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Date: Mon, 9 Mar 2020 09:55:52 +0000
From: "Martin Husemann" <martin@netbsd.org>
Subject: CVS commit: [netbsd-9] src/sys/compat/netbsd32
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Module Name:	src
Committed By:	martin
Date:		Mon Mar  9 09:55:52 UTC 2020

Modified Files:
	src/sys/compat/netbsd32 [netbsd-9]: netbsd32_mod.c

Log Message:
Pull up following revision(s) (requested by pgoyette in ticket #770):

	sys/compat/netbsd32/netbsd32_mod.c: revision 1.19

If a syscall requires a module to be autoloaded, the initial invocation
of that syscall will return ERESTART.  For amd64's netbsd32_syscall()
that means we need to back up the PC saved in the trap frame so we can
re-issue the syscall instruction.  For "normal" syscall traps, we saved
the instruction length in the trap frame, but this was missing for the
oosyscall/lcall path.  Since the PC was not backed up, the kernel-only
value ERESTART was returned to userland, causing all sort of grief for
old compat_netbsd32 executables!

XXX Pullup-9


To generate a diff of this commit:
cvs rdiff -u -r1.15.4.2 -r1.15.4.3 src/sys/compat/netbsd32/netbsd32_mod.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.