WARNING in ext4_iomap

Date	Name	Commit	Repro	Result
2025/11/12	upstream (ToT)	24172e0d7990	C	[report] WARNING in ext4_iomap_begin

Date

Name

Commit

Repro

Result

2025/11/12

upstream (ToT)

24172e0d7990

[report] WARNING in ext4_iomap_begin

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.1	WARNING in ext4_iomap_begin (2) origin:upstream	-1	C		done	10	199d	284d	3/3	fixed on 2025/07/16 19:57
linux-6.1	WARNING in ext4_iomap_begin	-1				1	890d	890d	0/3	auto-obsoleted due to no activity on 2023/11/02 21:33
upstream	WARNING in ext4_iomap_begin ext4	-1	C	inconclusive	error	16	1239d	1267d	0/29	auto-obsoleted due to no activity on 2023/04/04 00:54
linux-6.1	WARNING in ext4_iomap_begin (3)	-1				2	125d	130d	0/3	auto-obsoleted due to no activity on 2025/12/07 16:01
upstream	WARNING in ext4_iomap_begin (2) ext4	-1	C	done		7	814d	929d	25/29	fixed on 2023/12/21 03:45
linux-5.15	WARNING in ext4_iomap_begin origin:upstream	-1	C		done	8	206d	240d	3/3	fixed on 2025/07/14 10:31
upstream	WARNING in ext4_iomap_begin (3) ext4	-1	C	inconclusive		83	2h05m	427d	0/29	upstream: reported C repro on 2024/10/31 12:34
linux-5.15	WARNING in ext4_iomap_begin (2) origin:upstream	-1	C			9	14d	143d	0/3	upstream: reported C repro on 2025/08/11 00:02

Created	Duration	User	Patch	Repo	Result
2025/12/09 00:00	3h00m	bisect fix		linux-6.6.y	OK (0) job log log

Created

Duration

User

Patch

Repo

Result

2025/12/09 00:00

3h00m

bisect fix

linux-6.6.y

OK (0) job log log

EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6084 at fs/ext4/inode.c:3388 ext4_iomap_begin+0x95f/0xad0 fs/ext4/inode.c:3388 Modules linked in: CPU: 0 PID: 6084 Comm: syz.2.40 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:ext4_iomap_begin+0x95f/0xad0 fs/ext4/inode.c:3388 Code: 3b 84 24 00 01 00 00 75 6d 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 9b 2e 55 ff e9 77 ff ff ff e8 91 2e 55 ff <0f> 0b 41 be de ff ff ff 49 bf 00 00 00 00 00 fc ff df eb 88 89 d9 RSP: 0000:ffffc90003a07640 EFLAGS: 00010293 RAX: ffffffff8230622f RBX: ffff88807251978a RCX: ffff88802a3bbc00 RDX: 0000000000000000 RSI: 00000000000000d4 RDI: 0000000000000000 RBP: ffffc90003a07790 R08: ffff888072519457 R09: 1ffff1100e4a328a R10: dffffc0000000000 R11: ffffed100e4a328b R12: 00000000000000d4 R13: 1ffff1100e4a32f1 R14: 000000000000000b R15: 0000000000000000 FS: 00007fe3cb91d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000000f4 CR3: 0000000060dd3000 CR4: 00000000003506f0 Call Trace: <TASK> iomap_iter+0x6b1/0xec0 fs/iomap/iter.c:91 __iomap_dio_rw+0xb9c/0x1c40 fs/iomap/direct-io.c:658 iomap_dio_rw+0x45/0xa0 fs/iomap/direct-io.c:748 ext4_dio_write_iter fs/ext4/file.c:577 [inline] ext4_file_write_iter+0x13ff/0x1870 fs/ext4/file.c:696 call_write_iter include/linux/fs.h:2018 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x43b/0x940 fs/read_write.c:584 ksys_pwrite64 fs/read_write.c:699 [inline] __do_sys_pwrite64 fs/read_write.c:709 [inline] __se_sys_pwrite64 fs/read_write.c:706 [inline] __x64_sys_pwrite64+0x195/0x220 fs/read_write.c:706 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe3ca98f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe3cb91d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007fe3cabe5fa0 RCX: 00007fe3ca98f749 RDX: 00000000fffffd55 RSI: 0000200000000280 RDI: 0000000000000004 RBP: 00007fe3caa13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe3cabe6038 R14: 00007fe3cabe5fa0 R15: 00007fff79a8eaf8 </TASK>

Crashes (6):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/12/20 14:30	linux-6.6.y	5fa4793a2d2d	d6526ea3	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)]	ci2-linux-6-6-kasan	WARNING in ext4_iomap_begin
2025/11/07 10:01	linux-6.6.y	0a805b6ea8cd	4e1406b4	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)]	ci2-linux-6-6-kasan	WARNING in ext4_iomap_begin
2025/12/30 19:56	linux-6.6.y	5fa4793a2d2d	d6526ea3	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	WARNING in ext4_iomap_begin
2025/11/06 20:49	linux-6.6.y	0a805b6ea8cd	4e1406b4	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	WARNING in ext4_iomap_begin
2025/09/22 13:42	linux-6.6.y	af1544b5d072	0ac7291c	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	WARNING in ext4_iomap_begin
2025/08/27 01:07	linux-6.6.y	bb9c90ab9c5a	e12e5ba4	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	WARNING in ext4_iomap_begin

Crashes (6):

Assets (help?)