设备环境：
虚拟机（磁盘直通）
系统版本号：0.8.47
BUG现象：
rsync 从远端同步文件到本地存储空间，rsync随机崩溃。
出现频率：偶现
日志文件：
[545299.413513] trimafs: trimafs_get_ancestor_mnt can't find ancestor vfsmount
[545299.415226] ------------[ cut here ]------------
[545299.415542] kernel BUG at fs/trimafs/inode.c:135!
[545299.415889] invalid opcode: 0000 [#4] PREEMPT SMP NOPTI
[545299.416197] CPU: 3 PID: 2471834 Comm: rsync Tainted: P D OE 6.6.38-trim #92
[545299.416477] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 3.20230228-4 06/06/2023
[545299.416762] RIP: 0010:trimafs_get_ancestor_mnt+0xe4/0x110
[545299.417057] Code: 5c e9 9b 35 89 00 48 8b 9b b0 00 00 00 48 85 db 0f 85 7a ff ff ff 4c 89 e7 e8 18 a4 69 00 48 c7 c7 18 ab 04 b0 e8 cc 24 cc ff <0f> 0b 0f 0b 48 c7 c7 a8 aa 04 b0 e8 bc 24 cc ff e9 20 ff ff ff 48
[545299.417645] RSP: 0018:ffffb888a28dfbe8 EFLAGS: 00010246
[545299.417956] RAX: 000000000000003e RBX: 0000000000000000 RCX: 0000000000000000
[545299.418257] RDX: 0000000000000000 RSI: ffffffffb0056902 RDI: 00000000ffffffff
[545299.418566] RBP: 0000000000000081 R08: 0000000000000000 R09: ffffb888a28dfa98
[545299.418871] R10: 0000000000000003 R11: ffffffffb02caae8 R12: ffff9f1a6dbe0ff8
[545299.419160] R13: ffffffffb036d520 R14: d0d0d0d0d0d0d0d0 R15: 2f2f2f2f2f2f2f2f
[545299.419455] FS: 00007f6150984b80(0000) GS:ffff9f1c73cc0000(0000) knlGS:0000000000000000
[545299.419750] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[545299.420046] CR2: 00007f6150997100 CR3: 00000001970fc000 CR4: 0000000000750ee0
[545299.420354] PKRU: 55555554
[545299.420645] Call Trace:
[545299.420943] <TASK>
[545299.421220] ? die+0x32/0x80
[545299.421500] ? do_trap+0xd6/0x100
[545299.421773] ? trimafs_get_ancestor_mnt+0xe4/0x110
[545299.422046] ? do_error_trap+0x6a/0x90
[545299.422309] ? trimafs_get_ancestor_mnt+0xe4/0x110
[545299.422574] ? exc_invalid_op+0x4c/0x60
[545299.422836] ? trimafs_get_ancestor_mnt+0xe4/0x110
[545299.423075] ? asm_exc_invalid_op+0x16/0x20
[545299.423318] ? trimafs_get_ancestor_mnt+0xe4/0x110
[545299.423554] ? trimafs_get_ancestor_mnt+0xe4/0x110
[545299.423782] trimafs_permission+0x33/0xc0
[545299.423999] inode_permission+0xd7/0x190
[545299.424219] link_path_walk.part.0.constprop.0+0xd0/0x380
[545299.424430] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.424644] ? path_init+0x5c/0x3d0
[545299.424850] path_parentat+0x3b/0x90
[545299.425051] __filename_parentat+0xe9/0x210
[545299.425253] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.425442] ? preempt_count_add+0x47/0xa0
[545299.425631] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.425831] ? up_write+0x35/0x60
[545299.426016] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.426200] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.426394] do_renameat2+0x9b/0x590
[545299.426588] ? preempt_count_add+0x47/0xa0
[545299.426769] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.426944] ? __virt_addr_valid+0xb0/0x140
[545299.427134] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.427306] ? __check_object_size+0x16a/0x2c0
[545299.427500] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.427689] ? strncpy_from_user+0x49/0x110
[545299.427861] ? srso_alias_return_thunk+0x5/0xfbef5
[545299.428030] __x64_sys_rename+0x3f/0x50
[545299.428196] do_syscall_64+0x34/0x80
[545299.428371] entry_SYSCALL_64_after_hwframe+0x78/0xe2
[545299.428561] RIP: 0033:0x7f6150277a87
[545299.428740] Code: e8 be 10 0a 00 f7 d8 19 c0 5b c3 0f 1f 84 00 00 00 00 00 b8 ff ff ff ff 5b c3 66 0f 1f 84 00 00 00 00 00 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 49 93 17 00 f7 d8 64 89 02 b8
[545299.429060] RSP: 002b:00007ffc936a61b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
