[ 281.700989] BUG: unable to handle kernel NULL pointer dereference at 0000000c [ 281.709771] IP: [] memcmp+0xc/0x40 [ 281.715336] PGD 654d0067 PUD 654d1067 PMD 0 [ 281.720118] Oops: 0000 [#1] SMP [ 281.723733] Modules linked in: ipt_MASQUERADE nf_nat_masquerade_ipv4 iptablei [ 281.853032] CPU: 1 PID: 119 Comm: kworker/u4:2 Not tainted 4.4.0-80-generic u [ 281.861997] Hardware name: Dell Inc. Edge Gateway 3002/ , BIOS 01.00.017 [ 281.871008] Workqueue: phy0 ieee80211_ba_session_work [mac80211] [ 281.877736] task: ffff880077db9980 ti: ffff880077e7c000 task.ti: ffff880077e0 [ 281.886116] RIP: 0010:[] [] memcmp+0xc/0 [ 281.894409] RSP: 0018:ffff880077e7fc68 EFLAGS: 00010206 [ 281.900353] RAX: 00000000000000ac RBX: 0000000000000004 RCX: 0000000000000000 [ 281.908340] RDX: 0000000000000006 RSI: 000000000000000c RDI: ffff8800580967fc [ 281.916326] RBP: ffff880077e7fc68 R08: 0000000000000020 R09: 0000000000000000 [ 281.924312] R10: 0000000000000056 R11: 0000000000000000 R12: 000000000000000c [ 281.932299] R13: ffff88003c0da000 R14: 0000000000000000 R15: ffff88003c0da9c8 [ 281.940287] FS: 0000000000000000(0000) GS:ffff880071b00000(0000) knlGS:00000 [ 281.949348] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 281.955779] CR2: 000000000000000c CR3: 0000000065a6e000 CR4: 00000000001006e0 [ 281.963765] Stack: [ 281.966013] ffff880077e7fca0 ffffffffc03fd2c5 ffff88003c0d93b0 0000000000000 [ 281.974309] ffff88003c0da000 ffff88003c0da138 0000000058096000 ffff880077e70 [ 281.982613] ffffffffc03fe886 ffff880077e7fd00 ffff880077e7fcf8 0000000000000 [ 281.990908] Call Trace: [ 281.993655] [] rsi_find_sta+0x45/0x90 [ven_rsi_91x] [ 282.000968] [] rsi_mac80211_ampdu_action+0xe6/0x340 [ven_] [ 282.009679] [] drv_ampdu_action+0x6f/0x180 [mac80211] [ 282.017218] [] ieee80211_tx_ba_session_handle_start+0xd4/] [ 282.026673] [] ? dequeue_task_fair+0x515/0x8b0 [ 282.033533] [] ieee80211_ba_session_work+0x7e/0x180 [mac8] [ 282.041917] [] process_one_work+0x165/0x480 [ 282.048448] [] worker_thread+0x4b/0x4c0 [ 282.054710] [] ? process_one_work+0x480/0x480 [ 282.061435] [] kthread+0xe5/0x100 [ 282.066993] [] ? kthread_create_on_node+0x1e0/0x1e0 [ 282.074303] [] ret_from_fork+0x3f/0x70 [ 282.080348] [] ? kthread_create_on_node+0x1e0/0x1e0 [ 282.087653] Code: 16 b8 01 00 00 00 84 d2 74 f2 31 c0 80 fa 0a 75 eb 80 7e 0 [ 282.109116] RIP [] memcmp+0xc/0x40 [ 282.114778] RSP [ 282.118680] CR2: 000000000000000c [ 282.122389] ---[ end trace c9d684c39c4e5039 ]--- [ 282.132333] BUG: unable to handle kernel paging request at ffffffffffffffd8 [ 282.140180] IP: [] kthread_data+0x10/0x20 [ 282.146459] PGD 1e0d067 PUD 1e0f067 PMD 0 [ 282.151086] Oops: 0000 [#2] SMP [ 282.154729] Modules linked in: ipt_MASQUERADE nf_nat_masquerade_ipv4 iptablei [ 