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Bug#901389: marked as done ([firmware-iwlwifi] Crash when using as a hotspot with intense usage)

Your message dated Sat, 26 Nov 2022 20:48:21 +0100 (CET)
with message-id <20221126194821.85F54BE2DE0@eldamar.lan>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #901389,
regarding [firmware-iwlwifi] Crash when using as a hotspot with intense usage
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
901389: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901389
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
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

--- End Message ---
--- Begin Message --- 
Hi

This bug was filed for a very old kernel or the bug is old itself
without resolution.

If you can reproduce it with

- the current version in unstable/testing
- the latest kernel from backports

please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.

Regards,
Salvatore

--- End Message ---
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