kernel BUG in mapping_try

ID	Workflow	Correct	Bug	Created	Started	Finished	Revision	Error
d88fcbcf-e4a3-498c-8eb3-262022631a5e	repro	💥	kernel BUG in mapping_try_invalidate (2)	2026/03/26 09:57	2026/03/26 09:57	2026/03/26 09:57	c6143aacd8e1a01f2482ab5eec709f9949710cee	tool reproduce-crash failed: error: 0 params found, expected 14 <= x <= 16 args: map[ReproSyz:r0 = openat$nullb(0xffffffffffffff9c, &AUTO='/dev/nullb0\x00', 0x2, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x3, 0x11, r0, 0x0) madvise(&(0x7f0000000000/0x200000)=nil, 0x200000, 0xe) read(r0, &(0x7f0000200000/0x200000)=nil, 0x200000) ioctl$BLKFLSBUF(r0, 0x1261, 0x0) (async) fallocate(r0, 0x3, 0x1000, 0x1000)]
5bf5d575-0b65-4177-828c-2ebb55386ba9	repro	💥	kernel BUG in mapping_try_invalidate (2)	2026/03/24 20:18	2026/03/24 20:18	2026/03/24 20:50	b4723e5f74ba22106ffa2bcc9bd0e1eb3f7c962f	tool reproduce-crash failed: error: 0 params found, expected 14 <= x <= 16 args: map[ReproSyz:r0 = openat$nullb(0xffffffffffffff9c, &AUTO='/dev/nullb0\x00', 0x2, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x3, 0x11, r0, 0x0) madvise(&(0x7f0000000000/0x200000)=nil, 0x200000, 0xe) read(r0, &(0x7f0000200000/0x200000)=nil, 0x200000) ioctl$BLKFLSBUF(r0, 0x1261, 0x0) (async) fallocate(r0, 0x3, 0x1000, 0x1000)]
1c8289ad-b0c9-46b7-9f9c-3c21f1d11df7	repro	💥	kernel BUG in mapping_try_invalidate (2)	2026/03/24 12:08	2026/03/24 12:18	2026/03/24 20:18	971831e4896625f799f350fe4439dc0774b7154a+	Aborted: assigned agent has been inactive for too long

Title	Replies (including bot)	Last reply
[syzbot] [btrfs?] kernel BUG in mapping_try_invalidate (2)	0 (1)	2026/03/05 20:02

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[syzbot] [btrfs?] kernel BUG in mapping_try_invalidate (2)

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2026/03/05 20:02

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	kernel BUG in mapping_try_invalidate block	-1				1	832d	832d	0/29	auto-obsoleted due to no activity on 2024/05/17 02:37

Rank 🛈

upstream

kernel BUG in mapping_try_invalidate block

-1

832d

0/29

auto-obsoleted due to no activity on 2024/05/17 02:37

btrfs_get_bdev_and_sb+0x114/0x340 fs/btrfs/volumes.c:502 btrfs_open_one_device fs/btrfs/volumes.c:667 [inline] open_fs_devices+0x1d6/0x1440 fs/btrfs/volumes.c:1249 btrfs_get_tree_super fs/btrfs/super.c:1928 [inline] btrfs_get_tree_subvol fs/btrfs/super.c:2087 [inline] btrfs_get_tree+0xbe8/0x1910 fs/btrfs/super.c:2121 vfs_get_tree+0x92/0x2a0 fs/super.c:1754 fc_mount fs/namespace.c:1193 [inline] do_new_mount_fc fs/namespace.c:3758 [inline] do_new_mount+0x341/0xd30 fs/namespace.c:3834 do_mount fs/namespace.c:4167 [inline] __do_sys_mount fs/namespace.c:4383 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4360 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:2191! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 22201 Comm: syz.8.4752 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:find_lock_entries+0xb13/0xb20 mm/filemap.c:2190 Code: be c2 ff 4c 89 ff 48 c7 c6 20 b6 d7 8b e8 95 07 25 ff 90 0f 0b e8 0d be c2 ff 4c 89 ff 48 c7 c6 20 ae d7 8b e8 7e 07 25 ff 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900035475a0 EFLAGS: 00010246 RAX: 8363da50ef21d600 RBX: ffffea0000adbb88 RCX: 0000000000000046 RDX: 0000000000000002 RSI: ffffffff8e21eb50 RDI: ffff888032f6bd80 RBP: ffffc900035476f0 R08: ffffc90003546fc7 R09: 1ffff920006a8df8 R10: dffffc0000000000 R11: fffff520006a8df9 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000200 R15: ffffea0000adbb80 FS: 00007f9a4a7106c0(0000) GS:ffff88812538a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f8f617dac CR3: 0000000061bef000 CR4: 0000000000350ef0 Call Trace: <TASK> mapping_try_invalidate+0x1ae/0x4c0 mm/truncate.c:545 open_ctree+0x9bf/0x4190 fs/btrfs/disk-io.c:3314 btrfs_fill_super fs/btrfs/super.c:981 [inline] btrfs_get_tree_super fs/btrfs/super.c:1944 [inline] btrfs_get_tree_subvol fs/btrfs/super.c:2087 [inline] btrfs_get_tree+0x1061/0x1910 fs/btrfs/super.c:2121 vfs_get_tree+0x92/0x2a0 fs/super.c:1754 fc_mount fs/namespace.c:1193 [inline] do_new_mount_fc fs/namespace.c:3758 [inline] do_new_mount+0x341/0xd30 fs/namespace.c:3834 do_mount fs/namespace.c:4167 [inline] __do_sys_mount fs/namespace.c:4383 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4360 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9a4979e0ca Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9a4a70fe58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f9a4a70fee0 RCX: 00007f9a4979e0ca RDX: 00002000000055c0 RSI: 0000200000000140 RDI: 00007f9a4a70fea0 RBP: 00002000000055c0 R08: 00007f9a4a70fee0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140 R13: 00007f9a4a70fea0 R14: 000000000000559a R15: 0000200000000080 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:find_lock_entries+0xb13/0xb20 mm/filemap.c:2190 Code: be c2 ff 4c 89 ff 48 c7 c6 20 b6 d7 8b e8 95 07 25 ff 90 0f 0b e8 0d be c2 ff 4c 89 ff 48 c7 c6 20 ae d7 8b e8 7e 07 25 ff 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900035475a0 EFLAGS: 00010246 RAX: 8363da50ef21d600 RBX: ffffea0000adbb88 RCX: 0000000000000046 RDX: 0000000000000002 RSI: ffffffff8e21eb50 RDI: ffff888032f6bd80 RBP: ffffc900035476f0 R08: ffffc90003546fc7 R09: 1ffff920006a8df8 R10: dffffc0000000000 R11: fffff520006a8df9 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000200 R15: ffffea0000adbb80 FS: 00007f9a4a7106c0(0000) GS:ffff88812538a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f12f0df2fe0 CR3: 0000000061bef000 CR4: 0000000000350ef0

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Assets (help?)	Manager	Title
2026/05/17 00:55	upstream	6916d5703ddf	de5aae85	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	kernel BUG in mapping_try_invalidate
2026/03/17 06:28	upstream	2d1373e4246d	0737c18f	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-upstream-fs	kernel BUG in mapping_try_invalidate
2026/03/01 19:53	upstream	eb71ab2bf722	43249bac	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci2-upstream-fs	kernel BUG in mapping_try_invalidate

Crashes (3):

Assets (help?)