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Bug#973826: marked as done (apt update ignores Diff-index files (WeakHashSums))



Your message dated Thu, 5 Nov 2020 19:12:04 +0100
with message-id <20201105191109.GA3909066@debian.org>
and subject line Re: Bug#973826: apt update ignores Diff-index files (WeakHashSums)
has caused the Debian Bug report #973826,
regarding apt update ignores Diff-index files (WeakHashSums)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
973826: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=973826
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: apt
Version: 2.1.11
Severity: normal

Since a few days I have been observing this bug during regular “apt
update” / “apt upgrade” cycles, without any configuration change on my
side; I am not completely sure if all this started after the last
upgrade to apt 2.1.11.

apt finds (testing, unstable, experimental) InRelease files, downloads
them from the mirror, checks the signatures, and then downloads
Diff-index files that it regularly ignores, be it for Packages, Sources,
or Contents.  The result is always a complete new full download, without
ever considering pdiff files and patching.

After investigating a bit I tried using the following Debug options:

  apt -o Debug::Hashes=true \
      -o Debug::pkgAcquire::Diffs=true \
	-o Debug::pkgAcquire=true \
	-o Debug::Acquire::gpgv=true update

and this was the result:

  [...]
  Dequeuing /var/lib/apt/lists/partial/_etc_apt_mirrors_dists_unstable_main_binary-amd64_Packages.diff_Index
  pkgAcqDiffIndex failed: https://ftp.halifax.rwth-aachen.de/debian/dists/unstable/main/binary-amd64/Packages.diff/by-hash/SHA256/659c48e636a76058a99bcb9b2d27eb3597ab5d72d6e763f1948541aba99d7618 with 201 URI Done
  SHA256-Hash: 659c48e636a76058a99bcb9b2d27eb3597ab5d72d6e763f1948541aba99d7618
  Checksum-FileSize-Hash: 9518
  MD5Sum-Hash: bf69442a56c7d11ea9c4d036fe1b170a
  MD5-Hash: bf69442a56c7d11ea9c4d036fe1b170a
  Last-Modified: Wed, 04 Nov 2020 14:13:12 +0000
  Size: 9518
  Filename: /var/lib/apt/lists/partial/_etc_apt_mirrors_dists_unstable_main_binary-amd64_Packages.diff_Index
  URI: https://ftp.halifax.rwth-aachen.de/debian/dists/unstable/main/binary-amd64/Packages.diff/by-hash/SHA256/659c48e636a76058a99bcb9b2d27eb3597ab5d72d6e763f1948541aba99d7618
  FailReason: WeakHashSums
  Falling back to normal index file acquire
  Fetching mirror+file:/etc/apt/mirrors/dists/unstable/main/binary-amd64/by-hash/SHA256/5059f39d518f9a34159b36adb6ab2f094f8ce937f63e6fada7041a1aea7cce76
   to /var/lib/apt/lists/partial/_etc_apt_mirrors_dists_unstable_main_binary-amd64_Packages.xz
   Queue is: mirror+file
  Dequeuing /var/lib/apt/lists/partial/_etc_apt_mirrors_dists_unstable_main_binary-amd64_Packages.xz
  Dequeued from mirror+file
  Fetching https://ftp.halifax.rwth-aachen.de/debian/dists/unstable/main/binary-amd64/by-hash/SHA256/5059f39d518f9a34159b36adb6ab2f094f8ce937f63e6fada7041a1aea7cce76
  [...]

This is only an excerpt, but the same happens for all other suites and
components: the error is always "FailReason: WeakHashSums".

I then tried other mirrors getting the same results, then I manually
downloaded some of the Index files from the mirror and verified their
SHA256 hash sums: they correspond to what is written in the InRelease
files.  This makes me think that apt is responsible for the failure in
hash sums checking.



-- Package-specific info:

