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Date: Tue, 10 Dec 2019 13:46:22 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Johannes Berg <johannes.berg@...el.com>,
Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
Luca Coelho <luciano.coelho@...el.com>
Cc: "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
Networking <netdev@...r.kernel.org>
Subject: iwlwifi warnings in 5.5-rc1
Hi,
Since the GRO issue got fixed, iwlwifi has worked fine for me.
However, on every boot, I get some warnings:
------------[ cut here ]------------
STA b4:75:0e:99:1f:e0 AC 2 txq pending airtime underflow: 4294967088, 208
WARNING: CPU: 0 PID: 606 at net/mac80211/sta_info.c:1931 ieee80211_sta_update_pending_airtime+0x11c/0x130 [mac80211]
Modules linked in: rfcomm ccm cmac msr bnep iwlmvm joydev x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mac80211 kvm binfmt_misc irqbypass nls_iso8859_1 snd_soc_skl libarc4 iwlwifi snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_hdmi snd_soc_acpi_intel_match hid_multitouch snd_soc_acpi snd_soc_sst_ipc snd_soc_sst_dsp wmi_bmof intel_wmi_thunderbolt snd_soc_core uvcvideo btusb snd_hda_codec_realtek crct10dif_pclmul btrtl crc32_pclmul ghash_clmulni_intel btbcm snd_hda_codec_generic btintel bluetooth videobuf2_vmalloc aesni_intel cfg80211 videobuf2_memops glue_helper videobuf2_v4l2 crypto_simd videobuf2_common cryptd intel_cstate videodev snd_hda_intel intel_rapl_perf snd_intel_dspcfg snd_hda_codec serio_raw input_leds snd_hwdep mc snd_hda_core mei_me ecdh_generic ecc snd_pcm mei snd_seq thinkpad_acpi intel_lpss_pci nvram processor_thermal_device ledtrig_audio ucsi_acpi intel_lpss intel_soc_dts_iosf typec_ucsi snd_timer idma64 intel_rapl_common virt_dma snd_seq_device
typec intel_pch_thermal snd wmi int3403_thermal soundcore int340x_thermal_zone int3400_thermal acpi_pad acpi_thermal_rel sch_fq_codel ip_tables x_tables hid_generic usbhid i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm e1000e nvme i2c_hid ptp nvme_core hid pps_core video
CPU: 0 PID: 606 Comm: irq/139-iwlwifi Tainted: G U 5.5.0-rc1+ #4143
Hardware name: LENOVO 20QD001XUS/20QD001XUS, BIOS N2HET42W (1.25 ) 11/26/2019
RIP: 0010:ieee80211_sta_update_pending_airtime+0x11c/0x130 [mac80211]
Code: 99 a6 96 c4 0f 0b 8b 45 d4 eb a1 48 83 c6 40 45 89 e0 89 c1 89 45 d4 48 c7 c7 88 ec f7 c0 c6 05 6a af 09 00 01 e8 73 a6 96 c4 <0f> 0b 8b 45 d4 eb 91 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
RSP: 0018:ffffa6cfc092fb30 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000ffffff30 RCX: 0000000000000000
RDX: 0000000000000049 RSI: ffffffff86d89729 RDI: ffffffff86d872ac
RBP: ffffa6cfc092fb60 R08: ffffffff86d896e0 R09: 0000000000000049
R10: abcc77118461cefd R11: ffffffff86d89729 R12: 00000000000000d0
R13: ffff8afb89fd07c0 R14: 0000000000000002 R15: ffff8afb8fcc05c8
FS: 0000000000000000(0000) GS:ffff8afbae400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f355c35aea0 CR3: 000000042c609005 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__ieee80211_tx_status+0x69b/0x8c0 [mac80211]
? sta_info_get_by_addrs+0x12e/0x1e0 [mac80211]
ieee80211_tx_status+0x75/0xa0 [mac80211]
iwl_mvm_tx_reclaim+0x2b5/0x3d0 [iwlmvm]
iwl_mvm_rx_ba_notif+0x285/0x330 [iwlmvm]
iwl_mvm_rx_common+0xde/0x2a0 [iwlmvm]
iwl_mvm_rx_mq+0x71/0xb0 [iwlmvm]
iwl_pcie_rx_handle+0x3b5/0xa70 [iwlwifi]
? irq_forced_thread_fn+0x80/0x80
iwl_pcie_irq_rx_msix_handler+0x58/0x120 [iwlwifi]
irq_thread_fn+0x23/0x60
irq_thread+0xd8/0x170
? wake_threads_waitq+0x30/0x30
kthread+0x103/0x140
? irq_thread_dtor+0xa0/0xa0
? kthread_park+0x90/0x90
ret_from_fork+0x1f/0x30
---[ end trace 0c7c7c0cf1fc73ce ]---
------------[ cut here ]------------
Device phy0 AC 2 pending airtime underflow: 4294967088, 208
WARNING: CPU: 0 PID: 606 at net/mac80211/sta_info.c:1940 ieee80211_sta_update_pending_airtime+0xf6/0x130 [mac80211]
Modules linked in: rfcomm ccm cmac msr bnep iwlmvm joydev x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mac80211 kvm binfmt_misc irqbypass nls_iso8859_1 snd_soc_skl libarc4 iwlwifi snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_hdmi snd_soc_acpi_intel_match hid_multitouch snd_soc_acpi snd_soc_sst_ipc snd_soc_sst_dsp wmi_bmof intel_wmi_thunderbolt snd_soc_core uvcvideo btusb snd_hda_codec_realtek crct10dif_pclmul btrtl crc32_pclmul ghash_clmulni_intel btbcm snd_hda_codec_generic btintel bluetooth videobuf2_vmalloc aesni_intel cfg80211 videobuf2_memops glue_helper videobuf2_v4l2 crypto_simd videobuf2_common cryptd intel_cstate videodev snd_hda_intel intel_rapl_perf snd_intel_dspcfg snd_hda_codec serio_raw input_leds snd_hwdep mc snd_hda_core mei_me ecdh_generic ecc snd_pcm mei snd_seq thinkpad_acpi intel_lpss_pci nvram processor_thermal_device ledtrig_audio ucsi_acpi intel_lpss intel_soc_dts_iosf typec_ucsi snd_timer idma64 intel_rapl_common virt_dma snd_seq_device
typec intel_pch_thermal snd wmi int3403_thermal soundcore int340x_thermal_zone int3400_thermal acpi_pad acpi_thermal_rel sch_fq_codel ip_tables x_tables hid_generic usbhid i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm e1000e nvme i2c_hid ptp nvme_core hid pps_core video
CPU: 0 PID: 606 Comm: irq/139-iwlwifi Tainted: G U W 5.5.0-rc1+ #4143
Hardware name: LENOVO 20QD001XUS/20QD001XUS, BIOS N2HET42W (1.25 ) 11/26/2019
RIP: 0010:ieee80211_sta_update_pending_airtime+0xf6/0x130 [mac80211]
Code: 48 8b b2 90 01 00 00 48 85 f6 75 07 48 8b b2 40 01 00 00 45 89 e0 89 c1 44 89 f2 89 45 d4 48 c7 c7 c0 ec f7 c0 e8 99 a6 96 c4 <0f> 0b 8b 45 d4 eb a1 48 83 c6 40 45 89 e0 89 c1 89 45 d4 48 c7 c7
RSP: 0018:ffffa6cfc092fb30 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000ffffff30 RCX: 0000000000000000
RDX: 000000000000003b RSI: ffffffff86d8971b RDI: ffffffff86d872ac
RBP: ffffa6cfc092fb60 R08: ffffffff86d896e0 R09: 000000000000003b
R10: abcc77118461cefd R11: ffffffff86d8971b R12: 00000000000000d0
R13: ffff8afb89fd07c0 R14: 0000000000000002 R15: ffff8afb8fcc05c8
FS: 0000000000000000(0000) GS:ffff8afbae400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f355c35aea0 CR3: 000000042c609005 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__ieee80211_tx_status+0x69b/0x8c0 [mac80211]
? sta_info_get_by_addrs+0x12e/0x1e0 [mac80211]
ieee80211_tx_status+0x75/0xa0 [mac80211]
iwl_mvm_tx_reclaim+0x2b5/0x3d0 [iwlmvm]
iwl_mvm_rx_ba_notif+0x285/0x330 [iwlmvm]
iwl_mvm_rx_common+0xde/0x2a0 [iwlmvm]
iwl_mvm_rx_mq+0x71/0xb0 [iwlmvm]
iwl_pcie_rx_handle+0x3b5/0xa70 [iwlwifi]
? irq_forced_thread_fn+0x80/0x80
iwl_pcie_irq_rx_msix_handler+0x58/0x120 [iwlwifi]
irq_thread_fn+0x23/0x60
irq_thread+0xd8/0x170
? wake_threads_waitq+0x30/0x30
kthread+0x103/0x140
? irq_thread_dtor+0xa0/0xa0
? kthread_park+0x90/0x90
ret_from_fork+0x1f/0x30
---[ end trace 0c7c7c0cf1fc73cf ]---
--
Jens Axboe
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