Just a note, I have the same problem with Intel® Wireless-AC 3168
(firmware version 29.541020.0 op_mode iwlmvm) on Gentoo
linux-4.14.8-gentoo-r1 in AP mode (802.11n).
Sometimes kernel only shows warnings from
drivers/net/wireless/intel/iwlwifi/mvm/tx.c:1363:
-----
case TX_STATUS_FAIL_DEST_PS:
/* the FW should have stopped the queue and not
* return this status
*/
WARN_ON(1);
info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
break;
-----
2018-01-03T21:16:51+01:00 [warning] kernel: ------------[ cut here ]------------
2018-01-03T21:16:51+01:00 [warning] kernel: WARNING: CPU: 2 PID: 81 at
drivers/net/wireless/intel/iwlwifi/mvm/tx.c:1363 iwl_mvm_rx_tx_cmd+0x361/0x610
2018-01-03T21:16:51+01:00 [warning] kernel: Modules linked in: rtl8812au(O)
2018-01-03T21:16:51+01:00 [warning] kernel: CPU: 2 PID: 81 Comm:
irq/123-iwlwifi Tainted: G W O 4.14.8-gentoo-r1 #1
2018-01-03T21:16:51+01:00 [warning] kernel: Hardware name:
/NUC6CAYB, BIOS AYAPLCEL.86A.0041.2017.0825.1152 08/25/2017
2018-01-03T21:16:51+01:00 [warning] kernel: task: ffff9ea3f4730000 task.stack:
ffffb50340270000
2018-01-03T21:16:51+01:00 [warning] kernel: RIP:
0010:iwl_mvm_rx_tx_cmd+0x361/0x610
2018-01-03T21:16:51+01:00 [warning] kernel: RSP: 0018:ffffb50340273cb8 EFLAGS:
00010246
2018-01-03T21:16:51+01:00 [warning] kernel: RAX: 0000000000000088 RBX:
ffff9ea3d6107700 RCX: 0000000000031040
2018-01-03T21:16:51+01:00 [warning] kernel: RDX: 000000000003103f RSI:
ffff9ea3ffd20dc0 RDI: ffff9ea3f45ed200
2018-01-03T21:16:51+01:00 [warning] kernel: RBP: ffffb50340273d38 R08:
0000000000020dc0 R09: ffffffffb74e5b5d
2018-01-03T21:16:51+01:00 [warning] kernel: R10: ffff9ea3d6107730 R11:
ffffffffb737b110 R12: ffff9ea3f40f9388
2018-01-03T21:16:51+01:00 [warning] kernel: R13: 000000000000d000 R14:
ffff9ea3d6107700 R15: ffff9ea3e1e93000
2018-01-03T21:16:51+01:00 [warning] kernel: FS: 0000000000000000(0000)
GS:ffff9ea3ffd00000(0000) knlGS:0000000000000000
2018-01-03T21:16:51+01:00 [warning] kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
2018-01-03T21:16:51+01:00 [warning] kernel: CR2: 00007ed717e8eee0 CR3:
000000023fe09000 CR4: 00000000003406e0
2018-01-03T21:16:51+01:00 [warning] kernel: Call Trace:
2018-01-03T21:16:51+01:00 [warning] kernel: iwl_mvm_rx_common+0x181/0x2b0
2018-01-03T21:16:51+01:00 [warning] kernel: iwl_mvm_rx+0x6b/0x80
2018-01-03T21:16:51+01:00 [warning] kernel: iwl_pcie_rx_handle+0x2ee/0x860
2018-01-03T21:16:51+01:00 [warning] kernel: iwl_pcie_irq_handler+0x18d/0x6c0
2018-01-03T21:16:51+01:00 [warning] kernel: ? irq_forced_thread_fn+0x80/0x80
2018-01-03T21:16:51+01:00 [warning] kernel: irq_thread_fn+0x2a/0x60
2018-01-03T21:16:51+01:00 [warning] kernel: irq_thread+0x149/0x1b0
2018-01-03T21:16:51+01:00 [warning] kernel: ? __schedule+0x1c6/0x4f0
2018-01-03T21:16:51+01:00 [warning] kernel: ? wake_threads_waitq+0x40/0x40
