On Wed, 2011-10-19 at 04:01 -0700, Toralf Förster wrote: > wwguy wrote at 21:30:47 > > When the problem happen, could you please dump the tx_queue status in > > debugfs and send us the information > > > > In order to dump the the tx_queue, please do the following > > 1. make sure you compile your kernel with CONFIG_IWLWIFI_DEBUGFS=y > > 2. unload and reload the "iwlagn" module > > 3. cd to /sys/kernel/debug/ieee80211/phyX/iwlwifi/debug (phX: "X" based > > on your system) > > 4. "$sudo cat tx_queue" to show the current tx queue status > > There was an outage 15 min ago, however the network was automatically restarted, therefore not sure whether it is related to the initial reported problem > or not : > > tfoerste@n22 ~/tmp $ sudo cat /sys/kernel/debug/ieee80211/phy0/iwlagn/debug/tx_queue > hwq 00: read=182 write=182 stop=0 swq_id=0x00 (ac 0/hwq 0) > stop-count: 0 > hwq 01: read=0 write=0 stop=0 swq_id=0x05 (ac 1/hwq 1) > stop-count: 0 > hwq 02: read=137 write=137 stop=0 swq_id=0x0a (ac 2/hwq 2) > stop-count: 0 > hwq 03: read=7 write=7 stop=0 swq_id=0x0f (ac 3/hwq 3) > stop-count: 0 > hwq 04: read=116 write=116 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 05: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 06: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 07: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 08: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 09: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 10: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 11: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 12: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 13: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 14: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 15: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 16: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 17: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 18: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 19: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) hmm, all the queues looks ok, did you see the problem when you dump the tx_queue? > > /var/log/messages gave : > > 2011-10-19T12:30:01.000+02:00 n22 cron[8068]: (root) CMD (/usr/lib/sa/sa2 -A >/dev/null) > 2011-10-19T12:33:31.000+02:00 n22 dhcpcd[2755]: wlan0: carrier lost > 2011-10-19T12:33:31.494+02:00 n22 kernel: cfg80211: Calling CRDA for country: DE > 2011-10-19T12:33:31.000+02:00 n22 wpa_cli: interface wlan0 DISCONNECTED > 2011-10-19T12:33:31.000+02:00 n22 wpa_cli: executing 'false /etc/init.d/net.wlan0 --quiet stop' failed > 2011-10-19T12:33:33.000+02:00 n22 ntpd[2924]: Deleting interface #2 wlan0, 9.155.188.41#123, interface stats: received=103, sent=123, > dropped=0, active_time=2813 secs > 2011-10-19T12:33:33.000+02:00 n22 ntpd[2924]: 213.154.229.24 interface 9.155.188.41 -> (none) > 2011-10-19T12:33:33.000+02:00 n22 ntpd[2924]: 193.110.251.50 interface 9.155.188.41 -> (none) > 2011-10-19T12:33:33.000+02:00 n22 ntpd[2924]: 95.140.150.140 interface 9.155.188.41 -> (none) > 2011-10-19T12:33:33.000+02:00 n22 ntpd[2924]: 109.75.190.27 interface 9.155.188.41 -> (none) > 2011-10-19T12:33:33.000+02:00 n22 ntpd[2924]: peers refreshed > 2011-10-19T12:33:34.636+02:00 n22 kernel: wlan0: authenticate with 00:21:55:ac:8b:80 (try 1) > 2011-10-19T12:33:34.637+02:00 n22 kernel: wlan0: authenticated > 2011-10-19T12:33:34.639+02:00 n22 kernel: wlan0: waiting for beacon from 00:21:55:ac:8b:80 > 2011-10-19T12:33:34.685+02:00 n22 kernel: wlan0: beacon