Hi! Aurelien Jarno <aurelien@aurel32.net> (2023-05-02): > > [ Reason ] > > Back in #1033301, Aurelien reported that the arm64 kernel size did > > increase significantly due to issues with BTF deduplication. First > > suspected to be a Linux kernel upstream issue, Aurelien discussed this > > on with upstream and it was found that the issue is caused by a > > src:dwarves regression (applied in 1.24-4). > > > > Details in https://bugs.debian.org/1033301#31 > > > > The (not yet uploaded) dwarves upload with attache debdiff > > cherry-picks the upstream commit. > > > > (Please provide enough (but not too much) information to help > > the release team to judge the request efficiently. E.g. by > > filling in the sections below.) > > > > [ Impact ] > > Increased arm64 kernel size. > > > > [ Tests ] > > Apart from the report from Aurelien[1], package passes its autopkgtest. > > > > [1] https://lore.kernel.org/linux-arm-kernel/ZEzHaJUP21Ln5XBt@aurel32.net/ > > Thanks a lot for preparing this pre-approval request and the > corresponding upload. I confirm that I tested the exact same change on > arm64, on both native and cross-compiled build and that it fixes the > issue I reported. > > > [ Risks ] > > The upstream commit zero-initializes memory which previous was not > > initialized after allocation, and might have contained garbage values > > which were used. The fix is isolated as a oneliner. > > I agree that the risk is quite low. The fix also likely improves > reproducibility by removing a dependence on build time random data which > is always good think. Thanks from me as well for the d-i side: this issue worried me earlier but didn't reach my list of topics to keep an eye on for Bookworm (https://salsa.debian.org/installer-team/debian-installer/-/issues/1), I'm glad you kept track! I'll let someone else from the release team comment on the actual unblock request though. Cheers, -- Cyril Brulebois (kibi@debian.org) <https://debamax.com/> D-I release manager -- Release team member -- Freelance Consultant
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