ci2 starts bisection 2025-06-02 21:41:36.744605479 +0000 UTC m=+39172.057763317
bisecting fixing commit since 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d
building syzkaller on e28266709dd2a1d1452d4a5bbf271700e10335c6
ensuring issue is reproducible on original commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d

testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0e227e7199fac46ff6471e40ab25e443e32666e7b5365cb8ad51415157af83a9
all runs: crashed: kernel BUG in mb_mark_used
representative crash: kernel BUG in mb_mark_used, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: fa9c64a1d836298ce03fd0051f370f9ec7c82edf0f139b8464a7206d3645e568
all runs: crashed: kernel BUG in mb_mark_used
representative crash: kernel BUG in mb_mark_used, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
kconfig minimization: base=4921 full=6215 leaves diff=255
split chunks (needed=false): <255>
split chunk #0 of len 255 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1cd5b4f38b1c602db29a58328c89bf633815095d180c69bff9b2e95d796c7875
all runs: crashed: kernel BUG in mb_mark_used
representative crash: kernel BUG in mb_mark_used, types: [BUG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 83813c4bc084110f897b30cd14643731ce1e93f1fd7078d41086558d2afbfd66
all runs: crashed: kernel BUG in mb_mark_used
representative crash: kernel BUG in mb_mark_used, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bc8ef2eb6e51ec819121417d3219fd09e05c095311ce8789b43d8559197129c8
all runs: crashed: kernel BUG in mb_mark_used
representative crash: kernel BUG in mb_mark_used, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 582dc57530ebc3d77bf538022cdd962e525aa822916461fe8dba91f2ef03e1eb
all runs: crashed: kernel BUG in mb_mark_used
representative crash: kernel BUG in mb_mark_used, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building 7d1f9b5c2ff516f9c97fffe9613799b29ef4946d: net/socket.c:1191: undefined reference to `wext_handle_ioctl'
net/socket.c:3390: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:343: undefined reference to `wext_proc_exit'
net/core/net-procfs.c:327: undefined reference to `wext_proc_init'
minimized to 51 configs; suspects: [HID_ZEROPLUS USB_MON 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 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 X86_X32 ZEROPLUS_FF]
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing current HEAD 4032a894ccb2cf50824f8f9be583e515ec22be87
testing commit 4032a894ccb2cf50824f8f9be583e515ec22be87 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9a428d30c32c3e94d121b326e3a780e7731106a770367fb754826434162098a3
all runs: crashed: kernel BUG in mb_mark_used
representative crash: kernel BUG in mb_mark_used, types: [BUG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 40m34.130890736s (build: 16m6.878856976s, test: 22m14.056317219s)
crash still not fixed or there were kernel test errors
commit msg: Merge android13-5.15 into android13-5.15-lts
crash: kernel BUG in mb_mark_used
EXT4-fs (loop2): mounted filesystem without journal. Opts: quota,bsdgroups,nobh,mb_optimize_scan=0x0000000000000001,abort,,errors=continue. Quota mode: writeback.
ext4 filesystem being mounted at /0/file0 supports timestamps until 2038-01-19 (0x7fffffff)
------------[ cut here ]------------
kernel BUG at fs/ext4/mballoc.c:1982!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 482 Comm: syz.2.16 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:mb_mark_used+0x2fe/0x320 fs/ext4/mballoc.c:1982
Code: 7e 18 e8 f5 ed ff ff 48 8b 45 d0 65 48 2b 04 25 28 00 00 00 75 23 48 83 c4 18 44 89 e8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 45 31 ed eb 90 e8 ce b7 9e 00 66 66
RSP: 0018:ffffc90000463c88 EFLAGS: 00010286
RAX: 0000000000008000 RBX: ffffc90000463d30 RCX: ffff88811338a000
RDX: 0000000080000000 RSI: ffffffff80000000 RDI: ffffc90000463db8
RBP: ffffc90000463cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000c R11: 0003333222211113 R12: 000000007ffffff4
R13: 000000007ffffff4 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fcf0095f6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000015000 CR3: 0000000113245000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_trim_extent fs/ext4/mballoc.c:6459 [inline]
 ext4_try_to_trim_range+0x23f/0x500 fs/ext4/mballoc.c:6519
 ext4_trim_all_free fs/ext4/mballoc.c:6581 [inline]
 ext4_trim_fs+0x2ce/0x420 fs/ext4/mballoc.c:6672
 __ext4_ioctl+0xc5c/0x1550 fs/ext4/ioctl.c:1122
 ext4_ioctl+0x9/0x10 fs/ext4/ioctl.c:1276
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x89/0xc0 fs/ioctl.c:860
 x64_sys_call+0x912/0x990 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fcf00eed169
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:00007fcf0095f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcf01105fa0 RCX: 00007fcf00eed169
RDX: 0000400000000b40 RSI: 00000000c0185879 RDI: 0000000000000006
RBP: 00007fcf00f6e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcf01105fa0 R15: 00007ffea6ee9738
 </TASK>
Modules linked in:
---[ end trace 711de7db13a3a02e ]---
RIP: 0010:mb_mark_used+0x2fe/0x320 fs/ext4/mballoc.c:1982
Code: 7e 18 e8 f5 ed ff ff 48 8b 45 d0 65 48 2b 04 25 28 00 00 00 75 23 48 83 c4 18 44 89 e8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 45 31 ed eb 90 e8 ce b7 9e 00 66 66
RSP: 0018:ffffc90000463c88 EFLAGS: 00010286
RAX: 0000000000008000 RBX: ffffc90000463d30 RCX: ffff88811338a000
RDX: 0000000080000000 RSI: ffffffff80000000 RDI: ffffc90000463db8
RBP: ffffc90000463cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000c R11: 0003333222211113 R12: 000000007ffffff4
R13: 000000007ffffff4 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fcf0095f6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000015000 CR3: 0000000113245000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400