2013/11/6 wzyboy <wzyboy@xxxxxxxxxx>: > I've attached the output of `lspci -xxx'. The next time this bug > occurs I will run it again and send the output to you. So dramatical it was. Several minutes ago I clicked on "Senden" (German for "Send") button to send that email. After the mail was sent, I opened a new tab in the browser, trying to google something and found the Internet connection is lost. -- The bug occured again! So I ran `lcpci -xxx" and saved the output along with the kernel logs. I'm shocked that the hex strings are all "00". I rebooted my laptop and try to send you the logs and the bug occurs again... -- seems more and more freuquent -- and I had to reboot ... Here are the logs ... finally. -- wzyboy
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09) 00: 86 80 04 0a 06 00 90 20 09 00 00 06 00 00 00 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 e0 00 00 00 00 00 00 00 00 00 00 00 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) 00: 86 80 16 0a 07 04 90 00 09 00 00 03 00 00 00 00 10: 04 00 00 f0 00 00 00 00 0c 00 00 e0 00 00 00 00 20: 01 30 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 90 00 00 00 00 00 00 00 0b 01 00 00 00:03.0 Audio device: Intel Corporation Device 0a0c (rev 09) 00: 86 80 0c 0a 06 04 10 00 09 00 03 04 10 00 00 00 10: 04 00 63 f0 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 50 00 00 00 00 00 00 00 0b 01 00 00 00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04) 00: 86 80 31 9c 06 04 90 02 04 30 03 0c 00 00 00 00 10: 04 00 62 f0 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 70 00 00 00 00 00 00 00 0b 01 00 00 00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev 04) 00: 86 80 3a 9c 06 04 10 00 04 00 80 07 00 00 80 00 10: 04 90 63 f0 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 50 00 00 00 00 00 00 00 0b 01 00 00 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I218-V (rev 04) 00: 86 80 59 15 07 04 10 00 04 00 00 02 00 00 00 00 10: 00 00 60 f0 00 e0 63 f0 81 30 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 c8 00 00 00 00 00 00 00 0b 01 00 00 00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04) 00: 86 80 20 9c 06 04 10 00 04 00 03 04 10 00 00 00 10: 04 40 63 f0 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 50 00 00 00 00 00 00 00 0a 01 00 00 00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 6 (rev e4) 00: 86 80 1a 9c 07 00 10 00 e4 00 04 06 10 00 81 00 10: 00 00 00 00 00 00 00 00 00 02 02 00 f0 00 00 20 20: 50 f0 50 f0 f1 ff 01 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 40 00 00 00 00 00 00 00 09 02 00 00 00:1c.1 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4) 00: 86 80 14 9c 07 00 10 00 e4 00 04 06 10 00 81 00 10: 00 00 00 00 00 00 00 00 00 03 03 00 f0 00 00 20 20: 40 f0 40 f0 f1 ff 01 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 03 00 00 00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04) 00: 86 80 26 9c 06 00 90 02 04 20 03 0c 00 00 00 00 10: 00 d0 63 f0 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 50 00 00 00 00 00 00 00 07 01 00 00 00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04) 00: 86 80 43 9c 07 00 10 02 04 00 01 06 00 00 80 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 e0 00 00 00 00 00 00 00 00 00 00 00 00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04) 00: 86 80 03 9c 07 04 b0 02 04 01 06 01 00 00 00 00 10: a9 30 00 00 b5 30 00 00 a1 30 00 00 b1 30 00 00 20: 61 30 00 00 00 c0 63 f0 00 00 00 00 aa 17 14 22 30: 00 00 00 00 80 00 00 00 00 00 00 00 06 02 00 00 00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04) 00: 86 80 22 9c 03 00 80 02 04 00 05 0c 00 00 00 00 