ci2 starts bisection 2024-10-07 05:19:04.686579659 +0000 UTC m=+311632.267430180
bisecting fixing commit since cd94fe67fd3323953016b8193f5be75982da96c8
building syzkaller on 6654cf89a7909afd314ad8abd502bc0dd024112a
ensuring issue is reproducible on original commit cd94fe67fd3323953016b8193f5be75982da96c8

testing commit cd94fe67fd3323953016b8193f5be75982da96c8 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 012ad4f2dd059148b117cbc145d14b7d95fd30c6eb19fa3a5424e0dc7567b22c
run #0: crashed: kernel BUG in ext4_writepages
run #1: crashed: KASAN: use-after-free Read in ext4_find_extent
run #2: crashed: KASAN: use-after-free Read in ext4_find_extent
run #3: crashed: KASAN: use-after-free Read in ext4_find_extent
run #4: crashed: KASAN: use-after-free Read in ext4_find_extent
run #5: crashed: KASAN: use-after-free Read in ext4_find_extent
run #6: crashed: kernel BUG in ext4_writepages
run #7: crashed: KASAN: use-after-free Read in ext4_find_extent
run #8: crashed: KASAN: use-after-free Read in ext4_find_extent
run #9: crashed: KASAN: use-after-free Read in ext4_find_extent
run #10: crashed: KASAN: use-after-free Read in ext4_find_extent
run #11: crashed: KASAN: use-after-free Read in ext4_find_extent
run #12: crashed: KASAN: use-after-free Read in ext4_find_extent
run #13: crashed: KASAN: use-after-free Read in ext4_find_extent
run #14: crashed: KASAN: use-after-free Read in ext4_find_extent
run #15: crashed: KASAN: use-after-free Read in ext4_find_extent
run #16: crashed: KASAN: use-after-free Read in ext4_find_extent
run #17: crashed: KASAN: use-after-free Read in ext4_find_extent
run #18: crashed: KASAN: use-after-free Read in ext4_find_extent
run #19: crashed: KASAN: use-after-free Read in ext4_find_extent
representative crash: KASAN: use-after-free Read in ext4_find_extent, types: [KASAN]
check whether we can drop unnecessary instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit cd94fe67fd3323953016b8193f5be75982da96c8 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1f6a46a168e464cce73702e3eb3ad8c9f5c92a1b39ca6294a418c94292e5c1da
run #0: crashed: KASAN: use-after-free Read in ext4_find_extent
run #1: crashed: KASAN: use-after-free Read in ext4_find_extent
run #2: crashed: KASAN: use-after-free Read in ext4_find_extent
run #3: crashed: invalid opcode in ext4_writepages
run #4: crashed: KASAN: use-after-free Read in ext4_find_extent
run #5: crashed: KASAN: use-after-free Read in ext4_find_extent
run #6: crashed: KASAN: use-after-free Read in ext4_find_extent
run #7: crashed: KASAN: use-after-free Read in ext4_find_extent
run #8: crashed: KASAN: use-after-free Read in ext4_find_extent
run #9: crashed: KASAN: use-after-free Read in ext4_find_extent
representative crash: KASAN: use-after-free Read in ext4_find_extent, types: [KASAN]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed
testing commit cd94fe67fd3323953016b8193f5be75982da96c8 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a4354e18538e999b357534189e41b9ce63521fb1e64380b407044ed90a0fc786
run #0: crashed: KASAN: use-after-free Read in ext4_find_extent
run #1: crashed: KASAN: use-after-free Read in ext4_find_extent
run #2: crashed: invalid opcode in ext4_writepages
run #3: crashed: invalid opcode in ext4_writepages
run #4: crashed: KASAN: use-after-free Read in ext4_find_extent
run #5: crashed: KASAN: use-after-free Read in ext4_find_extent
run #6: crashed: KASAN: use-after-free Read in ext4_find_extent
run #7: crashed: KASAN: use-after-free Read in ext4_find_extent
run #8: crashed: invalid opcode in ext4_writepages
run #9: crashed: KASAN: use-after-free Read in ext4_find_extent
