Date: Tue, 27 Mar 2012 18:22:14 +0000 (UTC) From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r233569 - head/sys/dev/hwpmc Message-ID: <201203271822.q2RIMEkn098210@svn.freebsd.org>
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Author: gonzo Date: Tue Mar 27 18:22:14 2012 New Revision: 233569 URL: http://svn.freebsd.org/changeset/base/233569 Log: Fix crash on VirtualBox (and probably on some real hardware): - Do not cover error returned by pmc_core_initialize with the result of pmc_uncore_initialize, fail right away. - Give a user something to report instead failing silently Reported by: Alexandr Kovalenko <never@nevermind.kiev.ua> Modified: head/sys/dev/hwpmc/hwpmc_core.c head/sys/dev/hwpmc/hwpmc_intel.c Modified: head/sys/dev/hwpmc/hwpmc_core.c ============================================================================== --- head/sys/dev/hwpmc/hwpmc_core.c Tue Mar 27 18:17:22 2012 (r233568) +++ head/sys/dev/hwpmc/hwpmc_core.c Tue Mar 27 18:22:14 2012 (r233569) @@ -2406,8 +2406,12 @@ pmc_core_initialize(struct pmc_mdep *md, PMCDBG(MDP,INI,1,"core-init cputype=%d ncpu=%d ipa-version=%d", md->pmd_cputype, maxcpu, ipa_version); - if (ipa_version < 1 || ipa_version > 3) /* Unknown PMC architecture. */ + if (ipa_version < 1 || ipa_version > 3) { + /* Unknown PMC architecture. */ + printf("hwpc_core: unknown PMC architecture: %d\n", + ipa_version); return (EPROGMISMATCH); + } core_cputype = md->pmd_cputype; Modified: head/sys/dev/hwpmc/hwpmc_intel.c ============================================================================== --- head/sys/dev/hwpmc/hwpmc_intel.c Tue Mar 27 18:17:22 2012 (r233568) +++ head/sys/dev/hwpmc/hwpmc_intel.c Tue Mar 27 18:22:14 2012 (r233569) @@ -239,6 +239,9 @@ pmc_intel_initialize(void) KASSERT(0, ("[intel,%d] Unknown CPU type", __LINE__)); } + if (error) + goto error; + /* * Init the uncore class. */
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