Return-path: Received: from snoopy.schmut.com ([185.37.248.246]:59912 "EHLO snoopy.schmut.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751682AbdJOQVo (ORCPT ); Sun, 15 Oct 2017 12:21:44 -0400 From: Mario Theodoridis Subject: Re: iwlwifi crash with hostapd To: linux-wireless@vger.kernel.org References: <6e51916a-6178-5620-8f45-54705c1b4d98@schmut.com> <20171012212454.GB4362@us.netrek.org> Message-ID: (sfid-20171015_182243_989014_74A212EE) Date: Sun, 15 Oct 2017 18:21:36 +0200 MIME-Version: 1.0 In-Reply-To: <20171012212454.GB4362@us.netrek.org> Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Thanks for the pointers, James. On 12.10.2017 23:24, James Cameron wrote: > There's a good chance this problem has been fixed already. You > are using a v4.4 kernel with many patches applied by Ubuntu. Here, we > are more concerned with the latest kernels, and v4.4 is quite old. > > Please test some of the later kernels, see > https://wiki.ubuntu.com/Kernel/MainlineBuilds > > In particular, test v4.13 or v4.14-rc4. I'm having a hard time with that, because the virtualbox-dkms build fails with the 4.13 kernel, and virtualbox unfortunately is essential. > > If the problem still happens, capture the same information and send it > again as a reply. > > If the problem doesn't happen, then you can either continue to use the > new kernel, or find when the problem was fixed; a long but rewarding > process. > > Should the problem have been fixed for v4.10, you might also switch to > using the Ubuntu package linux-generic-hwe-16.04. > https://wiki.ubuntu.com/Kernel/RollingLTSEnablementStack#hwe-16.04 The 4.10 kernel readily produced this one ------------[ cut here ]------------ WARNING: CPU: 4 PID: 1617 at /build/linux-hwe-IJy1zi/linux-hwe-4.10.0/drivers/net/wireless/intel/iwlwifi/mvm/tx.c:510 iwl_mvm_tx_skb_non_sta+0x39a/0x440 [iwlmvm] Modules linked in: bnep ccm pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nf_log_ipv4 nf_log_common xt_LOG xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables x_tables snd_hda_codec_hdmi arc4 iwlmvm mac80211 snd_hda_codec_realtek snd_hda_codec_generic intel_rapl x86_pkg_temp_thermal intel_powerclamp iwlwifi coretemp snd_hda_intel snd_hda_codec kvm_intel snd_hda_core snd_hwdep kvm input_leds irqbypass crct10dif_pclmul snd_pcm bridge crc32_pclmul joydev stp llc ghash_clmulni_intel snd_seq_midi pcbc snd_seq_midi_event snd_rawmidi aesni_intel snd_seq aes_x86_64 crypto_simd snd_seq_device glue_helper cfg80211 cryptd snd_timer intel_cstate snd intel_rapl_perf soundcore shpchp mei_me hci_uart mei btbcm btqca btintel bluetooth intel_lpss_acpi acpi_als mac_hid intel_lpss kfifo_buf tpm_infineon industrialio acpi_pad parport_pc ppdev lp parport autofs4 i915 e1000e i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops e100 hid_generic ptp i2c_hid ahci mii drm pps_core pinctrl_sunrisepoint libahci usbhid e1000 hid wmi video pinctrl_intel fjes CPU: 4 PID: 1617 Comm: hostapd Tainted: G OE 4.10.0-37-generic #41~16.04.1-Ubuntu Hardware name: Gigabyte Technology Co., Ltd. Z170M-D3H/Z170M-D3H-CF, BIOS F20 11/17/2016 Call Trace: dump_stack+0x63/0x90 __warn+0xcb/0xf0 warn_slowpath_null+0x1d/0x20 iwl_mvm_tx_skb_non_sta+0x39a/0x440 [iwlmvm] iwl_mvm_mac_tx+0x11e/0x1d0 [iwlmvm] ieee80211_tx_frags+0x14b/0x220 [mac80211] __ieee80211_tx+0x81/0x180 [mac80211] ieee80211_tx+0x10f/0x150 [mac80211] ieee80211_xmit+0x9b/0xf0 [mac80211] __ieee80211_tx_skb_tid_band+0x5c/0x70 [mac80211] ieee80211_mgmt_tx+0x42c/0x4a0 [mac80211] cfg80211_mlme_mgmt_tx+0xdc/0x310 [cfg80211] nl80211_tx_mgmt+0x212/0x360 [cfg80211] genl_family_rcv_msg+0x1db/0x3b0 ? skb_queue_tail+0x43/0x50 genl_rcv_msg+0x59/0xa0 ? genl_notify+0x80/0x80 netlink_rcv_skb+0xa4/0xc0 genl_rcv+0x28/0x40 netlink_unicast+0x18c/0x240 netlink_sendmsg+0x2fb/0x3a0 ? aa_sock_msg_perm+0x61/0x150 sock_sendmsg+0x38/0x50 ___sys_sendmsg+0x2c2/0x2d0 ? sock_sendmsg+0x38/0x50 ? SYSC_sendto+0x101/0x190 ? __check_object_size+0x108/0x1e3 ? _copy_to_user+0x55/0x60 __sys_sendmsg+0x54/0x90 SyS_sendmsg+0x12/0x20 entry_SYSCALL_64_fastpath+0x1e/0xad RIP: 0033:0x7fcc38cfe450 RSP: 002b:00007fffdefc9b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000563e91285590 RCX: 00007fcc38cfe450 RDX: 0000000000000000 RSI: 00007fffdefc9ba0 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000563e91283a70 R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000009 R14: 0000000000000000 R15: 0000000000000000 ---[ end trace 4d9a544d3976536e ]--- -- Mit freundlichen Grüßen/Best regards Mario Theodoridis