e6d6734db2
When process a is switched to process b, the address environment is swapped with a call to group_addrenv(). The stack upon entry will be a's, and upon exit b's. This will fail, so a neutral stack is required, either a kernel stack or an IRQ stack. Infrastructure for an IRQ stack is already in place, so give a hint that an interrupt stack should be provided if address environments are enabled. |
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