-- apt-config dump --

APT "";
APT::Architecture "amd64";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Install-Recommends "1";
APT::Install-Suggests "0";
APT::Sandbox "";
APT::Sandbox::User "_apt";
APT::Authentication "";
APT::Authentication::TrustCDROM "true";
APT::NeverAutoRemove "";
APT::NeverAutoRemove:: "^firmware-linux.*";
APT::NeverAutoRemove:: "^linux-firmware$";
APT::NeverAutoRemove:: "^linux-image-[a-z0-9]*$";
APT::NeverAutoRemove:: "^linux-image-[a-z0-9]*-[a-z0-9]*$";
APT::NeverAutoRemove:: "^linux-.*-5\.8\.0-3-amd64$";
APT::NeverAutoRemove:: "^linux-.*-5\.9\.0-1-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-.*-5\.8\.0-3-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-.*-5\.9\.0-1-amd64$";
APT::NeverAutoRemove:: "^gnumach-.*-5\.8\.0-3-amd64$";
APT::NeverAutoRemove:: "^gnumach-.*-5\.9\.0-1-amd64$";
APT::NeverAutoRemove:: "^.*-modules-5\.8\.0-3-amd64$";
APT::NeverAutoRemove:: "^.*-modules-5\.9\.0-1-amd64$";
APT::NeverAutoRemove:: "^.*-kernel-5\.8\.0-3-amd64$";
APT::NeverAutoRemove:: "^.*-kernel-5\.9\.0-1-amd64$";
APT::VersionedKernelPackages "";
APT::VersionedKernelPackages:: "linux-.*";
APT::VersionedKernelPackages:: "kfreebsd-.*";
APT::VersionedKernelPackages:: "gnumach-.*";
APT::VersionedKernelPackages:: ".*-modules";
APT::VersionedKernelPackages:: ".*-kernel";
APT::Never-MarkAuto-Sections "";
APT::Never-MarkAuto-Sections:: "metapackages";
APT::Never-MarkAuto-Sections:: "contrib/metapackages";
APT::Never-MarkAuto-Sections:: "non-free/metapackages";
APT::Never-MarkAuto-Sections:: "restricted/metapackages";
APT::Never-MarkAuto-Sections:: "universe/metapackages";
APT::Never-MarkAuto-Sections:: "multiverse/metapackages";
APT::Move-Autobit-Sections "";
APT::Move-Autobit-Sections:: "oldlibs";
APT::Move-Autobit-Sections:: "contrib/oldlibs";
APT::Move-Autobit-Sections:: "non-free/oldlibs";
APT::Move-Autobit-Sections:: "restricted/oldlibs";
APT::Move-Autobit-Sections:: "universe/oldlibs";
APT::Move-Autobit-Sections:: "multiverse/oldlibs";
APT::Keep-Downloaded-Packages "true";
APT::Update "";
APT::Update::Post-Invoke "";
APT::Update::Post-Invoke:: "[ ! -x /usr/bin/debtags ] || debtags update || true";
APT::Architectures "";
APT::Architectures:: "amd64";
APT::Compressor "";
APT::Compressor::. "";
APT::Compressor::.::Name ".";
APT::Compressor::.::Extension "";
APT::Compressor::.::Binary "";
APT::Compressor::.::Cost "0";
APT::Compressor::zstd "";
APT::Compressor::zstd::Name "zstd";
APT::Compressor::zstd::Extension ".zst";
APT::Compressor::zstd::Binary "zstd";
APT::Compressor::zstd::Cost "60";
APT::Compressor::zstd::CompressArg "";
APT::Compressor::zstd::CompressArg:: "-19";
APT::Compressor::zstd::UncompressArg "";
APT::Compressor::zstd::UncompressArg:: "-d";
APT::Compressor::lz4 "";
APT::Compressor::lz4::Name "lz4";
APT::Compressor::lz4::Extension ".lz4";
APT::Compressor::lz4::Binary "lz4";
APT::Compressor::lz4::Cost "50";
APT::Compressor::lz4::CompressArg "";
APT::Compressor::lz4::CompressArg:: "-1";
APT::Compressor::lz4::UncompressArg "";
APT::Compressor::lz4::UncompressArg:: "-d";
APT::Compressor::gzip "";
APT::Compressor::gzip::Name "gzip";
APT::Compressor::gzip::Extension ".gz";
APT::Compressor::gzip::Binary "gzip";
APT::Compressor::gzip::Cost "100";
APT::Compressor::gzip::CompressArg "";
APT::Compressor::gzip::CompressArg:: "-6n";
APT::Compressor::gzip::UncompressArg "";
APT::Compressor::gzip::UncompressArg:: "-d";
APT::Compressor::xz "";
APT::Compressor::xz::Name "xz";
APT::Compressor::xz::Extension ".xz";
APT::Compressor::xz::Binary "xz";
APT::Compressor::xz::Cost "200";
APT::Compressor::xz::CompressArg "";
APT::Compressor::xz::CompressArg:: "-6";
APT::Compressor::xz::UncompressArg "";
APT::Compressor::xz::UncompressArg:: "-d";
APT::Compressor::bzip2 "";
APT::Compressor::bzip2::Name "bzip2";
APT::Compressor::bzip2::Extension ".bz2";
APT::Compressor::bzip2::Binary "bzip2";
APT::Compressor::bzip2::Cost "300";
APT::Compressor::bzip2::CompressArg "";
APT::Compressor::bzip2::CompressArg:: "-6";
APT::Compressor::bzip2::UncompressArg "";
APT::Compressor::bzip2::UncompressArg:: "-d";
APT::Compressor::lzma "";
APT::Compressor::lzma::Name "lzma";
APT::Compressor::lzma::Extension ".lzma";
APT::Compressor::lzma::Binary "xz";
APT::Compressor::lzma::Cost "400";
APT::Compressor::lzma::CompressArg "";
APT::Compressor::lzma::CompressArg:: "--format=lzma";
