From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.167.198 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792438834; b=RtscDZgEjJI79ahOzXR3W4eafUcHudgtb3LI2aPvcQkYptFFUcTCUjdvYKQMXQeoBKRZ 5s/Gq0TruHLAkJ4fTZfYbHWFpiSE884Ubx50L8kQVVcW9eAl5a+WC3E65orDPL3xiDoiU v1OcWz/+fVPCNhagKo8nYv1nsw1VXxHK/Sl2iqRlKw3C2dPNnb8s9b9hWVdtSC5pvfIIl oPByXarwXwITNwXblN6CfSVSOgiPijMkvpalOIRUCIlFi69wvy3XRpdqADIPyjf7pKLW+ TqxJ43+wVxz2U8v7jy02KnUdoU0bxr3tRnXfXwV49OSxLgaP+ziqBjXgmU5HRcuNajg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792438834; h=DMARC-Filter:Received:X-Google-DKIM-Signature:X-Forwarded-Encrypted: X-Gm-Message-State:MIME-Version:X-Received:Date: X-Google-Appengine-App-Id:X-Google-Appengine-App-Id-Alias:Message-ID: Subject:From:To:Content-Type; bh=PBifRyIrgHNKeJNMg4xWZbwNbxc9hE/18PM0weTakxA=; b=sl/CIIkSu27EcoLiYMFQu6PCPF5QBDdwQVA9VFIOXWk0IxJ+ek6Pz5s06XXqk1YdxDSZ VUeJskEW2z1iECWxG3BBIcxeQ1hvFG/2eMb3xN3sDpuvV9jbfDLQm/lf14zxc82VdyIMq AbMQ2vj85rWG8FU2KJGQyKuqGFbPM+AN8g5FSDQQC4VfbtrNyVDagt/1rM2vH3qNRtpXt zxEdrlmcnFqwugEsDQ4g7FwEBjfQIAAm+i58QEprmY3awkAVj7mHUhsah8rY0VWQ5bodq ziXzWVHwaj5gIe5mydQn75Z9SEprLl5pcVy80l6fajTsA3Dcle7xF9x7ai+w/y7kCKg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.remote-ip=209.85.167.198 Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F4F2606A31B for ; Mon, 19 Oct 2026 19:40:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 4F4F2606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-54d6281f6dbso129250b6e.2 for ; Mon, 19 Oct 2026 12:40:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792438833; x=1793043633; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=PBifRyIrgHNKeJNMg4xWZbwNbxc9hE/18PM0weTakxA=; b=IW/aD3C9BOF66fpkTKG3jC7FlRFhf/RAjM2rFJJaMXAiim2L/warFOjo4kNbne44Qo e1iN2IfVr3sPOLrl/mRQoQWSGiGmGJEQo+gyQkbw1EQ2SE5V1cm+sfhTKYfUWk9lH43n izymXy+Jdc8sixGlxA++UDUZN3qUBbTMG3bvXa37L1gDdaU8RM5pjtaxu/3NYDD9dRfJ u3pzdt8EFa32yFKYODKLtxrlfCKayz1gutoWwCczZ1uPSvgVml2pOkY472zVzAObuIXT 0Jk+B+Oiqs6Ke5zbL+D3FSguexamUCbbbN8vywvoXI2Cpkn02jI9w3+BBL/oVgW6TnI0 pJjg== X-Forwarded-Encrypted: i=1; AKwUvBwiBtQw904t9NWY7O3wRdqz0tZL1Qp4S7sYNzi4tKMod7gauOzVlpXCHNXZPKy/3PKrIEJuGCkDSpeBvwY=@vger.kernel.org X-Gm-Message-State: AFq9FYKASAAqZpOKdfCxjM29Nw7IfIZJKWuHbQDfEHRZZIT4FRqKr9Xm mhqxl7mL/5TiKkZE1p2aFYLPSCKnHCAvgF2VSuWs3NpaNn8kJ1yi1pvzspW2Xnx/V+P9iV0KArY hOnASp2t7IscUXgfqZJ48xtEqXzjz0uu4VMiN8GwaOBvePLxHpYtBEXu9UXc= X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Received: by 2002:a05:6808:1784:b0:4e6:cc78:edc1 with SMTP id 5614622812f47-53ccf0036fbmr8290767b6e.42.1792438833300; Mon, 19 Oct 2026 12:40:33 -0700 (PDT) Date: Mon, 19 Oct 2026 12:40:33 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ad67231.a20cb897.960b0.0042.GAE@google.com> Subject: [syzbot] [mm?] WARNING in shrink_one From: syzbot To: akpm@linux-foundation.org, david@kernel.org, gourry@gourry.net, joshua.hahnjy@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, rakie.kim@sk.com, syzkaller-bugs@googlegroups.com, ying.huang@linux.alibaba.com, ziy@nvidia.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: a0ff06b3a7bd Merge tag 'firewire-fixes-7.3-final' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12cdb20d580000 kernel config: https://syzkaller.appspot.com/x/.config?x=44ac479246d4559b dashboard link: https://syzkaller.appspot.com/bug?extid=54f6a8926b40a171f2c8 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-a0ff06b3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3f4bcbceb92e/vmlinux-a0ff06b3.xz kernel image: https://storage.googleapis.com/syzbot-assets/bf4df8252e54/bzImage-a0ff06b3.