I'm having a strange issue getting owhttpd to work on a pc-engines WRAP board
(an older x86 AMD geode board) using the std serial port and a LINK. I'm
running
OpenWRT. When I just run
owhttpd -d /dev/ttyS0 --debug
it hangs (see below). But if I then run minicom I can get to the LINK just fine
(e.g. I can type h to get the help). If I then ctrl-a Q out of minicom (exit
without resetting the modem) then the same owhttpd command works great. If I
run
minicom again and exit normally having it reset the modem then owhttpd fails
again. This is 100% reproducible. Any ideas as to what could be up here?
Linux version 3.3.8 (blogic@buildserver-1) (gcc version 4.6.3 20120201
(prerelease) (Linaro GCC 4.6-2012.02) ) #1 Tue Nov 13 14:26:41 UTC 2012
root@OpenWrt:~# owhttpd --version
owhttpd version:
2.8p13
libow version:
2.8p13
Here's the output when owhttpd fails:
root@OpenWrt:~# owhttpd -d /dev/ttyS0 --debug
CONNECT: owhttpd.c:main(75) owhttpd will use an ephemeral port
DEBUG: ow_daemon.c:EnterBackground(166) main thread id = 3078366864
CONNECT: ow_avahi_link.c:OW_Load_avahi_library(72) No Avahi support. Library
libavahi-client couldn't be loaded
CONNECT: ow_dnssd.c:OW_Load_dnssd_library(136) Zeroconf/Bonjour is disabled
since dnssd library isn't found
CALL: ow_parsename.c:FS_ParsedName_anywhere(95) path=[]
DEBUG: owlib.c:SetupTemperatureLimits(79) Globals temp limits 0C 100C (for
simulated adapters)
DEBUG: ow_ds9097U.c:DS2480_initialize_repeatedly(267) Attempt #0 to
initialize
the DS9097U
DEBUG: ow_ds9097U.c:DS2480_big_reset_serial(356) Send the initial reset to
the
bus master.
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
CONNECT: ow_tcp_read.c:tcp_read(110) TIMEOUT after 0 bytes
DEBUG: ow_ds9097U.c:DS2480_configuration_read(434) wrong response (B7 not 00)
DEBUG: ow_ds9097U.c:DS2480_set_baud_control(449) Failed first attempt at
resetting baud rate of bus master /dev/ttyS0
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
CONNECT: ow_tcp_read.c:tcp_read(110) TIMEOUT after 0 bytes
DEBUG: ow_ds9097U.c:DS2480_configuration_read(434) wrong response (B7 not 00)
DEBUG: ow_ds9097U.c:DS2480_set_baud_control(454) Failed second attempt at
resetting baud rate of bus master /dev/ttyS0
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
CONNECT: ow_tcp_read.c:tcp_read(110) TIMEOUT after 0 bytes
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
CONNECT: ow_tcp_read.c:tcp_read(110) TIMEOUT after 0 bytes
DEBUG: ow_ds9097U.c:DS2480_configuration_read(434) wrong response (B7 not 00)
DEBUG: ow_ds9097U.c:DS2480_set_baud_control(449) Failed first attempt at
resetting baud rate of bus master /dev/ttyS0
...
Here's the output when it succeeds:
root@OpenWrt:~# owhttpd -d /dev/ttyS0 --debug
CONNECT: owhttpd.c:main(75) owhttpd will use an ephemeral port
DEBUG: ow_daemon.c:EnterBackground(166) main thread id = 3077707408
CONNECT: ow_avahi_link.c:OW_Load_avahi_library(72) No Avahi support. Library
libavahi-client couldn't be loaded
CONNECT: ow_dnssd.c:OW_Load_dnssd_library(136) Zeroconf/Bonjour is disabled
since dnssd library isn't found
CALL: ow_parsename.c:FS_ParsedName_anywhere(95) path=[]
DEBUG: owlib.c:SetupTemperatureLimits(79) Globals temp limits 0C 100C (for
simulated adapters)
DEBUG: ow_ds9097U.c:DS2480_initialize_repeatedly(267) Attempt #0 to
initialize
the DS9097U
DEBUG: ow_ds9097U.c:DS2480_big_reset_serial(356) Send the initial reset to
the
bus master.
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
DEBUG: ow_tcp_read.c:tcp_read(64) attempt 1 bytes Time: 5.000000 seconds
DEBUG: ow_tcp_read.c:tcp_read(114) read: 1 - 0 = 1
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