[Bug 215804] New: [xfstests generic/670] Unable to handle kernel paging request at virtual address fffffbffff000008

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https://bugzilla.kernel.org/show_bug.cgi?id=215804

            Bug ID: 215804
           Summary: [xfstests generic/670] Unable to handle kernel paging
                    request at virtual address fffffbffff000008
           Product: File System
           Version: 2.5
    Kernel Version: xfs-5.18-merge-4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: XFS
          Assignee: filesystem_xfs@xxxxxxxxxxxxxxxxxxxxxx
          Reporter: zlang@xxxxxxxxxx
        Regression: No

xfstests generic/670 hit a panic[1] on 64k directory block size XFS (mkfs.xfs
-n size=65536 -m rmapbt=1 -b size=1024):

The kernel version is linux 5.17+ (nearly 5.18-rc1, contains latest
xfs-5.18-merge-4)
The linux kernel HEAD is (nearly 5.18-rc1, but not):

commit be2d3ecedd9911fbfd7e55cc9ceac5f8b79ae4cf
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date:   Sat Apr 2 12:57:17 2022 -0700

    Merge tag 'perf-tools-for-v5.18-2022-04-02' of
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

[1]
[37277.345917] run fstests generic/670 at 2022-04-03 17:02:54 
[37278.883000] XFS (vda3): Mounting V5 Filesystem 
[37278.891732] XFS (vda3): Ending clean mount 
[37278.920425] XFS (vda3): Unmounting Filesystem 
[37279.399805] XFS (vda3): Mounting V5 Filesystem 
[37279.407734] XFS (vda3): Ending clean mount 
[37280.068575] XFS (vda3): Unmounting Filesystem 
[37280.399733] XFS (vda3): Mounting V5 Filesystem 
[37280.410122] XFS (vda3): Ending clean mount 
[37285.232165] Unable to handle kernel paging request at virtual address
fffffbffff000008 
[37285.232776] KASAN: maybe wild-memory-access in range
[0x0003dffff8000040-0x0003dffff8000047] 
[37285.233332] Mem abort info: 
[37285.233520]   ESR = 0x96000006 
[37285.233725]   EC = 0x25: DABT (current EL), IL = 32 bits 
[37285.234077]   SET = 0, FnV = 0 
[37285.234281]   EA = 0, S1PTW = 0 
[37285.234544]   FSC = 0x06: level 2 translation fault 
[37285.234871] Data abort info: 
[37285.235065]   ISV = 0, ISS = 0x00000006 
[37285.235319]   CM = 0, WnR = 0 
[37285.235517] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000004574eb000 
[37285.235953] [fffffbffff000008] pgd=0000000458c71003, p4d=0000000458c71003,
pud=0000000458c72003, pmd=0000000000000000 
[37285.236651] Internal error: Oops: 96000006 [#1] SMP 
[37285.236971] Modules linked in: overlay dm_zero dm_log_writes dm_thin_pool
dm_persistent_data dm_bio_prison sg dm_snapshot dm_bufio ext4 mbcache jbd2 loop
dm_flakey dm_mod tls rfkill sunrpc vfat fat drm fuse xfs libcrc32c crct10dif_ce
ghash_ce virtio_blk sha2_ce sha256_arm64 sha1_ce virtio_console virtio_net
net_failover failover virtio_mmio [last unloaded: scsi_debug] 
[37285.239187] CPU: 3 PID: 3302514 Comm: xfs_io Kdump: loaded Tainted: G       
W         5.17.0+ #1 
[37285.239810] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 
[37285.240292] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) 
[37285.240783] pc : __split_huge_pmd+0x1d8/0x34c 
[37285.241097] lr : __split_huge_pmd+0x174/0x34c 
[37285.241407] sp : ffff800023a56fe0 
[37285.241642] x29: ffff800023a56fe0 x28: 0000000000000000 x27:
ffff0001c54d4060 
[37285.242145] x26: 0000000000000000 x25: 0000000000000000 x24:
fffffc00056cf000 
[37285.242661] x23: 1ffff0000474ae0a x22: ffff0007104fe630 x21:
ffff00014fab66b0 
[37285.243175] x20: ffff800023a57080 x19: fffffbffff000000 x18:
0000000000000000 
[37285.243689] x17: 0000000000000000 x16: ffffb109a2ec7e30 x15:
0000ffffd9035c10 
[37285.244202] x14: 00000000f2040000 x13: 0000000000000000 x12:
ffff70000474aded 
[37285.244715] x11: 1ffff0000474adec x10: ffff70000474adec x9 :
dfff800000000000 
[37285.245230] x8 : ffff800023a56f63 x7 : 0000000000000001 x6 :
0000000000000003 
[37285.245745] x5 : ffff800023a56f60 x4 : ffff70000474adec x3 :
1fffe000cd086e01 
[37285.246257] x2 : 1fffff7fffe00001 x1 : 0000000000000000 x0 :
fffffbffff000008 
[37285.246770] Call trace: 
[37285.246952]  __split_huge_pmd+0x1d8/0x34c 
[37285.247246]  split_huge_pmd_address+0x10c/0x1a0 
[37285.247577]  try_to_unmap_one+0xb64/0x125c 
[37285.247878]  rmap_walk_file+0x1dc/0x4b0 
[37285.248159]  try_to_unmap+0x134/0x16c 
[37285.248427]  split_huge_page_to_list+0x5ec/0xcbc 
[37285.248763]  truncate_inode_partial_folio+0x194/0x2ec 
[37285.249128]  truncate_inode_pages_range+0x2e8/0x870 
[37285.249483]  truncate_pagecache_range+0xa0/0xc0 
[37285.249812]  xfs_flush_unmap_range+0xc8/0x10c [xfs] 
[37285.250316]  xfs_reflink_remap_prep+0x2f4/0x3ac [xfs] 
[37285.250822]  xfs_file_remap_range+0x170/0x770 [xfs] 
[37285.251314]  do_clone_file_range+0x198/0x5e0 
[37285.251629]  vfs_clone_file_range+0xa8/0x63c 
[37285.251942]  ioctl_file_clone+0x5c/0xc0 
[37285.252232]  do_vfs_ioctl+0x10d4/0x1684 
[37285.252517]  __arm64_sys_ioctl+0xcc/0x18c 
[37285.252813]  invoke_syscall.constprop.0+0x74/0x1e0 
[37285.253166]  el0_svc_common.constprop.0+0x224/0x2c0 
[37285.253525]  do_el0_svc+0xa4/0xf0 
[37285.253769]  el0_svc+0x5c/0x160 
[37285.254002]  el0t_64_sync_handler+0x9c/0x120 
[37285.254312]  el0t_64_sync+0x174/0x178 
[37285.254584] Code: 91002260 d343fc02 38e16841 35000b41 (f9400660)  
[37285.255026] SMP: stopping secondary CPUs 
[37285.292297] Starting crashdump kernel... 
[37285.292706] Bye! 
[    0.000000] Booting Linux on physical CPU 0x0000000003 [0x413fd0c1]

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