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Re: problem in thread creation
- From: Andrew Lunn <andrew at lunn dot ch>
- To: Aravind B <arvindb at cranessoftware dot com>
- Cc: ecos <ecos-discuss at sources dot redhat dot com>
- Date: Wed, 15 Sep 2004 10:49:03 +0200
- Subject: Re: [ECOS] problem in thread creation
- References: <1095235373.1018.11.camel@ambica>
> Thanks for ur kind reply
> After debugging i found that problem is in following code fragment in
> file thread.cxx:
>
> Cyg_Thread::add_to_list( void )
> - 127 {
> 128 // Add thread to housekeeping list
> 129 Cyg_Scheduler::lock();
> 130
> - 131 if( thread_list == 0 )
> 132 list_next = this;
> 133 else {prev != thread_list
> 134 Cyg_Thread *prev = thread_list;
> - 135 do {
> - 136 if ( this == prev )
> 137 break; // found it already!
> - 138 prev = prev->list_next;
> - 139 } while ( prev != thread_list );
> - 140 if ( this != prev ) {
> 141 // insert it in the list:
> - 142 list_next = thread_list->list_next;
> - 143 thread_list->list_next = this;
> 144 }
> 145 }
>
> the control is in the while loop forever as prev == thread_list ( line
> 139 )ie prev has become NULL.
Sounds like your stack is too small and you are overwriting the thread
structures.
Andrew
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