ci2 starts bisection 2023-10-25 04:32:07.577877564 +0000 UTC m=+39530.753765393
bisecting fixing commit since b0c06048a8ff95e4599e761714866deb6f3f9e0f
building syzkaller on da3c3ef8d98b7ba08828daa5b40f59b2dbc0ceaf
ensuring issue is reproducible on original commit b0c06048a8ff95e4599e761714866deb6f3f9e0f

testing commit b0c06048a8ff95e4599e761714866deb6f3f9e0f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d8d557ed932170c41eeabde0854ce2d4369775ffb7868314a815b8b40167f9d6
all runs: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, 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 b0c06048a8ff95e4599e761714866deb6f3f9e0f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 503fe005f7162130399178ccc8d6d8d66c3a47f1c1c9447a9af612f44f75fd86
run #0: crashed: kernel BUG in ext4_writepages
run #1: crashed: kernel BUG in ext4_writepages
run #2: crashed: kernel BUG in ext4_writepages
run #3: crashed: kernel BUG in ext4_write_inline_data
run #4: crashed: kernel BUG in ext4_writepages
run #5: crashed: kernel BUG in ext4_writepages
run #6: crashed: kernel BUG in ext4_writepages
run #7: crashed: kernel BUG in ext4_writepages
run #8: crashed: kernel BUG in __ext4_journal_stop
run #9: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
kconfig minimization: base=5179 full=6487 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 [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit b0c06048a8ff95e4599e761714866deb6f3f9e0f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7ba19858fecbb7ac36ea51e3031533477a89cf652639954b26961bfa76fab078
run #0: crashed: kernel BUG in ext4_writepages
run #1: crashed: kernel BUG in ext4_writepages
run #2: crashed: kernel BUG in ext4_writepages
run #3: crashed: kernel BUG in __ext4_journal_stop
run #4: crashed: kernel BUG in ext4_writepages
run #5: crashed: kernel BUG in ext4_writepages
run #6: crashed: kernel BUG in ext4_write_inline_data
run #7: crashed: kernel BUG in ext4_writepages
run #8: crashed: kernel BUG in __ext4_journal_stop
run #9: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, 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 b0c06048a8ff95e4599e761714866deb6f3f9e0f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c40c31cb2cb5f2921f6da6e89c76043d32c7cca4b81c2cab701f54b94a3bcb55
all runs: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, types: [BUG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit b0c06048a8ff95e4599e761714866deb6f3f9e0f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: dff515d07f0d0ccf6291ee1168523ded7079720406b8568ef73208a6d4a9a159
all runs: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, 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 b0c06048a8ff95e4599e761714866deb6f3f9e0f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7d740dc8c4fdfae041ef18837cb690348e8ea3ea1879de634d3467efb6525739
all runs: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, 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 b0c06048a8ff95e4599e761714866deb6f3f9e0f gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
failed building b0c06048a8ff95e4599e761714866deb6f3f9e0f: 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 [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD 09641ca77fa025206c17935c8b210a0c80bf027d
testing commit 09641ca77fa025206c17935c8b210a0c80bf027d gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 836535d6bafdcb1dbe0ddc1a76b4dd9238e949db4d9e65116131990155d0c5f8
all runs: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, types: [BUG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 46m36.225111593s (build: 23m8.015416252s, test: 20m45.39530233s)
crash still not fixed or there were kernel test errors
commit msg: ANDROID: GKI: Update oplus symbol list update oplus symbol list for Addding hooks for adjusting alloc_flags
crash: kernel BUG in ext4_writepages
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2747!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 10 Comm: kworker/u4:1 Not tainted 6.1.25-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Workqueue: writeback wb_workfn (flush-7:5)
RIP: 0010:ext4_writepages+0x110a/0x1110 fs/ext4/inode.c:2746
Code: fe ff ff 89 d9 e8 76 39 02 00 65 ff 0d f7 f9 b4 7e 4c 8b b5 a8 fe ff ff 0f 85 6e fe ff ff e8 55 7a b3 ff e9 64 fe ff ff 0f 0b <0f> 0b 0f 1f 40 00 55 48 89 e5 48 83 7e 28 00 74 0c f0 80 4e 01 04
RSP: 0018:ffffc90000057920 EFLAGS: 00010207
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000ab5 RDI: 0000000000000000
RBP: ffffc90000057af8 R08: 0000000000000000 R09: ffffffff814ca536
R10: 0000000000000080 R11: 0000000000000ab5 R12: ffffc90000057c48
R13: ffffc90000057b08 R14: ffff88811659d000 R15: ffff888109daab68
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe900d5ff8 CR3: 0000000002e0b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0xcc/0x210 mm/page-writeback.c:2472
 __writeback_single_inode+0x43/0x350 fs/fs-writeback.c:1590
 writeback_sb_inodes+0x3e2/0x6f0 fs/fs-writeback.c:1881
 wb_writeback+0x17c/0x390 fs/fs-writeback.c:2055
 wb_do_writeback fs/fs-writeback.c:2198 [inline]
 wb_workfn+0x106/0x4b0 fs/fs-writeback.c:2238
 process_one_work+0x1c5/0x380 kernel/workqueue.c:2296
 worker_thread+0x249/0x400 kernel/workqueue.c:2443
 kthread+0xe6/0x100 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_writepages+0x110a/0x1110 fs/ext4/inode.c:2746
Code: fe ff ff 89 d9 e8 76 39 02 00 65 ff 0d f7 f9 b4 7e 4c 8b b5 a8 fe ff ff 0f 85 6e fe ff ff e8 55 7a b3 ff e9 64 fe ff ff 0f 0b <0f> 0b 0f 1f 40 00 55 48 89 e5 48 83 7e 28 00 74 0c f0 80 4e 01 04
RSP: 0018:ffffc90000057920 EFLAGS: 00010207
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000ab5 RDI: 0000000000000000
RBP: ffffc90000057af8 R08: 0000000000000000 R09: ffffffff814ca536
R10: 0000000000000080 R11: 0000000000000ab5 R12: ffffc90000057c48
R13: ffffc90000057b08 R14: ffff88811659d000 R15: ffff888109daab68
FS:  0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f07b959d988 CR3: 0000000002e0b000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400