From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9FFCE3201 for ; Sun, 24 Nov 2024 18:20:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732472422; cv=none; b=FwdpGj0bpPo8isABdqqI6+kCW2hf5cI1xbNUDeTkQn7ICfF6iH0pRUgIL0FgsAjp+xjRoZVlsN5oCwo84AawXNJ11g0bCYK23DVldLdYcqQBDfGENOcGwcNti8bZJwPIxwYoEF8+Tu9G4R2cvomNxFnRC2UVJFNNbhIoXnHL2Yw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732472422; c=relaxed/simple; bh=A/o+t7X5zW6prUgnMbzv7u7tC3FBzrjA/KB/3rYLB44=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=JdcPFMrw+S2WcmOrCNv5vgp/Ls2UPQ2BMmsTFgoUOJGdnIv2daD1KzDDjAiduml2L4pBoOnFZzmXlmD2au02DP8rk/6mRMVcJVEVPIwGhGGgKBq+5tzfgjKqinN6jrvkofiDaxiRFPAZFcw6G4uMCU9dhbb9vNcd4YdHaT1nncQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 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-il1-f198.google.com with SMTP id e9e14a558f8ab-3a778ce76fbso43027995ab.1 for ; Sun, 24 Nov 2024 10:20:20 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732472420; x=1733077220; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=P/6Vq4W8NwunC2xKF+nMlvwvY5rpDEJHKxrND8ruiEQ=; b=nwNB/0w812LMm94eEUpiJEK5R0a/64NRFX3F47rjtgmLjsLqTHbY+w10LfcmBY4hpK gzHlqmNB6HlAuAlR757gxjKTBleOyt/y6zqxHWAQcxlgqWCVNehs0ZEPdvul1h1uaPyE UCsD+rWF5pJft54CLtI2Da/f978Mipjy5w6KQUHQQmF0PSKZtj412I3vT3PBC2F7dIgy 0ad8buDIu+vepJsI6orF3dfgDeckj/uVCOS44O2gwOHMZMTbPd3k4lAT8CDiWSqSbiwG rw/KNsF2vkMMtT2BiGE0phNiLu89Kr1xw0nQ5DXtXzCGyC/LfiPP4z1V0r8iQJxTEzT+ O44w== X-Forwarded-Encrypted: i=1; AJvYcCVkYvjQmDoeNqVrJz/Rs9/uiyiWcMTkGv0s0z78p4hg3R5ORLt/X+FBd+WUGODYxyAgwjsORSq8EzjB+AM=@vger.kernel.org X-Gm-Message-State: AOJu0Yx8ZbykcO4VfoJ3qfZmzV+oHtBiHEcE47gwVc4xY8g2TGSl3A4u Tf+BijGHRVnOZaBs+NAFxm4x7OfHFbX123qtDcdahtWetwYKHciekiI1ItxRLtL3g4Yz3iLkroZ 4RxRZfyRYSdoxuiSjRHW+8b5sh1PS/rISCjxO1KnvN3LouxI1NjyEvbc= X-Google-Smtp-Source: AGHT+IG63NQKW5l+TFX3jZ1P9X6G+vCMEPT25pCVvIGcSsHpff6grHN2h1picU+rHRJ3rT596QJmZZlXQ5ep6XKBEs6DLg8x9iGm Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:17c9:b0:3a7:8720:9dec with SMTP id e9e14a558f8ab-3a79acf154dmr89172995ab.2.1732472419826; Sun, 24 Nov 2024 10:20:19 -0800 (PST) Date: Sun, 24 Nov 2024 10:20:19 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67436e63.050a0220.1cc393.0048.GAE@google.com> Subject: [syzbot] [kernel?] WARNING in flush_tlb_func From: syzbot To: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: ac24e26aa08f Add linux-next specific files for 20241120 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=136a1930580000 kernel config: https://syzkaller.appspot.com/x/.config?x=45719eec4c74e6ba dashboard link: https://syzkaller.appspot.com/bug?extid=2f32bc207cbe5ca4b7a2 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/9c6bcf3605c7/disk-ac24e26a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4ce96eb398a9/vmlinux-ac24e26a.xz kernel image: