ci2 starts bisection 2024-08-26 23:09:23.090876706 +0000 UTC m=+32373.090363297
bisecting fixing commit since a59b32866cd44cf6c544b491c23720728552bc59
building syzkaller on cb976f63e0177b96eb9ce1c631cc5e2c4b4b0759
ensuring issue is reproducible on original commit a59b32866cd44cf6c544b491c23720728552bc59

testing commit a59b32866cd44cf6c544b491c23720728552bc59 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d35d5cb7125b10f27d9196e0a420481d5f0aa7b63f18fe7c8edd61f6f26f6596
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
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 ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: kernel BUG in __block_commit_write
run #9: crashed: kernel BUG in __block_commit_write
run #10: crashed: kernel BUG in ext4_write_inline_data_end
run #11: crashed: kernel BUG in ext4_write_inline_data_end
run #12: crashed: kernel BUG in __block_commit_write
run #13: crashed: kernel BUG in __block_commit_write
run #14: crashed: kernel BUG in ext4_write_inline_data_end
run #15: crashed: kernel BUG in ext4_write_inline_data_end
run #16: crashed: kernel BUG in ext4_write_inline_data_end
run #17: crashed: kernel BUG in ext4_write_inline_data_end
run #18: crashed: kernel BUG in ext4_write_inline_data_end
run #19: crashed: kernel BUG in __block_commit_write
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit a59b32866cd44cf6c544b491c23720728552bc59 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0c0a7b5072f3c9f292d12a6074a66f9debb7a1155387f3bcdf3a71eaf065ff6b
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
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 ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
kconfig minimization: base=5179 full=6485 leaves diff=250
split chunks (needed=false): <250>
split chunk #0 of len 250 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 a59b32866cd44cf6c544b491c23720728552bc59 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5abc89178fc595dd7cbfef6fb0fc3439896caa4d66b64553e8d0e59e075f0760
all runs: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit a59b32866cd44cf6c544b491c23720728552bc59 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 262d63bd90d07baca67323a5a537e71738523d8f02cadb9d638c8db6a794a7a5
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in ext4_write_inline_data_end
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 ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit a59b32866cd44cf6c544b491c23720728552bc59 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3d759b017e8795a625ccc725db8f9ce9c1fcf8dc38fa7ea5e1e5d0ee14be6316
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in ext4_write_inline_data_end
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 ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, 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 a59b32866cd44cf6c544b491c23720728552bc59 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: f09b358e5049d6cdc4f153ccccbd173332eb7d31e694f548ad3db9af3e88d085
all runs: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, 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 a59b32866cd44cf6c544b491c23720728552bc59 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
failed building a59b32866cd44cf6c544b491c23720728552bc59: net/socket.c:1225: undefined reference to `wext_handle_ioctl'
net/socket.c:3420: 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 50 configs; suspects: [HID_ZEROPLUS 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_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_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF]
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing current HEAD 42515e9246a690e226e6dde38cf5a0b98100e031
testing commit 42515e9246a690e226e6dde38cf5a0b98100e031 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ce4204da819f991d3a1a04b3b378d925bc44dbf3048b0c430f2442eb107e49ff
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 ext4_write_inline_data_end
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 ext4_write_inline_data_end
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 ext4_write_inline_data_end
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: 1h8m5.646811473s (build: 25m6.191878317s, test: 40m28.150038651s)
crash still not fixed or there were kernel test errors
commit msg: ANDROID: sched: Add android_vh_set_task_comm
crash: kernel BUG in __block_commit_write
loop0: detected capacity change from 0 to 512
EXT4-fs error (device loop0): __ext4_fill_super:5386: inode #2: comm syz-executor.0: casefold flag without casefold feature
EXT4-fs (loop0): warning: mounting fs with errors, running e2fsck is recommended
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2097!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 451 Comm: syz-executor.0 Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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:ffffc9000091fb68 EFLAGS: 00010246
RAX: 0000004c00000000 RBX: 0000000000000007 RCX: 0000000000000007
RDX: 000000000000000e RSI: 0000000000000007 RDI: ffffea00044253c0
RBP: ffffc9000091fba8 R08: 0000000000000007 R09: ffffea00044253c0
R10: ffffea00044253c0 R11: 00000000000002ac R12: ffff88810d0bc280
R13: ffff88810b7d0838 R14: ffffea00044253c0 R15: 0000000000000007
FS:  00007f0e6fe476c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 0000000114a94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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:3855
 ext4_buffered_write_iter+0xf7/0x190 fs/ext4/file.c:285
 ext4_file_write_iter+0x2d5/0x6a0
 call_write_iter include/linux/fs.h:2274 [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
 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0e6f07cae9
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:00007f0e6fe470c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0e6f19bf80 RCX: 00007f0e6f07cae9
RDX: 0000000000000007 RSI: 0000000020000180 RDI: 0000000000000004
RBP: 00007f0e6f0c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0e6f19bf80 R15: 00007ffe2948dc28
 </TASK>
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:ffffc9000091fb68 EFLAGS: 00010246
RAX: 0000004c00000000 RBX: 0000000000000007 RCX: 0000000000000007
RDX: 000000000000000e RSI: 0000000000000007 RDI: ffffea00044253c0
RBP: ffffc9000091fba8 R08: 0000000000000007 R09: ffffea00044253c0
R10: ffffea00044253c0 R11: 00000000000002ac R12: ffff88810d0bc280
R13: ffff88810b7d0838 R14: ffffea00044253c0 R15: 0000000000000007
FS:  00007f0e6fe476c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 0000000114a94000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400