ci2 starts bisection 2025-07-18 23:21:04.560678759 +0000 UTC m=+12648.500304126
bisecting fixing commit since cf6ed0f1511dde4812a5a30a1450af323934dad9
building syzkaller on 3d2f584ddab119da50e8a8d26765aa98d3b33c02
ensuring issue is reproducible on original commit cf6ed0f1511dde4812a5a30a1450af323934dad9

testing commit cf6ed0f1511dde4812a5a30a1450af323934dad9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 093abbeea045d2a59d1cb243a7fc3a3c2139c6bdc025e6f4dacd9d4cb2e0670b
all runs: crashed: kernel BUG in ext4_create_inline_data
representative crash: kernel BUG in ext4_create_inline_data, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit cf6ed0f1511dde4812a5a30a1450af323934dad9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f7b2b38afd5578752346bedd7fb67b1aba0e618606b8395a85d94145cb41b099
all runs: crashed: kernel BUG in ext4_create_inline_data
representative crash: kernel BUG in ext4_create_inline_data, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [memleak ubsan kasan locking atomic_sleep hang], they are not needed
kconfig minimization: base=4788 full=6022 leaves diff=244
split chunks (needed=false): <244>
split chunk #0 of len 244 into 5 parts
testing without sub-chunk 1/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit cf6ed0f1511dde4812a5a30a1450af323934dad9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ef6738b586a0494f1c7660674b3a2d61acbeb7ae8a76fd4ab4f5fcf08dc0cd4e
all runs: crashed: kernel BUG in ext4_create_inline_data
representative crash: kernel BUG in ext4_create_inline_data, types: [BUG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit cf6ed0f1511dde4812a5a30a1450af323934dad9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7fb68723c83065115334b03269c9d9ca8b0028f4279605d6b3e218c08eca2cc5
all runs: crashed: kernel BUG in ext4_create_inline_data
representative crash: kernel BUG in ext4_create_inline_data, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing commit cf6ed0f1511dde4812a5a30a1450af323934dad9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ce14ff69c9366b76da5691737af5309471743a378377a0a59a49443b008dee68
all runs: crashed: kernel BUG in ext4_create_inline_data
representative crash: kernel BUG in ext4_create_inline_data, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit cf6ed0f1511dde4812a5a30a1450af323934dad9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b81c70ce830d5f2908b29f480fdbb39d4169b3d71fb99c9d4e874010e1032920
all runs: crashed: kernel BUG in ext4_create_inline_data
representative crash: kernel BUG in ext4_create_inline_data, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit cf6ed0f1511dde4812a5a30a1450af323934dad9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building cf6ed0f1511dde4812a5a30a1450af323934dad9: net/socket.c:1128: undefined reference to `wext_handle_ioctl'
net/socket.c:3397: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:346: undefined reference to `wext_proc_exit'
net/core/net-procfs.c:330: undefined reference to `wext_proc_init'
minimized to 48 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM USB_XHCI_PCI_RENESAS WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS ZEROPLUS_FF]
disabling configs for [hang memleak ubsan kasan locking atomic_sleep], they are not needed
testing current HEAD 6de38b5f6c2b4da6703115c17f7d8814b93b735c
testing commit 6de38b5f6c2b4da6703115c17f7d8814b93b735c gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5820e3d91e79d915838cae3c8a923720785ab252fec2b0297bb427d022b322eb
all runs: crashed: kernel BUG in ext4_create_inline_data
representative crash: kernel BUG in ext4_create_inline_data, types: [BUG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 2h0m16.323512636s (build: 1h21m0.8552199s, test: 37m47.175266304s)
crash still not fixed or there were kernel test errors
commit msg: UPSTREAM: rtc: lib_test: add MODULE_LICENSE
crash: kernel BUG in ext4_create_inline_data
------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:300!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 455 Comm: syz.2.16 Not tainted 5.10.239-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ext4_create_inline_data+0x1c9/0x1d0 fs/ext4/inline.c:300
Code: 8b 45 c0 f0 ff 40 60 48 8d 55 c0 4c 89 e6 4c 89 ef e8 cb 8c 00 00 e9 53 ff ff ff f0 41 80 a4 24 bc fe ff ff 7f e9 44 ff ff ff <0f> 0b e8 e0 f0 97 00 55 48 89 e5 41 57 49 89 d7 41 56 41 55 4d 89
RSP: 0018:ffffc900007139d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000061
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90000713a10
RBP: ffffc90000713a60 R08: ffff88810936bcb4 R09: 0000000000000000
R10: ffff88810936c000 R11: 000000000000035c R12: ffff88810ca15898
R13: 0000000000000001 R14: ffffc900007139f8 R15: ffff88810ca15758
FS:  00007fe7343556c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000e40 CR3: 000000010e938000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_prepare_inline_data+0x81/0xc0 fs/ext4/inline.c:410
 ext4_try_to_write_inline_data+0x39e/0x6c0 fs/ext4/inline.c:700
 ext4_write_begin+0x575/0x6d0 fs/ext4/inode.c:1192
 generic_perform_write+0xbe/0x1b0 mm/filemap.c:3509
 ext4_buffered_write_iter+0x9f/0x150 fs/ext4/file.c:271
 ext4_file_write_iter+0x5b/0x840 fs/ext4/file.c:685
 call_write_iter include/linux/fs.h:2066 [inline]
 new_sync_write+0x105/0x190 fs/read_write.c:518
 vfs_write+0x1fb/0x290 fs/read_write.c:605
 ksys_write+0x62/0xe0 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x15/0x20 fs/read_write.c:667
 do_syscall_64+0x32/0x50 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fe7348e4969
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:00007fe734355038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe734b0bfa0 RCX: 00007fe7348e4969
RDX: 0000000000000009 RSI: 00002000000000c0 RDI: 0000000000000004
RBP: 00007fe734966ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe734b0bfa0 R15: 00007ffd87114338
Modules linked in:
---[ end trace 79d324a1148abb25 ]---
RIP: 0010:ext4_create_inline_data+0x1c9/0x1d0 fs/ext4/inline.c:300
Code: 8b 45 c0 f0 ff 40 60 48 8d 55 c0 4c 89 e6 4c 89 ef e8 cb 8c 00 00 e9 53 ff ff ff f0 41 80 a4 24 bc fe ff ff 7f e9 44 ff ff ff <0f> 0b e8 e0 f0 97 00 55 48 89 e5 41 57 49 89 d7 41 56 41 55 4d 89
RSP: 0018:ffffc900007139d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000061
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90000713a10
RBP: ffffc90000713a60 R08: ffff88810936bcb4 R09: 0000000000000000
R10: ffff88810936c000 R11: 000000000000035c R12: ffff88810ca15898
R13: 0000000000000001 R14: ffffc900007139f8 R15: ffff88810ca15758
FS:  00007fe7343556c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f09a26db000 CR3: 000000010e938000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400