F1C200S
ESP8089除錯紀錄
參考資料：
1. twzy
2. whycan
3. esp8089-spi
4. nano-5.2-tf
關於如下的esp8089 crash問題
# rmmod esp8089-spi.ko [ 80.007618] esp8089_spi: esp_spi_exit [ 80.011553] esp8089_spi: esp_spi_remove [ 80.016011] esp8089_spi: normal byte write data no-busy wait byte 0xff no recv at the first time [ 80.027305] sip_detach, cancel rx_process_work in SIP_RUN [ 80.032885] sip_detach, cancel sendup_work in SIP_RUN [ 80.037979] ------------[ cut here ]------------ [ 80.042737] WARNING: CPU: 0 PID: 101 at kernel/workqueue.c:3031 __flush_work+0x224/0x258 [ 80.050866] Modules linked in: esp8089_spi(O-) [ 80.055428] CPU: 0 PID: 101 Comm: rmmod Tainted: G O 5.2.0 #5 [ 80.062544] Hardware name: Allwinner suniv Family [ 80.067360] [] (unwind_backtrace) from [ ] (show_stack+0x10/0x14) [ 80.075249] [ ] (show_stack) from [ ] (__warn+0xc4/0xf0) [ 80.082238] [ ] (__warn) from [ ] (warn_slowpath_null+0x3c/0x48) [ 80.089893] [ ] (warn_slowpath_null) from [ ] (__flush_work+0x224/0x258) [ 80.098295] [ ] (__flush_work) from [ ] (__cancel_work_timer+0x108/0x1e4) [ 80.106941] [ ] (__cancel_work_timer) from [ ] (sip_detach+0x100/0x200 [esp8089_spi]) [ 80.116717] [ ] (sip_detach [esp8089_spi]) from [ ] (esp_spi_remove+0x5c/0x208 [esp8089_spi]) [ 80.127093] [ ] (esp_spi_remove [esp8089_spi]) from [ ] (spi_drv_remove+0x1c/0x38) [ 80.136394] [ ] (spi_drv_remove) from [ ] (__device_release_driver+0x140/0x1f0) [ 80.145416] [ ] (__device_release_driver) from [ ] (driver_detach+0xac/0xd4) [ 80.154162] [ ] (driver_detach) from [ ] (bus_remove_driver+0x4c/0xa0) [ 80.162537] [ ] (bus_remove_driver) from [ ] (esp_spi_exit+0x30/0xd88 [esp8089_spi]) [ 80.172147] [ ] (esp_spi_exit [esp8089_spi]) from [ ] (sys_delete_module+0x170/0x1e4) [ 80.181624] [ ] (sys_delete_module) from [ ] (ret_fast_syscall+0x0/0x50) [ 80.189995] Exception stack(0xc3241fa8 to 0xc3241ff0) [ 80.195147] 1fa0: 0002fc38 00000000 bea1dcf4 00000880 00000000 bea1de58 [ 80.203425] 1fc0: 0002fc38 00000000 00000002 00000081 000e79d0 00000000 00000000 00000000 [ 80.211644] 1fe0: bea1dcdc bea1dcc0 0002fad0 b6f4e6d8 [ 80.216769] ---[ end trace 2fa11815b209e97a ]--- [ 80.223550] sip_detach, cancel tx_work in SIP_RUN [ 80.228354] esp8089_spi: esp_spi_remove sip detached [ 80.233839] esp8089_spi: esp_spi_remove dealloc mac80211 [ 80.239305] esp8089_spi: esp_spi_remove free dma_buffer [ 80.244754] esp8089_spi: eagle spi remove complete
定位了一下問題, 發現問題是在sendup_work並沒有初始化, 原因是在Makefile裡面定義了RX_SENDUP_SYNC, 所以解法如下
void sip_detach(struct esp_sip *sip)
{
int po;
if(sip == NULL) {
return ;
}
sip_free_init_ctrl_buf(sip);
if(atomic_read(&sip->state) == SIP_RUN) {
sif_disable_target_interrupt(sip->epub);
atomic_set(&sip->state, SIP_STOP);
sif_disable_irq(sip->epub);
dbg("%s, cancel rx_process_work in SIP_RUN\n", __func__);
cancel_work_sync(&sip->rx_process_work);
skb_queue_purge(&sip->rxq);
mutex_destroy(&sip->rx_mtx);
#ifndef RX_SENDUP_SYNC
