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Sat, 21 Mar 2026 12:58:53 -0700 (PDT) Date: Sat, 21 Mar 2026 12:58:53 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69bef87d.050a0220.3bf4de.005e.GAE@google.com> Subject: [moderation/CI] Re: mm/huge_memory: refactor zap_huge_pmd() 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 [v3] mm/huge_memory: refactor zap_huge_pmd() https://lore.kernel.org/all/cover.1774029655.git.ljs@kernel.org * [PATCH v3 01/13] mm/huge_memory: simplify vma_is_specal_huge() * [PATCH v3 02/13] mm/huge: avoid big else branch in zap_huge_pmd() * [PATCH v3 03/13] mm/huge_memory: have zap_huge_pmd return a boolean, add = kdoc * [PATCH v3 04/13] mm/huge_memory: handle buggy PMD entry in zap_huge_pmd() * [PATCH v3 05/13] mm/huge_memory: add a common exit path to zap_huge_pmd() * [PATCH v3 06/13] mm/huge_memory: remove unnecessary VM_BUG_ON_PAGE() * [PATCH v3 07/13] mm/huge_memory: deduplicate zap deposited table call * [PATCH v3 08/13] mm/huge_memory: remove unnecessary sanity checks * [PATCH v3 09/13] mm/huge_memory: use mm instead of tlb->mm * [PATCH v3 10/13] mm/huge_memory: separate out the folio part of zap_huge_= pmd() * [PATCH v3 11/13] mm: add softleaf_is_valid_pmd_entry(), pmd_to_softleaf_f= olio() * [PATCH v3 12/13] mm/huge_memory: add and use normal_or_softleaf_folio_pmd= () * [PATCH v3 13/13] mm/huge_memory: add and use has_deposited_pgtable() and found the following issue: kernel build error Full report is available here: https://ci.syzbot.org/series/c3a7df63-9a98-4280-89d6-8095fc66d91b *** kernel build error tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvald= s/linux base: a0c83177734ab98623795e1ba2cf4b72c23de5e7 arch: amd64 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp= 1~20251221153213.50), Debian LLD 21.1.8 config: https://ci.syzbot.org/builds/e9989b7c-5e25-414f-babe-85b146b1c0b= a/config mm/huge_memory.c:108:9: error: call to undeclared function 'vma_test_any'; = ISO C99 and later do not support implicit function declarations [-Wimplicit= -function-declaration] mm/huge_memory.c:4615:6: error: call to undeclared function 'vma_test'; ISO= C99 and later do not support implicit function declarations [-Wimplicit-fu= nction-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: [akpm@linux-foundation.org baohua@kernel.org baolin.wang@linux.alibaba.com = david@kernel.org dev.jain@arm.com kas@kernel.org lance.yang@linux.dev liam.= howlett@oracle.com linux-kernel@vger.kernel.org linux-mm@kvack.org ljs@kern= el.org mhocko@suse.com npache@redhat.com rppt@kernel.org ryan.roberts@arm.c= om surenb@google.com vbabka@kernel.org ziy@nvidia.com] If the report looks fine to you, reply with: #syz upstream If the report is a false positive, reply with #syz invalid