Hi,
Recently I hit below kernel assertion[1] many times, by running xfstests xfs/538
on xfs. I reproduced it on s390x with 1k blocksize xfs, I'll try it on other
arches if you need.
Thanks,
Zorro
[1]
[ 459.264036] run fstests xfs/538 at 2025-04-27 11:33:00
[ 459.517809] XFS (loop1): Mounting V5 Filesystem 1598811d-b0ce-47b2-99f9-265f2a1cd4ab
[ 459.519201] XFS (loop1): Ending clean mount
[ 524.631247] xfs_errortag_test: 65989 callbacks suppressed
[ 524.631254] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 524.631259] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 524.631289] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 524.631303] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 524.631309] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
...
[ 544.675052] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 544.675066] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 544.675107] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 544.675176] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 547.476961] XFS: Assertion failed: pathlen == 0, file: fs/xfs/libxfs/xfs_symlink_remote.c, line: 383
[ 547.477050] ------------[ cut here ]------------
[ 547.477052] WARNING: CPU: 1 PID: 82934 at fs/xfs/xfs_message.c:104 assfail+0x4e/0x70 [xfs]
[ 547.477585] Modules linked in: sunrpc rfkill virtio_net net_failover failover pkey_pckmo vfio_ccw mdev vfio_iommu_type1 vfio iommufd drm fuse drm_panel_orientation_quirks loop i2c_core nfnetlink vsock_loopback vmw_vsock_virtio_transport_common vsock ctcm fsm qeth ccwgroup zfcp scsi_transport_fc qdio dasd_fba_mod dasd_eckd_mod dasd_mod xfs ghash_s390 prng des_s390 sha3_512_s390 virtio_blk sha3_256_s390 dm_mirror dm_region_hash dm_log dm_mod pkey aes_s390
[ 547.477628] CPU: 1 UID: 0 PID: 82934 Comm: fsstress Kdump: loaded Not tainted 6.15.0-rc3+ #1 NONE
[ 547.477633] Hardware name: IBM 8561 LT1 400 (KVM/Linux)
[ 547.477637] Krnl PSW : 0704c00180000000 0000016b2022a642 (assfail+0x52/0x70 [xfs])
[ 547.477864] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3
[ 547.477868] Krnl GPRS: 00000000ffffffea 0000016b202f0770 ffffffffffffffea 000000000000000a
[ 547.477872] 000000ebffffffea 0000000000000000 0000016b20465d94 0000000000000001
[ 547.477874] 0000000000000000 00000000f2a19000 0000000000000025 0000000094ff0740
[ 547.477876] 0000000000000001 00000000de4eb838 0000016b2022a630 000000eba0d679e8
[ 547.477887] Krnl Code: 0000016b2022a636: 95001018 cli 24(%r1),0
0000016b2022a63a: a774000a brc 7,0000016b2022a64e
#0000016b2022a63e: af000000 mc 0,0
>0000016b2022a642: eb6ff0a80004 lmg %r6,%r15,168(%r15)
0000016b2022a648: 07fe bcr 15,%r14
0000016b2022a64a: 47000700 bc 0,1792
0000016b2022a64e: af000000 mc 0,0
0000016b2022a652: 0707 bcr 0,%r7
[ 547.477909] Call Trace:
[ 547.477911] [<0000016b2022a642>] assfail+0x52/0x70 [xfs]
[ 547.478145] ([<0000016b2022a630>] assfail+0x40/0x70 [xfs])
[ 547.478381] [<0000016b201f45be>] xfs_symlink_write_target+0x30e/0x320 [xfs]
[ 547.478589] [<0000016b20234a52>] xfs_symlink+0x432/0x530 [xfs]
[ 547.478822] [<0000016b20222c7e>] xfs_vn_symlink+0x9e/0x1d0 [xfs]
[ 547.479043] [<0000016ba04b00f2>] vfs_symlink+0x172/0x210
[ 547.479050] [<0000016ba04b4b86>] do_symlinkat+0xe6/0x110
[ 547.479054] [<0000016ba04b4d5a>] __s390x_sys_symlink+0x5a/0x70
[ 547.479057] [<0000016ba0bef49c>] __do_syscall+0x15c/0x260
[ 547.479064] [<0000016ba0bfa7e4>] system_call+0x74/0x98
[ 547.479068] Last Breaking-Event-Address:
[ 547.479069] [<0000016b202e29d6>] xfs_printk_level+0x9e/0xa8 [xfs]
[ 547.479299] ---[ end trace 0000000000000000 ]---
[ 549.680432] xfs_errortag_test: 65876 callbacks suppressed
[ 549.680440] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 549.680864] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
[ 549.680950] XFS (loop1): Injecting error (false) at file fs/xfs/libxfs/xfs_bmap.c, line 3660, on filesystem "loop1"
...
