We were seeing this too on Ubuntu 14.04.2 and Ceph Firefly, after upgrade to kernel 4.1 we are now seeing:
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261899] BUG: unable to handle kernel paging request at 000000190000001c Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261923] IP: [<ffffffff8118e476>] find_get_entries+0x66/0x160 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261941] PGD 1035954067 PUD 0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261955] Oops: 0000 [#1] SMP Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261969] Modules linked in: xfs libcrc32c ipmi_ssif intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd sb_edac edac_core lpc_ich joydev mei_me mei ioatdma wmi 8021q ipmi_si garp 8250_fintek mrp ipmi_msghandler stp llc bonding mac_hid lp parport mlx4_en vxlan ip6_udp_tunnel udp_tunnel hid_generic usbhid hid igb ahci mpt2sas mlx4_core i2c_algo_bit libahci dca raid_class ptp scsi_transport_sas pps_core arcmsr Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262182] CPU: 10 PID: 8711 Comm: ceph-osd Not tainted 4.1.0-040100-generic #201506220235 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262197] Hardware name: Supermicro X9DRD-7LN4F(-JBOD)/X9DRD-EF/X9DRD-7LN4F, BIOS 3.0a 12/05/2013 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262215] task: ffff8800721f1420 ti: ffff880fbad54000 task.ti: ffff880fbad54000 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262229] RIP: 0010:[<ffffffff8118e476>] [<ffffffff8118e476>] find_get_entries+0x66/0x160 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262248] RSP: 0018:ffff880fbad571a8 EFLAGS: 00010246 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262258] RAX: ffff880004000158 RBX: 000000000000000e RCX: 0000000000000000 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262303] RDX: ffff880004000158 RSI: ffff880fbad571c0 RDI: 0000001900000000 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262347] RBP: ffff880fbad57208 R08: 00000000000000c0 R09: 00000000000000ff Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262391] R10: 0000000000000000 R11: 0000000000000220 R12: 00000000000000b6 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262435] R13: ffff880fbad57268 R14: 000000000000000a R15: ffff880fbad572d8 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262479] FS: 00007f98cb0e0700(0000) GS:ffff88103f480000(0000) knlGS:0000000000000000 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262524] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262551] CR2: 000000190000001c CR3: 0000001034f0e000 CR4: 00000000000407e0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262596] Stack: Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262618] ffff880fbad571f8 ffff880cf6076b30 ffff880bdde05da8 00000000000000e6 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262669] 0000000000000100 ffff880cf6076b28 00000000000000b5 ffff880fbad57258 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262721] ffff880fbad57258 ffff880fbad572d8 ffffffffffffffff ffff880cf6076b28 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262772] Call Trace: Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262801] [<ffffffff8119b482>] pagevec_lookup_entries+0x22/0x30 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262831] [<ffffffff8119bd84>] truncate_inode_pages_range+0xf4/0x700 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262862] [<ffffffff8119c415>] truncate_inode_pages+0x15/0x20 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262891] [<ffffffff8119c53f>] truncate_inode_pages_final+0x5f/0xa0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262949] [<ffffffffc0431c2c>] xfs_fs_evict_inode+0x3c/0xe0 [xfs] Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262981] [<ffffffff81220558>] evict+0xb8/0x190 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263009] [<ffffffff81220671>] dispose_list+0x41/0x50 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263037] [<ffffffff8122176f>] prune_icache_sb+0x4f/0x60 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263067] [<ffffffff81208ab5>] super_cache_scan+0x155/0x1a0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263096] [<ffffffff8119d26f>] do_shrink_slab+0x13f/0x2c0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263126] [<ffffffff811a22b0>] ? shrink_lruvec+0x330/0x370 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263157] [<ffffffff811b4189>] ? isolate_migratepages_block+0x299/0x5c0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263188] [<ffffffff8119d558>] shrink_slab+0xd8/0x110 