dbg("%s, cancel sendup_work in SIP_RUN\n", __func__);
cancel_work_sync(&sip->epub->sendup_work);
#endif
P.S. 通過RX_SENDUP_SYNC判斷是否需要cancel sendup_work
重新編譯後, 就可以正常rmmod esp8089-spi.ko
# rmmod esp8089-spi.ko [ 59.506484] esp8089_spi: esp_spi_exit [ 59.510416] esp8089_spi: esp_spi_remove [ 59.514883] esp8089_spi: normal byte write data no-busy wait byte 0xff no recv at the first time [ 59.526156] sip_detach, cancel rx_process_work in SIP_RUN [ 59.533771] sip_detach, cancel tx_work in SIP_RUN [ 59.538574] esp8089_spi: esp_spi_remove sip detached [ 59.544062] esp8089_spi: esp_spi_remove dealloc mac80211 [ 59.549525] esp8089_spi: esp_spi_remove free dma_buffer [ 59.554975] esp8089_spi: eagle spi remove complete
但是, 重新上esp8089-spi.ko, 就會發現之前的資源並沒有被成功釋放, 相較於原本crash, 這又是另一個問題
# insmod esp8089-spi.ko [ 79.450589] esp8089_spi: esp_spi_init [ 79.454554] esp8089_spi: EAGLE DRIVER VER bdf5087c3deb [ 79.459743] request_init_conf: attr_name[crystal_26M_en] [ 79.459762] request_init_conf: attr_name[test_xtal] [ 79.465173] request_init_conf: attr_name[sdio_configure] [ 79.470085] request_init_conf: attr_name[bt_configure] [ 79.475478] request_init_conf: attr_name[bt_protocol] [ 79.480649] request_init_conf: attr_name[dual_ant_configure] [ 79.485780] request_init_conf: attr_name[test_uart_configure] [ 79.491471] request_init_conf: attr_name[share_xtal] [ 79.497288] request_init_conf: attr_name[gpio_wake] [ 79.502327] request_init_conf: attr_name[no_auto_sleep] [ 79.507237] request_init_conf: attr_name[ext_rst] [ 79.512535] request_init_conf: attr_name[wakeup_gpio] [ 79.517277] request_init_conf: attr_name[ate_test] [ 79.522403] request_init_conf: attr_name[speed_suspend] [ 79.527399] esp8089_spi: esp_spi_dummy_probe enter [ 79.537874] sun6i-spi 1c06000.spi: chipselect 0 already in use [ 79.543869] esp8089_spi: FAILED to create slave [ 79.548475] Unable to handle kernel NULL pointer dereference at virtual address 000001a8 [ 79.556682] pgd = b46ba3ec [ 79.559431] [000001a8] *pgd=832e2831, *pte=00000000, *ppte=00000000 [ 79.565808] Internal error: Oops: 17 [#1] ARM [ 79.570194] Modules linked in: esp8089_spi(O+) [last unloaded: esp8089_spi] [ 79.577206] CPU: 0 PID: 102 Comm: insmod Tainted: G O 5.2.0 #5 [ 79.584353] Hardware name: Allwinner suniv Family [ 79.589102] PC is at spi_setup+0x4/0x15c [ 79.593330] LR is at sif_platform_new_device+0x38/0x88 [esp8089_spi] [ 79.599729] pc : [] lr : [ ] psr: 60000013 [ 79.606017] sp : c32dfe4c ip : 00000000 fp : bf03b58c [ 79.611255] r10: bf03b574 r9 : 00000003 r8 : bf03bbf8 [ 79.616497] r7 : c0a397c0 r6 : bf03b0e4 r5 : bf03b534 r4 : bf03bbf4 [ 79.623035] r3 : 00000000 r2 : 00000000 r1 : 60000093 r0 : 00000000 [ 79.629578] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 79.636730] Control: 0005317f Table: 832d0000 DAC: 00000051 [ 79.642503] Process insmod (pid: 102, stack limit = 0xf70a1f18) [ 79.648445] Stack: (0xc32dfe4c to 0xc32e0000) [ 79.652832] fe40: