Hash :
f9f45d0b
Author :
Date :
2018-02-25T19:51:34
Fixed bug 4097 - Segmentation fault by SDL_CreateThreadWithStackSize
Dongsun Kim
Normal case
1. [thread 1] SDL_CreateThreadWithStackSize calls SDL_SYS_CreateThread.
2. [thread 1] If successful, it calls SDL_SemWait.
3. [thread 2] SDL_RunThread calls SDL_SYS_SetupThread, SDL_ThreadID, SDL_SemPost.
4. [thread 1] SDL_CreateThreadWithStackSize calls SDL_DestroySemaphore, SDL_free.
Crash case (Segmentation fault)
1. [thread 1] SDL_CreateThreadWithStackSize calls SDL_SYS_CreateThread.
2. [thread 1] If successful, it calls SDL_SemWait.
--> Error return due to SIGNAL(SYSTEM or Real Time) at sem_wait(pthread).
3. [thread 1] SDL_CreateThreadWithStackSize calls SDL_DestroySemaphore, SDL_free.
4. [thread 2] SDL_RunThread calls SDL_SYS_SetupThread, SDL_ThreadID, SDL_SemPost.
--> Segmentation fault at strlen or sem_post.