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+54f6a8926b40a171f2c8@syzkaller.appspotmail.com ------------[ cut here ]------------ current->flags & PF_MEMALLOC WARNING: mm/page_alloc.c:4816 at __alloc_pages_slowpath mm/page_alloc.c:4816 [inline], CPU#3: syz-executor/5706 WARNING: mm/page_alloc.c:4816 at __alloc_frozen_pages_noprof+0x1eac/0x3300 mm/page_alloc.c:5449, CPU#3: syz-executor/5706 Modules linked in: CPU: 3 UID: 0 PID: 5706 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__alloc_pages_slowpath mm/page_alloc.c:4816 [inline] RIP: 0010:__alloc_frozen_pages_noprof+0x1eac/0x3300 mm/page_alloc.c:5449 Code: 38 d0 7c 08 84 d2 0f 85 de 12 00 00 65 48 8b 05 c2 6c 1c 13 c7 84 24 94 00 00 00 00 80 00 00 f6 40 2d 08 0f 84 ba e7 ff ff 90 <0f> 0b 90 e9 b1 e7 ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 RSP: 0000:ffffc900045465e8 EFLAGS: 00010202 RAX: ffff88802a07a580 RBX: 0000000000000000 RCX: 1ffff1100fffad29 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88803fffd938 RBP: ffff88802a07a5ac R08: 0000000000008000 R09: 0000000000000001 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000048c40 R13: ffff88803fffb900 R14: 0000000000000000 R15: 1ffff920008a8cd7 FS: 0000000000000000(0000) GS:ffff888095a4a000(0063) knlGS:00000000567714c0 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7159f10 CR3: 00000000265ed000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000000f000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: alloc_pages_mpol+0x201/0x550 mm/mempolicy.c:2486 alloc_pages_noprof mm/mempolicy.c:2577 [inline] folio_alloc_noprof+0x22/0x250 mm/mempolicy.c:2587 filemap_alloc_folio_noprof.part.0+0x3db/0x440 mm/filemap.c:1019 shrink_one+0x398/0x850 mm/vmscan.c:5119 shrink_many mm/vmscan.c:5180 [inline] lru_gen_shrink_node mm/vmscan.c:5258 [inline] shrink_node+0x2b20/0x4320 mm/vmscan.c:6247 shrink_zones mm/vmscan.c:6503 [inline] do_try_to_free_pages+0x33e/0x16d0 mm/vmscan.c:6565 try_to_free_pages+0x2a0/0x740 mm/vmscan.c:6804 __perform_reclaim mm/page_alloc.c:4451 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:4478 [inline] __alloc_pages_slowpath mm/page_alloc.c:4939 [inline] __alloc_frozen_pages_noprof+0xf8a/0x3300 mm/page_alloc.c:5449 alloc_pages_mpol+0x201/0x550 mm/mempolicy.c:2486 alloc_pages_noprof mm/mempolicy.c:2577 [inline] folio_alloc_noprof+0x22/0x250 mm/mempolicy.c:2587 filemap_alloc_folio_noprof.part.0+0x3db/0x440 mm/filemap.c:1019 filemap_alloc_folio_noprof mm/filemap.c:2033 [inline] __filemap_get_folio_mpol+0x653/0x1280 mm/filemap.c:2018 __filemap_get_folio include/linux/pagemap.h:761 [inline] filemap_fault+0x879/0x3130 mm/filemap.c:3607 __do_fault+0x10b/0x440 mm/memory.c:5565 do_read_fault mm/memory.c:6000 [inline] do_fault+0xb3f/0x1830 mm/memory.c:6134 do_pte_missing mm/memory.c:4700 [inline] handle_pte_fault mm/memory.c:6558 [inline] __handle_mm_fault+0x150b/0x2f60 mm/memory.c:6707 handle_mm_fault+0x363/0xa20 mm/memory.c:6876 do_user_addr_fault+0x59c/0x12f0 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0023:0xf7159f10 Code: Unable to access opcode bytes at 0xf7159ee6. RSP: 002b:00000000ffdf10b0 EFLAGS: 00010283 RAX: 0000000000000051 RBX: 00000000f73ebff4 RCX: 0000000000000050 RDX: 0000000056792cf8 RSI: 0000000056792748 RDI: 00000000f73f2760 RBP: 00000000000005b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup