ci2 starts bisection 2025-05-01 21:01:35.409060716 +0000 UTC m=+30304.791942250 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: 03bf4759588d4cc667e98b253fc11360423c12a699e2a4433897bfe9f6db9577 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: 4e425a0cc79bc0900d5e7bce2c9147c1df6c7b8d32b68eae01d9b15f3d0f7371 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 [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: cb9ed67c7e79e3f323bb38507e1ef3024cbe6b9f7d96bcddae496b77640c2769 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], 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: 576bbdb8bffcacdda0526c27433d8568ea8ec9310f5f34aa0708144819c4645a 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: 24666cf89b6e8f731b68dd49fc16a0598034c618869eab8e64b8f8786a148c1c 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], 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: 3f32597164acc2b04fd918117e526c5c0122f30d5dd2b3b6b4d8e40b53dc6c37 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 [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 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 [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 88c4075c39edc68c10e37ad8204adb0444ec5245 testing commit 88c4075c39edc68c10e37ad8204adb0444ec5245 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c60b3f89ed13d5f72d94d03ac3009db62e7f815f51e2aa0df3ee24a54dd360a7 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: 2h11m41.225516726s (build: 1h34m9.222572682s, test: 34m44.73539195s) crash still not fixed or there were kernel test errors commit msg: Merge branch 'android13-5.15' into android13-5.15-lts crash: kernel BUG in mb_mark_used ------------[ cut here ]------------ kernel BUG at fs/ext4/mballoc.c:1982! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 0 PID: 464 Comm: syz.2.16 Not tainted 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 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 1e aa 9e 00 66 66 RSP: 0018:ffffc900004b3c88 EFLAGS: 00010286 RAX: 0000000000008000 RBX: ffffc900004b3d30 RCX: ffff8881104d1800 RDX: 0000000080000000 RSI: ffffffff80000000 RDI: ffffc900004b3db8 RBP: ffffc900004b3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000c R11: 0003333222211113 R12: 000000007ffffff4 R13: 000000007ffffff4 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f7920ac86c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000400000015000 CR3: 0000000109b1b000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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: 0033:0x7f7921056169 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:00007f7920ac8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f792126efa0 RCX: 00007f7921056169 RDX: 0000400000000b40 RSI: 00000000c0185879 RDI: 0000000000000006 RBP: 00007f79210d72a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f792126efa0 R15: 00007ffc321bd258 Modules linked in: ---[ end trace 882a6b9d21d119b1 ]--- 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 1e aa 9e 00 66 66 RSP: 0018:ffffc900004b3c88 EFLAGS: 00010286 RAX: 0000000000008000 RBX: ffffc900004b3d30 RCX: ffff8881104d1800 RDX: 0000000080000000 RSI: ffffffff80000000 RDI: ffffc900004b3db8 RBP: ffffc900004b3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000c R11: 0003333222211113 R12: 000000007ffffff4 R13: 000000007ffffff4 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f7920ac86c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000400000015000 CR3: 0000000109b1b000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400