pre-2.3.29-1 SIGSYS same as SIGUNUSED?

Keith Owens (kaos@ocs.com.au)
Fri, 19 Nov 1999 18:28:54 +1100

pre-patch-2.3.29-1 defines SIGSYS as number 31, the same as SIGUNUSED.
The only place SIGUNUSED is referenced is in arch/i386/kernel/vm86.c

#define ALLOWED_SIGS ( 1 /* 0 = don't send a signal */ \
| (1 << SIGUSR1) | (1 << SIGUSR2) | (1 << SIGIO) | (1 << SIGURG) \
| (1 << SIGUNUSED) )

vm86 is not patched in 2.3.29-1 so we end up being able to send SIGSYS
via VM86_REQUEST_IRQ. Is this intentional?

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