representative crash: KASAN: use-after-free Read in ext4_find_extent, types: [KASAN UNKNOWN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit cd94fe67fd3323953016b8193f5be75982da96c8 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 11272976565fc6b34dd3276c9f0be9391657e53e4b80385ea62ec0fd0f6d3f0c
all runs: crashed: KASAN: use-after-free Read in ext4_find_extent
representative crash: KASAN: use-after-free Read in ext4_find_extent, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit cd94fe67fd3323953016b8193f5be75982da96c8 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d9b7aad566207f7bc44b95238aa7f737317df71e231e860cc56f6f301b02e4c4
run #0: crashed: KASAN: use-after-free Read in ext4_find_extent
run #1: crashed: KASAN: use-after-free Read in ext4_find_extent
run #2: crashed: KASAN: use-after-free Read in ext4_find_extent
run #3: crashed: invalid opcode in ext4_writepages
run #4: crashed: KASAN: use-after-free Read in ext4_find_extent
run #5: crashed: KASAN: use-after-free Read in ext4_find_extent
run #6: crashed: KASAN: use-after-free Read in ext4_find_extent
run #7: crashed: KASAN: use-after-free Read in ext4_find_extent
run #8: crashed: KASAN: use-after-free Read in ext4_find_extent
run #9: crashed: KASAN: use-after-free Read in ext4_find_extent
representative crash: KASAN: use-after-free Read in ext4_find_extent, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed
testing commit cd94fe67fd3323953016b8193f5be75982da96c8 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3e783d54ae44470fa70f93c5636bdf96afbd33f5fb76c2eadd619b58b6d48d61
run #0: crashed: invalid opcode in ext4_writepages
run #1: crashed: invalid opcode in ext4_writepages
run #2: crashed: KASAN: use-after-free Read in ext4_find_extent
run #3: crashed: KASAN: use-after-free Read in ext4_find_extent
run #4: crashed: KASAN: use-after-free Read in ext4_find_extent
run #5: crashed: KASAN: use-after-free Read in ext4_find_extent
run #6: crashed: KASAN: use-after-free Read in ext4_find_extent
run #7: crashed: KASAN: slab-out-of-bounds Read in ext4_find_extent
run #8: crashed: KASAN: use-after-free Read in ext4_find_extent
run #9: crashed: KASAN: slab-out-of-bounds Read in ext4_find_extent
representative crash: KASAN: use-after-free Read in ext4_find_extent, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit cd94fe67fd3323953016b8193f5be75982da96c8 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
failed building cd94fe67fd3323953016b8193f5be75982da96c8: 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 BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD d4dab27b9d1c37f6e52926b554ebfef294d93176
testing commit d4dab27b9d1c37f6e52926b554ebfef294d93176 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: cc88d315af4329ef5a64f0ab88147b23eca60eec532b7cbca8a7598d93a23ed7
run #0: crashed: KASAN: slab-out-of-bounds Read in ext4_find_extent
run #1: crashed: KASAN: use-after-free Read in ext4_find_extent
run #2: crashed: KASAN: use-after-free Read in ext4_find_extent
run #3: crashed: KASAN: use-after-free Read in ext4_find_extent
run #4: crashed: KASAN: use-after-free Read in ext4_find_extent
run #5: crashed: KASAN: use-after-free Read in ext4_find_extent
run #6: crashed: KASAN: use-after-free Read in ext4_find_extent
run #7: crashed: KASAN: use-after-free Read in ext4_find_extent
run #8: crashed: KASAN: use-after-free Read in ext4_find_extent
run #9: crashed: KASAN: use-after-free Read in ext4_find_extent
representative crash: KASAN: slab-out-of-bounds Read in ext4_find_extent, types: [KASAN]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h19m42.365258625s (build: 32m54.54610064s, test: 40m30.222627361s)
crash still not fixed or there were kernel test errors
commit msg: UPSTREAM: f2fs: fix to update i_ctime in __f2fs_setxattr()
crash: KASAN: slab-out-of-bounds Read in ext4_find_extent
