On Mon, 2011-06-20 at 12:21 -0700, Andrew Lutomirski wrote: > On Mon, Jun 20, 2011 at 3:06 PM, wwguy <wey-yi.w.guy@xxxxxxxxx> wrote: > > On Mon, 2011-06-20 at 11:44 -0700, Andrew Lutomirski wrote: > >> On 3.0-git today, I get: > >> > >> [ 40.142872] DRHD: handling fault status reg 2 > >> [ 40.142892] DMAR:[DMA Write] Request device [03:00.0] fault addr ffe38000 > >> [ 40.142896] DMAR:[fault reason 05] PTE Write access is not set > >> > >> lspci says: > >> > >> 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) > >> > >> This seems to be triggered by interface state changes. The driver > >> still works. I don't see this on 2.6.39.1. > >> > > can I got more information. which repo you are using? > > git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git > > This is de505e709ffb09a7382ca8e0d8c7dbb171ba5830 from Linus' tree. > > > > > Can you provide full log? > > dmesg attached. > > /var/log/messages says: > > NetworkManager[804]: <info> (wlan0): bringing up device. > kernel: [ 85.153160] DRHD: handling fault status reg 2 > kernel: [ 85.153175] DMAR:[DMA Write] Request device [03:00.0] fault > addr ffe0e000 > kernel: [ 85.153178] DMAR:[fault reason 05] PTE Write access is not set > kernel: [ 85.207502] ADDRCONF(NETDEV_UP): wlan0: link is not ready > NetworkManager[804]: <info> Activation (wlan0/wireless): access point > 'xxxx' has security, but secrets are required. > NetworkManager[804]: <info> (wlan0): device state change: config -> > need-auth (reason 'none') [50 60 0] > NetworkManager[804]: <info> Activation (wlan0) Stage 2 of 5 (Device > Configure) complete. > NetworkManager[804]: <info> Activation (wlan0) Stage 1 of 5 (Device > Prepare) scheduled... > NetworkManager[804]: <info> Activation (wlan0) Stage 1 of 5 (Device > Prepare) started... > NetworkManager[804]: <info> (wlan0): device state change: need-auth -> > prepare (reason 'none') [60 40 0] > NetworkManager[804]: <info> Activation (wlan0) Stage 2 of 5 (Device > Configure) scheduled... > NetworkManager[804]: <info> Activation (wlan0) Stage 1 of 5 (Device > Prepare) complete. > NetworkManager[804]: <info> Activation (wlan0) Stage 2 of 5 (Device > Configure) starting... > NetworkManager[804]: <info> (wlan0): device state change: prepare -> > config (reason 'none') [40 50 0] > NetworkManager[804]: <info> Activation (wlan0/wireless): connection > 'Auto Aether Wind' has security, and secrets exist. No new secrets > needed. > NetworkManager[804]: <info> Config: added 'ssid' value 'xxxx' > NetworkManager[804]: <info> Config: added 'scan_ssid' value '1' > NetworkManager[804]: <info> Config: added 'key_mgmt' value 'WPA-PSK' > NetworkManager[804]: <info> Config: added 'psk' value '<omitted>' > NetworkManager[804]: <info> Config: added 'proto' value 'WPA RSN' > NetworkManager[804]: <info> Activation (wlan0) Stage 2 of 5 (Device > Configure) complete. > NetworkManager[804]: <info> Config: set interface ap_scan to 1 > kernel: [ 85.228522] DRHD: handling fault status reg 2 > kernel: [ 85.228526] DMAR:[DMA Write] Request device [03:00.0] fault > addr ffeb8000 > kernel: [ 85.228527] DMAR:[fault reason 05] PTE Write access is not set > NetworkManager[804]: <info> (wlan0): supplicant interface state: > inactive -> scanning > kernel: [ 85.471825] DRHD: handling fault status reg 2 > kernel: [ 85.471840] DMAR:[DMA Write] Request device [03:00.0] fault > addr ffe54000 > kernel: [ 85.471843] DMAR:[fault reason 05] PTE Write access is not set > NetworkManager[804]: <info> (wlan0): supplicant interface state: > scanning -> authenticating > > Are you seeing the same problem if pull from wireless-testing? I did not see any iwlagn related log in the log file. But I am pulling from Linus tree and check it out. Thanks Wey -- 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