Date: Wed, 26 Aug 2009 21:10:47 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r196567 - head/sys/kern Message-ID: <200908262110.n7QLAlgm074474@svn.freebsd.org>
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Author: marius Date: Wed Aug 26 21:10:47 2009 New Revision: 196567 URL: http://svn.freebsd.org/changeset/base/196567 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 MFC after: 3 days Modified: head/sys/kern/kern_exit.c Modified: head/sys/kern/kern_exit.c ============================================================================== --- head/sys/kern/kern_exit.c Wed Aug 26 21:08:41 2009 (r196566) +++ head/sys/kern/kern_exit.c Wed Aug 26 21:10:47 2009 (r196567) @@ -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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