[ 1965.273661] BUG: unable to handle kernel paging request at 0000007e9d675025 [ 1965.282458] IP: kmem_cache_alloc+0x71/0x1a0 [ 1965.288487] PGD 1f9dd1a067 P4D 1f9dd1a067 PUD 0 [ 1965.294832] Oops: 0000 [#191] SMP [ 1965.299860] Modules linked in: binfmt_misc nls_iso8859_1 joydev input_leds amd64_edac_mod edac_mce_amd kvm_amd kvm ccp shpchp irqbypass i2c_piix4 k10temp ipmi_ssif ipmi_si ipmi_devintf ipmi_msghandler 8250_dw mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables autofs4 btrfs zstd_decompress zstd_compress xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast i2c_algo_bit ttm crct10dif_pclmul [ 1965.383660] hid_generic drm_kms_helper crc32_pclmul ixgbe ghash_clmulni_intel syscopyarea usbhid sysfillrect pcbc sysimgblt fb_sys_fops hid aesni_intel drm dca aes_x86_64 crypto_simd ahci ptp glue_helper cryptd libahci pps_core mdio [ 1965.408367] CPU: 26 PID: 13844 Comm: bash Tainted: G D 4.15.2 #1 [ 1965.417499] Hardware name: Supermicro Super Server/H11DSi-NT, BIOS 1.0c 02/07/2018 [ 1965.426958] RIP: 0010:kmem_cache_alloc+0x71/0x1a0 [ 1965.433531] RSP: 0018:ffffb9c81d3c7e88 EFLAGS: 00010202 [ 1965.440570] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000b500 [ 1965.449568] RDX: 000000000000b4ff RSI: 00000000014000c0 RDI: 00003afe8c8315c0 [ 1965.458454] RBP: 0000007e9d675025 R08: ffffd9887c2b15c0 R09: 00007f7912c894d0 [ 1965.467325] R10: 00000000000002c6 R11: 0000000000000246 R12: 00000000014000c0 [ 1965.476197] R13: ffffffffa0aa52c1 R14: ffff9ea9580988c0 R15: ffff9e696f72b480 [ 1965.485078] FS: 00007f791354db80(0000) GS:ffff9e89efa80000(0000) knlGS:0000000000000000 [ 1965.494926] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1965.502429] CR2: 0000007e9d675025 CR3: 0000001fa146f000 CR4: 00000000003406e0 [ 1965.511337] Call Trace: [ 1965.515553] prepare_creds+0x21/0x100 [ 1965.520983] SyS_access+0x45/0x220 [ 1965.526105] do_syscall_64+0x6b/0x120 [ 1965.531462] entry_SYSCALL_64_after_hwframe+0x21/0x86 [ 1965.538211] RIP: 0033:0x7f7912c2f12a [ 1965.543461] RSP: 002b:00007ffc3da0def8 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 1965.552753] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7912c2f12a [ 1965.561658] RDX: 00007ffc3da0df00 RSI: 0000000000000001 RDI: 00000000024c39a8 [ 1965.570555] RBP: 0000000000000000 R08: 0000000000710710 R09: 00007f7912c894d0 [ 1965.579453] R10: 00000000000002c6 R11: 0000000000000246 R12: 00000000024c39a8 [ 1965.588346] R13: 0000000000000001 R14: 00000000000003e9 R15: 00000000000003e9 [ 1965.597227] Code: 08 65 4c 03 05 c9 6b 3e 5f 49 83 78 10 00 49 8b 28 0f 84 f5 00 00 00 48 85 ed 0f 84 ec 00 00 00 49 63 46 20 49 8b 3e 48 8d 4a 01 <48> 8b 5c 05 00 48 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 ba 48 [ 1965.619668] RIP: kmem_cache_alloc+0x71/0x1a0 RSP: ffffb9c81d3c7e88 [ 1965.627618] CR2: 0000007e9d675025 [ 1965.632710] ---[ end trace d467bf380abafd52 ]---