From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f205.google.com (mail-il1-f205.google.com [209.85.166.205]) (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 CAA051DEFC5 for ; Fri, 28 Feb 2025 07:59:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740729573; cv=none; b=reTQVnez48awmw8UyLb25bTT+Pzj6jdsXJEkpS1gjAv/QGH/jULdMVOvYt7lfQRDQA/CZZxWRYoNldoEIg+WEOcODrNASCmIcDBJdXfMb50OhSknbsblKf8b/CECO0gFRtvf7irbquC5OeUbX/5EMyBEVIJeEHxPzmZ3oPfbuIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740729573; c=relaxed/simple; bh=63piQ8ItITadkwFWIcbDth9Z3jrcFZkDqN/LSgCU448=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=OcIGi+kdt5xg5lbJqWyAjYeU4jLOlTfzvTzdNIX8FfyIBUOK5ehW/14D1zLc6C/2RTGTroAivLUoMTGluE9jnYoSCGyjqxeLiRUfkkf2AtjrFlnfxY/5RuUOKr6gud5oH9+vRB4m1y6nDf/u0J1ylHL8Ipxrczi3MxHPVSyi7lk= 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=209.85.166.205 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-f205.google.com with SMTP id e9e14a558f8ab-3ce8dadfb67so20799325ab.1 for ; Thu, 27 Feb 2025 23:59:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740729571; x=1741334371; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=znt0tIz2WSnTQBMcXdT5PxAi7Th8sr34BunIklu59O0=; b=U6Tvo3lpfBT2wbtAZSEAZmryKISV4s5St3Jd9vZ27bvbr8HBjK+TIlHRxm+qNJZhCv 8xYug04e3IeIzYqLjDUepNx0Tktjm5OjWibIWUAWqKseAlgHJrkTcFjXd5gkq7c9ygKT rbNvsTrEzpjYHR9AdUamFg9MfdJRtqySkJnZLzjou+HAzF2w5vJbtJ7YAj8di/JiF3za 2WDBy4h2Mhky82a5afO1jZFuQ9KJ0QqXfoAhCNSPaqHROZbWqoEhDKexVvSz66ScKaPR KsNGjY6033QxPMCWEzVJTa77yHmtVW5qEK2iwKmg5i+Nq5uryYrbvWOcb+uRjHMwsosx mvoQ== X-Forwarded-Encrypted: i=1; AJvYcCXRzisu6t+lE6xJwK3UvSvsr3fInXd9Q2zSJKjISpUmm+4ql8V5TwPqr4phwRBSPgEXLsVFErxpC4n2FuWb7Q==@vger.kernel.org X-Gm-Message-State: AOJu0YzKn2U4yLFusSlDTuuntHApFd3rQDfVZS9RF8Pcdc5Hi+u4Z6vw xn/7hkXnRwYle0g0WtT4ybSpf1pSDSeZguCeCf5Lh5hkDCWyOVNmGq6eVAQggzcxnUpMZWrLcGe E5q2LInFAbp60h74kS6oYxCjn4bY9FX95W/VCpyZ+As+Orn5o+5BD8RE= X-Google-Smtp-Source: AGHT+IHBmE5QLfh5Lsm6B58SxhZO33IvQigSPu2IetXosJjOk9yLvoEe+gx89Ksc3ABGNP5NhUe3WT0E2BE+vH5CUKIdVyBbQFFw Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:214e:b0:3d3:e470:6d5 with SMTP id e9e14a558f8ab-3d3e6e70825mr20950715ab.13.1740729570816; Thu, 27 Feb 2025 23:59:30 -0800 (PST) Date: Thu, 27 Feb 2025 23:59:30 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67c16ce2.050a0220.1baf.000e.GAE@google.com> Subject: [syzbot] [bcachefs?] INFO: task hung in invalidate_inode_pages2_range (3) From: syzbot To: kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 1e15510b71c9 Merge tag 'net-6.14-rc5' of git://git.kernel... git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=164eca97980000 kernel config: https://syzkaller.appspot.com/x/.config?x=8de9cc84d5960254 dashboard link: https://syzkaller.appspot.com/bug?extid=de1434c5355cc909b734 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11d297b8580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=119af064580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ac4579f25f13/disk-1e15510b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c342a1d6167e/vmlinux-1e15510b.xz kernel image: https://storage.googleapis.com/syzbot-assets/d985a65df547/bzImage-1e15510b.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/4860c171e0ab/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+de1434c5355cc909b734@syzkaller.appspotmail.com INFO: task syz-executor337:5843 blocked for more than 143 seconds. Not tainted 6.14.0-rc4-syzkaller-00169-g1e15510b71c9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor337 state:D stack:11416 pid:5843 tgid:5842 ppid:5840 task_flags:0x400140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5378 [inline] __schedule+0x18bc/0x4c40 kernel/sched/core.c:6765 __schedule_loop kernel/sched/core.c:6842 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6857 