Re: WARNING: CPU: 1 PID: 2485 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752 iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi]
On Sat, 2016-04-16 at 17:43 +0200, Borislav Petkov wrote: > On Fri, Apr 15, 2016 at 04:16:02AM +, Grumbach, Emmanuel wrote: > > [1] > > https://git.kernel.org/cgit/linux/kernel/git/iwlwifi/backport-iwlwi > > fi.git/ > > It is very strange to pull from this repo, git fetch is doing > something > for a while now without any forward progress. This is not surprising at all. This tree is not a kernel tree, but rather a backport tree. It doesn't contain anything besides the Wifi stack and the backport code. It has no common commit with the Linux kernel. I understand that you fetched this tree from a kernel tree but that's not a good idea. Git will try to find a common ancestor but that will fail... after a huge number of tentatives. You'd better clone it. > In any case, 4.5 is bad too, testing 4.4 now. Here you go. > I 'm travelling currently > so the whole bisection deal will take a whole but I'll get to it > eventually. I'll be glad to see something coming out of this, but I can't say I am very optimistic. > > Thanks for taking a look. >
Re: WARNING: CPU: 1 PID: 2485 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752 iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi]
On Fri, Apr 15, 2016 at 04:16:02AM +, Grumbach, Emmanuel wrote: > [1] https://git.kernel.org/cgit/linux/kernel/git/iwlwifi/backport-iwlwi > fi.git/ It is very strange to pull from this repo, git fetch is doing something for a while now without any forward progress. In any case, 4.5 is bad too, testing 4.4 now. I'm travelling currently so the whole bisection deal will take a whole but I'll get to it eventually. Thanks for taking a look. -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. Srsly. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: WARNING: CPU: 1 PID: 2485 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752 iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi]
On Fri, 2016-04-15 at 02:07 +, Borislav Petkov wrote: > Hi, > > so I'm seeing this when wlan0 tries to associate. On 4.6-rc2 + tip. > After that, wifi is dead in the water. Anyone have a clue? > > And 4.5 seems fine, I'm typing from it as we speak. > ... > [ 661.142657] [ cut here ]---- > [ 661.142816] WARNING: CPU: 1 PID: 2485 at > drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752 > iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi] > [ 661.143231] Timeout waiting for hardware access (CSR_GP_CNTRL > 0x) > This means that we have an electrical issue that prevents us from accessing the device over the PCI bus. BAR has been garbaged or alike. Every time I tried to debug that from the driver side it has ... failed. Because the "good" in the end did exhibit the problem. So, unless you are ready to embark for a bisection journey (and hope that this time when you type 'git bisect good' it is really 'good'), I can't do much. What I can suggest is to install our latest backport based tree on 4.5. This will allow you to have an easily bisectable tree. But it might very well be that 4.5 + latest driver (equivalent to 4.6 as far as iwlwifi is concerned) will be fine. The backport tree is here [1]. Unfortunately, that's the only thing I can suggest for now. [1] https://git.kernel.org/cgit/linux/kernel/git/iwlwifi/backport-iwlwi fi.git/ > -- > Regards/Gruss, > Boris. > > ECO tip #101: Trim your mails when you reply. Srsly.
WARNING: CPU: 1 PID: 2485 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752 iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi]
