kernel panic: BUG: unable to handle kernel NULL pointer dereference at 0000000000000070

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nart88
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Joined: November 4th, 2018, 4:55 am

kernel panic: BUG: unable to handle kernel NULL pointer dereference at 0000000000000070

Post by nart88 » November 4th, 2018, 5:34 am

Hardware: Intel CORE i5-4590T @2.6Ghz 4 CPU, 8GB, tested on both IPFire 2.21 (x86_64) - Core Update 123 & 124 - both encountered the same problem.
Tested on wireless card - Intel 7260AC Rev3 (iwlwifi) [8086:08b2] - kernel panic'd with below message, and locked up
Tested on wireless card - Intel 8260AC Rev3a (iwlwifi) [8086:24f3] - kernel panic'd with same below message, and locked up
BIOS date: 8/21/2018

any work around or ideas? Thanks!
==========================================================================
kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
kernel: IP: iwl_trans_pcie_txq_enable+0x5e/0x410 [iwlwifi]
kernel: PGD 0 P4D 0
kernel: Oops: 0002 [#1] SMP PTI
kernel: Modules linked in: nct6775 hwmon_vid xt_REDIRECT nf_nat_redirect nfnetlink_queue nfnetlink_log ipt_MASQUERADE nf_nat_masquerade_ipv4 ccm xt_geoip(O) xt_ipp2p(O) compat_xtables(O) xt_time xt_connlimit xt_multiport xt_mac xt_mark xt_policy xt_TCPMSS nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp nf_nat_h323 nf_conntrack_h323 xt_CT xt_helper nf_nat_sip nf_conntrack_sip xt_conntrack xt_comment ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit iptable_raw iptable_mangle iptable_filter btusb btrtl btbcm btintel bluetooth ecdh_generic arc4 iwlmvm sch_fq_codel mac80211 snd_hda_codec_hdmi x86_pkg_temp_thermal iwlwifi intel_powerclamp coretemp snd_hda_codec_realtek kvm_intel iTCO_wdt snd_hda_codec_generic cfg80211 iTCO_vendor_support wmi_bmof kvm irqbypass i2c_algo_bit
kernel: crct10dif_pclmul fb_sys_fops syscopyarea sysfillrect sysimgblt crc32_pclmul snd_hda_intel i2c_i801 ghash_clmulni_intel pcspkr i2c_core r8169 snd_hda_codec mii snd_hda_core snd_hwdep rfkill snd_pcm lpc_ich snd_timer mfd_core snd soundcore pcc_cpufreq wmi lp parport_pc parport video
kernel: CPU: 3 PID: 44 Comm: kworker/3:1 Tainted: G O 4.14.72-ipfire #1
kernel: Hardware name: LENOVO 3264AL3/MAHOBAY, BIOS F4KT61AUS 07/16/2018
kernel: Workqueue: events iwl_mvm_add_new_dqa_stream_wk [iwlmvm]
kernel: task: ffff916b5abb2940 task.stack: ffffa48340190000
kernel: RIP: 0010:iwl_trans_pcie_txq_enable+0x5e/0x410 [iwlwifi]
kernel: RSP: 0018:ffffa48340193c30 EFLAGS: 00010246
kernel: RAX: 0000000000000bb8 RBX: 000000000000001f RCX: 0000000000000000
kernel: RDX: 0000000000000000 RSI: 000000000000001f RDI: 0000177000000fa0
kernel: RBP: 0000000000000000 R08: 0000000000002710 R09: 0000000000000001
kernel: R10: 000000000000000d R11: ffff916b58419ff0 R12: 0000000000000000
kernel: R13: 0000000000000000 R14: 0000000000000000 R15: ffff916b56e30018
kernel: FS: 0000000000000000(0000) GS:ffff916b5f380000(0000) knlGS:0000000000000000
kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 0000000000000070 CR3: 00000000b300a006 CR4: 00000000000606e0
kernel: Call Trace:
kernel: iwl_mvm_enable_txq+0x1e4/0x340 [iwlmvm]
kernel: ? iwl_mvm_add_new_dqa_stream_wk+0xc4f/0x12f0 [iwlmvm]
kernel: iwl_mvm_add_new_dqa_stream_wk+0xc4f/0x12f0 [iwlmvm]
kernel: ? syscall_return_via_sysret+0x1c/0x7a
kernel: ? __switch_to_asm+0x40/0x70
kernel: ? __switch_to_asm+0x40/0x70
kernel: ? __switch_to_asm+0x34/0x70
kernel: ? __switch_to_asm+0x40/0x70
kernel: process_one_work+0x175/0x370
kernel: worker_thread+0x2e/0x380
kernel: ? process_one_work+0x370/0x370
kernel: kthread+0x11a/0x130
kernel: ? kthread_create_on_node+0x70/0x70
kernel: ret_from_fork+0x35/0x40
kernel: Code: 4c 8b a4 c7 08 7e 00 00 f0 48 0f ab 87 08 8e 00 00 73 0d 80 3d 8e 40 02 00 00 0f 84 29 03 00 00 44 89 c7 e8 85 8f dc fc 4d 85 ed <49> 89 44 24 70 0f 84 92 02 00 00 41 0f b6 87 ea 8e 00 00 39 d8
kernel: RIP: iwl_trans_pcie_txq_enable+0x5e/0x410 [iwlwifi] RSP: ffffa48340193c30
kernel: CR2: 0000000000000070
kernel: ---[ end trace 0f7019b7b2b1b0ab ]---

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