It tried to reconnect a few times, failing each time. Then, after a couple of minutes, the connection succeeded.

Regards, Mark

On 24 Dec 2017, at 2:53 PM, Mark Webb-Johnson <mark@webb-johnson.net> wrote:

I found this patch from Espressif:

https://github.com/espressif/esp-idf/pull/1100/commits/6dd48547adbdaf89e43b680dc027e5aa786d9c0e

They had only applied it to ‘master’, and not the ‘2.1’ branch we use. It seems to resolve the problem.

I also made some changes to the ovms_server_v2 to try to tear down the connection _before_ the ppp link goes down (but I now think these are unnecessary, although probably beneficial).

Can you guys try updating both your ESP IDF (based on open vehicles 2.1 repo) and ovms v3 firmware. See if it is more reliable? I will leave mine running now, to see if there is any improvement for long-lived connections.

Regards, Mark.

On 19 Dec 2017, at 5:14 AM, Greg D. <gregd2350@gmail.com> wrote:

Hi folks,

I left my module running with the modem connected (WiFi client off) for
a couple of days. V2 server configured and connected, but the phone
client was not running. The module was sitting on my desk (not in a
car), powered from the high-power USB port on my laptop. It was
blinking happily last night when I went to bed, but dark this morning.
Apparently had crashed and rebooted during the night.

Here's the trace-back from the screen. Looks like a link drop was the
trigger, or perhaps the result of something else.

Hope this helps,

Greg

I (129194054) ovms-server-v2: Send MP-0
S47,K,0,0,stopped,standard,0,0,0,0,0,0,0,21,0,0,0,0,0.00,0,0,0,0,-1,0,0,0,0,0,0,0,0.00,0.00,0
I (129194064) ovms-server-v2: Send MP-0
D0,0,5,0,0,0,0,0,0,129191,0,0,0,0,0,0,0,0,0,0
I (129795064) ovms-server-v2: Send MP-0
S47,K,0,0,stopped,standard,0,0,0,0,0,0,0,21,0,0,0,0,0.00,0,0,0,0,-1,0,0,0,0,0,0,0,0.00,0.00,0
I (129795074) ovms-server-v2: Send MP-0
D0,0,5,0,0,0,0,0,0,129792,0,0,0,0,0,0,0,0,0,0
I (130030624) simcom: CREG Network Registration: Searching
I (130031414) simcom: Lost network connection (NetworkRegistration in
NetMode)
I (130031414) simcom: State: Enter NetLosGuru Meditation Error of type
LoadProhibited occurred on core 0. Exception was unhandled.
Register
dump:

PC      : 0x4018f959 PS      : 0x00060830 A0      : 0x8018a5d8
A1      :
0x3ffd80f0

0x4018f959: ip4_route at
/home/greg/esp/esp-idf/components/lwip/core/ipv4/ip4.c:223 (discriminator 2)

A2      : 0x0000f01d A3      : 0x00000000 A4      : 0x00000000
A5      : 0xfffffffc
A6      : 0x3fff2c8c A7      : 0x00000014 A8      : 0x00000000
A9      : 0x00000001
A10     : 0x502b34ca A11     : 0x00000001 A12     : 0x3f42ea90
A13     : 0x3f42eaa4
A14     : 0x3ffda120 A15     : 0x00000000 SAR     : 0x0000000b
EXCCAUSE: 0x0000001c
EXCVADDR: 0x0000f0d2 LBEG    : 0x4000c2e0 LEND    : 0x4000c2f6
LCOUNT : 0xffffffff

Backtrace: 0x4018f959:0x3ffd80f0 0x4018a5d5:0x3ffd8110
0x4018d3eb:0x3ffd8150 0x4018d40d:0x3ffd8180 0x4018d4ae:0x3ffd81a0
0x4018d90c:0x3ffd81c0 0x4018e46a:0x3ffd81e0 0x4018e4ab:0x3ffd8200
0x40196261:0x3ffd8220 0x4019882d:0x3ffd8240 0x40198874:0x3ffd8260
0x40199e9d:0x3ffd8280 0x40198764:0x3ffd82a0 0x4019a8f2:0x3ffd82c0
0x4019a92e:0x3ffd82e0 0x40196f25:0x3ffd8300 0x40199e9d:0x3ffd8320
0x40197e68:0x3ffd8340 0x40196149:0x3ffd8360 0x401b470c:0x3ffd8380
0x401825ad:0x3ffd83a0
0x4018f959: ip4_route at
/home/greg/esp/esp-idf/components/lwip/core/ipv4/ip4.c:223 (discriminator 2)

0x4018a5d5: tcp_rst at
/home/greg/esp/esp-idf/components/lwip/core/tcp_out.c:1336 (discriminator 4)

0x4018d3eb: tcp_abandon at
/home/greg/esp/esp-idf/components/lwip/core/tcp.c:1630

0x4018d40d: tcp_abort at
/home/greg/esp/esp-idf/components/lwip/core/tcp.c:1630

0x4018d4ae: tcp_netif_ipv4_addr_changed_pcblist at
/home/greg/esp/esp-idf/components/lwip/core/tcp.c:1630

0x4018d90c: tcp_netif_ipv4_addr_changed at
/home/greg/esp/esp-idf/components/lwip/core/tcp.c:1947

0x4018e46a: netif_set_ipaddr at
/home/greg/esp/esp-idf/components/lwip/core/netif.c:452

0x4018e4ab: netif_set_addr at
/home/greg/esp/esp-idf/components/lwip/core/netif.c:330

0x40196261: cifaddr at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/ppp.c:704

0x4019882d: ipcp_clear_addrs at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/ipcp.c:2192

0x40198874: ipcp_down at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/ipcp.c:2156

0x40199e9d: fsm_lowerdown at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/fsm.c:146

0x40198764: ipcp_lowerdown at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/ipcp.c:687

0x4019a8f2: upper_layers_down at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/auth.c:715

0x4019a92e: link_down at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/auth.c:701

0x40196f25: lcp_down at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/lcp.c:2341

0x40199e9d: fsm_lowerdown at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/fsm.c:146

0x40197e68: lcp_lowerdown at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/lcp.c:485

0x40196149: ppp_close at
/home/greg/esp/esp-idf/components/lwip/netif/ppp/ppp.c:704

0x401b470c: pppapi_do_ppp_close at
/home/greg/esp/esp-idf/components/lwip/api/pppapi.c:355

0x401825ad: tcpip_thread at
/home/greg/esp/esp-idf/components/lwip/api/tcpip.c:474

Rebooting...

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