[545299.429224] RAX: ffffffffffffffda RBX: 00007ffc936a8370 RCX: 00007f6150277a87
[545299.429395] RDX: 0000000000000000 RSI: 00007ffc936a6370 RDI: 00007ffc936a8370
[545299.429560] RBP: 00007ffc936a6370 R08: 00007f61503b94e0 R09: cccccccccccccccd
[545299.429730] R10: 00007ffc936a5fb0 R11: 0000000000000246 R12: 0000000000000000
[545299.429893] R13: 00007ffc936a8370 R14: 00000000000081ad R15: 0000000000000004
[545299.430056] </TASK>
[545299.430213] Modules linked in: cmac(E) veth(E) nf_conntrack_netlink(E) xt_nat(E) xt_tcpudp(E) xt_conntrack(E) xt_MASQUERADE(E) bridge(E) stp(E) llc(E) xt_set(E) ip_set(E) nft_chain_nat(E) xt_addrtype(E) nft_compat(E) nf_tables(E) nfnetlink(E) xfrm_user(E) xfrm_algo(E) nls_utf8(E) cifs(E) cifs_arc4(E) nls_ucs2_utils(E) cifs_md4(E) dns_resolver(E) overlay(E) openvswitch(E) nsh(E) nf_conncount(E) nf_nat(E) nf_conntrack(E) nf_defrag_ipv6(E) nvidia_uvm(POE) nf_defrag_ipv4(E) qrtr(E) rfkill(E) binfmt_misc(E) nls_ascii(E) nls_cp437(E) vfat(E) fat(E) intel_rapl_msr(E) intel_rapl_common(E) nvidia_drm(POE) nvidia_modeset(POE) kvm_amd(E) ccp(E) rng_core(E) nvidia(POE) kvm(E) irqbypass(E) ghash_clmulni_intel(E) sha512_ssse3(E) sha512_generic(E) sha256_ssse3(E) sha1_ssse3(E) aesni_intel(E) snd_hda_intel(E) iTCO_wdt(E) libaes(E) intel_pmc_bxt(E) snd_intel_dspcfg(E) video(E) iTCO_vendor_support(E) crypto_simd(E) snd_intel_sdw_acpi(E) cryptd(E) snd_pcsp(E) wmi(E) virtio_balloon(E) watchdog(E) snd_hda_codec(E) snd_hda_core(E)
[545299.430379] snd_hwdep(E) snd_pcm(E) snd_timer(E) bochs(E) drm_vram_helper(E) drm_ttm_helper(E) snd(E) ttm(E) drm_kms_helper(E) button(E) soundcore(E) joydev(E) evdev(E) sg(E) serio_raw(E) nfsd(E) auth_rpcgss(E) nfs_acl(E) msr(E) lockd(E) grace(E) bonding(E) drm(E) loop(E) fuse(E) efi_pstore(E) configfs(E) sunrpc(E) qemu_fw_cfg(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) btrfs(E) blake2b_generic(E) efivarfs(E) raid10(E) raid456(E) async_raid6_recov(E) async_memcpy(E) async_pq(E) async_xor(E) async_tx(E) xor(E) raid6_pq(E) libcrc32c(E) crc32c_generic(E) raid1(E) raid0(E) dm_mod(E) linear(E) md_mod(E) hid_generic(E) usbhid(E) hid(E) sd_mod(E) t10_pi(E) crc64_rocksoft(E) crc64(E) sr_mod(E) crc_t10dif(E) crct10dif_generic(E) cdrom(E) virtio_net(E) net_failover(E) failover(E) ahci(E) virtio_pci(E) libahci(E) crct10dif_pclmul(E) virtio_pci_legacy_dev(E) ehci_pci(E) uhci_hcd(E) libata(E) virtio_pci_modern_dev(E) crct10dif_common(E) virtio(E) crc32_pclmul(E) ehci_hcd(E) i2c_i801(E)
[545299.431894] crc32c_intel(E) virtio_ring(E) psmouse(E) scsi_mod(E) i2c_smbus(E) scsi_common(E) lpc_ich(E) usbcore(E) usb_common(E)
[545299.434108] ---[ end trace 0000000000000000 ]---
[545299.447497] RIP: 0010:trimafs_get_ancestor_mnt+0xe4/0x110
[545299.447784] Code: 5c e9 9b 35 89 00 48 8b 9b b0 00 00 00 48 85 db 0f 85 7a ff ff ff 4c 89 e7 e8 18 a4 69 00 48 c7 c7 18 ab 04 b0 e8 cc 24 cc ff <0f> 0b 0f 0b 48 c7 c7 a8 aa 04 b0 e8 bc 24 cc ff e9 20 ff ff ff 48
[545299.448300] RSP: 0018:ffffb8888673fc48 EFLAGS: 00010246
[545299.448560] RAX: 000000000000003e RBX: 0000000000000000 RCX: 0000000000000000
[545299.448827] RDX: 0000000000000000 RSI: ffffffffb0056902 RDI: 00000000ffffffff
[545299.449091] RBP: 0000000000000081 R08: 0000000000000000 R09: ffffb8888673faf8
[545299.449354] R10: 0000000000000003 R11: ffffffffb02caae8 R12: ffff9f1913952c28
[545299.449625] R13: ffffffffb036d520 R14: d0d0d0d0d0d0d0d0 R15: 2f2f2f2f2f2f2f2f
[545299.449903] FS: 00007f6150984b80(0000) GS:ffff9f1c73cc0000(0000) knlGS:0000000000000000
[545299.450172] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[545299.450453] CR2: 00007f6150997100 CR3: 00000001970fc000 CR4: 0000000000750ee0
[545299.450762] PKRU: 55555554
2025-5-8 17:30:46
2025-5-13 12:12:22