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263217] [<ffffffff811a25bf>] shrink_zone+0x2cf/0x300 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263246] [<ffffffff811b4d3d>] ? compact_zone+0x7d/0x4f0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263275] [<ffffffff811a2a64>] shrink_zones+0x104/0x2a0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263304] [<ffffffff811b53ad>] ? compact_zone_order+0x5d/0x70 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263336] [<ffffffff810f1666>] ? ktime_get+0x46/0xb0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263365] [<ffffffff811a2cd7>] do_try_to_free_pages+0xd7/0x160 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263396] [<ffffffff811a3017>] try_to_free_pages+0xb7/0x170 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263427] [<ffffffff8119571a>] __alloc_pages_nodemask+0x5ba/0x9c0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263460] [<ffffffff811dc9bc>] alloc_pages_current+0x9c/0x110 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263492] [<ffffffff811e4f2a>] allocate_slab+0x20a/0x2e0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263522] [<ffffffff811e5031>] new_slab+0x31/0x1f0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263553] [<ffffffff817f8dd9>] __slab_alloc+0x18e/0x2a3 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263584] [<ffffffff816d7817>] ? __alloc_skb+0x87/0x2b0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263614] [<ffffffff816d77e7>] ? __alloc_skb+0x57/0x2b0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263643] [<ffffffff811e9b7b>] __kmalloc_node_track_caller+0xbb/0x2b0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263675] [<ffffffff816d7817>] ? __alloc_skb+0x87/0x2b0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263704] [<ffffffff816d737c>] __kmalloc_reserve.isra.57+0x3c/0xa0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263734] [<ffffffff816d7817>] __alloc_skb+0x87/0x2b0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263766] [<ffffffff81737de1>] sk_stream_alloc_skb+0x41/0x130 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263796] [<ffffffff817388b3>] tcp_sendmsg+0x2d3/0xa90 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263827] [<ffffffff81764477>] inet_sendmsg+0x67/0xa0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263858] [<ffffffff816cea54>] ? copy_msghdr_from_user+0x154/0x1b0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263891] [<ffffffff816cdcfd>] sock_sendmsg+0x4d/0x60 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263920] [<ffffffff816cef93>] ___sys_sendmsg+0x2b3/0x2c0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263950] [<ffffffff810a853c>] ? ttwu_do_wakeup+0x2c/0x100 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263979] [<ffffffff810a8826>] ? ttwu_do_activate.constprop.121+0x66/0x70 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264011] [<ffffffff810abef5>] ? try_to_wake_up+0x215/0x2a0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264040] [<ffffffff810abfb0>] ? wake_up_state+0x10/0x20 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264071] [<ffffffff810fce86>] ? wake_futex+0x76/0xb0 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264099] [<ffffffff810fe192>] ? futex_wake+0x72/0x140 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264127] [<ffffffff81222675>] ? __fget_light+0x25/0x70 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264155] [<ffffffff816cf9b9>] __sys_sendmsg+0x49/0x90 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264184] [<ffffffff816cfa19>] SyS_sendmsg+0x19/0x20 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264215] [<ffffffff8180d272>] system_call_fastpath+0x16/0x75 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264243] Code: 00 4c 89 65 c0 31 d2 e9 86 00 00 00 66 0f 1f 84 00 00 00 00 00 48 8b 3a 48 85 ff 0f 84 ad 00 00 00 40 f6 c7 03 0f 85 a9 00 00 00 <8b> 4f 1c 85 c9 74 e3 8d 71 01 4c 8d 47 1c 89 c8 f0 0f b1 77 1c Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264467] RIP [<ffffffff8118e476>] find_get_entries+0x66/0x160 Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264499] RSP <ffff880fbad571a8> Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264522] CR2: 000000190000001c Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264824] ---[ end trace ae271fe24c8d817e ]---
We were seeing this too on Ubuntu 14.04.2 and Ceph Firefly, after upgrade to kernel 4.1 we are now seeing:
