ci2 starts bisection 2024-12-07 14:55:06.204706324 +0000 UTC m=+73715.005372057
bisecting fixing commit since 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde
building syzkaller on f10afd6936523834f5b3297e9771b19a8f0edcb5
ensuring issue is reproducible on original commit 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde

testing commit 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2b0f6578c7c3a066eb0940bda86faf79f1e11e746932af4080945ac5ad9723af
all runs: crashed: kernel BUG in ext4_mark_iloc_dirty
representative crash: kernel BUG in ext4_mark_iloc_dirty, 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 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ac4332ed2592f2d5bf7406d401914936b387d6e7b989e8f507829421ba39ddbe
run #0: basic kernel testing failed: failed to copy prog to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syzkaller1720422045" "root@10.128.0.30:./syzkaller1720422045"]: exit status 255
Executing: program /usr/bin/ssh host 10.128.0.30, user root, command sftp
OpenSSH_9.2p1 Debian-2+deb12u3, OpenSSL 3.0.15 3 Sep 2024
debug1: Reading configuration data /dev/null
debug1: Connecting to 10.128.0.30 [10.128.0.30] port 22.
debug1: connect to address 10.128.0.30 port 22: Connection timed out
ssh: connect to host 10.128.0.30 port 22: Connection timed out
scp: Connection closed

run #1: basic kernel testing failed: failed to copy prog to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syzkaller1542381518" "root@10.128.10.6:./syzkaller1542381518"]: exit status 255
Executing: program /usr/bin/ssh host 10.128.10.6, user root, command sftp
OpenSSH_9.2p1 Debian-2+deb12u3, OpenSSL 3.0.15 3 Sep 2024
debug1: Reading configuration data /dev/null
debug1: Connecting to 10.128.10.6 [10.128.10.6] port 22.
debug1: connect to address 10.128.10.6 port 22: Connection timed out
ssh: connect to host 10.128.10.6 port 22: Connection timed out
scp: Connection closed

run #2: basic kernel testing failed: failed to copy prog to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syzkaller3335507285" "root@10.128.0.51:./syzkaller3335507285"]: exit status 255
Executing: program /usr/bin/ssh host 10.128.0.51, user root, command sftp
OpenSSH_9.2p1 Debian-2+deb12u3, OpenSSL 3.0.15 3 Sep 2024
debug1: Reading configuration data /dev/null
debug1: Connecting to 10.128.0.51 [10.128.0.51] port 22.
debug1: connect to address 10.128.0.51 port 22: Connection timed out
ssh: connect to host 10.128.0.51 port 22: Connection timed out
scp: Connection closed

