The dwz tool tries to deduplicate debug information across binaries, but it has limits on the number of DWARF DIE (Debug Information Entries) it can handle. Large C++ binaries especially those using templates heavilily (like Ceph's crimson components), often exceed these limits.
When building packages with DWZ enabled, the debian packging fails with: ``` dh_dwz: error: Aborting due to earlier error ``` So let's make ceph-crimson-osd an exception when running dwz. This change will not backported to tentacle as tentacle does not build crimson by default. Signed-off-by: Kefu Chai <[email protected]> --- ...lude-ceph-osd-crimson-from-dwz-compr.patch | 52 +++++++++++++++++++ patches/series | 1 + 2 files changed, 53 insertions(+) create mode 100644 patches/0053-debian-rules-exclude-ceph-osd-crimson-from-dwz-compr.patch diff --git a/patches/0053-debian-rules-exclude-ceph-osd-crimson-from-dwz-compr.patch b/patches/0053-debian-rules-exclude-ceph-osd-crimson-from-dwz-compr.patch new file mode 100644 index 00000000000..c5f477adb30 --- /dev/null +++ b/patches/0053-debian-rules-exclude-ceph-osd-crimson-from-dwz-compr.patch @@ -0,0 +1,52 @@ +From 126f3623e3c36bf0bd233b01fd452aeec0415d89 Mon Sep 17 00:00:00 2001 +From: Kefu Chai <[email protected]> +Date: Fri, 23 Jan 2026 15:04:47 +0800 +Subject: [PATCH] debian/rules: exclude ceph-osd-crimson from dwz compression + +When building with DWZ enabled, the debian packaging fails with: +``` + dh_dwz: error: Aborting due to earlier error +``` +Running the dwz command manually reveals the root cause: +``` + $ dwz -mdebian/ceph-osd-crimson/usr/lib/debug/.dwz/x86_64-linux-gnu/ceph-osd-crimson.debug \ + -M/usr/lib/debug/.dwz/x86_64-linux-gnu/ceph-osd-crimson.debug -- \ + debian/ceph-osd-crimson/usr/bin/ceph-osd-crimson \ + debian/ceph-osd-crimson/usr/bin/crimson-store-nbd + dwz: debian/ceph-osd-crimson/usr/bin/ceph-osd-crimson: Too many DIEs, not optimizing + dwz: Too few files for multifile optimization +``` +The dwz tool has a limit on the number of DWARF DIEs (Debug Information +Entries) it can process. The ceph-osd-crimson binary, being a large C++ +executable with extensive template usage, exceeds this limit, causing +dwz to exit with status 1 and fail the build. + +This change excludes only ceph-osd-crimson from dwz processing using +the -X flag, allowing other binaries in the package to still benefit +from DWARF compression while avoiding the build failure. + +Please note, we always disable DWZ in ceph-build's ceph-dev-pipeline. + +Signed-off-by: Kefu Chai <[email protected]> +--- + debian/rules | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/debian/rules b/debian/rules +index 4d31ffd069f..9082c9c4dd2 100755 +--- a/debian/rules ++++ b/debian/rules +@@ -53,6 +53,10 @@ endif + + ifeq ($(DWZ), false) + override_dh_dwz: ++else ++override_dh_dwz: ++ # Exclude ceph-osd-crimson due to excessive debug info (too many DIEs) ++ dh_dwz -Xceph-osd-crimson + endif + + # for python3-${pkg} packages +-- +2.47.3 + diff --git a/patches/series b/patches/series index 53e0e6b83ca..874bef96aa4 100644 --- a/patches/series +++ b/patches/series @@ -50,3 +50,4 @@ 0050-debian-rules-enable-WITH_CRIMSON-when-pkg.ceph.crims.patch 0051-debian-ceph.spec-fix-ceph-osd-upgrade-conflicts.patch 0052-cmake-build-static-seastar-for-release-builds.patch +0053-debian-rules-exclude-ceph-osd-crimson-from-dwz-compr.patch -- 2.47.3 _______________________________________________ pve-devel mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
