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b=p2MLgonAtabExJ6WcBnB7c1yQdb18pCCLp8DgbhIOUvUNOrb3VOjLXSMlxf6K06dx bct8IhcGTDWdtae5yf8MsKc04A+Xwm2J6KESzlokuiMN6vIFQ4j0kUYCJpakllHbiL ogx8bae+iNaa19jzmh5zfqTAXitSrpKPIwIiAhpg= Date: Fri, 22 Sep 2023 10:28:25 -0700 From: Andrew Morton To: syzbot Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-next@vger.kernel.org, sfr@canb.auug.org.au, syzkaller-bugs@googlegroups.com, David Hildenbrand Subject: Re: [syzbot] [mm?] linux-next test error: WARNING in page_add_anon_rmap Message-Id: <20230922102825.061c67b4418190426fdc68f2@linux-foundation.org> In-Reply-To: <00000000000090d6a00605eb5de9@google.com> References: <00000000000090d6a00605eb5de9@google.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 013C7A001E X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: rumi1dcdkipko9bcbquzsrgppyq6zqbq X-HE-Tag: 1695403709-890268 X-HE-Meta: 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 n65T83Bl 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, 21 Sep 2023 21:51:45 -0700 syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 7fc7222d9680 Add linux-next specific files for 20230918 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=13acae54680000 > kernel config: https://syzkaller.appspot.com/x/.config?x=79253779bcbe3130 > dashboard link: https://syzkaller.appspot.com/bug?extid=6ccbcd15a17f3e1cde38 > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/82da18e596ba/disk-7fc7222d.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/4e71084ae5e0/vmlinux-7fc7222d.xz > kernel image: https://storage.googleapis.com/syzbot-assets/f412e76b12e4/bzImage-7fc7222d.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+6ccbcd15a17f3e1cde38@syzkaller.appspotmail.com > > destroy_args+0x768/0x990 mm/debug_vm_pgtable.c:1028 > debug_vm_pgtable+0x1d79/0x3df0 mm/debug_vm_pgtable.c:1408 > do_one_initcall+0x11c/0x640 init/main.c:1232 > do_initcall_level init/main.c:1294 [inline] > do_initcalls init/main.c:1310 [inline] > do_basic_setup init/main.c:1329 [inline] > kernel_init_freeable+0x5c2/0x8f0 init/main.c:1547 > kernel_init+0x1c/0x2a0 init/main.c:1437 > ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 > ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 5053 at mm/rmap.c:1252 page_add_anon_rmap+0xc33/0x1a70 mm/rmap.c:1252 Thanks, this should be addressed by https://lkml.kernel.org/r/d8e5a093-2e22-c14b-7e64-6da280398d9f@redhat.com