ci2 starts bisection 2025-03-27 00:21:03.960503795 +0000 UTC m=+28367.491430021 bisecting fixing commit since 1ac09f5c057146455dc10fccd52a8f5f34039fb0 building syzkaller on ef44b750e8fab8d6d5cb84920680581b13e0d470 ensuring issue is reproducible on original commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c29ca274cb4978a337751a8a710e39d0d6d2414f6329da6ea70843f0699b92ad all runs: crashed: kernel BUG in ext4_inline_data_truncate representative crash: kernel BUG in ext4_inline_data_truncate, types: [BUG] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dd46d5622764b48513744bb259d714bdd10a5cdecb06e87654eeb39242762288 all runs: crashed: kernel BUG in ext4_inline_data_truncate representative crash: kernel BUG in ext4_inline_data_truncate, types: [BUG] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=5179 full=6548 leaves diff=264 split chunks (needed=false): <264> split chunk #0 of len 264 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 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7144a4e7607fe378704af1e0c52eeea8aca9b456ce6ef01927a9355b7f46c33e all runs: crashed: kernel BUG in ext4_inline_data_truncate representative crash: kernel BUG in ext4_inline_data_truncate, types: [BUG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 770474b393ae15a4110ad246d4e8a02e1aa9281c062a3ace69d39d19227490d1 all runs: crashed: kernel BUG in ext4_inline_data_truncate representative crash: kernel BUG in ext4_inline_data_truncate, 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 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9d120189005becc72631f089291b5a4b5123d160232cf110dd4e822a66c3853d run #0: basic kernel testing failed: lost connection to test machine run #1: basic kernel testing failed: lost connection to test machine run #2: basic kernel testing failed: lost connection to test machine run #3: basic kernel testing failed: lost connection to test machine run #4: basic kernel testing failed: lost connection to test machine run #5: crashed: kernel BUG in ext4_inline_data_truncate run #6: crashed: kernel BUG in ext4_inline_data_truncate run #7: crashed: kernel BUG in ext4_inline_data_truncate run #8: crashed: kernel BUG in ext4_inline_data_truncate run #9: crashed: kernel BUG in ext4_inline_data_truncate representative crash: kernel BUG in ext4_inline_data_truncate, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: adfb5be7f144c0e647c16904757e6deac5c3531e25768d7afbbd3a5f921cee27 all runs: crashed: kernel BUG in ext4_inline_data_truncate representative crash: kernel BUG in ext4_inline_data_truncate, types: [BUG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 1ac09f5c057146455dc10fccd52a8f5f34039fb0: net/socket.c:1245: undefined reference to `wext_handle_ioctl' net/socket.c:3447: 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 52 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_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 V4L2_ASYNC V4L2_FWNODE VIDEO_CAMERA_SENSOR 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 [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 1c9aeb1ce34bbaaeaabac66dba309a5a43931f0c testing commit 1c9aeb1ce34bbaaeaabac66dba309a5a43931f0c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b0171e49437e444eacda0583c24ef5876d05b53c372138f9b4c5b2ecb3d7026f all runs: crashed: kernel BUG in ext4_inline_data_truncate representative crash: kernel BUG in ext4_inline_data_truncate, types: [BUG] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h28m14.175290118s (build: 41m4.308294858s, test: 43m53.300046354s) crash still not fixed or there were kernel test errors commit msg: Merge tag 'android14-6.1.129_r00' into android14-6.1 crash: kernel BUG in ext4_inline_data_truncate ------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:2005! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 1 PID: 452 Comm: syz.2.16 Not tainted 6.1.129-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:ext4_inline_data_truncate+0x41a/0x420 fs/ext4/inline.c:2005 Code: 04 00 41 89 c5 85 c0 0f 85 9d fe ff ff e9 45 fe ff ff 41 bd f4 ff ff ff e9 32 fe ff ff 41 89 c5 e9 85 fe ff ff e8 16 a0 ae 00 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec RSP: 0018:ffffc90000797b98 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88810d2fc128 RCX: 0000000000000108 RDX: 0000000000000100 RSI: ffffc90000797bb8 RDI: ffff88810d2fc168 RBP: ffffc90000797c48 R08: ffffc90000797b68 R09: ffffffff814d31ac R10: 0000000000000080 R11: 00000000000007a7 R12: 0000000000000078 R13: 0000000000000000 R14: 0000000000000002 R15: ffff88810d2fc168 FS: 0000555564675500(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f100df70220 CR3: 000000011bb4c000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_truncate+0x132/0x440 fs/ext4/inode.c:4246 ext4_evict_inode+0x550/0x740 fs/ext4/inode.c:286 evict+0x193/0x2f0 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x1af/0x270 fs/inode.c:1860 dentry_unlink_inode+0xfb/0x100 fs/dcache.c:405 __dentry_kill+0x11c/0x1e0 fs/dcache.c:611 dentry_kill+0x63/0x110 fs/dcache.c:-1 dput+0x3b/0x60 fs/dcache.c:918 __fput+0x10e/0x230 fs/file_table.c:328 ____fput+0x9/0x10 fs/file_table.c:348 task_work_run+0x7f/0xa0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x94/0xa0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f100df8cde9 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:00007ffc9a9c6f88 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f100e1a7ba0 RCX: 00007f100df8cde9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f100e1a7ba0 R08: 0000000000000000 R09: 000000099a9c727f R10: 000000000003fd8c R11: 0000000000000246 R12: 000000000000c202 R13: 00007ffc9a9c7080 R14: ffffffffffffffff R15: 00007ffc9a9c70a0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_inline_data_truncate+0x41a/0x420 fs/ext4/inline.c:2005 Code: 04 00 41 89 c5 85 c0 0f 85 9d fe ff ff e9 45 fe ff ff 41 bd f4 ff ff ff e9 32 fe ff ff 41 89 c5 e9 85 fe ff ff e8 16 a0 ae 00 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec RSP: 0018:ffffc90000797b98 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88810d2fc128 RCX: 0000000000000108 RDX: 0000000000000100 RSI: ffffc90000797bb8 RDI: ffff88810d2fc168 RBP: ffffc90000797c48 R08: ffffc90000797b68 R09: ffffffff814d31ac R10: 0000000000000080 R11: 00000000000007a7 R12: 0000000000000078 R13: 0000000000000000 R14: 0000000000000002 R15: ffff88810d2fc168 FS: 0000555564675500(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f100df70220 CR3: 000000011bb4c000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400