bf03bbf4 bf03b534 bf004340 bf03bbf4 00000000 [ 79.661047] fe60: bf03b0e4 bf0410a8 bf03bb78 bf00e774 bf03c000 bf041000 ffffe000 00000000 [ 79.669260] fe80: c0a397c0 7fffffff 00000000 00000000 00000000 c0102c24 00000000 00044920 [ 79.677474] fea0: 00000000 00000000 00000000 00000000 6e72656b 00006c65 00000000 00000000 [ 79.685687] fec0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 79.693904] fee0: 00000000 dc8cb5ab bf03b9e0 bf03b9e0 c322b200 b6fdfca0 0000017b c016f5d8 [ 79.702120] ff00: 0000017b 7fffffff 00000000 00000003 b6fdfca0 c0171d6c 7fffffff 00000000 [ 79.710335] ff20: 00000003 00000000 00000000 c4876000 00044920 00000000 c4883eba c48b0940 [ 79.718549] ff40: c4876000 00044920 c48ba2e0 c48ba138 c48b4714 0003c000 0003dde0 000062ec [ 79.726764] ff60: 0003efeb 00000000 00000000 00000000 000062dc 00000025 00000026 0000001d [ 79.734977] ff80: 00000000 00000011 00000000 dc8cb5ab d9dcb4f6 00000001 b6fdfca0 c0101208 [ 79.743193] ffa0: c32de000 c0101000 d9dcb4f6 00000001 00000003 b6fdfca0 00000000 bee6bf4d [ 79.751408] ffc0: d9dcb4f6 00000001 b6fdfca0 0000017b 000e79d0 00000000 00000000 00000000 [ 79.759625] ffe0: bee6bdcc bee6bdb0 0002fa5c b6f586d8 20000010 00000003 00000000 00000000 [ 79.768122] [ ] (spi_setup) from [ ] (esp_msg_level+0x0/0xfffd0f1c [esp8089_spi]) [ 79.777241] Code: 00002af8 00002710 c07d5984 e92d4030 (e59031a8) [ 79.783497] ---[ end trace 35e8692b41672902 ]--- Segmentation fault
定位了一下問題, 是在esp_spi_exit()沒有做資源釋放的動作, 改成如下就可以解決
static void __exit esp_spi_exit(void)
{
dbg("(%s) ++\n", __func__);
esp_debugfs_exit();
esp_unregister_early_suspend();
spi_unregister_device(spi);
spi_unregister_driver(&esp_spi_driver);
esp_wakelock_destroy();
dbg("(%s) --\n", __func__);
}
P.S. spi_unregister_device(spi)
不過, 司徒的esp8089是早期的版本, 沒有reset腳位, 目前也沒有特地拉出來
修改後, 執行第2次insmod esp8089-spi.ko已經不會crash了, 不過似乎缺少reset的動作
# insmod esp8089-spi.ko [ 56.044941] (esp_spi_init)++ [ 56.047925] (request_init_conf) crystal_26M_en=1 [ 56.047947] (request_init_conf) test_xtal=0 [ 56.052729] (request_init_conf) sdio_configure=1 [ 56.056957] (request_init_conf) bt_configure=0 [ 56.061600] (request_init_conf) bt_protocol=0 [ 56.066138] (request_init_conf) dual_ant_configure=0 [ 56.070534] (request_init_conf) test_uart_configure=2 [ 56.075581] (request_init_conf) share_xtal=0 [ 56.080666] (request_init_conf) gpio_wake=0 [ 56.085012] (request_init_conf) no_auto_sleep=0 [ 56.089230] (request_init_conf) ext_rst=0 [ 56.093831] (request_init_conf) wakeup_gpio=12 [ 56.097874] (request_init_conf) ate_test=0 [ 56.102388] (request_init_conf) speed_suspend=0 [ 56.107036] (sif_platform_new_device) added spi device 0xc3228c00 [ 56.331811] (esp_spi_init) power up complete [ 56.336285] (esp_spi_probe)++ [ 56.339300] (esp_setup_spi)++ [ 56.342409] (esp_setup_spi)-- [ 56.345418] (sif_spi_protocol_init)++ [ 56.349105] (sif_spi_protocol_init) failed count 0 [ 56.555559] (sif_spi_protocol_init) failed