APT::Compressor::lzma::CompressArg:: "-6";
APT::Compressor::lzma::UncompressArg "";
APT::Compressor::lzma::UncompressArg:: "--format=lzma";
APT::Compressor::lzma::UncompressArg:: "-d";
Dir "/";
Dir::State "var/lib/apt";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::extended_states "extended_states";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "srcpkgcache.bin";
Dir::Cache::pkgcache "pkgcache.bin";
Dir::Etc "etc/apt";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::sourceparts "sources.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::netrc "auth.conf";
Dir::Etc::netrcparts "auth.conf.d";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Etc::preferencesparts "preferences.d";
Dir::Etc::trusted "trusted.gpg";
Dir::Etc::trustedparts "trusted.gpg.d";
Dir::Etc::apt-file-main "apt-file.conf";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::solvers "";
Dir::Bin::solvers:: "/usr/lib/apt/solvers";
Dir::Bin::planners "";
Dir::Bin::planners:: "/usr/lib/apt/planners";
Dir::Bin::dpkg "/usr/bin/dpkg";
Dir::Bin::gzip "/bin/gzip";
Dir::Bin::bzip2 "/bin/bzip2";
Dir::Bin::xz "/usr/bin/xz";
Dir::Bin::lz4 "/usr/bin/lz4";
Dir::Bin::zstd "/usr/bin/zstd";
Dir::Bin::lzma "/usr/bin/xz";
Dir::Media "";
Dir::Media::MountPath "/media/cdrom";
Dir::Log "var/log/apt";
Dir::Log::Terminal "term.log";
Dir::Log::History "history.log";
Dir::Log::Planner "eipp.log.xz";
Dir::Ignore-Files-Silently "";
Dir::Ignore-Files-Silently:: "~$";
Dir::Ignore-Files-Silently:: "\.disabled$";
Dir::Ignore-Files-Silently:: "\.bak$";
Dir::Ignore-Files-Silently:: "\.dpkg-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.ucf-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.save$";
Dir::Ignore-Files-Silently:: "\.orig$";
Dir::Ignore-Files-Silently:: "\.distUpgrade$";
Acquire "";
Acquire::AllowInsecureRepositories "0";
Acquire::AllowWeakRepositories "0";
Acquire::AllowDowngradeToInsecureRepositories "0";
Acquire::cdrom "";
Acquire::cdrom::mount "/media/cdrom";
Acquire::IndexTargets "";
Acquire::IndexTargets::deb "";
Acquire::IndexTargets::deb::Packages "";
Acquire::IndexTargets::deb::Packages::MetaKey "$(COMPONENT)/binary-$(ARCHITECTURE)/Packages";
Acquire::IndexTargets::deb::Packages::flatMetaKey "Packages";
Acquire::IndexTargets::deb::Packages::ShortDescription "Packages";
Acquire::IndexTargets::deb::Packages::Description "$(RELEASE)/$(COMPONENT) $(ARCHITECTURE) Packages";
Acquire::IndexTargets::deb::Packages::flatDescription "$(RELEASE) Packages";
Acquire::IndexTargets::deb::Packages::Optional "0";
Acquire::IndexTargets::deb::Translations "";
Acquire::IndexTargets::deb::Translations::MetaKey "$(COMPONENT)/i18n/Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::flatMetaKey "$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::ShortDescription "Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::Description "$(RELEASE)/$(COMPONENT) Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::flatDescription "$(RELEASE) Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Contents-deb "";
Acquire::IndexTargets::deb::Contents-deb::MetaKey "$(COMPONENT)/Contents-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-deb::ShortDescription "Contents-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-deb::Description "$(RELEASE)/$(COMPONENT) $(ARCHITECTURE) Contents (deb)";
Acquire::IndexTargets::deb::Contents-deb::flatMetaKey "Contents-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-deb::flatDescription "$(RELEASE) Contents (deb)";
Acquire::IndexTargets::deb::Contents-deb::PDiffs "true";
Acquire::IndexTargets::deb::Contents-deb::KeepCompressed "true";
Acquire::IndexTargets::deb::Contents-udeb "";
Acquire::IndexTargets::deb::Contents-udeb::MetaKey "$(COMPONENT)/Contents-udeb-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-udeb::ShortDescription "Contents-udeb-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-udeb::Description "$(RELEASE)/$(COMPONENT) $(ARCHITECTURE) Contents (udeb)";
Acquire::IndexTargets::deb::Contents-udeb::flatMetaKey "Contents-udeb-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-udeb::flatDescription "$(RELEASE) Contents (udeb)";
Acquire::IndexTargets::deb::Contents-udeb::KeepCompressed "true";
Acquire::IndexTargets::deb::Contents-udeb::PDiffs "true";
Acquire::IndexTargets::deb::Contents-udeb::DefaultEnabled "false";
