The following reply was made to PR kern/37437; it has been noted by GNATS.

From: Arto Huusko <arto.huusko@pp2.inet.fi>
To: gnats-bugs@NetBSD.org
Cc: kern-bug-people@netbsd.org, gnats-admin@netbsd.org,
	netbsd-bugs@netbsd.org
Subject: Re: kern/37437: signal problems in linux threads
Date: Tue, 27 Nov 2007 07:22:53 +0200

 Andrew Doran wrote:
 
 >  o Remove the back-calls to sendsig_reset() from the delivery routines.
 >  o Don't cover the delivery routines with p_smutex.
 >  o Have kpsendsig() do sendsig_reset()'s job before we call down to the
 >    delivery routine, and unlock before we call down.
 
 kpsendsig() seems to receive the returnmask as a pointer to the LWP's
 sigmask sigset. If kpsendsig is to call sendsig_reset(), it must make
 a copy of that sigset before calling sendsig_reset(), and pass that
 copy to the delivery routine, in order to avoid (for all emulations,
 then) problem fixed in compat/linux32/arch/amd64/linux32_machdep.c
 revision 1.13.