Hi, I noticed that both the armv7m and x86 port of nuttx's signal sending procedure cannot handle nested signals.
I am wondering that in the up_sigdeliver functions. A task A, being signaled, is possibile to be switch-out because of 1. calling syslog via sinfo 2. interrupts A newly switched in task might send a second signal to the task A. In such case, the saved instruction pointer value in the TCB might get overwritten, causing a consecutive incorrect execution path when returning tho the previous signal. Am I correct or did I missed something here? -- Yang Chung Fan (楊宗凡) (ヤン ゾン ファン) Member of Softlab, Tsukuba University , Japan Email: sonic.tw...@gmail.com
