ci2 starts bisection 2024-03-31 00:52:18.293798703 +0000 UTC m=+85095.025116730
bisecting fixing commit since f73aafc29bee0c1674374fd22e8f90f95c91ed3f
building syzkaller on 058b3a5a6a945a55767811552eb7b9f4a20307f8
ensuring issue is reproducible on original commit f73aafc29bee0c1674374fd22e8f90f95c91ed3f

testing commit f73aafc29bee0c1674374fd22e8f90f95c91ed3f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bfacd550ab0b43bd7b873b7ff0290b56b7bdd9f755a2bfedc9732770b8bee44c
all runs: crashed: kernel BUG in ext4_split_extent_at
representative crash: kernel BUG in ext4_split_extent_at, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit f73aafc29bee0c1674374fd22e8f90f95c91ed3f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 840bd7e76b59e11de29f2675aa3794a378a517639389d8298d9af9f0ec2f9007
all runs: crashed: kernel BUG in ext4_split_extent_at
representative crash: kernel BUG in ext4_split_extent_at, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
kconfig minimization: base=5179 full=6523 leaves diff=250
split chunks (needed=false): <250>
split chunk #0 of len 250 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit f73aafc29bee0c1674374fd22e8f90f95c91ed3f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 11fae1b05e1f9141a8eafd53b1549761d0eb4c77773094d9fbe9d7a0ad4ae632
all runs: crashed: kernel BUG in ext4_split_extent_at
representative crash: kernel BUG in ext4_split_extent_at, types: [BUG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit f73aafc29bee0c1674374fd22e8f90f95c91ed3f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b7c3fb774e832802dd4cf5d3c04be276ac04e345064edf9f28280f11fc904eae
run #0: crashed: kernel BUG in ext4_split_extent_at
run #1: crashed: kernel BUG in ext4_split_extent_at
run #2: crashed: kernel BUG in ext4_split_extent_at
run #3: crashed: kernel BUG in ext4_split_extent_at
run #4: crashed: kernel BUG in ext4_split_extent_at
run #5: crashed: kernel BUG in ext4_split_extent_at
run #6: crashed: kernel BUG in ext4_split_extent_at
run #7: crashed: kernel BUG in ext4_split_extent_at
run #8: OK
run #9: OK
representative crash: kernel BUG in ext4_split_extent_at, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit f73aafc29bee0c1674374fd22e8f90f95c91ed3f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ed251e87d3161e4ba018acd922c147aca947629bf9e958419b87e03f86ce176d
run #0: crashed: kernel BUG in ext4_split_extent_at
run #1: crashed: kernel BUG in ext4_split_extent_at
run #2: crashed: kernel BUG in ext4_split_extent_at
run #3: crashed: kernel BUG in ext4_split_extent_at
run #4: crashed: kernel BUG in ext4_split_extent_at
run #5: crashed: kernel BUG in ext4_split_extent_at
run #6: crashed: kernel BUG in ext4_split_extent_at
run #7: OK
run #8: OK
run #9: OK
representative crash: kernel BUG in ext4_split_extent_at, 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 f73aafc29bee0c1674374fd22e8f90f95c91ed3f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 27b62db6ba39808df95eeb5b75b1b55d0464df7adef19ac2bf8083d00cc3a6f0
run #0: crashed: kernel BUG in ext4_split_extent_at
run #1: crashed: kernel BUG in ext4_split_extent_at
run #2: crashed: kernel BUG in ext4_split_extent_at
run #3: crashed: kernel BUG in ext4_split_extent_at
run #4: crashed: kernel BUG in ext4_split_extent_at
run #5: crashed: kernel BUG in ext4_split_extent_at
run #6: crashed: kernel BUG in ext4_split_extent_at
run #7: crashed: kernel BUG in ext4_split_extent_at
run #8: OK
run #9: OK
representative crash: kernel BUG in ext4_split_extent_at, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit f73aafc29bee0c1674374fd22e8f90f95c91ed3f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
failed building f73aafc29bee0c1674374fd22e8f90f95c91ed3f: net/socket.c:1225: undefined reference to `wext_handle_ioctl'
net/socket.c:3420: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:329: undefined reference to `wext_proc_init'
net/core/net-procfs.c:345: undefined reference to `wext_proc_exit'
minimized to 50 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_MBIM 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_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 WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF]