282.284548] CPU: 1 PID: 119 Comm: kworker/u4:2 Tainted: G D 4.4u [ 282.294904] Hardware name: Dell Inc. Edge Gateway 3002/ , BIOS 01.00.017 [ 282.303936] task: ffff880077db9980 ti: ffff880077e7c000 task.ti: ffff880077e0 [ 282.312342] RIP: 0010:[] [] kthread_dat0 [ 282.321350] RSP: 0018:ffff880077e7f958 EFLAGS: 00010002 [ 282.327314] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff82108e80 [ 282.335311] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff880077db9980 [ 282.343318] RBP: ffff880077e7f958 R08: 00000000ffffffff R09: 0000000000000000 [ 282.351323] R10: ffff880077db99e0 R11: 0000000000005c00 R12: 0000000000000000 [ 282.359328] R13: 0000000000016dc0 R14: ffff880077db9980 R15: ffff880071b16dc0 [ 282.367336] FS: 0000000000000000(0000) GS:ffff880071b00000(0000) knlGS:00000 [ 282.376424] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 282.382873] CR2: 0000000000000028 CR3: 00000000655b5000 CR4: 00000000001006e0 [ 282.390877] Stack: [ 282.393140] ffff880077e7f970 ffffffff8109b901 ffff880071b16dc0 ffff880077e70 [ 282.401481] ffffffff8183d640 ffff880077d730e0 ffff880000000001 ffff880077db0 [ 282.409823] ffff880077e80000 ffff880077dba050 ffff880077e7f570 0000000000006 [ 282.418163] Call Trace: [ 282.420928] [] wq_worker_sleeping+0x11/0x90 [ 282.427484] [] __schedule+0x650/0xa30 [ 282.433453] [] schedule+0x35/0x80 [ 282.439035] [] do_exit+0x775/0xb00 [ 282.444715] [] oops_end+0xa1/0xd0 [ 282.450296] [] no_context+0x135/0x380 [ 282.456381] [] __bad_area_nosemaphore+0x80/0x1f0 [ 282.463420] [] bad_area_nosemaphore+0x13/0x20 [ 282.470166] [] __do_page_fault+0xb7/0x400 [ 282.476524] [] do_page_fault+0x22/0x30 [ 282.482589] [] page_fault+0x28/0x30 [ 282.488576] [] ? memcmp+0xc/0x40 [ 282.494060] [] ? wake_up_q+0x70/0x70 [ 282.499949] [] rsi_find_sta+0x45/0x90 [ven_rsi_91x] [ 282.507293] [] rsi_mac80211_ampdu_action+0xe6/0x340 [ven_] [ 282.516096] [] drv_ampdu_action+0x6f/0x180 [mac80211] [ 282.523714] [] ieee80211_tx_ba_session_handle_start+0xd4/] [ 282.533197] [] ? dequeue_task_fair+0x515/0x8b0 [ 282.540134] [] ieee80211_ba_session_work+0x7e/0x180 [mac8] [ 282.548548] [] process_one_work+0x165/0x480 [ 282.555101] [] worker_thread+0x4b/0x4c0 [ 282.561265] [] ? process_one_work+0x480/0x480 [ 282.568012] [] kthread+0xe5/0x100 [ 282.573591] [] ? kthread_create_on_node+0x1e0/0x1e0 [ 282.580924] [] ret_from_fork+0x3f/0x70 [ 282.586990] [] ? kthread_create_on_node+0x1e0/0x1e0 [ 282.594315] Code: ff ff ff be 49 02 00 00 48 c7 c7 c8 b7 cb 81 e8 97 01 fe f [ 282.616066] RIP [] kthread_data+0x10/0x20 [ 282.622431] RSP [ 282.626348] CR2: ffffffffffffffd8 [ 282.630075] ---[ end trace c9d684c39c4e503a ]--- [ 282.635259] Fixing recursive fault but reboot is needed! 7w�tus Code Available DXE Status Code Available