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Wed, 15 Oct 2025 09:17:40 -0700 (PDT) Date: Wed, 15 Oct 2025 09:17:40 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68efc924.050a0220.91a22.02a2.GAE@google.com> Subject: [moderation/CI] Re: mm, bpf: BPF-MM, BPF-THP From: syzbot ci To: syzkaller-upstream-moderation@googlegroups.com Cc: syzbot@lists.linux.dev Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable syzbot ci has tested the following series [v10] mm, bpf: BPF-MM, BPF-THP https://lore.kernel.org/all/20251015141716.887-1-laoar.shao@gmail.com * [RFC PATCH v10 mm-new 1/9] mm: thp: remove vm_flags parameter from khugep= aged_enter_vma() * [RFC PATCH v10 mm-new 2/9] mm: thp: remove vm_flags parameter from thp_vm= a_allowable_order() * [RFC PATCH v10 mm-new 3/9] mm: thp: add support for BPF based THP order s= election * [RFC PATCH v10 mm-new 4/9] mm: thp: decouple THP allocation between swap = and page fault paths * [RFC PATCH v10 mm-new 5/9] mm: thp: enable THP allocation exclusively thr= ough khugepaged * [RFC PATCH v10 mm-new 6/9] bpf: mark mm->owner as __safe_rcu_or_null * [RFC PATCH v10 mm-new 7/9] bpf: mark vma->vm_mm as __safe_trusted_or_null * [RFC PATCH v10 mm-new 8/9] selftests/bpf: add a simple BPF based THP poli= cy * [RFC PATCH v10 mm-new 9/9] Documentation: add BPF-based THP policy manage= ment and found the following issue: kernel build error Full report is available here: https://ci.syzbot.org/series/a8a425e8-ff46-4bac-bf93-1ee0aad0c36a *** kernel build error tree: bpf-next URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf= -next.git base: 56b4d162392dda2365fbc1f482184a24b489d07d arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp= 1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/7b9d324c-f37b-4dfb-bbb3-f6ff6b11b13= 6/config kernel/fork.c:1133:2: error: call to undeclared function 'bpf_thp_exit_mm';= ISO C99 and later do not support implicit function declarations [-Wimplici= t-function-declaration] *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com. The email will later be sent to: [21cnbao@gmail.com akpm@linux-foundation.org ameryhung@gmail.com andrii@ker= nel.org ast@kernel.org baolin.wang@linux.alibaba.com bpf@vger.kernel.org co= rbet@lwn.net daniel@iogearbox.net david@redhat.com dev.jain@arm.com gutierr= ez.asier@huawei-partners.com hannes@cmpxchg.org lance.yang@linux.dev laoar.= shao@gmail.com liam.howlett@oracle.com linux-doc@vger.kernel.org linux-kern= el@vger.kernel.org linux-mm@kvack.org lorenzo.stoakes@oracle.com npache@red= hat.com rdunlap@infradead.org rientjes@google.com ryan.roberts@arm.com shak= eel.butt@linux.dev shy828301@gmail.com tj@kernel.org usamaarif642@gmail.com= willy@infradead.org ziy@nvidia.com] If the report looks fine to you, reply with: #syz upstream