10: 04 80 63 f0 00 00 00 00 00 00 00 00 00 00 00 00 20: a1 ef 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 03 00 00 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5227 (rev 01) 00: ec 10 27 52 06 04 10 00 01 00 00 ff 10 00 00 00 10: 00 00 50 f0 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 14 22 30: 00 00 00 00 40 00 00 00 00 00 00 00 0b 01 00 00 03:00.0 Network controller: Intel Corporation Wireless 7260 (rev ff) 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff // below are kernel message: Nov 06 14:48:46 xenien kernel: ------------[ cut here ]------------ Nov 06 14:48:46 xenien kernel: WARNING: CPU: 0 PID: 21668 at drivers/net/wireless/iwlwifi/pcie/trans.c:864 iwl_trans_pcie_grab_nic_access+0x1d5/0x1f0 [iwlwifi]() Nov 06 14:48:46 xenien kernel: Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff) Nov 06 14:48:46 xenien kernel: Modules linked in: usb_storage hid_generic usbhid hid fuse tun ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_n Nov 06 14:48:46 xenien kernel: dm_crypt dm_mod sd_mod rtsx_pci_sdmmc mmc_core crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel Nov 06 14:48:46 xenien kernel: CPU: 0 PID: 21668 Comm: kworker/u16:0 Tainted: G O 3.12.0-1-ARCH #1 Nov 06 14:48:46 xenien kernel: Hardware name: LENOVO 20AKCTO1WW/20AKCTO1WW, BIOS GIET62WW (2.12 ) 09/25/2013 Nov 06 14:48:46 xenien kernel: Workqueue: phy0 ieee80211_ba_session_work [mac80211] Nov 06 14:48:46 xenien kernel: 0000000000000009 ffff8801fdc4fb60 ffffffff814ebffb ffff8801fdc4fba8 Nov 06 14:48:46 xenien kernel: ffff8801fdc4fb98 ffffffff81062bbd ffff8800cc770000 ffff8800cc773258 Nov 06 14:48:46 xenien kernel: ffff8801fdc4fc48 00000000ffffffff ffff88021341e098 ffff8801fdc4fbf8 Nov 06 14:48:46 xenien kernel: Call Trace: Nov 06 14:48:46 xenien kernel: [<ffffffff814ebffb>] dump_stack+0x54/0x8d Nov 06 14:48:46 xenien kernel: [<ffffffff81062bbd>] warn_slowpath_common+0x7d/0xa0 Nov 06 14:48:46 xenien kernel: [<ffffffff81062c2c>] warn_slowpath_fmt+0x4c/0x50 Nov 06 14:48:46 xenien kernel: [<ffffffffa08794b5>] iwl_trans_pcie_grab_nic_access+0x1d5/0x1f0 [iwlwifi] Nov 06 14:48:46 xenien kernel: [<ffffffffa086c49e>] iwl_write_prph+0x2e/0xe0 [iwlwifi] Nov 06 14:48:46 xenien kernel: [<ffffffffa0877921>] iwl_trans_pcie_txq_disable+0x81/0x150 [iwlwifi] Nov 06 14:48:46 xenien kernel: [<ffffffffa0c32e05>] iwl_mvm_sta_tx_agg_stop+0x1b5/0x220 [iwlmvm] Nov 06 14:48:46 xenien kernel: [<ffffffffa0c29532>] iwl_mvm_mac_ampdu_action+0x172/0x1c0 [iwlmvm] Nov 06 14:48:46 xenien kernel: [<ffffffffa0b9bcba>] ___ieee80211_stop_tx_ba_session+0x14a/0x580 [mac80211] Nov 06 14:48:46 xenien kernel: [<ffffffffa0b9abda>] ieee80211_ba_session_work+0x19a/0x1c0 [mac80211] Nov 06 14:48:46 xenien kernel: [<ffffffff8107dac7>] process_one_work+0x167/0x450 Nov 06 14:48:46 xenien kernel: [<ffffffff8107e4d1>] worker_thread+0x121/0x3a0 Nov 06 14:48:46 xenien kernel: [<ffffffff8107e3b0>] ? manage_workers.isra.23+0x2b0/0x2b0 Nov 06 14:48:46 xenien kernel: [<ffffffff81084e60>] kthread+0xc0/0xd0 Nov 06 14:48:46 xenien kernel: [<ffffffff81084da0>] ? kthread_create_on_node+0x120/0x120 Nov 06 14:48:46 xenien kernel: [<ffffffff814faafc>] ret_from_fork+0x7c/0xb0 Nov 06 14:48:46 xenien kernel: [<ffffffff81084da0>] ? kthread_create_on_node+0x120/0x120 Nov 06 14:48:46 xenien kernel: ---[ end trace c46680bae616493c ]--- Nov 06 14:48:48 xenien kernel: iwlwifi 0000:03:00.0: Error sending ADD_STA: time out after 2000ms. Nov 06 14:48:48 xenien kernel: iwlwifi 0000:03:00.0: Current CMD queue read_ptr 28 write_ptr 29 Nov 06 14:48:48 xenien kernel: wlan0: HW problem - can not stop rx aggregation for 14:e6:e4:3c:24:f8 tid 0
