ci2 starts bisection 2025-01-25 21:26:52.041828336 +0000 UTC m=+62202.036782808
bisecting fixing commit since 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907
building syzkaller on 96eb609f6eb9558e2fab491a2c63a11bb0556471
ensuring issue is reproducible on original commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907

testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c2edda71d9ea424c1e95c5be73dcce9043a0c7694872170c53bf77de7c009450
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d3737fa0c770fb68f3cc59a7f9e0d161684d217a13f6e132c9a564f444a5afcd
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
the bug reproduces without the instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
kconfig minimization: base=4037 full=8185 leaves diff=2110
split chunks (needed=false): <2110>
split chunk #0 of len 2110 into 5 parts
testing without sub-chunk 1/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e2a27e16c8629b434898132dcf2a0cb5a71ace4d219a8f8669e26011a05c93f0
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e18f94be727060f982dbf92532a24c07a641219c76c6efe36a206a2069643d8a
run #0: crashed: WARNING in ext4_iomap_begin
run #1: crashed: WARNING in ext4_iomap_begin
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: WARNING in ext4_iomap_begin
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: WARNING in ext4_iomap_begin
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: WARNING in ext4_iomap_begin
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: WARNING in ext4_iomap_begin, types: [WARNING BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d3989950b57c4e9ffc4c6c6cd8a003e8d6fbfd5e8514b6c7aca008c53d397c86
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in ext4_write_inline_data_end
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: WARNING in ext4_iomap_begin
run #9: crashed: WARNING in ext4_iomap_begin
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e1e730b2da3fcc55ab7d3dd45b505391717698e82b1807ef80a421064953d9c5
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: WARNING in ext4_iomap_begin
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: WARNING in ext4_iomap_begin
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: WARNING in ext4_iomap_begin
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: WARNING in ext4_iomap_begin
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG WARNING]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c6909fa1f38e061e95f39af2a91fd1d6371269350659e004fee47fea918a3d97
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in ext4_write_inline_data_end
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: WARNING in ext4_iomap_begin
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
the chunk can be dropped
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing current HEAD 405057718a1f9074133979a9f2ff0c9fa4a19948
testing commit 405057718a1f9074133979a9f2ff0c9fa4a19948 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4572cf83be0000d4af68bddfedbd6f167e59204dc496c12d0bb3b8bc0be8902a
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: WARNING in ext4_iomap_begin
run #4: crashed: WARNING in ext4_iomap_begin
run #5: crashed: WARNING in ext4_iomap_begin
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG WARNING]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h52m41.674726883s (build: 1h39m45.209510955s, test: 1h6m33.31530129s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'kgdb-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
crash: kernel BUG in ext4_write_inline_data_end
EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:235!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI
CPU: 0 UID: 0 PID: 2869 Comm: syz.3.17 Not tainted 6.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:ext4_write_inline_data fs/ext4/inline.c:235 [inline]
RIP: 0010:ext4_write_inline_data_end+0x438/0x440 fs/ext4/inline.c:774
Code: e6 ff 90 0f 0b 4c 89 f7 48 c7 c6 70 ac 43 82 e8 0e 3b e6 ff 90 0f 0b 4c 89 f7 48 c7 c6 e4 63 42 82 e8 fc 3a e6 ff 90 0f 0b 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0000:ffffc9000229fc70 EFLAGS: 00010216
RAX: 00000000000000d4 RBX: 0000000000000000 RCX: 0000000000001006
RDX: 000000000000003c RSI: 0000000000000007 RDI: ffff888115d469d8
RBP: 0000000000000006 R08: 0000000000000004 R09: ffff88810dead000
R10: 000000000000005c R11: ffff88811b1b42a4 R12: ffff888115da8c08
R13: 0000000000001000 R14: ffffea0004729240 R15: 0000000000000006
FS:  00007fd9bfe7f6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd9bfe5ed58 CR3: 0000000107b2a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 generic_perform_write+0x195/0x260 mm/filemap.c:4147
 ext4_buffered_write_iter+0xbf/0x140 fs/ext4/file.c:299
 ext4_file_write_iter+0x37b/0x7b0
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0x309/0x4a0 fs/read_write.c:679
 ksys_write+0x73/0xe0 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xe0/0x1f0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd9c03fe719
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:00007fd9bfe7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd9c05b5f80 RCX: 00007fd9c03fe719
RDX: 0000000000001006 RSI: 0000000020006c00 RDI: 0000000000000004
RBP: 00007fd9c047132e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd9c05b5f80 R15: 00007ffdffde14a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_write_inline_data fs/ext4/inline.c:235 [inline]
RIP: 0010:ext4_write_inline_data_end+0x438/0x440 fs/ext4/inline.c:774
Code: e6 ff 90 0f 0b 4c 89 f7 48 c7 c6 70 ac 43 82 e8 0e 3b e6 ff 90 0f 0b 4c 89 f7 48 c7 c6 e4 63 42 82 e8 fc 3a e6 ff 90 0f 0b 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0000:ffffc9000229fc70 EFLAGS: 00010216
RAX: 00000000000000d4 RBX: 0000000000000000 RCX: 0000000000001006
RDX: 000000000000003c RSI: 0000000000000007 RDI: ffff888115d469d8
RBP: 0000000000000006 R08: 0000000000000004 R09: ffff88810dead000
R10: 000000000000005c R11: ffff88811b1b42a4 R12: ffff888115da8c08
R13: 0000000000001000 R14: ffffea0004729240 R15: 0000000000000006
FS:  00007fd9bfe7f6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd9bfe5ed58 CR3: 0000000107b2a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400