I'm here because I'm unsure which package to submit my bug to. My issue is that ever since upgrading my Thinkpad T540P from Jessie about a month ago, my wireless ( 04:00.0 Network controller: Intel Corporation Wireless 7260 (rev 83) ) consistently disconnects and the wlan1 interface f(rom typing `sudo ifconfig`) also disappears.
Restarting the computer or turning it **off** completely and then back on doesn't seem to fix it. The only consistent way to fix is to boot using a Ubuntu 16.04 Live CD - I can immediately see all my networks, and rebooting back into Debian my wireless card is now working for a short period of time. I have tried several kernels - 4.9, 4.8, and even 3.10, the same issue happens on all of them Here is some relevant information from syslog around the time the wifi stops: Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.116641] iwlwifi 0000:04:00.0: Queue 16 stuck for 10000 ms. Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.116673] iwlwifi 0000:04:00.0: Current SW read_ptr 251 write_ptr 39 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135069] ------------[ cut here ]------------ Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135091] WARNING: CPU: 3 PID: 0 at /build/linux-8fxPc5/linux-4.9.6/drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1864 iwl_trans_pcie_grab_nic_access+0xe4/0xf0 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135094] Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff) Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135095] Modules linked in: ctr ccm rfcomm ebtable_filter ebtables cmac bnep uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 videobuf2_core btrtl btbcm btintel videodev bluetooth uas media usb_storage snd_hda_codec_hdmi arc4 iTCO_wdt iTCO_vendor_support intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel iwlmvm kvm mac80211 irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate intel_uncore i915 iwlwifi snd_hda_codec_realtek intel_rapl_perf snd_hda_codec_generic joydev evdev pcspkr serio_raw cfg80211 sg drm_kms_helper snd_hda_intel rtsx_pci_ms snd_hda_codec memstick lpc_ich drm snd_hda_core snd_hwdep shpchp snd_pcm_oss snd_mixer_oss mei_me snd_pcm i2c_algo_bit ie31200_edac mei snd_timer edac_core ip6t_REJECT nf_reject_ipv6 thinkpad_acpi wmi nvram Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135175] snd nf_log_ipv6 soundcore rfkill ac battery tpm_tis video tpm_tis_core button tpm xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common binfmt_misc xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp loop nf_conntrack parport_pc ppdev iptable_filter lp parport ip_tables x_tables autofs4 ext4 crc16 jbd2 fscrypto ecb mbcache raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear md_mod hid_logitech_hidpp hid_logitech_dj usbhid hid sr_mod cdrom sd_mod rtsx_pci_sdmmc mmc_core ahci crc32c_intel libahci libata aesni_intel xhci_pci scsi_mod xhci_hcd aes_x86_64 glue_helper lrw ehci_pci gf128mul ehci_hcd ablk_helper cryptd e1000e psmouse usbcore i2c_i801 rtsx_pci i2c_smbus ptp mfd_core pps_core usb_common thermal fjes Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135287] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.9.0-1-amd64 #1 Debian 4.9.6-3 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135288] Hardware name: LENOVO 20BECTO1WW/20BECTO1WW, BIOS GMET70WW (2.18 ) 03/05/2015 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135291] 0000000000000000 ffffffffb2d28e34 ffff8da6fe2c3d58 0000000000000000 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135297] ffffffffb2a76dde ffff8da6ea4b0018 ffff8da6fe2c3db0 ffff8da6fe2c3de0 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135302] 000000000080bb20 ffff8da6e6214c80 0000000000000000 ffffffffb2a76e5f Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135307] Call Trace: Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135310] <IRQ> Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135320] [<ffffffffb2d28e34>] ? dump_stack+0x5c/0x78 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135328] [<ffffffffb2a76dde>] ? __warn+0xbe/0xe0 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135333] [<ffffffffb2a76e5f>] ? warn_slowpath_fmt+0x5f/0x80 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135341] [<ffffffffc0a4310f>] ? iwl_poll_bit+0x2f/0x70 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135350] [<ffffffffc0a51de4>] ? iwl_trans_pcie_grab_nic_access+0xe4/0xf0 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135357] [<ffffffffc0a508c7>] ? iwl_trans_pcie_read_mem+0x37/0xb0 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135366] [<ffffffffc0a53de0>] ? iwl_trans_pcie_log_scd_error+0xb0/0x300 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135374] [<ffffffffc0a45418>] ? __iwl_err+0x68/0x90 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135383] [<ffffffffc0a4b897>] ? iwl_pcie_txq_stuck_timer+0x77/0xa0 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135391] [<ffffffffc0a4b820>] ? iwl_pcie_irq_msix_handler+0x350/0x350 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135398] [<ffffffffb2ae3e40>] ? call_timer_fn+0x30/0x110 