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261899] BUG: unable to handle kernel paging request at 000000190000001c 476>] find_get_ entries+ 0x66/0x160 temp_thermal intel_powerclamp coretemp kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd sb_edac edac_core lpc_ich joydev mei_me mei ioatdma wmi 8021q ipmi_si garp 8250_fintek mrp ipmi_msghandler stp llc bonding mac_hid lp parport mlx4_en vxlan ip6_udp_tunnel udp_tunnel hid_generic usbhid hid igb ahci mpt2sas mlx4_core i2c_algo_bit libahci dca raid_class ptp scsi_transport_sas pps_core arcmsr generic #201506220235 -JBOD)/ X9DRD-EF/ X9DRD-7LN4F, BIOS 3.0a 12/05/2013 ffffffff8118e47 6>] [<ffffffff8118e 476>] find_get_ entries+ 0x66/0x160 d571a8 EFLAGS: 00010246 0(0000) GS:ffff88103f48 0000(0000) knlGS:000000000 0000000 482>] pagevec_ lookup_ entries+ 0x22/0x30 d84>] truncate_ inode_pages_ range+0xf4/ 0x700 415>] truncate_ inode_pages+ 0x15/0x20 53f>] truncate_ inode_pages_ final+0x5f/ 0xa0 c2c>] xfs_fs_ evict_inode+ 0x3c/0xe0 [xfs] 558>] evict+0xb8/0x190 671>] dispose_ list+0x41/ 0x50 76f>] prune_icache_ sb+0x4f/ 0x60 ab5>] super_cache_ scan+0x155/ 0x1a0 26f>] do_shrink_ slab+0x13f/ 0x2c0 2b0>] ? shrink_ lruvec+ 0x330/0x370 189>] ? isolate_ migratepages_ block+0x299/ 0x5c0 558>] shrink_ slab+0xd8/ 0x110 5bf>] shrink_ zone+0x2cf/ 0x300 d3d>] ? compact_ zone+0x7d/ 0x4f0 a64>] shrink_ zones+0x104/ 0x2a0 3ad>] ? compact_ zone_order+ 0x5d/0x70 666>] ? ktime_get+0x46/0xb0 cd7>] do_try_ to_free_ pages+0xd7/ 0x160 017>] try_to_ free_pages+ 0xb7/0x170 71a>] __alloc_ pages_nodemask+ 0x5ba/0x9c0 9bc>] alloc_pages_ current+ 0x9c/0x110 f2a>] allocate_ slab+0x20a/ 0x2e0 031>] new_slab+0x31/0x1f0 dd9>] __slab_ alloc+0x18e/ 0x2a3 817>] ? __alloc_ skb+0x87/ 0x2b0 7e7>] ? __alloc_ skb+0x57/ 0x2b0 b7b>] __kmalloc_ node_track_ caller+ 0xbb/0x2b0 817>] ? __alloc_ skb+0x87/ 0x2b0 37c>] __kmalloc_ reserve. isra.57+ 0x3c/0xa0 817>] __alloc_ skb+0x87/ 0x2b0 de1>] sk_stream_ alloc_skb+ 0x41/0x130 8b3>] tcp_sendmsg+ 0x2d3/0xa90 477>] inet_sendmsg+ 0x67/0xa0 a54>] ? copy_msghdr_ from_user+ 0x154/0x1b0 cfd>] sock_sendmsg+ 0x4d/0x60 f93>] ___sys_ sendmsg+ 0x2b3/0x2c0 53c>] ? ttwu_do_ wakeup+ 0x2c/0x100 826>] ? ttwu_do_ activate. constprop. 121+0x66/ 0x70 ef5>] ? try_to_ wake_up+ 0x215/0x2a0 fb0>] ? wake_up_ state+0x10/ 0x20 e86>] ? wake_futex+ 0x76/0xb0 192>] ? futex_wake+ 0x72/0x140 675>] ? __fget_ light+0x25/ 0x70 9b9>] __sys_sendmsg+ 0x49/0x90 a19>] SyS_sendmsg+ 0x19/0x20 272>] system_ call_fastpath+ 0x16/0x75 476>] find_get_ entries+ 0x66/0x160
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261923] IP: [<ffffffff8118e
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261941] PGD 1035954067 PUD 0
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261955] Oops: 0000 [#1] SMP
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.261969] Modules linked in: xfs libcrc32c ipmi_ssif intel_rapl iosf_mbi x86_pkg_
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262182] CPU: 10 PID: 8711 Comm: ceph-osd Not tainted 4.1.0-040100-
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262197] Hardware name: Supermicro X9DRD-7LN4F(
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262215] task: ffff8800721f1420 ti: ffff880fbad54000 task.ti: ffff880fbad54000
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262229] RIP: 0010:[<
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262248] RSP: 0018:ffff880fba
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262258] RAX: ffff880004000158 RBX: 000000000000000e RCX: 0000000000000000
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262303] RDX: ffff880004000158 RSI: ffff880fbad571c0 RDI: 0000001900000000
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262347] RBP: ffff880fbad57208 R08: 00000000000000c0 R09: 00000000000000ff
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262391] R10: 0000000000000000 R11: 0000000000000220 R12: 00000000000000b6
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262435] R13: ffff880fbad57268 R14: 000000000000000a R15: ffff880fbad572d8
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262479] FS: 00007f98cb0e070
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262524] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262551] CR2: 000000190000001c CR3: 0000001034f0e000 CR4: 00000000000407e0
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262596] Stack:
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262618] ffff880fbad571f8 ffff880cf6076b30 ffff880bdde05da8 00000000000000e6
