f9d20ea4d2
Bug description: CONFIG_SMP=y Suppose we have 2 cores in SMP, here is the ps return: PID GROUP CPU PRI POLICY TYPE NPX STATE STACK USED FILLED COMMAND 0 0 0 0 FIFO Kthread N-- Assigned 004076 000748 18.3% CPU0 IDLE 1 0 1 0 FIFO Kthread N-- Running 004096 000540 13.1% CPU1 IDLE nsh> kill -4 0 or: nsh> kill -4 1 system blocked. Reason: In func xx_sigdeliver() restore stage, when saved_irqcount == 0, that means rtcb NOT in critical_section before switch to xx_sigdeliver(), then we need reset the critical_section state before swith back. Fix: Add condition to cover saved_irqcount == 0. Change-Id: I4af7f95e47f6d78a4094c3757d39b01ac9d533b3 Signed-off-by: ligd <liguiding1@xiaomi.com> |
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