Date: Tue, 31 Dec 2013 15:41:16 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r260132 - head/sys/cddl/dev/dtrace Message-ID: <201312311541.rBVFfGlw059166@svn.freebsd.org>
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Author: markj Date: Tue Dec 31 15:41:16 2013 New Revision: 260132 URL: http://svnweb.freebsd.org/changeset/base/260132 Log: Allocate the probe ID unrhdr before the DTrace kld_* event handlers are registered. Otherwise there is a small window during which probe IDs may be allocated before the unrhdr is allocated. MFC after: 2 weeks Modified: head/sys/cddl/dev/dtrace/dtrace_load.c Modified: head/sys/cddl/dev/dtrace/dtrace_load.c ============================================================================== --- head/sys/cddl/dev/dtrace/dtrace_load.c Tue Dec 31 15:37:51 2013 (r260131) +++ head/sys/cddl/dev/dtrace/dtrace_load.c Tue Dec 31 15:41:16 2013 (r260132) @@ -58,6 +58,8 @@ dtrace_load(void *dummy) dtrace_taskq = taskq_create("dtrace_taskq", 1, maxclsyspri, 0, 0, 0); + dtrace_arena = new_unrhdr(1, INT_MAX, &dtrace_unr_mtx); + /* Register callbacks for linker file load and unload events. */ dtrace_kld_load_tag = EVENTHANDLER_REGISTER(kld_load, dtrace_kld_load, NULL, EVENTHANDLER_PRI_ANY); @@ -85,8 +87,6 @@ dtrace_load(void *dummy) ASSERT(MUTEX_HELD(&cpu_lock)); - dtrace_arena = new_unrhdr(1, INT_MAX, &dtrace_unr_mtx); - dtrace_state_cache = kmem_cache_create("dtrace_state_cache", sizeof (dtrace_dstate_percpu_t) * NCPU, DTRACE_STATE_ALIGN, NULL, NULL, NULL, NULL, NULL, 0);
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