Acquire::IndexTargets::deb::Contents-deb-legacy "";
Acquire::IndexTargets::deb::Contents-deb-legacy::MetaKey "Contents-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-deb-legacy::ShortDescription "Contents-$(ARCHITECTURE)";
Acquire::IndexTargets::deb::Contents-deb-legacy::Description "$(RELEASE) $(ARCHITECTURE) Contents (deb)";
Acquire::IndexTargets::deb::Contents-deb-legacy::PDiffs "true";
Acquire::IndexTargets::deb::Contents-deb-legacy::KeepCompressed "true";
Acquire::IndexTargets::deb::Contents-deb-legacy::Fallback-Of "Contents-deb";
Acquire::IndexTargets::deb::Contents-deb-legacy::Identifier "Contents-deb";
Acquire::IndexTargets::deb-src "";
Acquire::IndexTargets::deb-src::Sources "";
Acquire::IndexTargets::deb-src::Sources::MetaKey "$(COMPONENT)/source/Sources";
Acquire::IndexTargets::deb-src::Sources::flatMetaKey "Sources";
Acquire::IndexTargets::deb-src::Sources::ShortDescription "Sources";
Acquire::IndexTargets::deb-src::Sources::Description "$(RELEASE)/$(COMPONENT) Sources";
Acquire::IndexTargets::deb-src::Sources::flatDescription "$(RELEASE) Sources";
Acquire::IndexTargets::deb-src::Sources::Optional "0";
Acquire::IndexTargets::deb-src::Contents-dsc "";
Acquire::IndexTargets::deb-src::Contents-dsc::MetaKey "$(COMPONENT)/Contents-source";
Acquire::IndexTargets::deb-src::Contents-dsc::ShortDescription "Contents-source";
Acquire::IndexTargets::deb-src::Contents-dsc::Description "$(RELEASE)/$(COMPONENT) source Contents (dsc)";
Acquire::IndexTargets::deb-src::Contents-dsc::flatMetaKey "Contents-source";
Acquire::IndexTargets::deb-src::Contents-dsc::flatDescription "$(RELEASE) Contents (dsc)";
Acquire::IndexTargets::deb-src::Contents-dsc::PDiffs "true";
Acquire::IndexTargets::deb-src::Contents-dsc::KeepCompressed "true";
Acquire::IndexTargets::deb-src::Contents-dsc::DefaultEnabled "false";
Acquire::Changelogs "";
Acquire::Changelogs::URI "";
Acquire::Changelogs::URI::Origin "";
Acquire::Changelogs::URI::Origin::Debian "https://metadata.ftp-master.debian.org/changelogs/@CHANGEPATH@_changelog";;
Acquire::Changelogs::URI::Origin::Ubuntu "https://changelogs.ubuntu.com/changelogs/pool/@CHANGEPATH@/changelog";;
Acquire::Changelogs::AlwaysOnline "";
Acquire::Changelogs::AlwaysOnline::Origin "";
Acquire::Changelogs::AlwaysOnline::Origin::Ubuntu "1";
Acquire::Languages "";
Acquire::Languages:: "en";
Acquire::Languages:: "none";
Acquire::CompressionTypes "";
Acquire::CompressionTypes::xz "xz";
Acquire::CompressionTypes::bz2 "bzip2";
Acquire::CompressionTypes::lzma "lzma";
Acquire::CompressionTypes::gz "gzip";
Acquire::CompressionTypes::lz4 "lz4";
Acquire::CompressionTypes::zst "zstd";
DPkg "";
DPkg::Path "/usr/sbin:/usr/bin:/sbin:/bin";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt || test $? -lt 10";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Tools "";
DPkg::Tools::Options "";
DPkg::Tools::Options::/usr/bin/apt-listchanges "";
DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";
DPkg::Tools::Options::/usr/bin/apt-listchanges::InfoFD "20";
DPkg::Post-Invoke "";
DPkg::Post-Invoke:: "[ -x /usr/lib/libdvd-pkg/b-i_libdvdcss.sh ] && /usr/lib/libdvd-pkg/b-i_libdvdcss.sh || true";
DPkg::Post-Invoke:: "test -x /usr/lib/needrestart/apt-pinvoke && /usr/lib/needrestart/apt-pinvoke || true";
Binary "apt-config";
Binary::apt "";
Binary::apt::APT "";
Binary::apt::APT::Keep-Downloaded-Packages "true";
Binary::apt::APT::Color "1";
Binary::apt::APT::Cache "";
Binary::apt::APT::Cache::Show "";
Binary::apt::APT::Cache::Show::Version "2";
Binary::apt::APT::Cache::AllVersions "0";
Binary::apt::APT::Cache::ShowVirtuals "1";
Binary::apt::APT::Cache::Search "";
Binary::apt::APT::Cache::Search::Version "2";
Binary::apt::APT::Cache::ShowDependencyType "1";
Binary::apt::APT::Cache::ShowVersion "1";
Binary::apt::APT::Get "";
Binary::apt::APT::Get::Upgrade-Allow-New "1";
Binary::apt::APT::Get::Update "";
Binary::apt::APT::Get::Update::InteractiveReleaseInfoChanges "1";
Binary::apt::APT::Cmd "";
Binary::apt::APT::Cmd::Show-Update-Stats "1";
Binary::apt::APT::Cmd::Pattern-Only "1";
Binary::apt::DPkg "";
Binary::apt::DPkg::Progress-Fancy "1";
Binary::apt::DPkg::Lock "";
Binary::apt::DPkg::Lock::Timeout "-1";
apt-file "";
apt-file::Index-Names "deb";
apt-file::Parser "";
apt-file::Parser::Check-For-Description-Header "false";
CommandLine "";
CommandLine::AsString "apt-config dump";

