Public bug reported:
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
]---
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1733194
Title:
kernel NULL pointer dereference in iwlmvm iwl_mvm_enable_txq
Status in linux-meta package in Ubuntu:
New
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 ]---
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