Date: Wed, 1 Aug 2001 13:11:11 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: Ian Dowse <iedowse@maths.tcd.ie> Cc: John Baldwin <jhb@FreeBSD.org>, smp@FreeBSD.org Subject: Re: kaboom... Message-ID: <Pine.BSF.4.21.0108011308540.19703-100000@beppo> In-Reply-To: <20010729155402.V44279-100000@wonky.feral.com>
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Has there been anything further on this? Leaving this serious amount breakage at the top of the tree for more than a week is really bad. I think I'm going to roll this out if nothing happens in a couple of days. On Sun, 29 Jul 2001, Matthew Jacob wrote: > > Ah. Sorry for the noise then. > > On Sun, 29 Jul 2001, Ian Dowse wrote: > > > In message <20010729153617.C44279-100000@wonky.feral.com>, Matthew Jacob writes > > : > > >Happened again once. It may be if I do 2 make -j 8 kernel builds I get this. > > >The panic is somewhere in exit1 where marked: > > > > > if ((p->p_pptr->p_procsig->ps_flag & PS_NOCLDWAIT) > > > || p->p_pptr->p_sigacts->ps_sigact[_SIG_IDX(SIGCHLD)] == SIG_IGN) > > > > Yeah, see my post to -current on friday ("SIGCHLD changes causing.."). > > Matt Dillon is apparently looking into this, but I was able to find > > out that this is caused when the parent process is swapped out. It > > is ok to check p_procsig->ps_flag, but p_sigacts is in the struct > > user area that is inaccessible when the process is swapped out. > > > > Backing out kern_sig.c r1.125 and kern_exit.c r1.131 should fix it. > > > > Ian > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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