ci2 starts bisection 2024-05-15 06:40:49.313668391 +0000 UTC m=+111097.034816407 bisecting fixing commit since cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 building syzkaller on 21772ce4342bc8ecbb3e7c8747bba9aec14f3bbb ensuring issue is reproducible on original commit cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 testing commit cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 55b7a627dfc7cfcaf44ba2017a07263a83afee3afc2eb7ca3d9e5f4627740261 run #0: crashed: kernel BUG in __block_commit_write run #1: crashed: kernel BUG in __block_commit_write run #2: crashed: kernel BUG in __block_commit_write run #3: crashed: kernel BUG in __block_commit_write run #4: crashed: kernel BUG in __block_commit_write run #5: crashed: kernel BUG in __block_commit_write run #6: crashed: kernel BUG in __block_commit_write run #7: crashed: kernel BUG in __block_commit_write run #8: crashed: kernel BUG in ext4_write_inline_data_end run #9: crashed: kernel BUG in __block_commit_write run #10: crashed: kernel BUG in __block_commit_write run #11: crashed: kernel BUG in __block_commit_write run #12: crashed: kernel BUG in __block_commit_write run #13: crashed: kernel BUG in __block_commit_write run #14: crashed: kernel BUG in __block_commit_write run #15: crashed: kernel BUG in __block_commit_write run #16: crashed: kernel BUG in __block_commit_write run #17: crashed: kernel BUG in __block_commit_write run #18: crashed: kernel BUG in __block_commit_write run #19: crashed: kernel BUG in __block_commit_write representative crash: kernel BUG in __block_commit_write, 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 cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25efaa5463120c11ff55d81324a640d3746f8eebdad149e7476916f80c96fad6 all runs: crashed: kernel BUG in __block_commit_write representative crash: kernel BUG in __block_commit_write, types: [BUG] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed kconfig minimization: base=5179 full=6491 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 cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1a502bd7c089e9c0afd2bba8f9e4e7c4c7e252831468cbcee5dcf0e2e9608f1a all runs: crashed: kernel BUG in __block_commit_write representative crash: kernel BUG in __block_commit_write, 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 cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8ace22ee6e3ba9e277293c6b825978426aa922a0538215d63e6da345e5e9b59a all runs: crashed: kernel BUG in __block_commit_write representative crash: kernel BUG in __block_commit_write, 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 cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7bab107866276ae0641fc5baf6b610e2381ebbab54dfd843ee036a5c2215231f all runs: crashed: kernel BUG in __block_commit_write representative crash: kernel BUG in __block_commit_write, 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 cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd2eebbd3248199259b5221a498297c8201c9301126d8ff7bc2af05557ae7d3e all runs: crashed: kernel BUG in __block_commit_write representative crash: kernel BUG in __block_commit_write, 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 cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building cfe8cce4e8a1938ea6aff81c4c8e9cbee7be62f9: net/socket.c:1242: undefined reference to `wext_handle_ioctl' net/socket.c:3437: 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 51 configs; suspects: [HID_ZEROPLUS 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 274e3e96961da98fd615b0bac6b08c8cd06ad615 testing commit 274e3e96961da98fd615b0bac6b08c8cd06ad615 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4cdf59460fb1823ba34d3332b7cda05c93045d8ba144ffe53e8d670265a57e02 all runs: crashed: kernel BUG in __block_commit_write representative crash: kernel BUG in __block_commit_write, types: [BUG] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h0m53.498788141s (build: 24m33.692215607s, test: 33m33.458685394s) crash still not fixed or there were kernel test errors commit msg: ANDROID: export one function for mm metrics crash: kernel BUG in __block_commit_write loop1: detected capacity change from 0 to 2048 ------------[ cut here ]------------ kernel BUG at fs/buffer.c:2097! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 0 PID: 3038 Comm: syz-executor.1 Not tainted 6.1.75-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__block_commit_write+0xb2/0xc0 fs/buffer.c:2097 Code: f7 03 20 00 00 00 74 ae f0 80 23 df eb a8 45 85 ed 75 08 48 8b 45 c8 f0 80 08 04 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc90000447b78 EFLAGS: 00010246 RAX: 0000004c00080000 RBX: 0000000000000000 RCX: 000000000000000c RDX: 000000000000000c RSI: 0000000000000000 RDI: ffffea000468d480 RBP: ffffc90000447bb8 R08: 000000000000000c R09: ffffea000468d480 R10: 0000000000000000 R11: 636578652d7a7973 R12: ffff88810b897c80 R13: ffff88810c392cf8 R14: ffffea000468d480 R15: 000000000000000c FS: 00007faf85e3b6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005280 CR3: 000000010f9f6000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: block_write_end+0x2d/0x70 fs/buffer.c:2187 ext4_write_end+0x91/0x350 fs/ext4/inode.c:1325 ext4_da_write_end+0x38/0x270 fs/ext4/inode.c:3073 generic_perform_write+0xd2/0x1f0 mm/filemap.c:3849 ext4_buffered_write_iter+0xf7/0x190 fs/ext4/file.c:285 ext4_file_write_iter+0x2d5/0x6a0 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: 0033:0x7faf8507cda9 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:00007faf85e3b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007faf851abf80 RCX: 00007faf8507cda9 RDX: 000000000000000c RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007faf850c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007faf851abf80 R15: 00007ffccac1e738 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__block_commit_write+0xb2/0xc0 fs/buffer.c:2097 Code: f7 03 20 00 00 00 74 ae f0 80 23 df eb a8 45 85 ed 75 08 48 8b 45 c8 f0 80 08 04 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc90000447b78 EFLAGS: 00010246 RAX: 0000004c00080000 RBX: 0000000000000000 RCX: 000000000000000c RDX: 000000000000000c RSI: 0000000000000000 RDI: ffffea000468d480 RBP: ffffc90000447bb8 R08: 000000000000000c R09: ffffea000468d480 R10: 0000000000000000 R11: 636578652d7a7973 R12: ffff88810b897c80 R13: ffff88810c392cf8 R14: ffffea000468d480 R15: 000000000000000c FS: 00007faf85e3b6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc461893d58 CR3: 000000010f9f6000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400