count 1 [ 56.762018] (sif_spi_protocol_init) failed count 2 [ 56.968402] (sif_spi_protocol_init) failed count 3 [ 57.174802] (sif_spi_protocol_init) failed count 4 [ 57.381160] (sif_spi_protocol_init) failed count 5 [ 57.587539] (sif_spi_protocol_init) failed count 6 [ 57.794031] (sif_spi_protocol_init) failed count 7 [ 58.000408] (sif_spi_protocol_init) failed count 8 [ 58.206804] (sif_spi_protocol_init) failed count 9 [ 58.413143] (sif_spi_protocol_init) failed count 10 [ 58.619588] (esp_spi_probe) first error exit [ 58.624038] eagle: probe of spi1.0 failed with error -110 [ 58.629640] (esp_spi_init) sem_timeout = 0 [ 58.633867] (esp_spi_init)-- (errno 0)
第2次insmod失敗的原因是沒有做RESET的動作, 雖然可能可以透過命令做RESET, 不過, ESP8089的使用手冊似乎抓不到, 因此, 司徒最後飛線解決第2次insmod失敗的問題
CHIP_EN腳位如下：
CHIP_EN連接到PE6
接著多次測試後, 驅動都可以正確執行, wlan0也可以正常運作
# rmmod esp8089-spi.ko [ 235.627234] (esp_spi_exit) ++ [ 235.630644] (esp_spi_remove)++ [ 235.635838] sip_detach, cancel rx_process_work in SIP_RUN [ 235.641465] esp_op_remove_interface enter, vif addr ac:d0:74:b8:2d:49, beacon enable 0 [ 235.649660] sip_txq_process skb_len 22 pkt_len 260 blknum 1 [ 235.655465] esp_op_stop [ 235.660157] sip_detach, cancel tx_work in SIP_RUN [ 235.665112] (esp_spi_remove) sip detached [ 235.669563] (esp_spi_remove) dealloc mac80211 [ 235.674095] (esp_spi_remove) free dma_buffer [ 235.678420] (esp_spi_remove)-- [ 235.681866] (esp_spi_exit) -- # insmod esp8089-spi.ko [ 238.117040] (esp_spi_init)++ [ 238.120026] (request_init_conf) crystal_26M_en=1 [ 238.120049] (request_init_conf) test_xtal=0 [ 238.124831] (request_init_conf) sdio_configure=1 [ 238.129059] (request_init_conf) bt_configure=0 [ 238.133765] (request_init_conf) bt_protocol=0 [ 238.138249] (request_init_conf) dual_ant_configure=0 [ 238.142681] (request_init_conf) test_uart_configure=2 [ 238.147680] (request_init_conf) share_xtal=0 [ 238.152802] (request_init_conf) gpio_wake=0 [ 238.157107] (request_init_conf) no_auto_sleep=0 [ 238.161318] (request_init_conf) ext_rst=0 [ 238.165917] (request_init_conf) wakeup_gpio=12 [ 238.169962] (request_init_conf) ate_test=0 [ 238.174479] (request_init_conf) speed_suspend=0 [ 238.442136] (sif_platform_new_device) added spi device 0xc3228c00 [ 238.671606] (esp_spi_init) power up complete [ 238.676079] (esp_spi_probe)++ [ 238.679094] (esp_setup_spi)++ [ 238.682200] (esp_setup_spi)-- [ 238.685211] (sif_spi_protocol_init)++ [ 238.688901] (sif_spi_protocol_init) failed count 0 [ 238.895437] (sif_spi_protocol_init) failed count 1 [ 239.101828] (sif_spi_protocol_init) failed count 2 [ 239.308199] (sif_spi_protocol_init) rx: 0xff, 0xff, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 239.816383] (sif_spi_protocol_init) rx: 0xff, 0xff, 0x01, 0x10, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff [ 240.324926] (sif_spi_protocol_init) rx: 0xff, 0xff, 0x00, 0x90, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff [ 240.833308] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x02, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 241.341498] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x03, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 241.850059] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x02, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 242.358415] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x03, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 242.866623] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 243.375170] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x25, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 243.883519] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x10, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 244.391780] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x12, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 244.900285] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 245.408637] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x06, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 245.916879] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 246.425426] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 246.934229] (sif_spi_protocol_init) rx: 0xff, 0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff [ 247.442171] (sif_spi_protocol_init)-- [ 247.448635] (check_target_id) SLC data 0x12102500, ID 0x00000600
修改部份
static int __init esp_spi_init(void)
{
int err=0;
int edf_ret=0;
bool powerup=false;
long long sem_timeout=0;
dbg("(%s)++\n", __func__);
edf_ret = esp_debugfs_init();
request_init_conf();
esp_wakelock_init();
esp_wake_lock();
if((err = gpio_request(ESP_RST_PIN, "esp_rst")) != 0) {
dbg("(%s) failed to request reset gpio\n", __func__);
return err;
}
gpio_direction_output(ESP_RST_PIN, 1);
gpio_set_value(ESP_RST_PIN, 0);
msleep(250);
gpio_set_value(ESP_RST_PIN, 1);
spi = sif_platform_new_device();
powerup = true;
if(!powerup) {
dbg("(%s) failed to power up\n", __func__);
err = -ENODEV;
goto _fail;
}
dbg("(%s) power up complete\n", __func__);
sif_sdio_state = ESP_SDIO_STATE_FIRST_INIT;
sema_init(&esp_powerup_sem, 0);
spi_register_driver(&esp_spi_driver);
sem_timeout = down_timeout(&esp_powerup_sem, msecs_to_jiffies(ESP_WAIT_UP_TIME_MS));
dbg("(%s) sem_timeout = %lld\n", __func__, sem_timeout);
if(sem_timeout == 0 && sif_get_ate_config() == 0) {
if(sif_sdio_state == ESP_SDIO_STATE_FIRST_NORMAL_EXIT) {
spi_unregister_driver(&esp_spi_driver);
msleep(100);
sif_sdio_state = ESP_SDIO_STATE_SECOND_INIT;
spi_register_driver(&esp_spi_driver);
}
}
esp_register_early_suspend();
esp_wake_unlock();
printk("(%s)-- (errno %d)\n", __func__, err);
return err;
_fail:
esp_wake_unlock();
esp_wakelock_destroy();
printk("(%s)-- (errno %d)\n", __func__, err);
return err;
}
static void __exit esp_spi_exit(void)
{
dbg("(%s) ++\n", __func__);
esp_debugfs_exit();