2018-01-03T21:16:51+01:00 [warning] kernel: kthread+0x106/0x140
2018-01-03T21:16:51+01:00 [warning] kernel: ? irq_thread_dtor+0xb0/0xb0
2018-01-03T21:16:51+01:00 [warning] kernel: ? kthread_create_on_node+0x70/0x70
2018-01-03T21:16:51+01:00 [warning] kernel: ret_from_fork+0x22/0x30
2018-01-03T21:16:51+01:00 [warning] kernel: Code: 00 49 c7 42 20 00 00 00 00 0f
84 b6 fe ff ff 0f 87 98 fe ff ff 66 83 7d b2 01 77 08 41 81 4e 28 00 02 00 00
31 db e9 9f fe ff ff <0f> ff 31 db 41 81 4e 28 00 01 00 00 e9 8e fe ff ff 49 8b
86 c8
2018-01-03T21:16:51+01:00 [warning] kernel: ---[ end trace 0b4f679a324845ac ]---
And here is the crash itself:
-----
2018-01-04T18:03:16+01:00 [alert] kernel: BUG: unable to handle kernel NULL
pointer dereference at 0000000000000070
2018-01-04T18:03:16+01:00 [alert] kernel: IP:
iwl_trans_pcie_txq_enable+0x6b/0x410
2018-01-04T18:03:16+01:00 [info] kernel: PGD 0 P4D 0
2018-01-04T18:03:16+01:00 [warning] kernel: Oops: 0002 [#1] SMP
2018-01-04T18:03:16+01:00 [warning] kernel: Modules linked in: rtl8812au(O)
2018-01-04T18:03:16+01:00 [warning] kernel: CPU: 1 PID: 30588 Comm: kworker/1:2
Tainted: G W O 4.14.8-gentoo-r1 #1
2018-01-04T18:03:16+01:00 [warning] kernel: Hardware name:
/NUC6CAYB, BIOS AYAPLCEL.86A.0041.2017.0825.1152 08/25/2017
2018-01-04T18:03:16+01:00 [warning] kernel: Workqueue: events
iwl_mvm_add_new_dqa_stream_wk
2018-01-04T18:03:16+01:00 [warning] kernel: task: ffff9ea3f5b08000 task.stack:
ffffb50340894000
2018-01-04T18:03:16+01:00 [warning] kernel: RIP:
0010:iwl_trans_pcie_txq_enable+0x6b/0x410
2018-01-04T18:03:16+01:00 [warning] kernel: RSP: 0018:ffffb50340897bf8 EFLAGS:
00010246
2018-01-04T18:03:16+01:00 [warning] kernel: RAX: 00000000000003e8 RBX:
000000000000001f RCX: 0000000000000000
2018-01-04T18:03:16+01:00 [warning] kernel: RDX: 0000000000000fa3 RSI:
000000000000001f RDI: 0000000000002710
2018-01-04T18:03:16+01:00 [warning] kernel: RBP: ffffb50340897c60 R08:
0000000000002710 R09: 0000000000000001
2018-01-04T18:03:16+01:00 [warning] kernel: R10: 0000000000000000 R11:
ffff9ea3f40f9e30 R12: 0000000000000000
2018-01-04T18:03:16+01:00 [warning] kernel: R13: 0000000000000000 R14:
0000000000000000 R15: ffff9ea3f47b0018
2018-01-04T18:03:16+01:00 [warning] kernel: FS: 0000000000000000(0000)
GS:ffff9ea3ffc80000(0000) knlGS:0000000000000000
2018-01-04T18:03:16+01:00 [warning] kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
2018-01-04T18:03:16+01:00 [warning] kernel: CR2: 0000000000000070 CR3:
000000023fe09000 CR4: 00000000003406e0
2018-01-04T18:03:16+01:00 [warning] kernel: Call Trace:
2018-01-04T18:03:16+01:00 [warning] kernel: iwl_mvm_enable_txq+0x1eb/0x350
2018-01-04T18:03:16+01:00 [warning] kernel:
iwl_mvm_add_new_dqa_stream_wk+0xa89/0x15d0
2018-01-04T18:03:16+01:00 [warning] kernel: ?
