Return-path: Received: from mail-he1eur01on0112.outbound.protection.outlook.com ([104.47.0.112]:48064 "EHLO EUR01-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751878AbdF3Qcf (ORCPT ); Fri, 30 Jun 2017 12:32:35 -0400 From: Andrey Ryabinin To: Kalle Valo , ath10k@lists.infradead.org, linux-wireless , Networking , LKML Subject: WARN_ON_ONCE(work > weight) in napi_poll() Message-ID: <26670dce-4dd2-f8e4-0e14-90d74257e739@virtuozzo.com> (sfid-20170630_183241_439342_89EE1273) Date: Fri, 30 Jun 2017 19:34:44 +0300 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: 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 [37207.593433] Call Trace: [37207.593442] dump_stack+0x68/0x96 [37207.593447] __warn+0xcb/0xf0 [37207.593450] warn_slowpath_null+0x1d/0x20 [37207.593452] net_rx_action+0x258/0x360 [37207.593459] __do_softirq+0x12f/0x2f6 [37207.593463] run_ksoftirqd+0x1f/0x40 [37207.593468] smpboot_thread_fn+0x10a/0x160 [37207.593471] kthread+0x108/0x140 [37207.593474] ? sort_range+0x30/0x30 [37207.593477] ? kthread_create_on_node+0x40/0x40 [37207.593480] ret_from_fork+0x2e/0x40 [37207.593483] ---[ end trace 5e4e25ee6369e3eb ]---