io_schedule+0x8d/0x110 kernel/sched/core.c:7690 folio_wait_bit_common+0x839/0xee0 mm/filemap.c:1318 folio_lock include/linux/pagemap.h:1163 [inline] invalidate_inode_pages2_range+0x48f/0x960 mm/truncate.c:637 bch2_write_invalidate_inode_pages_range+0xce/0x120 fs/bcachefs/fs-io-pagecache.c:68 bch2_direct_write+0x2ebf/0x3190 fs/bcachefs/fs-io-direct.c:653 bch2_write_iter+0x19d/0x2cd0 fs/bcachefs/fs-io-buffered.c:1047 iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1164 splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 do_sendfile+0x564/0x8a0 fs/read_write.c:1363 __do_sys_sendfile64 fs/read_write.c:1424 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410 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: 0033:0x7f49c6338bd9 RSP: 002b:00007f49c62ef218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f49c63c66c8 RCX: 00007f49c6338bd9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000005 RBP: 00007f49c63c66c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000800000009 R11: 0000000000000246 R12: 00007f49c6392ae4 R13: 0031656c69662f2e R14: 0000400000000240 R15: 0000400000000040 INFO: task syz-executor337:5854 blocked for more than 143 seconds. Not tainted 6.14.0-rc4-syzkaller-00169-g1e15510b71c9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor337 state:D stack:19160 pid:5854 tgid:5842 ppid:5840 task_flags:0x440140 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5378 [inline] __schedule+0x18bc/0x4c40 kernel/sched/core.c:6765 __schedule_loop kernel/sched/core.c:6842 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6857 __bch2_two_state_lock+0x229/0x2c0 fs/bcachefs/two_state_shared_lock.c:7 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:55 [inline] bch2_readahead+0x9e1/0x1240 fs/bcachefs/fs-io-buffered.c:272 read_pages+0x179/0x570 mm/readahead.c:161 page_cache_ra_order+0xa36/0xca0 mm/readahead.c:516 filemap_get_pages+0x59a/0x1fb0 mm/filemap.c:2580 filemap_splice_read+0x68e/0xef0 mm/filemap.c:2971 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x4af/0xc80 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 do_sendfile+0x564/0x8a0 fs/read_write.c:1363 __do_sys_sendfile64 fs/read_write.c:1424 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410 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: 0033:0x7f49c6338bd9 RSP: 002b:00007f49c62ce218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f49c63c66d8 RCX: 00007f49c6338bd9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000006 RBP: 00007f49c63c66d0 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000e3aa6ea R11: 0000000000000246 R12: 00007f49c6392ae4 R13: 0031656c69662f2e R14: 0000400000000240 R15: 0000400000000040 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8eb38fa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8eb38fa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8eb38fa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6746 2 locks held by getty/5583: #0: ffff88803112f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x616/0x1770 drivers/tty/n_tty.c:2211 1 lock held by syz-executor337/5843: #0: ffff88807c384420 (sb_writers#9){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1163 1 lock held by syz-executor337/5854: #0: ffff888077d68a80 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:932 [inline] #0: ffff888077d68a80 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: page_cache_ra_order+0x45d/0xca0 mm/readahead.c:492 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.14.0-rc4-syzkaller-00169-g1e15510b71c9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline] watchdog+0x1058/0x10a0 kernel/hung_task.c:399 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111 --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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