Date: Wed, 01 Sep 2010 09:24:01 +0000 From: David Xu <davidxu@freebsd.org> To: Jilles Tjoelker <jilles@stack.nl> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r212047 - head/sys/kern Message-ID: <4C7E1BB1.3080209@freebsd.org> In-Reply-To: <20100831181631.GA31653@stack.nl> References: <201008310715.o7V7FoSI021421@svn.freebsd.org> <20100831181631.GA31653@stack.nl>
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Jilles Tjoelker wrote: > On Tue, Aug 31, 2010 at 07:15:50AM +0000, David Xu wrote: >> Author: davidxu >> Date: Tue Aug 31 07:15:50 2010 >> New Revision: 212047 >> URL: http://svn.freebsd.org/changeset/base/212047 > >> Log: >> If a process is being debugged, skips job control caused by SIGSTOP/SIGCONT >> signals, because it is managed by debugger, however a normal signal sent to >> a interruptibly sleeping thread wakes up the thread so it will handle the >> signal when the process leaves the stopped state. > >> PR: 150138 >> MFC after: 1 week > >> Modified: >> head/sys/kern/kern_sig.c > >> Modified: head/sys/kern/kern_sig.c >> ============================================================================== >> --- head/sys/kern/kern_sig.c Tue Aug 31 06:22:03 2010 (r212046) >> +++ head/sys/kern/kern_sig.c Tue Aug 31 07:15:50 2010 (r212047) >> if (sig == SIGKILL) { >> + if (p->p_flag & P_TRACED) >> + goto out; >> /* >> * SIGKILL sets process running. >> * It will die elsewhere. > > Hmm, shouldn't SIGKILL kill right away regardless of debuggers? > Hmm^2, it is a history behavior.
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