==================================================================
BUG: KASAN: slab-out-of-bounds in ext4_ext_binsearch fs/ext4/extents.c:837 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_find_extent+0xb60/0xd10 fs/ext4/extents.c:953
Read of size 4 at addr ffff88810efb0fb4 by task kworker/u4:2/41

CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.1.99-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x105/0x148 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x158/0x4e0 mm/kasan/report.c:427
 kasan_report+0x13c/0x170 mm/kasan/report.c:531
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
 ext4_ext_binsearch fs/ext4/extents.c:837 [inline]
 ext4_find_extent+0xb60/0xd10 fs/ext4/extents.c:953
 ext4_ext_map_blocks+0x260/0x64e0 fs/ext4/extents.c:4142
 ext4_map_blocks+0x821/0x1890 fs/ext4/inode.c:651
 mpage_map_one_extent fs/ext4/inode.c:2423 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2476 [inline]
 ext4_writepages+0x13f4/0x3120 fs/ext4/inode.c:2844
 do_writepages+0x338/0x5b0 mm/page-writeback.c:2494
 __writeback_single_inode+0x73/0x7a0 fs/fs-writeback.c:1612
 writeback_sb_inodes+0x881/0x1500 fs/fs-writeback.c:1903
 wb_writeback+0x357/0x810 fs/fs-writeback.c:2077
 wb_do_writeback fs/fs-writeback.c:2220 [inline]
 wb_workfn+0x37d/0xdf0 fs/fs-writeback.c:2260
 process_one_work+0x6de/0xd00 kernel/workqueue.c:2299
 worker_thread+0x892/0xf20 kernel/workqueue.c:2446
 kthread+0x215/0x270 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

Allocated by task 366:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:333
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook+0x59/0x270 mm/slab.h:768
 slab_alloc_node mm/slub.c:3421 [inline]
 slab_alloc mm/slub.c:3429 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3436 [inline]
 kmem_cache_alloc+0x175/0x2c0 mm/slub.c:3445
 vma_lock_alloc kernel/fork.c:468 [inline]
 vm_area_dup+0x60/0x220 kernel/fork.c:521
 dup_mmap kernel/fork.c:725 [inline]
 dup_mm kernel/fork.c:1641 [inline]
 copy_mm+0xacc/0x1700 kernel/fork.c:1690
 copy_process+0xfbd/0x2d80 kernel/fork.c:2370
 kernel_clone+0x18a/0x670 kernel/fork.c:2786
 __do_sys_clone kernel/fork.c:2929 [inline]
 __se_sys_clone kernel/fork.c:2913 [inline]
 __x64_sys_clone+0x22c/0x270 kernel/fork.c:2913
 x64_sys_call+0x1b0/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
 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

Freed by task 457:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x131/0x180 mm/kasan/common.c:241
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook mm/slub.c:1771 [inline]
 slab_free mm/slub.c:3684 [inline]
 kmem_cache_free+0x264/0x450 mm/slub.c:3706
 vma_lock_free kernel/fork.c:480 [inline]
 __vm_area_free+0x65/0xe0 kernel/fork.c:534
 remove_vma mm/mmap.c:149 [inline]
 exit_mmap+0x484/0x8d0 mm/mmap.c:3358
 __mmput+0x6b/0x2a0 kernel/fork.c:1298
 mmput+0x2a/0xe0 kernel/fork.c:1321
 exit_mm kernel/exit.c:568 [inline]
 do_exit+0x943/0x2470 kernel/exit.c:864
 do_group_exit+0x1ba/0x290 kernel/exit.c:1027
 get_signal+0xf0b/0x1000 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff88810efb0f60
 which belongs to the cache vma_lock of size 64
The buggy address is located 20 bytes to the right of
 64-byte region [ffff88810efb0f60, ffff88810efb0fa0)

The buggy address belongs to the physical page:
page:ffffea00043bec00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10efb0
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 ffffea00043be540 dead000000000002 ffff88810027ac00
raw: 0000000000000000 00000000802a002a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 93, tgid 93 (S02sysctl), ts 3623422359, free_ts 0
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook mm/page_alloc.c:2590 [inline]
 prep_new_page+0x512/0x5e0 mm/page_alloc.c:2597
