syzbot


WARNING in bch2_journal_flush_seq_async

Status: upstream: reported C repro on 2024/09/18 07:28
Subsystems: bcachefs
[Documentation on labels]
Reported-by: syzbot+d119b445ec739e7f3068@syzkaller.appspotmail.com
First crash: 31d, last: 17d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [bcachefs?] WARNING in bch2_journal_flush_seq_async 0 (2) 2024/09/19 21:08
Last patch testing requests (2)
Created Duration User Patch Repo Result
2024/10/12 20:59 18m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/09/19 21:08 19m pz010001011111@proton.me patch git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log

Sample crash report:
bcachefs (loop0): delete_dead_inodes... done
bcachefs (loop0): done starting filesystem
------------[ cut here ]------------
requested to flush journal seq 36028797018963972, but currently at 14
WARNING: CPU: 1 PID: 6404 at fs/bcachefs/journal.c:672 bch2_journal_flush_seq_async+0x668/0x6c0
Modules linked in:
CPU: 1 UID: 0 PID: 6404 Comm: syz-executor187 Not tainted 6.11.0-rc7-syzkaller-g5f5673607153 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bch2_journal_flush_seq_async+0x668/0x6c0
lr : bch2_journal_flush_seq_async+0x664/0x6c0 fs/bcachefs/journal.c:670
sp : ffff80009cb678e0
x29: ffff80009cb67960 x28: dfff800000000000 x27: 1fffe0001bb69537
x26: 1ffff0001396cf20 x25: 000000000000000e x24: ffff0000ddb4a9c8
x23: 0000000000000000 x22: 1fffe0001bb69539 x21: ffff0000ddb4a9b8
x20: ffff0000ddb4a380 x19: ffff8000927b7000 x18: 0000000000000008
x17: 0000000000000000 x16: ffff800083032784 x15: 0000000000000001
x14: 1fffe000366d7a5a x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000003 x10: 0000000000ff0100 x9 : ab30ddaea468da00
x8 : ab30ddaea468da00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80009cb67038 x4 : ffff80008f65b620 x3 : ffff8000806051a0
x2 : 0000000000000001 x1 : 0000000100000001 x0 : 0000000000000000
Call trace:
 bch2_journal_flush_seq_async+0x668/0x6c0
 bch2_journal_flush_seq+0xe8/0x280 fs/bcachefs/journal.c:759
 bch2_flush_inode+0x220/0x390 fs/bcachefs/fs-io.c:185
 bch2_fsync+0x1a0/0x44c fs/bcachefs/fs-io.c:205
 vfs_fsync_range fs/sync.c:188 [inline]
 vfs_fsync fs/sync.c:202 [inline]
 do_fsync fs/sync.c:212 [inline]
 __do_sys_fsync fs/sync.c:220 [inline]
 __se_sys_fsync fs/sync.c:218 [inline]
 __arm64_sys_fsync+0x178/0x1c0 fs/sync.c:218
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
irq event stamp: 71336
hardirqs last  enabled at (71335): [<ffff800080388420>] __up_console_sem kernel/printk/printk.c:341 [inline]
hardirqs last  enabled at (71335): [<ffff800080388420>] __console_unlock kernel/printk/printk.c:2801 [inline]
hardirqs last  enabled at (71335): [<ffff800080388420>] console_unlock+0x18c/0x3d4 kernel/printk/printk.c:3120
hardirqs last disabled at (71336): [<ffff80008b3363f4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470
softirqs last  enabled at (70998): [<ffff8000800307f8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (70996): [<ffff8000800307c4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---

Crashes (17):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/17 16:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 c673ca06 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in bch2_journal_flush_seq_async
2024/09/16 00:44 upstream d42f7708e27c 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in bch2_journal_flush_seq_async
2024/09/28 14:32 upstream ad46e8f95e93 ba29ff75 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/27 09:16 upstream 075dbe9f6e3c 9314348a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/26 13:58 upstream 11a299a7933e 9314348a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/25 20:18 upstream 684a64bf32b6 0b45cac3 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/24 07:14 upstream 18ba6034468e 89298aad .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/22 13:17 upstream 88264981f208 6f888b75 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/21 07:09 upstream 1868f9d0260e 6f888b75 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/19 13:25 upstream 932d2d1fcb2b 6f888b75 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/19 05:53 upstream 4a39ac5b7d62 c673ca06 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/16 23:21 upstream adfc3ded5c33 49cf0773 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/16 07:52 upstream 98f7e32f20d2 08d8a733 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/14 21:13 upstream b7718454f937 08d8a733 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/14 07:20 upstream e936e7d4a83b ff60e2ca .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in bch2_journal_flush_seq_async
2024/09/20 05:35 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in bch2_journal_flush_seq_async
2024/09/17 16:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in bch2_journal_flush_seq_async
* Struck through repros no longer work on HEAD.