syzbot


WARNING in bch2_fs_read_write_early

Status: fixed on 2024/07/09 19:14
Subsystems: bcachefs
[Documentation on labels]
Reported-by: syzbot+4366624c0b5aac4906cf@syzkaller.appspotmail.com
Fix commit: 1ba44217f825 bcachefs: delete_dead_snapshots() doesn't need to go RW
First crash: 34d, last: 25d
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] [bcachefs?] WARNING in bch2_fs_read_write_early 3 (6) 2024/06/17 13:52
[PATCH] bcachefs: bch2_fs_read_write_early needs to hold write lock 2 (2) 2024/06/17 13:50
Last patch testing requests (2)
Created Duration User Patch Repo Result
2024/06/15 10:48 23m eadavis@qq.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2ccbdf43d5e7 OK log
2024/06/15 02:27 22m eadavis@qq.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2ccbdf43d5e7 report log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 10 at fs/bcachefs/super.c:525 bch2_fs_read_write_early+0x8a/0xa0 fs/bcachefs/super.c:525
Modules linked in:
CPU: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: bcachefs_write_ref bch2_delete_dead_snapshots_work
RIP: 0010:bch2_fs_read_write_early+0x8a/0xa0 fs/bcachefs/super.c:525
Code: ac b8 76 fd 48 8d bb 78 02 00 00 be ff ff ff ff e8 0b cd d0 06 31 ff 89 c5 89 c6 e8 90 b3 76 fd 85 ed 75 c7 e8 87 b8 76 fd 90 <0f> 0b 90 eb bc 48 c7 c7 58 a2 e4 8f e8 c5 8b d2 fd eb 9b 0f 1f 00
RSP: 0018:ffffc900000d7910 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888041080000 RCX: ffffffff84172cc0
RDX: ffff888017e90000 RSI: ffffffff84172cc9 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffffffff272c7ee R12: ffff8880410801a8
R13: ffff888041080ae0 R14: 0000000000000001 R15: ffff88801f971800
FS:  0000000000000000(0000) GS:ffff88806b000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555581085788 CR3: 0000000025a9e000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_delete_dead_snapshots+0xfdc/0x4e50 fs/bcachefs/snapshot.c:1569
 bch2_delete_dead_snapshots_work+0x20/0x160 fs/bcachefs/snapshot.c:1690
 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (35):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/13 16:56 upstream 2ccbdf43d5e7 c2e07261 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/19 00:46 upstream 2ccbdf43d5e7 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in bch2_fs_read_write_early
2024/06/14 09:00 upstream 2ccbdf43d5e7 a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in bch2_fs_read_write_early
2024/06/14 05:19 upstream 2ccbdf43d5e7 a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in bch2_fs_read_write_early
2024/06/13 23:02 upstream 2ccbdf43d5e7 a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in bch2_fs_read_write_early
2024/06/13 14:33 upstream 2ccbdf43d5e7 a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in bch2_fs_read_write_early
2024/06/13 12:58 upstream 2ccbdf43d5e7 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in bch2_fs_read_write_early
2024/06/22 09:48 upstream 35bb670d65fc c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/21 01:48 upstream 50736169ecc8 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/20 12:56 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/20 04:03 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/18 23:18 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/18 01:22 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/15 21:23 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/15 08:20 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/14 05:57 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/13 22:49 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/13 15:09 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in bch2_fs_read_write_early
2024/06/20 06:49 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/19 11:50 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/19 00:26 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/18 23:01 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/18 22:59 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/18 22:59 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/18 19:40 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/18 08:33 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/18 02:18 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/17 18:15 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/17 04:54 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/16 22:01 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/16 10:42 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/15 13:35 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/15 04:54 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/14 20:02 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
2024/06/13 23:03 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in bch2_fs_read_write_early
* Struck through repros no longer work on HEAD.