Sorry I forgot to "Reply-all" instead of "Reply"... (Bad habit developed by Google Groups) -- wzyboy ---------- Forwarded message ---------- From: wzyboy <wzyboy@xxxxxxxxxx> Date: 2013/11/5 Subject: Re: [Ilw] Intel Wireless 7260 hardware timed out randomly To: "Grumbach, Emmanuel" <emmanuel.grumbach@xxxxxxxxx> 2013/11/5 Grumbach, Emmanuel <emmanuel.grumbach@xxxxxxxxx>: > Are you sure it is the same phenomenon? > Same WARNING with same value in register? Yes I am sure that's the same phenomenon. And here are the comparison of those "WARNING" lines in recent days' kernel log: // I bought this laptop on Nov 01 and installed (with wired network) Arch Linux on the same day so no logs for Nov 01. On Nov 02 I started to use wireless network, and here came the WARNINGs: Nov 02 13:01:53 xenien kernel: WARNING: CPU: 2 PID: 790 at drivers/net/wireless/iwlwifi/mvm/mac80211.c:1047 iwl_mvm_mac_sta_state+0x230/0x290 [iwlmvm]() Nov 02 13:01:55 xenien kernel: WARNING: CPU: 2 PID: 790 at net/mac80211/sta_info.c:839 __sta_info_destroy+0x33c/0x380 [mac80211]() Nov 02 13:02:11 xenien kernel: WARNING: CPU: 1 PID: 4942 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 02 13:02:11 xenien kernel: Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff) Nov 02 13:09:17 xenien kernel: WARNING: CPU: 1 PID: 5776 at kernel/watchdog.c:245 watchdog_overflow_callback+0x9c/0xd0() Nov 02 13:09:17 xenien kernel: Watchdog detected hard LOCKUP on cpu 1 Nov 03 14:13:21 xenien kernel: WARNING: CPU: 3 PID: 454 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 03 14:13:21 xenien kernel: Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff) Nov 03 14:13:25 xenien kernel: WARNING: CPU: 0 PID: 454 at drivers/net/wireless/iwlwifi/mvm/mac80211.c:1047 iwl_mvm_mac_sta_state+0x230/0x290 [iwlmvm]() Nov 03 14:13:27 xenien kernel: WARNING: CPU: 0 PID: 454 at net/mac80211/sta_info.c:839 __sta_info_destroy+0x33c/0x380 [mac80211]() Nov 03 14:20:26 xenien kernel: WARNING: CPU: 1 PID: 6955 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 03 16:30:45 xenien kernel: WARNING: CPU: 3 PID: 12926 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 03 16:33:12 xenien kernel: WARNING: CPU: 0 PID: 469 at net/mac80211/sta_info.c:839 __sta_info_destroy+0x33c/0x380 [mac80211]() Nov 04 17:00:27 xenien kernel: WARNING: CPU: 3 PID: 10978 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 04 17:00:27 xenien kernel: Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff) Nov 04 17:00:31 xenien kernel: WARNING: CPU: 3 PID: 10978 at drivers/net/wireless/iwlwifi/mvm/mac80211.c:1047 iwl_mvm_mac_sta_state+0x230/0x290 [iwlmvm]() Nov 04 17:00:33 xenien kernel: WARNING: CPU: 0 PID: 10978 at net/mac80211/sta_info.c:839 __sta_info_destroy+0x33c/0x380 [mac80211]() Nov 04 22:13:08 xenien kernel: WARNING: CPU: 1 PID: 21506 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 04 22:13:12 xenien kernel: WARNING: CPU: 2 PID: 21506 at drivers/net/wireless/iwlwifi/mvm/mac80211.c:1047 iwl_mvm_mac_sta_state+0x230/0x290 [iwlmvm]() Nov 04 22:13:14 xenien kernel: WARNING: CPU: 2 PID: 21506 at net/mac80211/sta_info.c:839 __sta_info_destroy+0x33c/0x380 [mac80211]() Nov 04 22:26:13 xenien kernel: WARNING: CPU: 3 PID: 1623 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 04 22:26:17 xenien kernel: WARNING: CPU: 3 PID: 1623 at drivers/net/wireless/iwlwifi/mvm/mac80211.c:1047 iwl_mvm_mac_sta_state+0x230/0x290 [iwlmvm]() Nov 04 22:26:19 xenien kernel: WARNING: CPU: 3 PID: 1623 at net/mac80211/sta_info.c:839 __sta_info_destroy+0x33c/0x380 [mac80211]() Nov 04 22:31:41 xenien kernel: WARNING: CPU: 3 PID: 872 at drivers/net/wireless/iwlwifi/pcie/trans.c:883 iwl_trans_pcie_grab_nic_access+0x1d8/0x1f0 [iwlwifi]() Nov 04 22:31:45 xenien kernel: WARNING: CPU: 3 PID: 872 at drivers/net/wireless/iwlwifi/mvm/mac80211.c:1047 iwl_mvm_mac_sta_state+0x230/0x290 [iwlmvm]() Nov 04 22:31:47 xenien kernel: WARNING: CPU: 3 PID: 872 at net/mac80211/sta_info.c:839 __sta_info_destroy+0x33c/0x380 [mac80211]() // At the night of Nov 04 I compiled Linux 3.12 and no more WARNINGs on Nov 05, yet. These timestamps are of UTC+8. I added "options iwlmvm power_scheme=1" at about 2013-11-03 17:30 UTC+8... I've been using Linux 3.12 for one day now, no more bugs about iwlwifi.ko are encountered... Maybe this is fixed in Linux 3.12? -- wzyboy -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