esp_unregister_early_suspend();
spi_unregister_device(spi);
spi_unregister_driver(&esp_spi_driver);
esp_wakelock_destroy();
gpio_free(ESP_RST_PIN);
dbg("(%s) --\n", __func__);
}
不知為何ESP8089無法搜尋到家裡的AP，司徒陸續找個幾個裝置後，終於從倉庫找到可以連線的裝置
目前司徒測試了一下ping以及wget下載比較大量的檔案，沒有出線斷線問題
# wget ftp.gnu.org/gnu/gcc/gcc-3.0.3.tar.gz Connecting to ftp.gnu.org (209.51.188.20:80) saving to 'gcc-3.0.3.tar.gz' gcc-3.0.3.tar.gz 100% |********************************| 17.5M 0:00:00 ETA 'gcc-3.0.3.tar.gz' saved # wget ftp.gnu.org/gnu/gcc/gcc-3.0.4.tar.gz Connecting to ftp.gnu.org (209.51.188.20:80) saving to 'gcc-3.0.4.tar.gz' gcc-3.0.4.tar.gz 100% |********************************| 17.5M 0:00:00 ETA 'gcc-3.0.4.tar.gz' saved # ping 8.8.8.8 ping: socket: Address family not supported by protocol PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 64 bytes from 8.8.8.8: icmp_seq=1 ttl=115 time=1034 ms 64 bytes from 8.8.8.8: icmp_seq=2 ttl=115 time=1009 ms 64 bytes from 8.8.8.8: icmp_seq=3 ttl=115 time=1009 ms 64 bytes from 8.8.8.8: icmp_seq=4 ttl=115 time=1008 ms 64 bytes from 8.8.8.8: icmp_seq=5 ttl=115 time=1000 ms 64 bytes from 8.8.8.8: icmp_seq=6 ttl=115 time=1040 ms 64 bytes from 8.8.8.8: icmp_seq=7 ttl=115 time=1009 ms 64 bytes from 8.8.8.8: icmp_seq=8 ttl=115 time=1008 ms 64 bytes from 8.8.8.8: icmp_seq=9 ttl=115 time=1008 ms 64 bytes from 8.8.8.8: icmp_seq=10 ttl=115 time=1005 ms ^C --- 8.8.8.8 ping statistics --- 11 packets transmitted, 10 received, 9.09091% packet loss, time 0ms rtt min/avg/max/mdev = 1000.429/1013.056/1040.108/12.232 ms, pipe 2
司徒目前部屬Nginx後，還是無法重現斷線問題，因此，修復的部份主要是Crash的問題
Welcome to VeganOS vegan login: root # cd /boot/ # insmod esp8089-spi.ko [ 13.652674] esp8089_spi: loading out-of-tree module taints kernel. [ 22.848024] random: crng init done # ifconfig wlan0 up # wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf Successfully initialized wpa_supplicant rfkill: Cannot open RFKILL control device [ 60.611010] wlan0: authenticate with a4:e4:b8:70:01:7b [ 60.616609] wlan0: send auth to a4:e4:b8:70:01:7b (try 1/3) [ 60.831775] wlan0: send auth to a4:e4:b8:70:01:7b (try 2/3) [ 60.841999] wlan0: authenticated [ 60.851734] wlan0: associate with a4:e4:b8:70:01:7b (try 1/3) [ 61.061740] wlan0: associate with a4:e4:b8:70:01:7b (try 2/3) [ 61.072413] wlan0: RX AssocResp from a4:e4:b8:70:01:7b (capab=0x431 status=0 aid=1) [ 61.080298] wlan0: AP has invalid WMM params (AIFSN=1 for ACI 2), will use 2 [ 61.087501] wlan0: AP has invalid WMM params (AIFSN=1 for ACI 3), will use 2 [ 61.094765] wlan0: associated # udhcpc -i wlan0 udhcpc: started, v1.33.1 udhcpc: sending discover udhcpc: sending select for 192.168.0.2 udhcpc: lease of 192.168.0.2 obtained, lease time 7200 deleting routers adding dns 192.168.176.251 adding dns 192.168.176.252 adding dns 192.168.176.253 adding dns 192.168.176.254 # mkdir /tmp/logs # /usr/nginx/sbin/nginx -c /usr/nginx/conf/nginx.conf -p /tmp #