From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 B4A1018FDC4 for ; Fri, 30 Aug 2024 10:19:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725013144; cv=none; b=LCB5Jl8eMOLktAfq1WFYC070ps4AJSA/EL1Dua+I6vc1aFKS+3dWCNuTs7vq1nmI4UJ2t7sDUEACptj+NDKUi7SVDZ51R7vRdL8G7emONA2ZwPYIOJpn6sSfnhmh4GAZ4TMvurBLognd809auEnD2zUU66c/QoBHakxj5Gy53qQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725013144; c=relaxed/simple; bh=E92vPcDUNH2H6tXKAyZSvRlnQzJMyeSx5qItmxkxsNE=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=Tg30GDe+aAegRyTVM1EMv6nsEA1FXKFz6pGHbOrLVoNaqghOXTkk6IMurtv1mTw9GfeWC5CfBxwle6iULylyC2cgrvB7N9Jf02CrSFfr/rhyWYRH7kgQJ2rO/gTrKAE3PrfXxUKL3y+8NCmebQ9MNyXiSFDbBZvs2uNH60RFRgs= 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=209.85.166.70 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-io1-f70.google.com with SMTP id ca18e2360f4ac-82a2723a5aeso56793939f.1 for ; Fri, 30 Aug 2024 03:19:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725013142; x=1725617942; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=cZwEs243YnoTjv7mRJam4tBLXDmD+xDF+1bP+8r8g0E=; b=iVAsKml3/TvcUSnbeIlDBN/Assf0QvDqZk/0yZhxZr+e4Y8dLr07+QStANBZpKrY0Q f+yOOV20RJoCWUcimzC+VaI32jUwRzvBRnGOaPxoWIN1YN8MsvEomp/7R2P6gouENXgW nOXxylpuvpSP6s7qzfN2BChVi9NN5AEx8khtuH9S8ChTNnk4WGgNMukRWa17nqsNEFfR JbpECVWhKnEIz6rBJOJcTBr2gKR1ABlkOL0OfzNwT12/O8c/0IWm4TqZF0aW/3M+5N15 k0XK7Fpz+AuJfp/K9J1EcqrgwpLTcd305NsZC2W6HBIQnhuNpqToXYOqKqNU+eIOdNnG uq9Q== X-Forwarded-Encrypted: i=1; AJvYcCV71j6AV1QclHGhoML34POVaqAcSJG4R0huTNcMHGDGT6cxzFaCZABXdry/fsBW65bnt7wDTq9YQG7IOJx8@vger.kernel.org X-Gm-Message-State: AOJu0YzaOw53QvYrDLLOmHcwnDqi5ON3iHvijFiMnoim5HNv28b/QGMx fmkbW5GuMWrQq97JN5uQKy0FenqHuzr0oqQIOSNiorYL2zhhMdqRd08OCsi2sBb137VfDCYrx2a qvI/Qc/e7P0mk57jFgoOwziZPiNpalW7YALinfTvTVdi4+AkQ9d8hbXA= X-Google-Smtp-Source: AGHT+IFMiJ32db5lCffYpTxI1K34TKvT7SlmN4c4BQpJtea95Em5wyGT7ZDH04JbzrzXtpNDNJ8O69kA7RP2TO2zuSXuSjgMhZLg Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:1507:b0:4b7:c9b5:6765 with SMTP id 8926c6da1cb9f-4d017ee3993mr59704173.5.1725013141879; Fri, 30 Aug 2024 03:19:01 -0700 (PDT) Date: Fri, 30 Aug 2024 03:19:01 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008e11ef0620e3eb6a@google.com> Subject: Re: [syzbot] [iomap?] [xfs?] WARNING in iomap_write_begin From: syzbot To: brauner@kernel.org, chandan.babu@oracle.com, djwong@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, sunjunchao2870@gmail.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in iomap_write_begin XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791 XFS (loop0): Ending clean mount XFS (loop0): Quotacheck needed: Please wait. XFS (loop0): Quotacheck: Done. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6077 at fs/iomap/buffered-io.c:727 __iomap_write_begin fs/iomap/buffered-io.c:727 [inline] WARNING: CPU: 0 PID: 6077 at fs/iomap/buffered-io.c:727 iomap_write_begin+0x13f0/0x16f0 fs/iomap/buffered-io.c:830 Modules linked in: CPU: 0 UID: 0 PID: 6077 Comm: syz.0.15 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:__iomap_write_begin fs/iomap/buffered-io.c:727 [inline] RIP: 0010:iomap_write_begin+0x13f0/0x16f0 fs/iomap/buffered-io.c:830 Code: b5 0d 01 90 48 c7 c7 a0 54 fa 8b e8 da 19 2b ff 90 0f 0b 90 90 e9 74 ef ff ff e8 5b f1 68 ff e9 4b f6 ff ff e8 51 f1 68 ff 90 <0f> 0b 90 bb fb ff ff ff e9 e9 fe ff ff e8 3e f1 68 ff 90 0f 0b 90 RSP: 0018:ffffc90003e977c0 EFLAGS: 00010293 RAX: ffffffff822a858f RBX: 0000000000000080 RCX: ffff888020aeda00 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 RBP: ffffc90003e97a50 R08: ffffffff822a8294 R09: 1ffff11004494cf9 R10: dffffc0000000000 R11: ffffed1004494cfa R12: ffffc90003e979b0 R13: ffffc90003e97bf0 R14: ffffc90003e97990 R15: 0000000000000800 FS: 00007f4d396276c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001000 CR3: 0000000023f3a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_unshare_iter fs/iomap/buffered-io.c:1351 [inline] iomap_file_unshare+0x460/0x780 fs/iomap/buffered-io.c:1391 xfs_reflink_unshare+0x173/0x5f0 fs/xfs/xfs_reflink.c:1681 xfs_file_fallocate+0x6be/0xa50 fs/xfs/xfs_file.c:997 vfs_fallocate+0x553/0x6c0 fs/open.c:334 ksys_fallocate fs/open.c:357 [inline] __do_sys_fallocate fs/open.c:365 [inline] __se_sys_fallocate fs/open.c:363 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:363 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: 0033:0x7f4d387779f9 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:00007f4d39627038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f4d38905f80 RCX: 00007f4d387779f9 RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006 RBP: 00007f4d387e58ee R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4d38905f80 R15: 00007ffd9e61c108 Tested on: commit: ee9a43b7 Merge tag 'net-6.11-rc3' of git://git.kernel... git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=173e3eeb980000 kernel config: https://syzkaller.appspot.com/x/.config?x=9358cc4a2e37fd30 dashboard link: https://syzkaller.appspot.com/bug?extid=296b1c84b9cbf306e5a0 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=16b67cdb980000