Package: firmware-iwlwifi Version: 20170823-1 Severity: important When I use my laptop as a hotspot, the following appears in the kernel logs:
Jun 12 12:10:08 gepardo-debian kernel: [ 1513.037567] BUG: unable to handle kernel NULL pointer dereference at 0000000000000068 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.037609] IP: iwl_trans_pcie_txq_enable+0x5e/0x410 [iwlwifi] Jun 12 12:10:08 gepardo-debian kernel: [ 1513.037616] PGD 0 P4D 0 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.037630] Oops: 0002 [#1] SMP PTI Jun 12 12:10:08 gepardo-debian kernel: [ 1513.037638] Modules linked in: cpuid ctr ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp iptable_filter nf_nat_h323 nf_conntrack_h323 nf_nat_pptp nf_nat_proto_gre nf_conntrack_pptp nf_conntrack_proto_gre nf_nat_tftp nf_conntrack_tftp nf_nat_sip nf_conntrack_sip nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc nls_ascii nls_cp437 vfat fat arc4 snd_hda_codec_hdmi snd_hda_codec_realtek hp_wmi wmi_bmof snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops intel_rapl videobuf2_v4l2 x86_pkg_temp_thermal intel_powerclamp coretemp btusb btrtl btbcm btintel kvm_intel iwlmvm bluetooth videobuf2_common Jun 12 12:10:08 gepardo-debian kernel: [ 1513.037772] kvm irqbypass videodev crct10dif_pclmul crc32_pclmul media mac80211 drbg ansi_cprng snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_dsp snd_soc_sst_ipc ecdh_generic snd_soc_acpi ghash_clmulni_intel efi_pstore intel_cstate snd_soc_core iwlwifi snd_compress intel_uncore snd_hda_intel intel_rapl_perf i915 snd_hda_codec cfg80211 rfkill joydev evdev snd_hda_core snd_hwdep drm_kms_helper iTCO_wdt pcspkr serio_raw snd_pcm efivars snd_timer drm iTCO_vendor_support intel_pch_thermal snd i2c_algo_bit soundcore shpchp mei_me sg mei processor_thermal_device int340x_thermal_zone intel_soc_dts_iosf wmi intel_vbtn battery sparse_keymap ac kxcjk_1013 industrialio_triggered_buffer kfifo_buf video industrialio acpi_pad int3400_thermal hp_wireless acpi_thermal_rel button parport_pc ppdev lp parport Jun 12 12:10:08 gepardo-debian kernel: [ 1513.037913] efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 fscrypto ecb btrfs crc32c_generic xor zstd_decompress zstd_compress xxhash raid6_pq dm_mod hid_generic usbhid hid sr_mod cdrom sd_mod crc32c_intel aesni_intel aes_x86_64 crypto_simd cryptd glue_helper ahci libahci psmouse r8169 mii xhci_pci libata xhci_hcd i2c_i801 scsi_mod usbcore usb_common fan thermal Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038008] CPU: 3 PID: 51 Comm: kworker/3:1 Tainted: G W O 4.16.0-2-amd64 #1 Debian 4.16.12-1 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038015] Hardware name: HP HP 250 G6 Notebook PC/832A, BIOS F.33 12/08/2017 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038047] Workqueue: events iwl_mvm_add_new_dqa_stream_wk [iwlmvm] Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038074] RIP: 0010:iwl_trans_pcie_txq_enable+0x5e/0x410 [iwlwifi] Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038082] RSP: 0018:ffffaa388106bc50 EFLAGS: 00010246 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038091] RAX: 00000000000009c4 RBX: 000000000000001f RCX: 0000000000000000 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038098] RDX: 0000000000000b91 RSI: 000000000000001f RDI: 0000000000002710 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038106] RBP: 0000000000000b91 R08: 0000000000002710 R09: 0000000000000001 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038113] R10: 0000000000000008 R11: ffff9141e285dfb0 R12: 0000000000000000 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038120] R13: 0000000000000000 R14: 0000000000000b91 R15: ffff9141dfaa0018 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038128] FS: 0000000000000000(0000) GS:ffff9141eed80000(0000) knlGS:0000000000000000 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038137] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038143] CR2: 0000000000000068 CR3: 000000001c00a003 CR4: 00000000003626e0 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038150] Call Trace: Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038185] iwl_mvm_enable_txq +0x1e4/0x350 [iwlmvm] Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038213] ? iwl_mvm_inactivity_check+0x110/0x500 [iwlmvm] Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038240] ? iwl_mvm_add_new_dqa_stream_wk+0xbe5/0x1290 [iwlmvm] Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038263] iwl_mvm_add_new_dqa_stream_wk+0xbe5/0x1290 [iwlmvm] Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038280] ? syscall_return_via_sysret+0x1c/0x7a Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038290] ? __switch_to_asm +0x34/0x70 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038299] ? __switch_to_asm +0x34/0x70 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038310] ? __switch_to +0xa2/0x450 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038319] ? __switch_to_asm +0x40/0x70 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038328] ? __switch_to_asm +0x34/0x70 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038336] ? __switch_to_asm +0x40/0x70 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038351] process_one_work+0x17b/ 0x360 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038364] worker_thread+0x2e/ 0x390 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038376] ? process_one_work +0x360/0x360 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038386] kthread+0x113/0x130 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038397] ? kthread_create_worker_on_cpu+0x70/0x70 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038407] ret_from_fork+0x35/0x40 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038417] Code: 4c 8b a4 c7 e8 7d 00 00 f0 48 0f ab 87 e8 8d 00 00 73 0d 80 3d 66 50 02 00 00 0f 84 29 03 00 00 44 89 c7 e8 a5 b4 04 cf 4d 85 ed <49> 89 44 24 68 0f 84 92 02 00 00 41 0f b6 87 ca 8e 00 00 39 d8 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038569] RIP: iwl_trans_pcie_txq_enable+0x5e/0x410 [iwlwifi] RSP: ffffaa388106bc50 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038574] CR2: 0000000000000068 Jun 12 12:10:08 gepardo-debian kernel: [ 1513.038583] ---[ end trace 1e1ba2d6bb3f2501 ]--- Also, some problems with the system may appear (e. g. some processes cannot be killed, not showing total CPU usage, sudo not working) --- System information. --- Architecture: Kernel: Linux 4.16.0-2-amd64 Debian Release: buster/sid 990 testing ftp.by.debian.org 500 unstable ftp.by.debian.org --- Package information. --- Package's Depends field is empty. Package's Recommends field is empty. Suggests (Version) | Installed ==============================-+-=========== initramfs-tools | 0.130 -- --------------------- Alexander Kernozhitsky
