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Date: Tue, 12 Aug 2014 12:05:09 -0700 From: Steven Noonan <steven@...inklabs.net> To: Michal Hocko <mhocko@...e.cz> Cc: "Grumbach, Emmanuel" <emmanuel.grumbach@...el.com>, "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>, "Berg, Johannes" <johannes.berg@...el.com>, "ilw@...ux.intel.com" <ilw@...ux.intel.com>, LKML <linux-kernel@...r.kernel.org> Subject: Re: wlwifi - Microcode SW error detected. I'm seeing this on linus/master right now... $ uname -r 3.16.0-ec2-10567-gc7a19c7 $ dmesg [...] [ 32.450641] ieee80211 phy0: Hardware restart was requested [ 32.451124] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 32.451457] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 32.726567] iwlwifi 0000:04:00.0: Microcode SW error detected. Restarting 0x2000000. [ 32.726572] iwlwifi 0000:04:00.0: CSR values: [ 32.726574] iwlwifi 0000:04:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG) [ 32.726586] iwlwifi 0000:04:00.0: CSR_HW_IF_CONFIG_REG: 0X40489204 [ 32.726597] iwlwifi 0000:04:00.0: CSR_INT_COALESCING: 0X80000040 [ 32.726608] iwlwifi 0000:04:00.0: CSR_INT: 0X00000000 [ 32.726618] iwlwifi 0000:04:00.0: CSR_INT_MASK: 0X00000000 [ 32.726629] iwlwifi 0000:04:00.0: CSR_FH_INT_STATUS: 0X00000000 [ 32.726639] iwlwifi 0000:04:00.0: CSR_GPIO_IN: 0X00000000 [ 32.726650] iwlwifi 0000:04:00.0: CSR_RESET: 0X00000000 [ 32.726661] iwlwifi 0000:04:00.0: CSR_GP_CNTRL: 0X080403c5 [ 32.726671] iwlwifi 0000:04:00.0: CSR_HW_REV: 0X00000144 [ 32.726682] iwlwifi 0000:04:00.0: CSR_EEPROM_REG: 0X00000000 [ 32.726692] iwlwifi 0000:04:00.0: CSR_EEPROM_GP: 0X80000000 [ 32.726703] iwlwifi 0000:04:00.0: CSR_OTP_GP_REG: 0X803a0000 [ 32.726713] iwlwifi 0000:04:00.0: CSR_GIO_REG: 0X00080042 [ 32.726724] iwlwifi 0000:04:00.0: CSR_GP_UCODE_REG: 0X00000000 [ 32.726734] iwlwifi 0000:04:00.0: CSR_GP_DRIVER_REG: 0X00000000 [ 32.726745] iwlwifi 0000:04:00.0: CSR_UCODE_DRV_GP1: 0X00000000 [ 32.726755] iwlwifi 0000:04:00.0: CSR_UCODE_DRV_GP2: 0X00000000 [ 32.726766] iwlwifi 0000:04:00.0: CSR_LED_REG: 0X00000060 [ 32.726777] iwlwifi 0000:04:00.0: CSR_DRAM_INT_TBL_REG: 0X880d2aef [ 32.726787] iwlwifi 0000:04:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200 [ 32.726798] iwlwifi 0000:04:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5 [ 32.726808] iwlwifi 0000:04:00.0: CSR_MONITOR_STATUS_REG: 0X3c08019d [ 32.726819] iwlwifi 0000:04:00.0: CSR_HW_REV_WA_REG: 0X0001001a [ 32.726830] iwlwifi 0000:04:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000 [ 32.726831] iwlwifi 0000:04:00.0: FH register values: [ 32.726851] iwlwifi 0000:04:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2135fa00 [ 32.726863] iwlwifi 0000:04:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02135fb0 [ 32.726875] iwlwifi 0000:04:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000020 [ 32.726886] iwlwifi 0000:04:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114 [ 32.726898] iwlwifi 0000:04:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc [ 32.726909] iwlwifi 0000:04:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000 [ 32.726921] iwlwifi 0000:04:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000 [ 32.726933] iwlwifi 0000:04:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001 [ 32.726945] iwlwifi 0000:04:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000 [ 32.727049] iwlwifi 0000:04:00.0: Start IWL Error Log Dump: [ 32.727051] iwlwifi 0000:04:00.0: Status: 0x00000000, count: 6 [ 32.727053] iwlwifi 0000:04:00.0: Loaded firmware version: 23.214.9.0 [ 32.727055] iwlwifi 0000:04:00.0: 0x0000277B | ADVANCED_SYSASSERT [ 32.727056] iwlwifi 0000:04:00.0: 0x00A002B0 | uPc [ 32.727058] iwlwifi 0000:04:00.0: 0x00000000 | branchlink1 [ 32.727059] iwlwifi 0000:04:00.0: 0x00000BA4 | branchlink2 [ 32.727061] iwlwifi 0000:04:00.0: 0x000166A4 | interruptlink1 [ 32.727062] iwlwifi 0000:04:00.0: 0x00173B03 | interruptlink2 [ 32.727064] iwlwifi 0000:04:00.0: 0x00000024 | data1 [ 32.727065] iwlwifi 0000:04:00.0: 0x00000018 | data2 [ 32.727066] iwlwifi 0000:04:00.0: 0xDEADBEEF | data3 [ 32.727068] iwlwifi 0000:04:00.0: 0x003BE59F | beacon time [ 32.727069] iwlwifi 0000:04:00.0: 0x00041A80 | tsf low [ 32.727070] iwlwifi 0000:04:00.0: 0x00000000 | tsf hi [ 32.727072] iwlwifi 0000:04:00.0: 0x00000000 | time gp1 [ 32.727073] iwlwifi 0000:04:00.0: 0x00041A80 | time gp2 [ 32.727075] iwlwifi 0000:04:00.0: 0x00000000 | time gp3 [ 32.727076] iwlwifi 0000:04:00.0: 0x000417D6 | uCode version [ 32.727077] iwlwifi 0000:04:00.0: 0x00000144 | hw version [ 32.727079] iwlwifi 0000:04:00.0: 0x40489204 | board version [ 32.727080] iwlwifi 0000:04:00.0: 0x0000001C | hcmd [ 32.727081] iwlwifi 0000:04:00.0: 0x00022000 | isr0 [ 32.727083] iwlwifi 0000:04:00.0: 0x01000000 | isr1 [ 32.727084] iwlwifi 0000:04:00.0: 0x00000002 | isr2 [ 32.727085] iwlwifi 0000:04:00.0: 0x004040C0 | isr3 [ 32.727087] iwlwifi 0000:04:00.0: 0x00000000 | isr4 [ 32.727088] iwlwifi 0000:04:00.0: 0x00000110 | isr_pref [ 32.727090] iwlwifi 0000:04:00.0: 0x00000000 | wait_event [ 32.727091] iwlwifi 0000:04:00.0: 0x00000080 | l2p_control [ 32.727092] iwlwifi 0000:04:00.0: 0x00010000 | l2p_duration [ 32.727094] iwlwifi 0000:04:00.0: 0x0000003F | l2p_mhvalid [ 32.727095] iwlwifi 0000:04:00.0: 0x00000080 | l2p_addr_match [ 32.727097] iwlwifi 0000:04:00.0: 0x00000005 | lmpm_pmg_sel [ 32.727098] iwlwifi 0000:04:00.0: 0x18051651 | timestamp [ 32.727099] iwlwifi 0000:04:00.0: 0x00002030 | flow_handler [ 32.727102] ieee80211 phy0: Hardware restart was requested [ 32.727583] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [ 32.727910] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S [...] On Mon, Feb 10, 2014 at 4:54 AM, Michal Hocko <mhocko@...e.cz> wrote: > On Sun 09-02-14 06:46:20, Grumbach, Emmanuel wrote: > [...] >> Is this a regression? > > No idea. I haven't tried to reproduce it. > >> To me, it looks like a pure firmware issue. > > The message points at FW but I have no idea what it actually tries to > tell, except that something went really wrong. > -- > Michal Hocko > SUSE Labs > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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