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262669] 0000000000000100 ffff880cf6076b28 00000000000000b5 ffff880fbad57258
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262721] ffff880fbad57258 ffff880fbad572d8 ffffffffffffffff ffff880cf6076b28
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262772] Call Trace:
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262801] [<ffffffff8119b
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262831] [<ffffffff8119b
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262862] [<ffffffff8119c
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262891] [<ffffffff8119c
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262949] [<ffffffffc0431
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.262981] [<ffffffff81220
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263009] [<ffffffff81220
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263037] [<ffffffff81221
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263067] [<ffffffff81208
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263096] [<ffffffff8119d
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263126] [<ffffffff811a2
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263157] [<ffffffff811b4
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263188] [<ffffffff8119d
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263217] [<ffffffff811a2
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263246] [<ffffffff811b4
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263275] [<ffffffff811a2
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263304] [<ffffffff811b5
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263336] [<ffffffff810f1
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263365] [<ffffffff811a2
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263396] [<ffffffff811a3
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263427] [<ffffffff81195
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263460] [<ffffffff811dc
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263492] [<ffffffff811e4
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263522] [<ffffffff811e5
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263553] [<ffffffff817f8
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263584] [<ffffffff816d7
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263614] [<ffffffff816d7
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263643] [<ffffffff811e9
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263675] [<ffffffff816d7
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263704] [<ffffffff816d7
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263734] [<ffffffff816d7
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263766] [<ffffffff81737
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263796] [<ffffffff81738
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263827] [<ffffffff81764
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263858] [<ffffffff816ce
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263891] [<ffffffff816cd
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263920] [<ffffffff816ce
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263950] [<ffffffff810a8
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.263979] [<ffffffff810a8
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264011] [<ffffffff810ab
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264040] [<ffffffff810ab
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264071] [<ffffffff810fc
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264099] [<ffffffff810fe
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264127] [<ffffffff81222
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264155] [<ffffffff816cf
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264184] [<ffffffff816cf
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264215] [<ffffffff8180d
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264243] Code: 00 4c 89 65 c0 31 d2 e9 86 00 00 00 66 0f 1f 84 00 00 00 00 00 48 8b 3a 48 85 ff 0f 84 ad 00 00 00 40 f6 c7 03 0f 85 a9 00 00 00 <8b> 4f 1c 85 c9 74 e3 8d 71 01 4c 8d 47 1c 89 c8 f0 0f b1 77 1c
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264467] RIP [<ffffffff8118e
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264499] RSP <ffff880fbad571a8>
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264522] CR2: 000000190000001c
Jul 3 03:42:06 roc-4r-sca020 kernel: [554036.264824] ---[ end trace ae271fe24c8d817e ]---