Hi, so I'm seeing this when wlan0 tries to associate. On 4.6-rc2 + tip. After that, wifi is dead in the water. Anyone have a clue? And 4.5 seems fine, I'm typing from it as we speak. ... [2.111418] iwlwifi :02:00.0: loaded firmware version 21.302800.0 op_mode iwlmvm ... [2.220954] iwlwifi :02:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210 [2.221460] iwlwifi :02:00.0: L1 Enabled - LTR Disabled [2.221988] iwlwifi :02:00.0: L1 Enabled - LTR Disabled ... [ 311.776764] iwlwifi :02:00.0: L1 Enabled - LTR Disabled [ 311.777226] iwlwifi :02:00.0: L1 Enabled - LTR Disabled [ 311.837783] iwlwifi :02:00.0: L1 Enabled - LTR Disabled [ 311.838262] iwlwifi :02:00.0: L1 Enabled - LTR Disabled [ 311.853871] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 315.606321] wlan0: authenticate with 00:c0:23:b9:ff:10 [ 315.609802] wlan0: send auth to 00:c0:23:b9:ff:10 (try 1/3) [ 315.612246] wlan0: authenticated [ 315.612656] iwlwifi :02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP [ 315.612946] iwlwifi :02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 315.614655] wlan0: associate with 00:c0:23:b9:ff:10 (try 1/3) [ 315.718696] wlan0: associate with 00:c0:23:b9:ff:10 (try 2/3) [ 315.722311] wlan0: deauthenticated from 00:c0:23:b9:ff:10 while associating (Reason: 6=CLASS2_FRAME_FROM_NONAUTH_STA) [ 316.159994] wlan0: authenticate with 00:c0:23:ba:5a:70 [ 316.162826] wlan0: send auth to 00:c0:23:ba:5a:70 (try 1/3) [ 316.166422] wlan0: authenticated [ 316.166864] iwlwifi :02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP [ 316.167164] iwlwifi :02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 316.170689] wlan0: associate with 00:c0:23:ba:5a:70 (try 1/3) [ 316.173951] wlan0: RX AssocResp from 00:c0:23:ba:5a:70 (capab=0x121 status=0 aid=4) [ 316.175966] wlan0: associated [ 316.176160] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 653.272205] iwlwifi :02:00.0: Failed to wake NIC for hcmd [ 653.272497] iwlwifi :02:00.0: Error sending STATISTICS_CMD: enqueue_hcmd failed: -5 [ 653.290868] iwlwifi :02:00.0: Failed to wake NIC for hcmd [ 653.291211] iwlwifi :02:00.0: Error sending STATISTICS_CMD: enqueue_hcmd failed: -5 [ 661.124556] iwlwifi :02:00.0: Queue 2 stuck for 1 ms. [ 661.124748] iwlwifi :02:00.0: Current SW read_ptr 59 write_ptr 63 [ 661.142657] [ cut here ] [ 661.142816] WARNING: CPU: 1 PID: 2485 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752 iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi] [ 661.143231] Timeout waiting for hardware access (CSR_GP_CNTRL 0x) [ 661.143449] Modules linked in: msr hid_generic arc4 kvm_amd kvm irqbypass crct10dif_pclmul crc32_pclmul iwlmvm crc32c_intel mac80211 jitterentropy_rng sha256_generic hmac acpi_cpufreq tpm_infineon drbg amdgpu iwlwifi aesni_intel snd_hda_codec_conexant aes_x86_64 glue_helper lrw snd_hda_codec_generic gf128mul snd_hda_codec_hdmi ablk_helper cryptd psmouse snd_hda_intel evdev joydev input_leds cfg80211 snd_hda_codec serio_raw pcspkr snd_hwdep snd_hda_core tg3 snd_pcm fam15h_power ptp edac_core pps_core xhci_pci k10temp snd_timer ttm xhci_hcd libphy ehci_pci snd ehci_hcd i2c_piix4 sg soundcore battery tpm_tis tpm video processor ac button sd_mod thermal [ 661.145657] CPU: 1 PID: 2485 Comm: iceweasel Tainted: GW 4.6.0-rc2+ #1 [ 661.145905] Hardware name: HP HP EliteBook 745 G3/807E, BIOS N73 Ver. 01.08 01/28/2016 [ 661.146159] 812d9e79 88043dc83d78 [ 661.146418] 810588ac 88042474 88043dc83dc8 880424747adc [ 661.146677] 88043dc83e00 88009b2301e0 88009b2301f0 8105891f [ 661.146937] Call Trace: [ 661.147020][] ? dump_stack+0x5c/0x83 [ 661.147223] [] ? __warn+0xec/0x110 [ 661.147387] [] ? warn_slowpath_fmt+0x4f/0x60 [ 661.147580] [] ? iwl_poll_bit+0x2f/0x70 [iwlwifi] [ 661.147785] [] ? iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi] [ 661.148045] [] ? iwl_trans_pcie_read_mem+0x27/0x90 [iwlwifi] [ 661.148280] [] ? iwl_pcie_txq_stuck_timer+0xd0/0x380 [iwlwifi] [ 661.148521] [] ? task_tick_fair+0x4b8/0x920 [ 661.148712] [] ? perf_event_task_tick+0x6f/0x230 [ 661.148915] [] ? iwl_pcie_txq_unmap+0x160/0x160 [iwlwifi] [ 661.149142] [] ? call_timer_fn+0x30/0x150 [ 661.149325] [] ? iwl_pcie_txq_unmap+0x160/0x160 [iwlwifi] [ 661.149552] [] ? run_timer_softirq+0x223/0x2d0 [ 661.149750] [] ? __do_softirq+0xdd/0x2c4 [ 661.149931] [] ? irq_exit+0x85/0x90 [ 661.150098] [] ? smp_apic_timer_interrupt+0x3e/0x50 [ 661.150308] [] ? apic_timer_interrupt+0x82/0x90 [ 661.150507] [ 661.150573] ---[ end trace 9159ae5cde33d1c4 ]--- [ 661.150786] iwl data: : df 11 13 81 ff ff ff ff ae 0f 0c 81 00 00 00 00 [ 661.168775
