bcachefs (loop2): alloc_read... done bcachefs (loop2): stripes_read... done bcachefs (loop2): snapshots_read... ------------[ cut here ]------------ WARNING: CPU: 2 PID: 7588 at mm/util.c:649 kvmalloc_node_noprof+0x18e/0x1a0 mm/util.c:649 Modules linked in: CPU: 2 PID: 7588 Comm: syz-executor.2 Not tainted 6.10.0-rc1-syzkaller-00013-g2bfcfd584ff5 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:kvmalloc_node_noprof+0x18e/0x1a0 mm/util.c:649 Code: c9 1e 00 eb aa e8 d2 96 c1 ff 41 81 e4 00 20 00 00 31 ff 44 89 e6 e8 c1 91 c1 ff 45 85 e4 0f 85 1d ff ff ff e8 b3 96 c1 ff 90 <0f> 0b 90 31 ed e9 df fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 RSP: 0018:ffffc900042a7190 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 00000037fee80050 RCX: ffffc90024c48000 RDX: 0000000000040000 RSI: ffffffff81cce8bd RDI: 0000000000000005 RBP: 0000000000000400 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000000 R13: 00000000ffffffff R14: 1ffff92000854e40 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c200000(0063) knlGS:00000000f5ebbb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000032044000 CR3: 000000000020a000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __snapshot_t_mut+0x4f/0x280 fs/bcachefs/snapshot.c:171 snapshot_t_mut fs/bcachefs/snapshot.c:200 [inline] __bch2_mark_snapshot.constprop.0+0x753/0xa70 fs/bcachefs/snapshot.c:310 bch2_snapshots_read+0x34d/0xee0 fs/bcachefs/snapshot.c:1845 bch2_run_recovery_pass+0x8e/0x1a0 fs/bcachefs/recovery_passes.c:182 bch2_run_recovery_passes+0x33b/0x710 fs/bcachefs/recovery_passes.c:225 bch2_fs_recovery+0x259f/0x3db0 fs/bcachefs/recovery.c:807 bch2_fs_start+0x2e9/0x600 fs/bcachefs/super.c:1031 bch2_fs_open+0xde0/0x10f0 fs/bcachefs/super.c:2123 bch2_mount+0xd41/0x1090 fs/bcachefs/fs.c:1917 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8f/0x380 fs/super.c:1780 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x6e1/0x1f10 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __ia32_sys_mount+0x295/0x320 fs/namespace.c:3875 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72c9579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f5ebb400 EFLAGS: 00000292 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00000000f5ebb460 RCX: 0000000020000000 RDX: 00000000200000c0 RSI: 0000000000000000 RDI: 00000000f5ebb4a0 RBP: 00000000f5ebb460 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi