On 07/04/2017 04:49 PM, Kalle Valo wrote: > Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> writes: > >> I occasionally hit WARN_ON_ONCE(work > weight); in napi_poll() on a >> laptop with ath10k card. >> >> >> [37207.593370] ------------[ cut here ]------------ >> [37207.593380] WARNING: CPU: 0 PID: 7 at ../net/core/dev.c:5274 >> net_rx_action+0x258/0x360 >> [37207.593381] Modules linked in: snd_hda_codec_realtek snd_soc_skl >> snd_hda_codec_generic snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp >> snd_hda_ext_core snd_soc_sst_match snd_soc_core rtsx_pci_sdmmc >> mmc_core snd_pcm_dmaengine x86_pkg_temp_thermal snd_hda_intel uvcvideo >> kvm_intel videobuf2_vmalloc kvm snd_hda_codec snd_hwdep btusb >> videobuf2_memops btintel snd_hda_core videobuf2_v4l2 bluetooth >> irqbypass snd_pcm videobuf2_core crc32c_intel videodev mei_me mei >> rtsx_pci intel_lpss_pci intel_lpss_acpi intel_vbtn intel_lpss mfd_core >> tpm_tis intel_hid tpm_tis_core tpm efivarfs >> [37207.593430] CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.11.7 #28 >> [37207.593432] Hardware name: Dell Inc. XPS 13 9360/0839Y6, BIOS 1.3.5 05/08/2017 > > What firmware and hardware versions exactly? The dmesg output when > ath10k loads is preferred. As you are using XPS 13 I'm guessing it's one > of QCA6174 family. > Yes it's qca6174. $ dmesg |grep ath10 [ 0.624828] ath10k_pci 0000:3a:00.0: enabling device (0000 -> 0002) [ 0.626370] ath10k_pci 0000:3a:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0 [ 0.837862] ath10k_pci 0000:3a:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1a56:1535 [ 0.837863] ath10k_pci 0000:3a:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 0 testmode 0 [ 0.838388] ath10k_pci 0000:3a:00.0: firmware ver WLAN.RM.2.0-00180-QCARMSWPZ-1 api 4 features wowlan,ignore-otp,no-4addr-pad crc32 75dee6c5 [ 0.900606] ath10k_pci 0000:3a:00.0: board_file api 2 bmi_id N/A crc32 19644295 [ 3.020681] ath10k_pci 0000:3a:00.0: htt-ver 3.26 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 [ 9.574087] ath10k_pci 0000:3a:00.0 wlp58s0: renamed from wlan0
