Am Mittwoch, 10. Mai 2006 23:24 schrieb Gilles Chanteperdrix: > Niklaus Giger wrote: > > Hi > > > > I compiled and started my test with a recent xenomai/trunk (revision > > 1068). I booted into single user mode, did a "modprobe xeno_vxworks" (no > > problem) and then a "rmmod xeno_vxworks" and got as response on my > > PowerBook only "Kernel panic: -not syncing: Aiee, killing interrupt > > handler". > > > > > > Also when I try to run ksrc/skins/vxworks/demos/satch (after a make std) > > I get the following info (using gdb): > > (gdb) run > > Starting > > program: > > /mnt/data.ng/hcu/kernel/xenomai-head/ksrc/skins/vxworks/demos/satch > > [Thread debugging using libthread_db enabled] > > [New Thread 805415264 (LWP 4168)] > > [New Thread 805434592 (LWP 4171)] > > [New Thread 805450976 (LWP 4172)] > > > > Program received signal SIGSEGV, Segmentation fault. > > [Switching to Thread 805434592 (LWP 4171)] > > 0x0fe76094 in vfprintf () from /lib/tls/libc.so.6 > > (gdb) info stack > > #0 0x0fe76094 in vfprintf () from /lib/tls/libc.so.6 > > #1 0x0fe7e760 in printf () from /lib/tls/libc.so.6 > > #2 0x10001a6c in consumer_task (a0=269287424, a1=268894208, > > a2=269477288, a3=0, a4=0, a5=0, a6=269482760, a7=805474048, > > a8=2144297840, a9=268064096) at satch.c:99 > > #3 0x0ffa7714 in wind_task_trampoline (cookie=0x7fcf632c) > > at /mnt/data.ng/hcu/kernel/xenomai-head/src/skins/vxworks/taskLib.c:99 > > #4 0x0ffd08e8 in start_thread () from /lib/tls/libpthread.so.0 > > #5 0x0ffd08e8 in start_thread () from /lib/tls/libpthread.so.0 > > Previous frame inner to this frame (corrupt stack?) > > I observed such an error when the stack size is to small, I guess > vfprintf uses alloca. This fixed my problem. Task crashes with 18 kB stack, but not with 20 kB. Therefore I propose 24 kB to have some margine for the future.
Please apply the following patch: Index: ksrc/skins/vxworks/demos/satch.c =================================================================== --- ksrc/skins/vxworks/demos/satch.c (Revision 1068) +++ ksrc/skins/vxworks/demos/satch.c (Arbeitskopie) @@ -21,10 +21,10 @@ #include <vxworks/vxworks.h> #define CONSUMER_TASK_PRI 115 -#define CONSUMER_STACK_SIZE 8192 +#define CONSUMER_STACK_SIZE 24*1024 #define PRODUCER_TASK_PRI 110 -#define PRODUCER_STACK_SIZE 8192 +#define PRODUCER_STACK_SIZE 24*1024 #define CONSUMER_WAIT 150 #define PRODUCER_TRIG 40 Thanks in advance. Best regards -- Niklaus Giger _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
