ci2 starts bisection 2024-03-20 13:43:24.197546179 +0000 UTC m=+41309.188110269
bisecting fixing commit since ec631d62a08327d32ed2ab3a15804ee2432be978
building syzkaller on 2a7bcc7f9f751f2ec13586584e8e25b8f6817e8c
ensuring issue is reproducible on original commit ec631d62a08327d32ed2ab3a15804ee2432be978

testing commit ec631d62a08327d32ed2ab3a15804ee2432be978 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: fb5db98adec87f13eca90c52dd6a2fa054ea82993cb8e99858fa56375bdf5b0c
run #0: crashed: kernel BUG in __block_commit_write
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in __block_commit_write
run #3: crashed: kernel BUG in __block_commit_write
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: kernel BUG in __block_commit_write
run #7: crashed: kernel BUG in __block_commit_write
run #8: crashed: kernel BUG in __block_commit_write
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 ext4_write_inline_data_end
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 ec631d62a08327d32ed2ab3a15804ee2432be978 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0ecce4a24f043ab5756b4530a6a802bedfba60a26f26ec4146920feb3e51b430
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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
kconfig minimization: base=4789 full=6022 leaves diff=238
split chunks (needed=false): <238>
split chunk #0 of len 238 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 ec631d62a08327d32ed2ab3a15804ee2432be978 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7d1a976559ce228cc5de83c73d5f348f6e3030d733b2f25d325c9019849c18e2
run #0: crashed: kernel BUG in __block_commit_write
run #1: crashed: kernel BUG in __block_commit_write
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in __block_commit_write
run #4: crashed: kernel BUG in __block_commit_write
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: kernel BUG in __block_commit_write
run #7: crashed: kernel BUG in __block_commit_write
run #8: crashed: kernel BUG in __block_commit_write
run #9: 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 [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit ec631d62a08327d32ed2ab3a15804ee2432be978 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 358328b91910580b481e5f77333ca62cddc022a3f6410e349cf741a4711cc97d
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 ext4_write_inline_data_end
run #6: crashed: kernel BUG in __block_commit_write
run #7: crashed: kernel BUG in __block_commit_write
run #8: crashed: kernel BUG in __block_commit_write
run #9: 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 [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit ec631d62a08327d32ed2ab3a15804ee2432be978 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f8e511b46510478ba178d012b55d52bdd137d0d52a539c5dd44fa2f6e6239e44
run #0: crashed: kernel BUG in __block_commit_write
run #1: crashed: kernel BUG in __block_commit_write
run #2: crashed: kernel BUG in ext4_write_inline_data_end
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 ext4_write_inline_data_end
run #7: crashed: kernel BUG in __block_commit_write
run #8: OK
run #9: OK
representative crash: kernel BUG in __block_commit_write, 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 ec631d62a08327d32ed2ab3a15804ee2432be978 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6c336857bc21e222edbbd0b94eb551c687b09d6d60244b8663de5276366efa66
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 ext4_write_inline_data_end
run #5: crashed: kernel BUG in __block_commit_write
run #6: crashed: kernel BUG in __block_commit_write
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: OK
run #9: OK
representative crash: kernel BUG in __block_commit_write, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit ec631d62a08327d32ed2ab3a15804ee2432be978 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building ec631d62a08327d32ed2ab3a15804ee2432be978: net/socket.c:1126: undefined reference to `wext_handle_ioctl'
net/socket.c:3395: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:346: undefined reference to `wext_proc_exit'
net/core/net-procfs.c:330: undefined reference to `wext_proc_init'
minimized to 46 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 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 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 dd976ecce2ce969d698599c84c8e7dcbb07c9aaf
testing commit dd976ecce2ce969d698599c84c8e7dcbb07c9aaf gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 01323df02c8d91de3e43331112d9cfdab1cea0b3d614b4cdc4078898697ff1cf
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 ext4_write_inline_data_end
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: OK
run #8: OK
run #9: OK
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: 1h5m13.98520154s (build: 14m21.133277497s, test: 49m1.772824989s)
crash still not fixed or there were kernel test errors
commit msg: Merge "Merge branch 'android13-5.10' into branch 'android13-5.10-lts'" into android13-5.10-lts
crash: kernel BUG in __block_commit_write
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2104!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 1957 Comm: syz-executor.4 Not tainted 5.10.209-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:__block_commit_write.constprop.0.isra.0+0xad/0xb0 fs/buffer.c:2104
Code: 85 ff 74 0f 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 8b 45 c8 f0 80 08 04 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 90 55 48 89 e5 e8 47 ff ff ff 31 c0 5d c3 0f 1f 00 55 48 89
RSP: 0018:ffffc900030dfb80 EFLAGS: 00010246
RAX: 4000000000000017 RBX: 0000000000000000 RCX: 000000000000000c
RDX: 000000000000000c RSI: 0000000000000000 RDI: ffffea000455aa80
RBP: ffffc900030dfbb8 R08: 000000000000000c R09: ffffea000455aa80
R10: ffff88810119cdc0 R11: 0000160000000000 R12: 000000000000000c
R13: 0000000000000000 R14: 000000000000000c R15: ffff888111146fe8
FS:  00007fc75bdbe6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ba21cbd58 CR3: 0000000114514000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 block_write_end+0x33/0x80 fs/buffer.c:2193
 ext4_write_end+0xb3/0x520 fs/ext4/inode.c:1320
 ext4_da_write_end+0x19c/0x2f0 fs/ext4/inode.c:3150
 generic_perform_write+0xfb/0x1b0 mm/filemap.c:3520
 ext4_buffered_write_iter+0x9f/0x150 fs/ext4/file.c:271
 ext4_file_write_iter+0x5b/0x840 fs/ext4/file.c:685
 call_write_iter include/linux/fs.h:2019 [inline]
 new_sync_write+0x105/0x190 fs/read_write.c:518
 vfs_write+0x1f8/0x290 fs/read_write.c:605
 ksys_write+0x62/0xe0 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x15/0x20 fs/read_write.c:667
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7fc75c23bda9
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:00007fc75bdbe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc75c36af80 RCX: 00007fc75c23bda9
RDX: 000000000000000c RSI: 0000000020000300 RDI: 0000000000000004
RBP: 00007fc75c28847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc75c36af80 R15: 00007ffe3e128a28
Modules linked in:
---[ end trace bffc879ab7135124 ]---
RIP: 0010:__block_commit_write.constprop.0.isra.0+0xad/0xb0 fs/buffer.c:2104
Code: 85 ff 74 0f 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 8b 45 c8 f0 80 08 04 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 90 55 48 89 e5 e8 47 ff ff ff 31 c0 5d c3 0f 1f 00 55 48 89
RSP: 0018:ffffc900030dfb80 EFLAGS: 00010246
RAX: 4000000000000017 RBX: 0000000000000000 RCX: 000000000000000c
RDX: 000000000000000c RSI: 0000000000000000 RDI: ffffea000455aa80
RBP: ffffc900030dfbb8 R08: 000000000000000c R09: ffffea000455aa80
R10: ffff88810119cdc0 R11: 0000160000000000 R12: 000000000000000c
R13: 0000000000000000 R14: 000000000000000c R15: ffff888111146fe8
FS:  00007fc75bdbe6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ba279a988 CR3: 0000000114514000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400