iwl_mvm_add_new_dqa_stream_wk+0xa89/0x15d0
2018-01-04T18:03:16+01:00 [warning] kernel: ? pick_next_task_fair+0x1e9/0x5b0
2018-01-04T18:03:16+01:00 [warning] kernel: process_one_work+0x164/0x330
2018-01-04T18:03:16+01:00 [warning] kernel: worker_thread+0x5b/0x3b0
2018-01-04T18:03:16+01:00 [warning] kernel: kthread+0x106/0x140
2018-01-04T18:03:16+01:00 [warning] kernel: ? process_one_work+0x330/0x330
2018-01-04T18:03:16+01:00 [warning] kernel: ? kthread_create_on_node+0x70/0x70
2018-01-04T18:03:16+01:00 [warning] kernel: ret_from_fork+0x22/0x30
2018-01-04T18:03:16+01:00 [warning] kernel: Code: c7 48 7d 00 00 f0 48 0f ab 87
48 8d 00 00 73 0d 80 3d 62 9e 9a 00 00 0f 84 ea 02 00 00 44 89 c7 89 55 b0 e8
f8 1b bd ff 4d 85 ed <49> 89 46 70 8b 55 b0 0f 84 07 03 00 00 41 0f b6 87 2a 8e
00 00
2018-01-04T18:03:16+01:00 [alert] kernel: RIP:
iwl_trans_pcie_txq_enable+0x6b/0x410 RSP: ffffb50340897bf8
2018-01-04T18:03:16+01:00 [warning] kernel: CR2: 0000000000000070
2018-01-04T18:03:16+01:00 [warning] kernel: ---[ end trace 0b4f679a324845ad ]---
-----
--
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https://bugs.launchpad.net/bugs/1733194
Title:
kernel NULL pointer dereference in iwlmvm iwl_mvm_enable_txq
Status in linux package in Ubuntu:
Confirmed
Bug description:
When in AP mode after some time, get this BUG:
Nov 18 23:21:31 bifrost kernel: [18345.860393] BUG: unable to handle kernel
NULL pointer dereference at 0000000000000070
Nov 18 23:21:31 bifrost kernel: [18345.860552] IP:
iwl_trans_pcie_txq_enable+0x62/0x440 [iwlwifi]
Nov 18 23:21:31 bifrost kernel: [18345.860644] PGD 0
Nov 18 23:21:31 bifrost kernel: [18345.860646] P4D 0
Nov 18 23:21:31 bifrost kernel: [18345.860682]
Nov 18 23:21:31 bifrost kernel: [18345.860747] Oops: 0002 [#1] SMP
Nov 18 23:21:31 bifrost kernel: [18345.860800] Modules linked in:
nfnetlink_queue nfnetlink_log nfnetlink dummy ufs qnx4 hfsplus hfs minix ntfs
msdos jfs xfs ccm xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4
af_key xfrm_algo xt_policy xt_multiport ip6table_filter ip6_tables
ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat ipt_REJECT
nf_reject_ipv4 xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack
nf_conntrack iptable_filter nls_iso8859_1 cmdlinepart intel_spi_platform
intel_spi spi_nor mtd arc4 intel_rapl intel_soc_dts_thermal intel_soc_dts_iosf
intel_powerclamp coretemp kvm_intel bridge kvm stp llc iwlmvm irqbypass
punit_atom_debug mac80211 intel_cstate snd_hda_codec_hdmi iwlwifi
snd_hda_codec_realtek snd_hda_codec_generic cfg80211 btusb snd_hda_intel
lpc_ich btrtl snd_hda_codec snd_intel_sst_acpi
Nov 18 23:21:31 bifrost kernel: [18345.861897] mei_txe snd_hda_core mei
snd_hwdep shpchp snd_intel_sst_core snd_soc_sst_atom_hifi2_platform hci_uart
snd_soc_sst_match snd_soc_core btbcm serdev snd_compress btqca ac97_bus btintel
snd_pcm_dmaengine snd_pcm dw_dmac dw_dmac_core snd_timer bluetooth snd
soundcore mac_hid intel_int0002_vgpio ecdh_generic spi_pxa2xx_platform
rfkill_gpio pwm_lpss_platform pwm_lpss 8250_dw ib_iser rdma_cm iw_cm ib_cm
ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables
autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear i915
drm_kms_helper crct10dif_pclmul igb syscopyarea sysfillrect crc32_pclmul
sysimgblt fb_sys_fops dca ghash_clmulni_intel i2c_algo_bit cryptd ahci ptp drm
pps_core libahci video
Nov 18 23:21:31 bifrost kernel: [18345.862995] i2c_hid hid sdhci_acpi sdhci
Nov 18 23:21:31 bifrost kernel: [18345.863068] CPU: 1 PID: 1202 Comm:
kworker/1:2 Tainted: G W 4.13.0-16-generic #19-Ubuntu
Nov 18 23:21:31 bifrost kernel: [18345.863203] Hardware name: NF541
NF541/NF541, BIOS BAR1NA02 02/25/2016
Nov 18 23:21:31 bifrost kernel: [18345.863326] Workqueue: events
iwl_mvm_add_new_dqa_stream_wk [iwlmvm]
Nov 18 23:21:31 bifrost kernel: [18345.863428] task: ffff96862c1c5800
task.stack: ffffa98a817c0000
Nov 18 23:21:31 bifrost kernel: [18345.863539] RIP:
0010:iwl_trans_pcie_txq_enable+0x62/0x440 [iwlwifi]
Nov 18 23:21:31 bifrost kernel: [18345.863635] RSP: 0018:ffffa98a817c3be0
EFLAGS: 00010246
Nov 18 23:21:31 bifrost kernel: [18345.863718] RAX: 00000000000009c4 RBX:
000000000000001f RCX: 0000000000000000
Nov 18 23:21:31 bifrost kernel: [18345.863824] RDX: 0000000000000000 RSI:
000000000000001f RDI: 0000000000002710
Nov 18 23:21:31 bifrost kernel: [18345.863932] RBP: ffffa98a817c3c30 R08:
0000000000002710 R09: 0000000000000001
Nov 18 23:21:31 bifrost kernel: [18345.864039] R10: 0000000000000000 R11:
ffff9686344ce010 R12: 0000000000000000
Nov 18 23:21:31 bifrost kernel: [18345.864145] R13: ffff96862c9d0018 R14:
0000000000000000 R15: 0000000000000000
Nov 18 23:21:31 bifrost kernel: [18345.864253] FS: 0000000000000000(0000)
GS:ffff96863fc80000(0000) knlGS:0000000000000000
Nov 18 23:21:31 bifrost kernel: [18345.864373] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Nov 18 23:21:31 bifrost kernel: [18345.864461] CR2: 0000000000000070 CR3:
000000023068b000 CR4: 00000000001006e0
Nov 18 23:21:31 bifrost kernel: [18345.864568] Call Trace:
Nov 18 23:21:31 bifrost kernel: [18345.864633]
iwl_mvm_enable_txq+0x212/0x3a0 [iwlmvm]
Nov 18 23:21:31 bifrost kernel: [18345.864732]
iwl_mvm_add_new_dqa_stream_wk+0x7e8/0x15e0 [iwlmvm]
Nov 18 23:21:31 bifrost kernel: [18345.864843] ?