 get_page_from_freelist+0x288b/0x2910 mm/page_alloc.c:4425
 __alloc_pages+0x39f/0x780 mm/page_alloc.c:5714
 alloc_slab_page+0x6c/0xf0
 allocate_slab mm/slub.c:1962 [inline]
 new_slab+0x7b/0x370 mm/slub.c:2015
 ___slab_alloc+0x611/0x9a0 mm/slub.c:3203
 __slab_alloc+0x52/0x90 mm/slub.c:3302
 slab_alloc_node mm/slub.c:3387 [inline]
 slab_alloc mm/slub.c:3429 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3436 [inline]
 kmem_cache_alloc+0x1b9/0x2c0 mm/slub.c:3445
 vma_lock_alloc kernel/fork.c:468 [inline]
 vm_area_alloc+0xe4/0x190 kernel/fork.c:499
 __bprm_mm_init fs/exec.c:260 [inline]
 bprm_mm_init fs/exec.c:384 [inline]
 alloc_bprm+0x299/0x680 fs/exec.c:1540
 do_execveat_common+0x16a/0x7d0 fs/exec.c:1905
 do_execve fs/exec.c:2028 [inline]
 __do_sys_execve fs/exec.c:2104 [inline]
 __se_sys_execve fs/exec.c:2099 [inline]
 __x64_sys_execve+0x8d/0xa0 fs/exec.c:2099
 x64_sys_call+0x1c5/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:60
 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
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88810efb0e80: fc fc fc fc fa fb fb fb fb fb fb fb fc fc fc fc
 ffff88810efb0f00: fb fb fb fb fb fb fb fb fc fc fc fc fa fb fb fb
>ffff88810efb0f80: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
                                     ^
 ffff88810efb1000: fa fc fc fc fc fa fc fc fc fc fa fc fc fc fc fa
 ffff88810efb1080: fc fc fc fc fa fc fc fc fc fa fc fc fc fc fa fc
==================================================================
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 41 Comm: kworker/u4:2 Tainted: G    B              6.1.99-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2435 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2476 [inline]
RIP: 0010:ext4_writepages+0x310e/0x3120 fs/ext4/inode.c:2844
Code: e9 45 89 f0 e8 f3 dd 06 00 65 ff 0d 64 f2 2f 7e 49 bf 00 00 00 00 00 fc ff df 0f 85 7e fb ff ff e8 2f f2 2d ff e9 74 fb ff ff <0f> 0b 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5
RSP: 0018:ffffc900002af060 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000042b RCX: 1ffff92000055e6a
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001
RBP: ffffc900002af450 R08: dffffc0000000000 R09: ffffed10200b4f29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811e93b910
R13: ffffc900002af320 R14: ffff8881005a7980 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555561b3818 CR3: 0000000122cd9000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0x338/0x5b0 mm/page-writeback.c:2494
 __writeback_single_inode+0x73/0x7a0 fs/fs-writeback.c:1612
 writeback_sb_inodes+0x881/0x1500 fs/fs-writeback.c:1903
 wb_writeback+0x357/0x810 fs/fs-writeback.c:2077
 wb_do_writeback fs/fs-writeback.c:2220 [inline]
 wb_workfn+0x37d/0xdf0 fs/fs-writeback.c:2260
 process_one_work+0x6de/0xd00 kernel/workqueue.c:2299
 worker_thread+0x892/0xf20 kernel/workqueue.c:2446
 kthread+0x215/0x270 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2435 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2476 [inline]
RIP: 0010:ext4_writepages+0x310e/0x3120 fs/ext4/inode.c:2844
Code: e9 45 89 f0 e8 f3 dd 06 00 65 ff 0d 64 f2 2f 7e 49 bf 00 00 00 00 00 fc ff df 0f 85 7e fb ff ff e8 2f f2 2d ff e9 74 fb ff ff <0f> 0b 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5
RSP: 0018:ffffc900002af060 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000042b RCX: 1ffff92000055e6a
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001
RBP: ffffc900002af450 R08: dffffc0000000000 R09: ffffed10200b4f29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811e93b910
R13: ffffc900002af320 R14: ffff8881005a7980 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555561b3818 CR3: 0000000122cd9000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400