Hi all:
i have ported a c based application which is a profinet network stack and it
was running ok in common x86 linux platform as a regular process except some
realtime issue.
For the realtime issue,i have to ported to a xenomai application
The profinet application using the posix interface so i use xenomai 3.1's posix
skin for the porting.
But after i had ported it to the xenomai-posix one ,i found it could receive
network message but it failed to send the message out. (by comparison to the
regular one using
"watch -n 0.1 ifconfig eth0"). It seemed that some thread's blocking and i did
not known how to investegate the issue.
The /proc/xenomai/sched/stat was like this:
CPU PID MSW CSW XSC PF STAT %CPU NAME
0 0 0 0 0 0 00218000 100.0 [ROOT/0]
1 0 0 0 0 0 00218000 100.0 [ROOT/1]
2 0 0 119332 0 0 00218000 100.0 [ROOT/2]
3 0 0 174171 0 0 00218000 99.8 [ROOT/3]
3 1721 14 2749 2930 0 00248044 0.0 dksw_linux
3 1723 2 4 7 0 00242042 0.0
Task_ASYNC_Timer
3 1724 2 4 4 0 00242042 0.0
Task_OS_Timer
3 1725 4 23 69 0 00242042 0.0
PrintRS232PostTask
3 1726 2 3 3 0 00242042 0.0 Pnio_NvData
3 1727 3 5453 5448 0 0024a044 0.0 Pnio_Idle
3 1728 7 27 188 0 0024a0c0 0.0 MainAppl
3 1729 2 135222 676095 0 0024a044 0.1 Pnio_CycleIO
3 1730 3463 3463 3464 0 0024a0c0 0.0 sniff_packet
3 1731 11 27219 27448 0 0024a044 0.0 t_IDL
3 1732 6 84 215 0 0024a042 0.0 t_APP
3 1733 459 4661 8961 0 0024a042 0.0 t_EDD
3 1734 2 112 166 0 0024a042 0.0 t_ORG
3 1735 30 1071 7346 0 0024a042 0.0 t_PNO
3 1736 3 2465 5339 0 0024a042 0.0 t_TCP
3 1737 2 26 42 0 0024a042 0.0 t_POF
3 1738 2 10 10 0 00242042 0.0 t_REM
3 1739 3 53 85 0 0024a042 0.0 t_STP
3 1740 2 5 30 0 0024a042 0.0
Pnio_PnpbPost
3 1741 2 25 138 0 0024a042 0.0 Pnio_Pnpb
0 0 0 165200 0 0 00000000 0.0 [IRQ2305:
[timer]]
1 0 0 12551 0 0 00000000 0.0 [IRQ2305:
[timer]]
2 0 0 893793 0 0 00000000 0.0 [IRQ2305:
[timer]]
3 0 0 2791299 0 0 00000000 0.1 [IRQ2305:
[timer]]
the /proc/xenomai/sched/thread was like this:
CPU PID CLASS TYPE PRI TIMEOUT STAT NAME
0 0 idle core -1 - R [ROOT/0]
1 0 idle core -1 - R [ROOT/1]
2 0 idle core -1 - R [ROOT/2]
3 0 idle core -1 - R [ROOT/3]
3 1721 rt cobalt 19 698ms369us D dksw_linux
3 1723 rt cobalt 20 - Wr Task_ASYNC_Timer
3 1724 rt cobalt 20 - Wr Task_OS_Timer
3 1725 rt cobalt 6 - Wr PrintRS232PostTask
3 1726 rt cobalt 5 - Wr Pnio_NvData
3 1727 rt cobalt 1 461ms50us Dr Pnio_Idle
3 1728 rt cobalt 4 - Xr MainAppl
3 1729 rt cobalt 19 8ms828us Dr Pnio_CycleIO
3 1730 rt cobalt 19 - Xr sniff_packet
3 1731 rt cobalt 11 98ms679us Dr t_IDL
3 1732 rt cobalt 10 - Wr t_APP
3 1733 rt cobalt 18 - Wr t_EDD
3 1734 rt cobalt 17 - Wr t_ORG
3 1735 rt cobalt 16 - Wr t_PNO
3 1736 rt cobalt 15 - Wr t_TCP
3 1737 rt cobalt 14 - Wr t_POF
3 1738 rt cobalt 13 - Wr t_REM
3 1739 rt cobalt 12 - Wr t_STP
3 1740 rt cobalt 10 - Wr Pnio_PnpbPost
3 1741 rt cobalt 9 - Wr Pnio_Pnpb
the dmesg about xenomai:
[ 0.000000] Linux version 3.18.20-xenomai-3.1-20200417-02 (root@cpac) (gcc
version 5.5.0 20171010 (Ubuntu 5.5.0-12ubuntu1) ) #1 SMP Fri Apr 17 16:23:12
HKT 2020
[ 0.000000] Kernel command line:
BOOT_IMAGE=/vmlinuz-3.18.20-xenomai-3.1-20200417-02
root=UUID=2851ab9b-1766-41a0-b882-3caa9a975bf6 ro isolcpus=1 quiet splash text
vt.handoff=7
[ 1.257922] [Xenomai] scheduling class idle registered.
[ 1.257926] [Xenomai] scheduling class rt registered.
[ 1.257969] [Xenomai] SMI-enabled chipset found, but SMI workaround disabled
[ 1.257969] (see xenomai.smi parameter). You might encounter
[ 1.258005] I-pipe: head domain Xenomai registered.
[ 1.260837] [Xenomai] Cobalt v3.1 [DEBUG]
[ 1.371562] usb usb1: Manufacturer: Linux 3.18.20-xenomai-3.1-20200417-02
ehci_hcd
my application cmake xenomai compiling setting:
execute_process(COMMAND xeno-config --posix --cflags OUTPUT_VARIABLE
XENO_CFLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND xeno-config --posix --ldflags OUTPUT_VARIABLE
XENO_LDFLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${XENO_CFLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${XENO_LDFLAGS}")
my hardware platform and os is
Intel(R) Celeron(R) CPU J1900 @ 1.99GHz i686
Ubuntu 14.04 3.18.20
can any one help me to find out why this posix porting application behaviour
abnormaly comparing to the regular one using the above data.
what measures should i take to make sure it has same thread running behaviour
after poting to the xenomai-posix one.
Best Regards
Huang Mianbo
电话：+8613682612959
