinary
[660 / 700] MachOKit
[661 / 700] MachOKit
[662 / 700] MachOKit
[664 / 700] MachOKit
[665 / 701] MachOKit
[669 / 701] MachOKit
[673 / 701] MachOKit
[676 / 701] MachOKit-product
[681 / 701] AssociatedObjectPlugin
[684 / 702] AssociatedObjectPlugin
[685 / 702] MachOKit
[685 / 702] AssociatedObjectPlugin
[690 / 708] AssociatedObject
[700 / 718] MachOKitExtensions
[701 / 719] MachOKitExtensions
[703 / 719] MachOKitExtensions
[704 / 719] MachOKitExtensions
error: SwiftCompile normal x86_64 /host/spi-builder-workspace/Sources/MachOKitExtensions/MachORepresentableWithCache+.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile MachORepresentableWithCache+.swift
/host/spi-builder-workspace/Sources/MachOKitExtensions/MachORepresentableWithCache+.swift:102:16: [1;31merror: [1;39mtype 'MachOImage' has no member 'current'[0;0m
[0;36m100 |[0;0m
[0;36m101 |[0;0m public func stripPointerTags(of rawVMAddr: UInt64) -> UInt64 {
[0;36m102 |[0;0m [4;39mMachOImage[0;0m.[4;39mcurrent[0;0m().stripPointerTags(of: rawVMAddr)
[0;36m|[0;0m `- [1;31merror: [1;39mtype 'MachOImage' has no member 'current'[0;0m
[0;36m103 |[0;0m }
[0;36m104 |[0;0m
Failed frontend command:
/usr/bin/swift-frontend -frontend -c /host/spi-builder-workspace/Sources/MachOKitExtensions/BinaryInteger+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/CacheSlot.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/DyldCacheLoaded+Cached.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/DyldCacheSubCacheTable.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/FullDyldCache+Cached.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/MachOCacheStorage.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/MachOCached+ChainedFixups.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/MachOCached+ExportTrie.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/MachOCached+SubCaches.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/MachOCached.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/Cached/MachOFile+Cached.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/DyldCache+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/DyldCache+SubCacheFiles.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/File+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/LayoutWrapper+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/LoadCommandsProtocol+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/LocatableLayoutWrapper.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/MachOBindRebaseResolving.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/MachOFile+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/MachONamespace.swift -primary-file /host/spi-builder-workspace/Sources/MachOKitExtensions/MachORepresentable+.swift -primary-file /host/spi-builder-workspace/Sources/MachOKitExtensions/MachORepresentableWithCache+.swift -primary-file /host/spi-builder-workspace/Sources/MachOKitExtensions/MachORepresentableWithCache.swift -primary-file /host/spi-builder-workspace/Sources/MachOKitExtensions/Numeric+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/OptionalProtocol.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/RequiredNonOptional.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/RuntimeProtocol.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/SegmentCommandProtocol+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/String+.swift /host/spi-builder-workspace/Sources/MachOKitExtensions/UnsafeRawPointer+.swift -supplementary-output-file-map /host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/supplementaryOutputs-26 -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -D SWIFT_MODULE_RESOURCE_BUNDLE_UNAVAILABLE -D Xcode -serialize-debugging-options -load-plugin-executable /host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/AssociatedObjectPlugin\#AssociatedObjectPlugin -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CXKCPShims/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CXKCP/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CCryptoBoringSSLShims/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CCryptoBoringSSL/include/module.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps-linux-x86_64/MachOKitC.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps-linux-x86_64/ObjectAssociationRuntimeC.modulemap -Xcc -fmodule-map-file\=/host/spi-builder-workspace/.build/out/Intermediates.noindex/GeneratedModuleMaps-linux-x86_64/AssociatedObjectC.modulemap -Xcc -fno-omit-frame-pointer -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CXKCPShims/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CXKCP/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CCryptoBoringSSLShims/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/swift-crypto/Sources/CCryptoBoringSSL/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/MachOKit/Sources/MachOKitC/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/swift-object-association/Sources/ObjectAssociationRuntimeC/include -Xcc -I/host/spi-builder-workspace/.build/checkouts/AssociatedObject/Sources/AssociatedObjectC/include -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-linux-x86_64/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/DerivedSources-normal/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/DerivedSources/x86_64 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name MachOKitExtensions -package-name spi_builder_workspace -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/MachOKitExtensions_const_extract_protocols.json -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/MachORepresentable+.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/MachORepresentableWithCache+.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/MachORepresentableWithCache.o -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/Numeric+.o -index-unit-output-path /MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/MachORepresentable+.o -index-unit-output-path /MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/MachORepresentableWithCache+.o -index-unit-output-path /MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/MachORepresentableWithCache.o -index-unit-output-path /MachOKitExtensions.build/Debug-linux-x86_64/MachOKitExtensions-t.build/Objects-normal/x86_64/Numeric+.o -index-store-path /host/spi-builder-workspace/.build/out -index-system-modules
error: Build failed
BUILD FAILURE 6.4 linux