https://storage.googleapis.com/syzbot-assets/9a22aac22c90/bzImage-ac24e26a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2f32bc207cbe5ca4b7a2@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5987 at arch/x86/mm/tlb.c:816 flush_tlb_func+0x631/0x700 arch/x86/mm/tlb.c:816 Modules linked in: CPU: 0 UID: 0 PID: 5987 Comm: syz.4.29 Not tainted 6.12.0-next-20241120-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:flush_tlb_func+0x631/0x700 arch/x86/mm/tlb.c:816 Code: e9 16 fb ff ff 90 0f 0b 90 e9 76 fb ff ff 45 31 f6 49 bc 00 00 00 00 00 fc ff df e9 53 ff ff ff 90 0f 0b 90 e9 8f fc ff ff 90 <0f> 0b 90 e9 a8 fc ff ff 90 0f 0b 90 e9 d5 fb ff ff 90 0f 0b 90 e9 RSP: 0018:ffffc900044fea20 EFLAGS: 00010016 RAX: dffffc0000000000 RBX: ffff8880b863d7c0 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880290b9a88 RBP: ffffc900044feb10 R08: ffff8880290b9a8f R09: 1ffff11005217351 R10: dffffc0000000000 R11: ffffed1005217352 R12: 1ffff110170c7afb R13: 000000000000001a R14: 0000000000000019 R15: ffff8880b863d7d8 FS: 00007fcd5b0116c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8e8dc656c0 CR3: 000000005fae2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: csd_do_func kernel/smp.c:134 [inline] smp_call_function_many_cond+0x1760/0x2ca0 kernel/smp.c:875 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline] flush_tlb_multi arch/x86/mm/tlb.c:938 [inline] flush_tlb_mm_range+0x329/0x5c0 arch/x86/mm/tlb.c:1024 flush_tlb_page arch/x86/include/asm/tlbflush.h:254 [inline] ptep_clear_flush+0x11a/0x170 mm/pgtable-generic.c:101 page_vma_mkclean_one+0x58a/0x9a0 mm/rmap.c:1051 page_mkclean_one+0x280/0x420 mm/rmap.c:1092 rmap_walk_file+0x52f/0x9f0 mm/rmap.c:2708 rmap_walk mm/rmap.c:2726 [inline] folio_mkclean+0x262/0x440 mm/rmap.c:1124 folio_clear_dirty_for_io+0x22b/0xd00 mm/page-writeback.c:3033 mpage_submit_folio+0x88/0x230 fs/ext4/inode.c:1913 mpage_map_and_submit_buffers fs/ext4/inode.c:2178 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2310 [inline] ext4_do_writepages+0x1d15/0x3d10 fs/ext4/inode.c:2735 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824 do_writepages+0x35f/0x880 mm/page-writeback.c:2702 filemap_fdatawrite_wbc mm/filemap.c:397 [inline] __filemap_fdatawrite_range mm/filemap.c:430 [inline] file_write_and_wait_range+0x2a3/0x3c0 mm/filemap.c:787 ext4_sync_file+0x25d/0xb90 fs/ext4/fsync.c:158 __do_sys_msync mm/msync.c:96 [inline] __se_sys_msync+0x3d7/0x5a0 mm/msync.c:32 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcd5a17e819 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcd5b011038 EFLAGS: 00000246 ORIG_RAX: 000000000000001a RAX: ffffffffffffffda RBX: 00007fcd5a335fa0 RCX: 00007fcd5a17e819 RDX: 0000000000000004 RSI: 087abbe8d1cc6ad9 RDI: 0000000020952000 RBP: 00007fcd5a1f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcd5a335fa0 R15: 00007ffc671020c8 --- 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