I saw this oops again in the ieee80211 driver again today when the laptop was started at a connecting to a new WiFi in different location (in a fast food restaurant instead of at home or work). I hadn't seen it connecting to Wifi at home for a while. .x86_64 #1 [ 66.632041] Hardware name: LENOVO 20MAS08500/20MAS08500, BIOS N2CET48W (1.31 ) 11/04/2019 [ 66.632047] RIP: 0010:ieee80211_sta_update_pending_airtime+0xed/0x120 [mac80211] [ 66.632048] Code: 8b b2 90 01 00 00 48 85 f6 75 07 48 8b b2 40 01 00 00 41 89 e8 89 c1 44 89 ea 48 c7 c7 58 3d 08 c1 89 44 24 04 e8 e5 6c 0d ef <0f> 0b 8b 44 24 04 eb 9d 48 83 c6 40 41 89 e8 89 c1 48 c7 c7 20 3d [ 66.632049] RSP: 0018:ffffb0ef40c53ba8 EFLAGS: 00010286 [ 66.632049] RAX: 0000000000000000 RBX: 00000000ffffffb0 RCX: 0000000000000000 [ 66.632049] RDX: 000000000000003a RSI: ffffffffb215047a RDI: 0000000000000246 [ 66.632050] RBP: 0000000000000050 R08: 0000000f839398c6 R09: 000000000000003a [ 66.632050] R10: 0000000000000001 R11: 00000000b2150446 R12: ffff9d76f2db87c0 [ 66.632051] R13: 0000000000000002 R14: ffff9d76a2c5a5c8 R15: ffff9d76f0833d00 [ 66.632051] FS: 0000000000000000(0000) GS:ffff9d76fbcc0000(0000) knlGS:0000000000000000 [ 66.632052] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.632052] CR2: 00001cab696ac008 CR3: 000000081492e006 CR4: 00000000003606e0 [ 66.632052] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.632053] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.632053] Call Trace: [ 66.632060] __ieee80211_tx_status+0x720/0x900 [mac80211] [ 66.632066] ieee80211_tx_status+0x6a/0x90 [mac80211] [ 66.632070] iwl_mvm_tx_reclaim+0x2a2/0x3c0 [iwlmvm] [ 66.632074] iwl_mvm_rx_ba_notif+0xff/0x2e0 [iwlmvm] [ 66.632076] ? __switch_to_asm+0x40/0x70 [ 66.632079] iwl_mvm_rx_common+0xdd/0x2c0 [iwlmvm] [ 66.632083] iwl_pcie_rx_handle+0x3af/0x9c0 [iwlwifi] [ 66.632085] ? irq_finalize_oneshot.part.0+0xf0/0xf0 [ 66.632088] iwl_pcie_irq_rx_msix_handler+0x45/0x80 [iwlwifi] [ 66.632089] irq_thread_fn+0x20/0x60 [ 66.632090] irq_thread+0xdc/0x170 [ 66.632091] ? irq_forced_thread_fn+0x80/0x80 [ 66.632092] kthread+0xf9/0x130 [ 66.632093] ? irq_thread_check_affinity+0xf0/0xf0 [ 66.632094] ? kthread_park+0x90/0x90 [ 66.632095] ret_from_fork+0x35/0x40 [ 66.632096] ---[ end trace 9f6b29cb2168e61f ]--- -- Thanks, Steve