On 02/07/2017 03:19 PM, [email protected] wrote: > Just now when I compiling xenomai, removed "--enable-pshared" > configuration option. My demo is normal finally, and print out third > sentence "enter func ..." without segmentaion fault.
I believe that you are not using the right code. Did you pull the code from the stable-3.0.x branch as mentioned earlier? If you did so, you should see this output when passing the --version switch to your program: based on Xenomai/mercury v3.0.3 -- #00e3d01 (2017-01-27 10:16:11 +0100) > Although the question is solved temporarily , but still don't know the > reason. So I'm still worried about my system environment have some problems. > > Thanks again, best regards. > > > 发自网易邮箱大师 > > 在2017年02月07日 14:18，[email protected] > <mailto:[email protected]> 写道： > Thank you for help. > I had git clone git://git.xenomai.org/xenomai-3.git, compile and > install it with： > ./scripts/bootstrap > ../xenomai-3/configure --with-core=mercury --enable-smp > --enable-pshared --enable-debug=full > make install > Then run my demo, but the result is the same as before ： > > ---------------------------------------------------------------------------------------------------------- > 0"002.570| WARNING: [main] Xenomai compiled with full debug enabled, > very high latencies expected > [--enable-debug=full] > enter func ... > enter func ... > rt_task_create: > ../../../xenomai-3/lib/copperplate/heapobj-pshared.c:452: > alloc_block: Assertion `0' failed. > Aborted > > ---------------------------------------------------------------------------------------------------------- > Yesterday, I add some printf to alloc_block() of heapobj-pshared.c. > I found that segmentaion fault occur when run to the > line 455 "++extent->pagemap[pgnum].bcount;" . At this time the value > of "heap->buckets[ilog].freelist" is very big. > > Now I think whether my xenomai > configuration or system environment have something wrong. > Besides, my system(x86_64bit) run in a 8 cores Oracle virtual > machine, the host cpu is Inter(R) xeon(R) CPU E5-2630 v4 @ 2.20GHz. > I don't know whether these information is useful. > > Thanks in advance, best regards. > > > > At 2017-02-06 21:50:13, "Philippe Gerum" <[email protected] > <mailto:[email protected]>> wrote: > >On 02/06/2017 02:30 AM, [email protected] <mailto:[email protected]> > wrote: > >> System configuration: > >> debian-8.6, 3.18.46-rt50 > >> Xenomai/mercury v3.0.3 > >> Build args: --with-core=mercury --enable-smp --enable-pshared > >> > >> Now I am need help. Thanks. > >> > >> > >> -------- Forwarding messages -------- > >> From: "[email protected] <mailto:[email protected]>" > <[email protected] <mailto:[email protected]>> > >> Date: 2017-02-04 12:04:15 > >> To: [email protected] <mailto:[email protected]> > >> Subject: some API about RT_TASK occur Segmentation fault > >> Hi > >> During using API about RT_TASK I found some doubt. > >> 1) rt_task_inquire(RT_TASK * task, RT_TASK_INFO * info ), if info is > >> NULL will occur Segmentation fault, but in API reference this is valid. > >> > http://www.xenomai.org/documentation/xenomai-3/html/xeno3prm/group__alchemy__task.html#ga53bad6acf5496f8008e594954507dce8 > >> > >> 2) After main task called rt_task_shadow(), program will create other > >> tasks depend on request, but when create second task will occur > >> Segmentation fault. > >> Now main task don't call rt_task_shadow(), program will OK. I don't > >> know why. > >> > >> 3) I write a demo which create the same task three times as follows: > >> #include <stdio.h> > >> #include <unistd.h> > >> #include <alchemy/task.h> > >> RT_TASK task1; > >> void func(void *arg) > >> { > >> printf("enter func ...\n"); > >> } > >> int main() > >> { > >> rt_task_spawn(&task1, "task1", 0, 80, 0, func, NULL); > >> sleep(1); > >> rt_task_spawn(&task1, "task1", 0, 80, 0, func, NULL); > >> sleep(1); > >> rt_task_spawn(&task1, "task1", 0, 80, 0, func, NULL); > >> //rt_task_delete(&task1); > >> return 0; > >> } > >> > >> When the third time create , program will occur Segmentation fault. > >> > > > >This bug was fixed in the stable branch some time ago: > >git://git.xenomai.org/xenomai-3.git, branch stable-3.0.x > > > >-- > >Philippe. > > > > > -- Philippe. _______________________________________________ Xenomai mailing list [email protected] https://xenomai.org/mailman/listinfo/xenomai
