Date: Mon, 31 Aug 2009 19:16:58 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r196709 - in stable/8/sys: . amd64/include/xen cddl/contrib/opensolaris contrib/dev/acpica contrib/pf dev/xen/xenpci kern Message-ID: <200908311916.n7VJGwPN036558@svn.freebsd.org>
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Author: marius Date: Mon Aug 31 19:16:58 2009 New Revision: 196709 URL: http://svn.freebsd.org/changeset/base/196709 Log: Add a temporary workaround which just lets init die instead of causing a panic if it is killed due to a unsolved stack overflow seen very late during shutdown on sparc64 when the gmirror worker process exists, which is a regression introduced in 8.0. Reviewed by: kib Approved by: re (rwatson) Modified: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) stable/8/sys/kern/kern_exit.c Modified: stable/8/sys/kern/kern_exit.c ============================================================================== --- stable/8/sys/kern/kern_exit.c Mon Aug 31 19:07:19 2009 (r196708) +++ stable/8/sys/kern/kern_exit.c Mon Aug 31 19:16:58 2009 (r196709) @@ -131,7 +131,12 @@ exit1(struct thread *td, int rv) mtx_assert(&Giant, MA_NOTOWNED); p = td->td_proc; - if (p == initproc) { + /* + * XXX in case we're rebooting we just let init die in order to + * work around an unsolved stack overflow seen very late during + * shutdown on sparc64 when the gmirror worker process exists. + */ + if (p == initproc && rebooting == 0) { printf("init died (signal %d, exit %d)\n", WTERMSIG(rv), WEXITSTATUS(rv)); panic("Going nowhere without my init!");
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