Feb 6 07:15:42 vps632258 kernel: [151336.450064] z3fold: unknown buddy id 0 Feb 6 07:15:42 vps632258 kernel: [151336.454222] WARNING: CPU: 0 PID: 558 at /build/linux-hwe-SuiNQZ/linux-hwe-4.18.0/mm/z3fold.c:971 z3fold_zpool_map+0xa2/0x100 [z3fold] Feb 6 07:15:42 vps632258 kernel: [151336.454224] Modules linked in: cpuid nf_log_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 xt_tcpudp xt_conntrack nf_conntrack libcrc32c ip6table_filter ip6_tables nf_log_ipv4 nf_log_common xt_LOG xt_limit iptable_filter bpfilter nls_iso8859_1 kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel virtio_net net_failover failover i2c_piix4 pata_acpi sch_fq_codel ip_tables x_tables autofs4 nilfs2 cirrus aesni_intel ttm aes_x86_64 crypto_simd drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cryptd glue_helper input_leds serio_raw virtio_scsi drm z3fold lz4hc lz4hc_compress Feb 6 07:15:42 vps632258 kernel: [151336.454251] CPU: 0 PID: 558 Comm: haveged Not tainted 4.18.0-14-generic #15~18.04.1-Ubuntu Feb 6 07:15:42 vps632258 kernel: [151336.454252] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 2:1.10.2-58953eb7 04/01/2014 Feb 6 07:15:42 vps632258 kernel: [151336.454254] RIP: 0010:z3fold_zpool_map+0xa2/0x100 [z3fold] Feb 6 07:15:42 vps632258 kernel: [151336.454255] Code: 29 c6 83 e6 03 83 fe 02 74 52 83 fe 03 74 21 83 fe 01 49 8d 94 24 80 00 00 00 74 2a 31 f6 48 c7 c7 e8 b0 21 c0 e8 91 d1 8d ea <0f> 0b 31 d2 eb 16 41 0f b7 44 24 46 c1 e0 06 48 98 49 29 c4 49 8d Feb 6 07:15:42 vps632258 kernel: [151336.454280] RSP: 0000:ffff992f0095ba40 EFLAGS: 00010286 Feb 6 07:15:42 vps632258 kernel: [151336.454282] RAX: 000000000000001a RBX: ffffd1ca44c98f40 RCX: 0000000000000000 Feb 6 07:15:42 vps632258 kernel: [151336.454283] RDX: 0000000000000000 RSI: ffff8820f9c164b8 RDI: ffff8820f9c164b8 Feb 6 07:15:42 vps632258 kernel: [151336.454284] RBP: ffff992f0095ba60 R08: 0000000000000cce R09: 0000000000000018 Feb 6 07:15:42 vps632258 kernel: [151336.454284] R10: ffff992f0095b928 R11: 0000000000010101 R12: ffff8820f263d000 Feb 6 07:15:42 vps632258 kernel: [151336.454285] R13: ffff8820f263d000 R14: ffff8820f263d010 R15: ffffd1ca444da2c0 Feb 6 07:15:42 vps632258 kernel: [151336.454287] FS: 00007f04eff81740(0000) GS:ffff8820f9c00000(0000) knlGS:0000000000000000 Feb 6 07:15:42 vps632258 kernel: [151336.454288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Feb 6 07:15:42 vps632258 kernel: [151336.454289] CR2: 00007f04efef0028 CR3: 0000000133ec4003 CR4: 00000000001606f0 Feb 6 07:15:42 vps632258 kernel: [151336.454292] Call Trace: Feb 6 07:15:42 vps632258 kernel: [151336.454300] zpool_map_handle+0x1c/0x20 Feb 6 07:15:42 vps632258 kernel: [151336.454308] zswap_frontswap_load+0x11f/0x1c0 Feb 6 07:15:42 vps632258 kernel: [151336.454310] __frontswap_load+0x7c/0xd0 Feb 6 07:15:42 vps632258 kernel: [151336.454312] swap_readpage+0x72/0x1d0 Feb 6 07:15:42 vps632258 kernel: [151336.454314] read_swap_cache_async+0x40/0x60 Feb 6 07:15:42 vps632258 kernel: [151336.454316] swap_cluster_readahead+0x251/0x290 Feb 6 07:15:42 vps632258 kernel: [151336.454319] ? __switch_to_asm+0x34/0x70 Feb 6 07:15:42 vps632258 kernel: [151336.454322] ? __schedule+0x2bf/0x880 