Date: Sun, 28 Jan 2007 21:14:58 -0800 From: Nate Lawson <nate@root.org> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: cvs-src@freebsd.org, src-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/geom/eli g_eli.c Message-ID: <45BD82D2.20301@root.org> In-Reply-To: <20070128202917.5B67916A5A6@hub.freebsd.org> References: <20070128202917.5B67916A5A6@hub.freebsd.org>
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Pawel Jakub Dawidek wrote: > pjd 2007-01-28 20:29:12 UTC > > FreeBSD src repository > > Modified files: > sys/geom/eli g_eli.c > Log: > It is possible that GEOM taste provider before SMP is started. > We can't bind to a CPU which is not yet on-line, so add code that wait for > CPUs to go on-line before binding to them. > > Reported by: Alin-Adrian Anton <aanton@spintech.ro> > MFC after: 2 weeks > > Revision Changes Path > 1.34 +7 -0 src/sys/geom/eli/g_eli.c > > > Index: src/sys/geom/eli/g_eli.c > diff -u src/sys/geom/eli/g_eli.c:1.33 src/sys/geom/eli/g_eli.c:1.34 > --- src/sys/geom/eli/g_eli.c:1.33 Thu Nov 2 09:01:34 2006 > +++ src/sys/geom/eli/g_eli.c Sun Jan 28 20:29:12 2007 > @@ -324,6 +324,13 @@ > > wr = arg; > sc = wr->w_softc; > +#ifdef SMP > + /* Before sched_bind() to a CPU, wait for all CPUs to go on-line. */ > + if (sc->sc_crypto == G_ELI_CRYPTO_SW && g_eli_threads == 0) { > + while (!smp_started) > + tsleep(wr, 0, "geli:smp", hz / 4); > + } > +#endif > mtx_lock_spin(&sched_lock); > sched_prio(curthread, PRIBIO); > if (sc->sc_crypto == G_ELI_CRYPTO_SW && g_eli_threads == 0) I thought tsleep() didn't work right before !cold. Is that old knowledge? -- Nate
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