* [Xenomai] Fw:some API about RT_TASK occur Segmentation fault
@ 2017-02-06 1:30 dreamtale90
2017-02-06 13:50 ` Philippe Gerum
0 siblings, 1 reply; 6+ messages in thread
From: dreamtale90 @ 2017-02-06 1:30 UTC (permalink / raw)
To: xenomai, rpm
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: "dreamtale90@163.com" <dreamtale90@163.com>
Date: 2017-02-04 12:04:15
To: xenomai@xenomai.org
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.
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [Xenomai] Fw:some API about RT_TASK occur Segmentation fault 2017-02-06 1:30 [Xenomai] Fw:some API about RT_TASK occur Segmentation fault dreamtale90 @ 2017-02-06 13:50 ` Philippe Gerum 2017-02-07 6:18 ` dreamtale90 0 siblings, 1 reply; 6+ messages in thread From: Philippe Gerum @ 2017-02-06 13:50 UTC (permalink / raw) To: dreamtale90, xenomai On 02/06/2017 02:30 AM, dreamtale90@163.com 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: "dreamtale90@163.com" <dreamtale90@163.com> > Date: 2017-02-04 12:04:15 > To: xenomai@xenomai.org > 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. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Xenomai] Fw:some API about RT_TASK occur Segmentation fault 2017-02-06 13:50 ` Philippe Gerum @ 2017-02-07 6:18 ` dreamtale90 2017-02-07 14:19 ` [Xenomai] some " dreamtale90 0 siblings, 1 reply; 6+ messages in thread From: dreamtale90 @ 2017-02-07 6:18 UTC (permalink / raw) To: Philippe Gerum; +Cc: xenomai 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" <rpm@xenomai.org> wrote: >On 02/06/2017 02:30 AM, dreamtale90@163.com 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: "dreamtale90@163.com" <dreamtale90@163.com> >> Date: 2017-02-04 12:04:15 >> To: xenomai@xenomai.org >> 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. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Xenomai] some API about RT_TASK occur Segmentation fault 2017-02-07 6:18 ` dreamtale90 @ 2017-02-07 14:19 ` dreamtale90 2017-02-07 15:17 ` Philippe Gerum 0 siblings, 1 reply; 6+ messages in thread From: dreamtale90 @ 2017-02-07 14:19 UTC (permalink / raw) To: Philippe Gerum; +Cc: xenomai 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. 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，dreamtale90@163.com 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" <rpm@xenomai.org> wrote: >On 02/06/2017 02:30 AM, dreamtale90@163.com 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: "dreamtale90@163.com" <dreamtale90@163.com> >> Date: 2017-02-04 12:04:15 >> To: xenomai@xenomai.org >> 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. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Xenomai] some API about RT_TASK occur Segmentation fault 2017-02-07 14:19 ` [Xenomai] some " dreamtale90 @ 2017-02-07 15:17 ` Philippe Gerum 2017-02-08 2:03 ` dreamtale90 0 siblings, 1 reply; 6+ messages in thread From: Philippe Gerum @ 2017-02-07 15:17 UTC (permalink / raw) To: dreamtale90; +Cc: xenomai On 02/07/2017 03:19 PM, dreamtale90@163.com 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，dreamtale90@163.com > <mailto:dreamtale90@163.com> 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" <rpm@xenomai.org <mailto:rpm@xenomai.org>> wrote: > >On 02/06/2017 02:30 AM, dreamtale90@163.com <mailto:dreamtale90@163.com> 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: "dreamtale90@163.com <mailto:dreamtale90@163.com>" <dreamtale90@163.com <mailto:dreamtale90@163.com>> > >> Date: 2017-02-04 12:04:15 > >> To: xenomai@xenomai.org <mailto:xenomai@xenomai.org> > >> 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. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Xenomai] some API about RT_TASK occur Segmentation fault 2017-02-07 15:17 ` Philippe Gerum @ 2017-02-08 2:03 ` dreamtale90 0 siblings, 0 replies; 6+ messages in thread From: dreamtale90 @ 2017-02-08 2:03 UTC (permalink / raw) To: Philippe Gerum; +Cc: xenomai Philippe, Thank you very much.Exactly as you say, the reason is that my code isn't lastest. Best regards. At 2017-02-07 23:17:28, "Philippe Gerum" <rpm@xenomai.org> wrote: >On 02/07/2017 03:19 PM, dreamtale90@163.com 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，dreamtale90@163.com >> <mailto:dreamtale90@163.com> 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" <rpm@xenomai.org <mailto:rpm@xenomai.org>> wrote: >> >On 02/06/2017 02:30 AM, dreamtale90@163.com <mailto:dreamtale90@163.com> 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: "dreamtale90@163.com <mailto:dreamtale90@163.com>" <dreamtale90@163.com <mailto:dreamtale90@163.com>> >> >> Date: 2017-02-04 12:04:15 >> >> To: xenomai@xenomai.org <mailto:xenomai@xenomai.org> >> >> 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. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-02-08 2:03 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2017-02-06 1:30 [Xenomai] Fw:some API about RT_TASK occur Segmentation fault dreamtale90 2017-02-06 13:50 ` Philippe Gerum 2017-02-07 6:18 ` dreamtale90 2017-02-07 14:19 ` [Xenomai] some " dreamtale90 2017-02-07 15:17 ` Philippe Gerum 2017-02-08 2:03 ` dreamtale90
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.