Date: Thu, 11 Jul 2013 05:15:31 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r253186 - head/sys/i386/i386 Message-ID: <201307110515.r6B5FVlX033846@svn.freebsd.org>
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Author: kib Date: Thu Jul 11 05:15:30 2013 New Revision: 253186 URL: http://svnweb.freebsd.org/changeset/base/253186 Log: Explicitely panic instead of possibly doing undefined things when ptelist KVA is exhausted. Currently this cannot happen, the added panic serves as assert. Discussed with: alc Sponsored by: The FreeBSD Foundation Modified: head/sys/i386/i386/pmap.c Modified: head/sys/i386/i386/pmap.c ============================================================================== --- head/sys/i386/i386/pmap.c Thu Jul 11 05:10:36 2013 (r253185) +++ head/sys/i386/i386/pmap.c Thu Jul 11 05:15:30 2013 (r253186) @@ -680,7 +680,7 @@ pmap_ptelist_alloc(vm_offset_t *head) va = *head; if (va == 0) - return (va); /* Out of memory */ + panic("pmap_ptelist_alloc: exhausted ptelist KVA"); pte = vtopte(va); *head = *pte; if (*head & PG_V)
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