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing current HEAD 5b8114ec3c9234ea3c54ac6f60fb77904b713dc3
testing commit 5b8114ec3c9234ea3c54ac6f60fb77904b713dc3 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b755c6d3d43d63317a7e70a13a93cf0df5ba754f49fda1db592d04e2c0ff070d
run #0: crashed: kernel BUG in ext4_split_extent_at
run #1: crashed: kernel BUG in ext4_split_extent_at
run #2: crashed: kernel BUG in ext4_split_extent_at
run #3: crashed: kernel BUG in ext4_split_extent_at
run #4: crashed: kernel BUG in ext4_split_extent_at
run #5: crashed: kernel BUG in ext4_split_extent_at
run #6: crashed: kernel BUG in ext4_split_extent_at
run #7: crashed: kernel BUG in ext4_split_extent_at
run #8: OK
run #9: OK
representative crash: kernel BUG in ext4_split_extent_at, types: [BUG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h50m51.341621804s (build: 23m38.899650282s, test: 1h24m23.551338153s)
crash still not fixed or there were kernel test errors
commit msg: UPSTREAM: usb: dwc3: gadget: Don't disconnect if not started
crash: kernel BUG in ext4_split_extent_at
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4_extents.h:200!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 2577 Comm: syz-executor.2 Not tainted 6.1.68-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_split_extent_at+0x657/0x660 fs/ext4/extents.c:3222
Code: ff b3 01 e9 83 fa ff ff 0f 0b e9 ad fb ff ff 0f 0b e9 5d fc ff ff 0f 0b e9 d9 fe ff ff 0f 0b 0f 0b 0f 0b e8 3b aa ae 00 0f 0b <0f> 0b 0f 0b 0f 1f 44 00 00 55 48 89 e5 0f b7 46 04 8d 88 00 80 ff
RSP: 0018:ffffc90003fdf848 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88810c3b9128 RCX: 0000000000000000
RDX: ffff888117da91d8 RSI: 0000000000000000 RDI: ffff8881180d000c
RBP: ffffc90003fdf908 R08: ffff88810daafd68 R09: 000000000000003b
R10: 0000000000000010 R11: ffff888117da9180 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88810c3b9128
FS:  00007f9d6dd496c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b8d19bd58 CR3: 0000000117c65000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_split_extent+0x136/0x180 fs/ext4/extents.c:3385
 ext4_split_convert_extents fs/ext4/extents.c:3714 [inline]
 ext4_ext_handle_unwritten_extents fs/ext4/extents.c:3876 [inline]
 ext4_ext_map_blocks+0x9c8/0x1d30 fs/ext4/extents.c:4168
 ext4_map_blocks+0x2eb/0x660 fs/ext4/inode.c:651
 ext4_iomap_alloc fs/ext4/inode.c:3427 [inline]
 ext4_iomap_begin+0x22d/0x2f0 fs/ext4/inode.c:3477
 iomap_iter+0x1e5/0x350 fs/iomap/iter.c:74
 __iomap_dio_rw+0x40a/0x7e0 fs/iomap/direct-io.c:601
 iomap_dio_rw+0xc/0x40 fs/iomap/direct-io.c:690
 ext4_dio_write_iter fs/ext4/file.c:555 [inline]
 ext4_file_write_iter+0x4c5/0x6a0 fs/ext4/file.c:675
 call_write_iter include/linux/fs.h:2258 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x331/0x3f0 fs/read_write.c:584
 ksys_write+0x6c/0xd0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x16/0x20 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9d6d07c959
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9d6dd490c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9d6d19c050 RCX: 00007f9d6d07c959
RDX: 0000000000000012 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f9d6d0d8c88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9d6d19c050 R15: 00007ffe06c46348
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_ext_mark_unwritten fs/ext4/ext4_extents.h:200 [inline]
RIP: 0010:ext4_split_extent_at+0x657/0x660 fs/ext4/extents.c:3222
Code: ff b3 01 e9 83 fa ff ff 0f 0b e9 ad fb ff ff 0f 0b e9 5d fc ff ff 0f 0b e9 d9 fe ff ff 0f 0b 0f 0b 0f 0b e8 3b aa ae 00 0f 0b <0f> 0b 0f 0b 0f 1f 44 00 00 55 48 89 e5 0f b7 46 04 8d 88 00 80 ff
RSP: 0018:ffffc90003fdf848 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88810c3b9128 RCX: 0000000000000000
RDX: ffff888117da91d8 RSI: 0000000000000000 RDI: ffff8881180d000c
RBP: ffffc90003fdf908 R08: ffff88810daafd68 R09: 000000000000003b
R10: 0000000000000010 R11: ffff888117da9180 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88810c3b9128
FS:  00007f9d6dd496c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001578000 CR3: 0000000117c65000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400