iwl_mvm_add_new_dqa_stream_wk+0x7e8/0x15e0 [iwlmvm]
Nov 18 23:21:31 bifrost kernel: [18345.864945] ? __switch_to+0x211/0x520
Nov 18 23:21:31 bifrost kernel: [18345.865008] ? put_prev_entity+0x23/0xf0
Nov 18 23:21:31 bifrost kernel: [18345.865075] process_one_work+0x1e7/0x410
Nov 18 23:21:31 bifrost kernel: [18345.865143] worker_thread+0x4a/0x410
Nov 18 23:21:31 bifrost kernel: [18345.865204] kthread+0x125/0x140
Nov 18 23:21:31 bifrost kernel: [18345.865260] ? process_one_work+0x410/0x410
Nov 18 23:21:31 bifrost kernel: [18345.869337] ?
kthread_create_on_node+0x70/0x70
Nov 18 23:21:31 bifrost kernel: [18345.873431] ret_from_fork+0x25/0x30
Nov 18 23:21:31 bifrost kernel: [18345.877527] Code: 4c 8b b4 c7 08 7e 00 00
f0 48 0f ab 87 08 8e 00 00 73 0d 80 3d d6 3b 02 00 00 0f 84 a1 03 00 00 44 89
c7 e8 21 2f 6b dc 4d 85 e4 <49> 89 46 70 0f 84 d9 02 00 00 41 0f b6 04 24 89 45
b8 41 0f b6
Nov 18 23:21:31 bifrost kernel: [18345.886085] RIP:
iwl_trans_pcie_txq_enable+0x62/0x440 [iwlwifi] RSP: ffffa98a817c3be0
Nov 18 23:21:31 bifrost kernel: [18345.890363] CR2: 0000000000000070
Nov 18 23:21:31 bifrost kernel: [18345.894670] ---[ end trace
128827eedfd09435 ]---
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k4.13.0-16-generic.
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.7-0ubuntu3.4
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/hwC0D2', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D1p',
'/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info: Error: [Errno 2] No such file or directory
Card0.Amixer.values: Error: [Errno 2] No such file or directory
DistroRelease: Ubuntu 17.10
HibernationDevice: RESUME=/dev/mapper/bifrost--vg-swap_1
InstallationDate: Installed on 2017-02-18 (274 days ago)
InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64
(20170215.8)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 002: ID 8087:07dc Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: NF541 NF541
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic.efi.signed
root=/dev/mapper/hostname--vg-root ro
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
RelatedPackageVersions:
linux-restricted-modules-4.13.0-16-generic N/A
linux-backports-modules-4.13.0-16-generic N/A
linux-firmware 1.169
RfKill: Error: [Errno 2] No such file or directory
Tags: artful
Uname: Linux 4.13.0-16-generic x86_64
UnreportableReason: The report belongs to a package that is not installed.
UpgradeStatus: Upgraded to artful on 2017-11-18 (0 days ago)
UserGroups:
_MarkForUpload: False
dmi.bios.date: 02/25/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: BAR1NA02
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: NF541
dmi.board.vendor: NF541
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.chassis.vendor: NF541
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrBAR1NA02:bd02/25/2016:svnNF541:pnNF541:pvr1.0:rvnNF541:rnNF541:rvr1.0:cvnNF541:ct3:cvr1.0:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: NF541
dmi.product.version: 1.0
dmi.sys.vendor: NF541
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