[Bug 1733194] Re: kernel NULL pointer dereference in iwlmvm iwl_mvm_enable_txq

** Changed in: linux
Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1733194

Title:
kernel NULL pointer dereference in iwlmvm iwl_mvm_enable_txq

Status in Linux:
Expired
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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