Feb 6 07:15:42 vps632258 kernel: [151336.454324] ? __switch_to_asm+0x40/0x70 Feb 6 07:15:42 vps632258 kernel: [151336.454325] swapin_readahead+0x60/0x500 Feb 6 07:15:42 vps632258 kernel: [151336.454329] ? swapin_readahead+0x60/0x500 Feb 6 07:15:42 vps632258 kernel: [151336.454336] ? radix_tree_lookup_slot+0x22/0x50 Feb 6 07:15:42 vps632258 kernel: [151336.454338] ? find_get_entry+0x1e/0x110 Feb 6 07:15:42 vps632258 kernel: [151336.454339] ? pagecache_get_page+0x2c/0x2a0 Feb 6 07:15:42 vps632258 kernel: [151336.454343] do_swap_page+0x319/0x980 Feb 6 07:15:42 vps632258 kernel: [151336.454345] ? do_swap_page+0x319/0x980 Feb 6 07:15:42 vps632258 kernel: [151336.454347] handle_pte_fault+0x2c6/0xd20 Feb 6 07:15:42 vps632258 kernel: [151336.454350] ? seccomp_run_filters+0x5d/0xc0 Feb 6 07:15:42 vps632258 kernel: [151336.454352] __handle_mm_fault+0x3fd/0x580 Feb 6 07:15:42 vps632258 kernel: [151336.454355] handle_mm_fault+0xe3/0x220 Feb 6 07:15:42 vps632258 kernel: [151336.454359] __do_page_fault+0x250/0x4d0 Feb 6 07:15:42 vps632258 kernel: [151336.454361] do_page_fault+0x2d/0xf0 Feb 6 07:15:42 vps632258 kernel: [151336.454363] ? async_page_fault+0x8/0x30 Feb 6 07:15:42 vps632258 kernel: [151336.454366] do_async_page_fault+0x51/0x80 Feb 6 07:15:42 vps632258 kernel: [151336.454368] async_page_fault+0x1e/0x30 Feb 6 07:15:42 vps632258 kernel: [151336.454369] RIP: 0033:0x7f04efb6618d Feb 6 07:15:42 vps632258 kernel: [151336.454370] Code: 00 eb ba 48 89 ef 41 c7 44 24 60 13 00 00 00 31 ed e8 07 fe ff ff eb a5 0f 1f 44 00 00 41 55 41 54 55 53 48 89 fb 48 83 ec 08 <8b> 57 18 8b 47 14 39 c2 72 5e 4c 8b 27 4d 8b 6c 24 30 4d 85 ed 74 Feb 6 07:15:42 vps632258 kernel: [151336.454395] RSP: 002b:00007ffd1a4e9780 EFLAGS: 00010202 Feb 6 07:15:42 vps632258 kernel: [151336.454396] RAX: 000000000000007f RBX: 00007f04efef0010 RCX: 00000000000001fd Feb 6 07:15:42 vps632258 kernel: [151336.454397] RDX: 0000000000000080 RSI: 00005562dbc58fd8 RDI: 00007f04efef0010 Feb 6 07:15:42 vps632258 kernel: [151336.454398] RBP: 00005562dbc588a0 R08: 0000000000000000 R09: 00007f04eff70088 Feb 6 07:15:42 vps632258 kernel: [151336.454399] R10: 0000000000000000 R11: 0000000000000246 R12: 00005562dbc591d8 Feb 6 07:15:42 vps632258 kernel: [151336.454399] R13: 0000000000000080 R14: 00005562dbc588a0 R15: 00005562dbc58fd0 Feb 6 07:15:42 vps632258 kernel: [151336.454401] ---[ end trace 4bd9188a2d29c108 ]--- Feb 6 07:15:42 vps632258 kernel: [151336.454450] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 Feb 6 07:15:42 vps632258 kernel: [151336.458584] PGD 0 P4D 0 Feb 6 07:15:42 vps632258 kernel: [151336.461755] Oops: 0000 [#1] SMP PTI Feb 6 07:15:42 vps632258 kernel: [151336.465268] CPU: 0 PID: 558 Comm: haveged Tainted: G W 4.18.0-14-generic #15~18.04.1-Ubuntu Feb 6 07:15:42 vps632258 kernel: [151336.469539] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 2:1.10.2-58953eb7 04/01/2014 Feb 6 07:15:42 vps632258 kernel: [151336.473441] RIP: 0010:LZ4_decompress_safe+0x4b/0x3b0 Feb 6 07:15:42 vps632258 kernel: [151336.476903] Code: 49 89 f0 48 89 e5 41 57 41 56 41 55 41 54 4d 8d 7a f8 53 4d 8d 6a fc 49 89 f4 48 83 ec 18 48 89 45 d0 49 