received > 2011-10-19T12:33:34.689+02:00 n22 kernel: wlan0: associate with 00:21:55:ac:8b:80 (try 1) > 2011-10-19T12:33:34.691+02:00 n22 kernel: wlan0: RX AssocResp from 00:21:55:ac:8b:80 (capab=0x431 status=0 aid=3) > 2011-10-19T12:33:34.691+02:00 n22 kernel: wlan0: associated > 2011-10-19T12:33:34.000+02:00 n22 dhcpcd[2755]: wlan0: carrier acquired > 2011-10-19T12:33:34.000+02:00 n22 wpa_cli: interface wlan0 CONNECTED > 2011-10-19T12:33:34.000+02:00 n22 wpa_cli: executing '/etc/init.d/net.wlan0 --quiet start' failed > 2011-10-19T12:33:34.000+02:00 n22 dhcpcd[2755]: wlan0: rebinding lease of 9.155.188.41 > 2011-10-19T12:33:39.000+02:00 n22 dhcpcd[2755]: wlan0: acknowledged 9.155.188.41 from 9.64.163.10 > 2011-10-19T12:33:39.000+02:00 n22 dhcpcd[2755]: wlan0: checking for 9.155.188.41 > 2011-10-19T12:33:44.000+02:00 n22 dhcpcd[2755]: wlan0: leased 9.155.188.41 for 14400 seconds > 2011-10-19T12:33:44.000+02:00 n22 dnsmasq[2334]: reading /etc/resolv.conf > 2011-10-19T12:33:44.000+02:00 n22 dnsmasq[2334]: ignoring nameserver 127.0.0.1 - local interface > 2011-10-19T12:33:46.000+02:00 n22 ntpd[2924]: Listen normally on 4 wlan0 9.155.188.41 UDP 123 > 2011-10-19T12:33:46.000+02:00 n22 ntpd[2924]: peers refreshed > 2011-10-19T12:35:01.000+02:00 n22 cron[8662]: (root) CMD (/usr/lib/sa/sa1 60 5 >/dev/null) > 2011-10-19T12:40:01.000+02:00 n22 cron[9141]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons ) > 2011-10-19T12:40:01.000+02:00 n22 cron[9142]: (root) CMD (/usr/lib/sa/sa1 60 5 >/dev/null) > 2011-10-19T12:43:01.000+02:00 n22 dnsmasq[2334]: reading /etc/resolv.conf > 2011-10-19T12:43:01.000+02:00 n22 dnsmasq[2334]: using nameserver 9.64.162.21#53 > 2011-10-19T12:43:01.000+02:00 n22 dnsmasq[2334]: using nameserver 9.64.163.21#53 > 2011-10-19T12:43:01.000+02:00 n22 dnsmasq[2334]: ignoring nameserver 127.0.0.1 - local interface > 2011-10-19T12:45:01.000+02:00 n22 cron[9671]: (root) CMD (/usr/lib/sa/sa2 -A >/dev/null) > 2011-10-19T12:45:01.000+02:00 n22 cron[9672]: (root) CMD (/usr/lib/sa/sa1 60 5 >/dev/null) > > After rmmod and modprobe I restarted the network again, here's the output : > > n22 ~ # cat /sys/kernel/debug/ieee80211/phy1/iwlagn/debug/tx_queue > hwq 00: read=2 write=2 stop=0 swq_id=0x00 (ac 0/hwq 0) > stop-count: 0 > hwq 01: read=0 write=0 stop=0 swq_id=0x05 (ac 1/hwq 1) > stop-count: 0 > hwq 02: read=6 write=6 stop=0 swq_id=0x0a (ac 2/hwq 2) > stop-count: 0 > hwq 03: read=0 write=0 stop=0 swq_id=0x0f (ac 3/hwq 3) > stop-count: 0 > hwq 04: read=76 write=76 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 05: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 06: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 07: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 08: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 09: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 10: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 11: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 12: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 13: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 14: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 15: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 16: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 17: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 18: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > hwq 19: read=0 write=0 stop=0 swq_id=0x00 (ac 0/hwq 0) > > also looks ok here 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