-- /etc/apt/preferences --

Package: *
Pin: release a=testing
Pin-Priority: 900

Package: *
Pin: release a=unstable
Pin-Priority: 800

Package: *
Pin: release o=Debian
Pin-Priority: -10


-- (no /etc/apt/preferences.d/* present) --


-- (no /etc/apt/sources.list present) --


-- (/etc/apt/sources.list.d/01-all.sources present, but not submitted) --


-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (900, 'testing'), (800, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.9.0-1-amd64 (SMP w/4 CPU threads)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages apt depends on:
ii  adduser                 3.118
ii  debian-archive-keyring  2019.1
ii  gpgv                    2.2.20-1
ii  libapt-pkg6.0           2.1.11
ii  libc6                   2.31-4
ii  libgcc-s1               10.2.0-16
ii  libgnutls30             3.6.15-4
ii  libseccomp2             2.4.4-1+b1
ii  libstdc++6              10.2.0-16
ii  libsystemd0             246.6-2

Versions of packages apt recommends:
ii  ca-certificates  20200601

Versions of packages apt suggests:
ii  apt-doc         2.1.11
ii  aptitude        0.8.13-2
ii  dpkg-dev        1.20.5
ii  gnupg           2.2.20-1
ii  powermgmt-base  1.36

-- no debconf information

--- End Message ---
--- Begin Message ---
On Thu, Nov 05, 2020 at 06:10:28PM +0100, Alfredo Finelli wrote:
> Package: apt
> Version: 2.1.11
> Severity: normal
> 
> Since a few days I have been observing this bug during regular “apt
> update” / “apt upgrade” cycles, without any configuration change on my
> side; I am not completely sure if all this started after the last
> upgrade to apt 2.1.11.

This was a server-side issue in dak that's been fixed in the meantime,
not an apt issue.

-- 
debian developer - deb.li/jak | jak-linux.org - free software dev
ubuntu core developer                              i speak de, en

--- End Message ---

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