ci2 starts bisection 2025-04-29 03:02:29.924948863 +0000 UTC m=+29902.707270458 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 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 1d685d3cf68f0f0dc80c60342868fdebadea935c97cce10d22e235f5cb0dff69 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 [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: dc7c6bbae18c2dbc03e9546418d94a75377c8ef42e030b00d6dd633474513df0 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=5185 full=6548 leaves diff=266 split chunks (needed=false): <266> split chunk #0 of len 266 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 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 31264f7e973eba805b4dc80c394406c95a9c5adceae91be11401a4c52bc6964f 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 [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: c65ac942acb548d6f1c41ec5da9934567204b1a8d2ff29e27c5d395ac3add602 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 [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 68f34621db7a99b76027a21c8bb3a1ae77a55421edb4d70bd0128a974d830f87 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 4/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 4cf517dbc9d5bdcc2b69433b7262f0fa87faeb8c6b428f1060a229fd46d7eece 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit 1ac09f5c057146455dc10fccd52a8f5f34039fb0 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 failed building 1ac09f5c057146455dc10fccd52a8f5f34039fb0: ld.lld: error: undefined symbol: wext_proc_init ld.lld: error: undefined symbol: wext_proc_exit ld.lld: error: undefined symbol: wext_handle_ioctl ld.lld: error: undefined symbol: compat_wext_handle_ioctl minimized to 50 configs; suspects: [HID_ZEROPLUS 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 242f90b45e895bb0721721f486e2497054eeb0c1 testing commit 242f90b45e895bb0721721f486e2497054eeb0c1 gcc compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 kernel signature: 64349febdef94c0409deddcf96809fec479798da55373079334800cbd0b5d952 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: 1h13m0.11686184s (build: 33m7.490187471s, test: 36m27.743028308s) crash still not fixed or there were kernel test errors commit msg: UPSTREAM: drm/msm: Rename drm_msm_gem_submit_reloc::or in C++ code 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: 471 Comm: syz.2.16 Not tainted 6.1.134-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 RIP: 0010:ext4_inline_data_truncate+0x403/0x410 fs/ext4/inline.c:2005 Code: 89 f7 48 89 de e8 5d e1 04 00 85 c0 0f 84 51 fe ff ff 41 89 c5 e9 8d fe ff ff 41 bd f4 ff ff ff e9 36 fe ff ff e8 cd 75 b9 00 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90000997ba0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88810d0e86a8 RCX: 0000000000000108 RDX: ffffc90000997bd8 RSI: ffffc90000997bb8 RDI: ffff88810d0e86a8 RBP: ffffc90000997c48 R08: 0000000000000100 R09: 0000000000000080 R10: 0000000000000001 R11: 0000000000000080 R12: 0000000000000078 R13: ffff88810d0e8598 R14: 0000000000000002 R15: 0000000000000010 FS: 00005555669b6500(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559850516178 CR3: 0000000115c1d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_truncate+0x13b/0x470 fs/ext4/inode.c:4246 ext4_evict_inode+0x558/0x750 fs/ext4/inode.c:286 evict+0x1a0/0x300 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x1be/0x280 fs/inode.c:1860 dentry_unlink_inode+0x108/0x110 fs/dcache.c:405 __dentry_kill+0x12e/0x200 fs/dcache.c:611 dentry_kill+0x64/0x110 fs/dcache.c:-1 dput+0x3d/0x60 fs/dcache.c:918 __fput+0x120/0x250 fs/file_table.c:328 ____fput+0x9/0x10 fs/file_table.c:348 task_work_run+0x90/0xb0 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x9b/0xb0 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+0x1a/0x30 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f06c878cde9 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:00007fff297d0868 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f06c89a7ba0 RCX: 00007f06c878cde9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f06c89a7ba0 R08: 0000000000000000 R09: 00000009297d0b5f R10: 000000000003fd8c R11: 0000000000000246 R12: 000000000000e42a R13: 00007fff297d0960 R14: ffffffffffffffff R15: 00007fff297d0980 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_inline_data_truncate+0x403/0x410 fs/ext4/inline.c:2005 Code: 89 f7 48 89 de e8 5d e1 04 00 85 c0 0f 84 51 fe ff ff 41 89 c5 e9 8d fe ff ff 41 bd f4 ff ff ff e9 36 fe ff ff e8 cd 75 b9 00 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90000997ba0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88810d0e86a8 RCX: 0000000000000108 RDX: ffffc90000997bd8 RSI: ffffc90000997bb8 RDI: ffff88810d0e86a8 RBP: ffffc90000997c48 R08: 0000000000000100 R09: 0000000000000080 R10: 0000000000000001 R11: 0000000000000080 R12: 0000000000000078 R13: ffff88810d0e8598 R14: 0000000000000002 R15: 0000000000000010 FS: 00005555669b6500(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6200fe6ed8 CR3: 0000000115c1d000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400