run #3: crashed: kernel BUG in ext4_mark_iloc_dirty
run #4: crashed: kernel BUG in ext4_mark_iloc_dirty
run #5: crashed: kernel BUG in ext4_mark_iloc_dirty
run #6: crashed: kernel BUG in ext4_mark_iloc_dirty
run #7: crashed: kernel BUG in ext4_mark_iloc_dirty
run #8: crashed: kernel BUG in ext4_mark_iloc_dirty
run #9: crashed: kernel BUG in ext4_mark_iloc_dirty
representative crash: kernel BUG in ext4_mark_iloc_dirty, 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=6018 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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 930999bf22c18b8a9688892d77a442c97fe17d30b5a69a31dc9421e9abeabe34
all runs: crashed: kernel BUG in ext4_mark_iloc_dirty
representative crash: kernel BUG in ext4_mark_iloc_dirty, 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 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 92da63281e9259d2170335720f69af72f7f2727f114bc6a56cb098deb8d8b481
all runs: crashed: kernel BUG in ext4_mark_iloc_dirty
representative crash: kernel BUG in ext4_mark_iloc_dirty, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7fe4dbd9b63c86ec580f191f1cf47c7994b255f694cf156b04e8285ed4d3a9fe
all runs: crashed: kernel BUG in ext4_mark_iloc_dirty
representative crash: kernel BUG in ext4_mark_iloc_dirty, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: abbb9e253e9fd9fed64fb4a30febf0858f54d28b58e77f46b7a504c0163144a3
all runs: crashed: kernel BUG in ext4_mark_iloc_dirty
representative crash: kernel BUG in ext4_mark_iloc_dirty, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building 70b6ab09a34b4cbcada982b2f5c68a408a5c0cde: net/socket.c:1128: undefined reference to `wext_handle_ioctl'
net/socket.c:3397: 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 550d1177dc67b15498fe90e2ece6ebbf94411dc6
testing commit 550d1177dc67b15498fe90e2ece6ebbf94411dc6 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: aba2bec3d4ad73ed377830583f79ebff272efd9e2f1eb72e3a11cf01fd2a6a7d
all runs: crashed: kernel BUG in ext4_mark_iloc_dirty
representative crash: kernel BUG in ext4_mark_iloc_dirty, types: [BUG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h54m31.198231867s (build: 52m40.875251674s, test: 23m33.337439312s)
crash still not fixed or there were kernel test errors
commit msg: Revert "ext4: properly sync file size update after O_SYNC direct IO"
crash: kernel BUG in ext4_mark_iloc_dirty
EXT4-fs error (device loop3): ext4_validate_block_bitmap:420: comm syz-executor.3: bg 0: bad block bitmap checksum
EXT4-fs error (device loop3) in ext4_mb_clear_bb:5645: Filesystem failed CRC
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:5273!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 0 PID: 392 Comm: syz-executor.3 Not tainted 5.10.227-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ext4_do_update_inode fs/ext4/inode.c:5273 [inline]
RIP: 0010:ext4_mark_iloc_dirty+0xa6e/0xa70 fs/ext4/inode.c:5872
Code: 85 d2 74 0f 48 8b 7a 08 48 89 c6 4c 89 e2 e8 39 44 02 00 65 ff 0d 92 f9 bf 7e 0f 85 d7 fd ff ff e8 4e 71 be ff e9 cd fd ff ff <0f> 0b 48 8b 46 28 48 8b 80 c8 03 00 00 48 8b 80 90 02 00 00 a8 02
RSP: 0018:ffffc9000071f8c0 EFLAGS: 00010206
RAX: ffff888111f94800 RBX: ffffc9000071f960 RCX: ffff888112478400
RDX: ffff888109f78000 RSI: 0000000000000005 RDI: 00000000000000a0
RBP: ffffc9000071f940 R08: ffffffff82c4db90 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88810044ab34 R12: ffff888109f78198
R13: ffff888109f02a90 R14: 000000000000003c R15: ffff88811297fc00
FS:  00007fdd0c9356c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fab54733000 CR3: 0000000111e63000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __ext4_mark_inode_dirty+0x76/0x220 fs/ext4/inode.c:6074
 __ext4_ext_dirty+0x84/0xb0 fs/ext4/extents.c:182
 ext4_ext_rm_leaf fs/ext4/extents.c:2720 [inline]
 ext4_ext_remove_space+0x588/0x1500 fs/ext4/extents.c:2932
 ext4_ext_truncate+0x94/0xa0 fs/ext4/extents.c:4465
 ext4_truncate+0x3da/0x4b0 fs/ext4/inode.c:4366
 ext4_setattr+0x54b/0x990 fs/ext4/inode.c:5649
 notify_change+0x33a/0x4a0 fs/attr.c:410
 do_truncate+0x73/0xc0 fs/open.c:65
 handle_truncate fs/namei.c:3054 [inline]
 do_open fs/namei.c:3395 [inline]
 path_openat+0xc0f/0x10d0 fs/namei.c:3509
 do_filp_open+0x9d/0x140 fs/namei.c:3536
 do_sys_openat2+0x9c/0x210 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_creat fs/open.c:1307 [inline]
 __se_sys_creat fs/open.c:1301 [inline]
 __x64_sys_creat+0x46/0x60 fs/open.c:1301
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fdd0cdd4ea9
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:00007fdd0c9350c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fdd0cf03050 RCX: 00007fdd0cdd4ea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00007fdd0ce214a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fdd0cf03050 R15: 00007fffa79dabb8
Modules linked in:
---[ end trace 6eb44a56f194addb ]---
RIP: 0010:ext4_do_update_inode fs/ext4/inode.c:5273 [inline]
RIP: 0010:ext4_mark_iloc_dirty+0xa6e/0xa70 fs/ext4/inode.c:5872
Code: 85 d2 74 0f 48 8b 7a 08 48 89 c6 4c 89 e2 e8 39 44 02 00 65 ff 0d 92 f9 bf 7e 0f 85 d7 fd ff ff e8 4e 71 be ff e9 cd fd ff ff <0f> 0b 48 8b 46 28 48 8b 80 c8 03 00 00 48 8b 80 90 02 00 00 a8 02
RSP: 0018:ffffc9000071f8c0 EFLAGS: 00010206

RAX: ffff888111f94800 RBX: ffffc9000071f960 RCX: ffff888112478400
RDX: ffff888109f78000 RSI: 0000000000000005 RDI: 00000000000000a0
RBP: ffffc9000071f940 R08: ffffffff82c4db90 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88810044ab34 R12: ffff888109f78198
R13: ffff888109f02a90 R14: 000000000000003c R15: ffff88811297fc00
FS:  00007fdd0c9356c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fab54733000 CR3: 0000000111e63000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400