8d 41 fb 48 89 45 c8 <0f> b6 07 48 8d 77 01 41 89 c6 c1 e8 04 83 f8 0f 89 c2 0f 84 af 00 Feb 6 07:15:42 vps632258 kernel: [151336.485118] RSP: 0000:ffff992f0095ba08 EFLAGS: 00010292 Feb 6 07:15:42 vps632258 kernel: [151336.488503] RAX: ffff8820d368bffb RBX: ffff992f0095ba8c RCX: ffff8820d368bff4 Feb 6 07:15:42 vps632258 kernel: [151336.492044] RDX: 0000000000000fd2 RSI: ffff8820d368b000 RDI: 0000000000000008 Feb 6 07:15:42 vps632258 kernel: [151336.495572] RBP: ffff992f0095ba48 R08: ffff8820d368b000 R09: ffff8820d368c000 Feb 6 07:15:42 vps632258 kernel: [151336.499298] R10: 0000000000000fda R11: 0000000000000fcb R12: ffff8820d368b000 Feb 6 07:15:42 vps632258 kernel: [151336.502858] R13: 0000000000000fd6 R14: ffff8820efb31d50 R15: 0000000000000fd2 Feb 6 07:15:42 vps632258 kernel: [151336.506718] FS: 00007f04eff81740(0000) GS:ffff8820f9c00000(0000) knlGS:0000000000000000 Feb 6 07:15:42 vps632258 kernel: [151336.510733] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Feb 6 07:15:42 vps632258 kernel: [151336.514059] CR2: 0000000000000008 CR3: 0000000133ec4003 CR4: 00000000001606f0 Feb 6 07:15:42 vps632258 kernel: [151336.517525] Call Trace: Feb 6 07:15:42 vps632258 kernel: [151336.520184] lz4hc_decompress_crypto+0x1b/0x30 [lz4hc] Feb 6 07:15:42 vps632258 kernel: [151336.523234] crypto_decompress+0x19/0x20 Feb 6 07:15:42 vps632258 kernel: [151336.526143] zswap_frontswap_load+0x18b/0x1c0 Feb 6 07:15:42 vps632258 kernel: [151336.528942] __frontswap_load+0x7c/0xd0 Feb 6 07:15:42 vps632258 kernel: [151336.531681] swap_readpage+0x72/0x1d0 Feb 6 07:15:42 vps632258 kernel: [151336.534294] read_swap_cache_async+0x40/0x60 Feb 6 07:15:42 vps632258 kernel: [151336.538648] swap_cluster_readahead+0x251/0x290 Feb 6 07:15:42 vps632258 kernel: [151336.542490] ? __switch_to_asm+0x34/0x70 Feb 6 07:15:42 vps632258 kernel: [151336.546044] ? __schedule+0x2bf/0x880 Feb 6 07:15:42 vps632258 kernel: [151336.549347] ? __switch_to_asm+0x40/0x70 Feb 6 07:15:42 vps632258 kernel: [151336.551844] swapin_readahead+0x60/0x500 Feb 6 07:15:42 vps632258 kernel: [151336.554396] ? swapin_readahead+0x60/0x500 Feb 6 07:15:42 vps632258 kernel: [151336.556891] ? radix_tree_lookup_slot+0x22/0x50 Feb 6 07:15:42 vps632258 kernel: [151336.559456] ? find_get_entry+0x1e/0x110 Feb 6 07:15:42 vps632258 kernel: [151336.561880] ? pagecache_get_page+0x2c/0x2a0 Feb 6 07:15:42 vps632258 kernel: [151336.564294] do_swap_page+0x319/0x980 Feb 6 07:15:42 vps632258 kernel: [151336.566531] ? do_swap_page+0x319/0x980 Feb 6 07:15:42 vps632258 kernel: [151336.568693] handle_pte_fault+0x2c6/0xd20 Feb 6 07:15:42 vps632258 kernel: [151336.570850] ? seccomp_run_filters+0x5d/0xc0 Feb 6 07:15:42 vps632258 kernel: [151336.573085] __handle_mm_fault+0x3fd/0x580 Feb 6 07:15:42 vps632258 kernel: [151336.575615] handle_mm_fault+0xe3/0x220 Feb 6 07:15:42 vps632258 kernel: [151336.577928] __do_page_fault+0x250/0x4d0 Feb 6 07:15:42 vps632258 kernel: [151336.579903] do_page_fault+0x2d/0xf0 Feb 6 07:15:42 vps632258 kernel: [151336.582286] ? async_page_fault+0x8/0x30 Feb 6 07:15:42 vps632258 kernel: [151336.584695] do_async_page_fault+0x51/0x80 Feb 6 07:15:42 vps632258 kernel: [151336.587571] async_page_fault+0x1e/0x30 Feb 6 07:15:42 vps632258 kernel: [151336.590581] RIP: 0033:0x7f04efb6618d Feb 6 07:15:42 vps632258 kernel: [151336.593252] Code: 00 eb ba 48 89 ef 41 c7 44 24 60 13 00 00 00 31 ed e8 07 fe ff ff eb a5 0f 1f 44 00 00 41 55 41 54 55 53 48 89 fb 48 83 ec 08 <8b> 57 18 8b 47 14 39 c2 72 5e 4c 8b 27 4d 8b 6c 24 30 4d 85 ed 74 Feb 6 07:15:42 vps632258 kernel: [151336.600435] RSP: 002b:00007ffd1a4e9780 EFLAGS: 00010202 Feb 6 07:15:42 vps632258 kernel: [151336.602792] RAX: 000000000000007f RBX: 00007f04efef0010 RCX: 00000000000001fd Feb 6 07:15:42 vps632258 kernel: [151336.605433] RDX: 0000000000000080 RSI: 00005562dbc58fd8 RDI: 00007f04efef0010 Feb 6 07:15:42 vps632258 kernel: [151336.607989] RBP: 00005562dbc588a0 R08: 0000000000000000 R09: 00007f04eff70088 Feb 6 07:15:42 vps632258 kernel: [151336.610573] R10: 0000000000000000 R11: 0000000000000246 R12: 00005562dbc591d8 Feb 6 07:15:42 vps632258 kernel: [151336.613149] R13: 0000000000000080 R14: 00005562dbc588a0 R15: 00005562dbc58fd0 Feb 6 07:15:42 vps632258 kernel: [151336.615625] Modules linked in: cpuid nf_log_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 xt_tcpudp xt_conntrack nf_conntrack libcrc32c ip6table_filter ip6_tables nf_log_ipv4 nf_log_common xt_LOG xt_limit iptable_filter bpfilter nls_iso8859_1 kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel virtio_net net_failover failover i2c_piix4 pata_acpi sch_fq_codel ip_tables x_tables autofs4 nilfs2 cirrus aesni_intel ttm aes_x86_64 crypto_simd drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cryptd glue_helper input_leds serio_raw virtio_scsi drm z3fold lz4hc lz4hc_compress Feb 6 07:15:42 vps632258 kernel: [151336.631283] CR2: 0000000000000008 Feb 6 07:15:42 vps632258 kernel: [151336.633250] ---[ end trace 4bd9188a2d29c109 ]--- Feb 6 07:15:42 vps632258 kernel: [151336.635344] RIP: 0010:LZ4_decompress_safe+0x4b/0x3b0 Feb 6 07:15:42 vps632258 kernel: [151336.638116] Code: 49 89 f0 48 89 e5 41 57 41 56 41 55 41 54 4d 8d 7a f8 53 4d 8d 6a fc 49 89 f4 48 83 ec 18 48 89 45 d0 49 8d 41 fb 48 89 45 c8 <0f> b6 07 48 8d 77 01 41 89 c6 c1 e8 04 83 f8 0f 89 c2 0f 84 af 00 Feb 6 07:15:42 vps632258 kernel: [151336.644614] RSP: 0000:ffff992f0095ba08 EFLAGS: 00010292 Feb 6 07:15:42 vps632258 kernel: [151336.646931] RAX: ffff8820d368bffb RBX: ffff992f0095ba8c RCX: ffff8820d368bff4 Feb 6 07:15:42 vps632258 kernel: [151336.650504] RDX: 0000000000000fd2 RSI: ffff8820d368b000 RDI: 0000000000000008 Feb 6 07:15:42 vps632258 kernel: [151336.654320] RBP: ffff992f0095ba48 R08: ffff8820d368b000 R09: ffff8820d368c000 Feb 6 07:15:42 vps632258 kernel: [151336.657537] R10: 0000000000000fda R11: 0000000000000fcb R12: ffff8820d368b000 Feb 6 07:15:42 vps632258 kernel: [151336.660879] R13: 0000000000000fd6 R14: ffff8820efb31d50 R15: 0000000000000fd2 Feb 6 07:15:42 vps632258 kernel: [151336.663612] FS: 00007f04eff81740(0000) GS:ffff8820f9c00000(0000) knlGS:0000000000000000 Feb 6 07:15:42 vps632258 kernel: [151336.666226] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Feb 6 07:15:42 vps632258 kernel: [151336.668584] CR2: 0000000000000008 CR3: 0000000133ec4003 CR4: 00000000001606f0