Date: Tue, 31 Aug 2010 07:15:50 +0000 (UTC) From: David Xu <davidxu@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r212047 - head/sys/kern Message-ID: <201008310715.o7V7FoSI021421@svn.freebsd.org>
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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) @@ -2139,20 +2139,9 @@ tdsendsignal(struct proc *p, struct thre * We try do the per-process part here. */ if (P_SHOULDSTOP(p)) { - /* - * The process is in stopped mode. All the threads should be - * either winding down or already on the suspended queue. - */ - if (p->p_flag & P_TRACED) { - /* - * The traced process is already stopped, - * so no further action is necessary. - * No signal can restart us. - */ - goto out; - } - if (sig == SIGKILL) { + if (p->p_flag & P_TRACED) + goto out; /* * SIGKILL sets process running. * It will die elsewhere. @@ -2163,6 +2152,8 @@ tdsendsignal(struct proc *p, struct thre } if (prop & SA_CONT) { + if (p->p_flag & P_TRACED) + goto out; /* * If SIGCONT is default (or ignored), we continue the * process but don't leave the signal in sigqueue as @@ -2207,6 +2198,8 @@ tdsendsignal(struct proc *p, struct thre } if (prop & SA_STOP) { + if (p->p_flag & P_TRACED) + goto out; /* * Already stopped, don't need to stop again * (If we did the shell could get confused).
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