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Kernel: Fix signal delivery when no syscall is made
This fixes a regression introduced by the new software context switching where the Kernel would not deliver a signal unless the process is making system calls. This is because the TSS no longer updates the CS value, so the scheduler never considered delivery as the process always appeared to be in kernel mode. With software context switching we can just set up the signal trampoline at any time and when the processor returns back to user mode it'll get executed. This should fix e.g. killing programs that are stuck in some tight loop that doesn't make any system calls and is only pre-empted by the timer interrupt. Fixes #2958
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4 changed files with 10 additions and 39 deletions
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@ -773,7 +773,7 @@ void Process::terminate_due_to_signal(u8 signal)
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{
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ASSERT_INTERRUPTS_DISABLED();
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ASSERT(signal < 32);
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dbg() << "Terminating due to signal " << signal;
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dbg() << "Terminating " << *this << " due to signal " << signal;
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m_termination_status = 0;
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m_termination_signal = signal;
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die();
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