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135403] [<ffffffffb2ae43aa>] ? run_timer_softirq+0x20a/0x4a0 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135409] [<ffffffffb2af4ca0>] ? tick_sched_handle.isra.12+0x50/0x50 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135412] [<ffffffffb2af4c70>] ? tick_sched_handle.isra.12+0x20/0x50 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135415] [<ffffffffb2af4cd8>] ? tick_sched_timer+0x38/0x70 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135423] [<ffffffffb2ffe895>] ? __do_softirq+0x105/0x290 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135428] [<ffffffffb2a7ceae>] ? irq_exit+0xae/0xb0 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135432] [<ffffffffb2ffe6ae>] ? smp_apic_timer_interrupt+0x3e/0x50 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135437] [<ffffffffb2ffd9c2>] ? apic_timer_interrupt+0x82/0x90 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135438] <EOI> Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135444] [<ffffffffb2ec13ba>] ? cpuidle_enter_state+0x11a/0x2b0 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135448] [<ffffffffb2ec13a7>] ? cpuidle_enter_state+0x107/0x2b0 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135452] [<ffffffffb2ab9474>] ? cpu_startup_entry+0x154/0x240 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135457] [<ffffffffb2a47fdd>] ? start_secondary+0x14d/0x190 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135459] ---[ end trace d18647dea6bd1228 ]--- Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.135471] iwl data: 00000000: 58 3e 2c fe a6 8d ff ff 87 a2 f4 c1 b0 88 b7 a6 X>,............. Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.153842] iwlwifi 0000:04:00.0: FH TRBs(0) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.172025] iwlwifi 0000:04:00.0: FH TRBs(1) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.190182] iwlwifi 0000:04:00.0: FH TRBs(2) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.208315] iwlwifi 0000:04:00.0: FH TRBs(3) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.226454] iwlwifi 0000:04:00.0: FH TRBs(4) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.244697] iwlwifi 0000:04:00.0: FH TRBs(5) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.262947] iwlwifi 0000:04:00.0: FH TRBs(6) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.281168] iwlwifi 0000:04:00.0: FH TRBs(7) = 0x5a5a5a5a Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317561] ------------[ cut here ]------------ Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317573] WARNING: CPU: 3 PID: 0 at /build/linux-8fxPc5/linux-4.9.6/drivers/net/wireless/intel/iwlwifi/iwl-trans.h:1194 iwl_trans_pcie_log_scd_error+0x26f/0x300 [iwlwifi] Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317575] Modules linked in: ctr ccm rfcomm ebtable_filter ebtables cmac bnep uvcvideo videobuf2_vmalloc videobuf2_memops btusb videobuf2_v4l2 videobuf2_core btrtl btbcm btintel videodev bluetooth uas media usb_storage snd_hda_codec_hdmi arc4 iTCO_wdt iTCO_vendor_support intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel iwlmvm kvm mac80211 irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate intel_uncore i915 iwlwifi snd_hda_codec_realtek intel_rapl_perf snd_hda_codec_generic joydev evdev pcspkr serio_raw cfg80211 sg drm_kms_helper snd_hda_intel rtsx_pci_ms snd_hda_codec memstick lpc_ich drm snd_hda_core snd_hwdep shpchp snd_pcm_oss snd_mixer_oss mei_me snd_pcm i2c_algo_bit ie31200_edac mei snd_timer edac_core ip6t_REJECT nf_reject_ipv6 thinkpad_acpi wmi nvram Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317622] snd nf_log_ipv6 soundcore rfkill ac battery tpm_tis video tpm_tis_core button tpm xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common binfmt_misc xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp loop nf_conntrack parport_pc ppdev iptable_filter lp parport ip_tables x_tables autofs4 ext4 crc16 jbd2 fscrypto ecb mbcache raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear md_mod hid_logitech_hidpp hid_logitech_dj usbhid hid sr_mod cdrom sd_mod rtsx_pci_sdmmc mmc_core ahci crc32c_intel libahci libata aesni_intel xhci_pci scsi_mod xhci_hcd aes_x86_64 glue_helper lrw ehci_pci gf128mul ehci_hcd ablk_helper cryptd e1000e psmouse usbcore i2c_i801 rtsx_pci i2c_smbus ptp mfd_core pps_core usb_common thermal fjes Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317691] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G W 4.9.0-1-amd64 #1 Debian 4.9.6-3 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317692] Hardware name: LENOVO 20BECTO1WW/20BECTO1WW, BIOS GMET70WW (2.18 ) 03/05/2015 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317694] 0000000000000000 ffffffffb2d28e34 0000000000000000 0000000000000000 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317697] ffffffffb2a76dde 0000000000000000 00000000a5a5a5a5 0000000000a02e34 Mar 7 13:11:18 thinkpad-t540p kernel: [ 5675.317702] ffff8da6ea4b0018 0000000000000002 0000000000000000 ffffffffc0a53f9f
