Date: Mon, 30 Jan 2006 08:39:10 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/net if_gif.c if_gif.h src/sys/netinet in_gif.c src/sys/netinet6 in6_gif.c Message-ID: <200601300839.k0U8dAVt064693@repoman.freebsd.org>
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glebius 2006-01-30 08:39:09 UTC FreeBSD src repository Modified files: sys/net if_gif.c if_gif.h sys/netinet in_gif.c sys/netinet6 in6_gif.c Log: Add some initial locking to gif(4). It doesn't covers the whole driver, however IPv4-in-IPv4 tunnels are now stable on SMP. Details: - Add per-softc mutex. - Hold the mutex on output. The main problem was the rtentry, placed in softc. It could be freed by ip_output(). Meanwhile, another thread being in in_gif_output() can read and write this rtentry. Reported by: many Tested by: Alexander Shiryaev <aixp mail.ru> Revision Changes Path 1.58 +15 -24 src/sys/net/if_gif.c 1.19 +7 -1 src/sys/net/if_gif.h 1.34 +2 -0 src/sys/netinet/in_gif.c 1.24 +2 -0 src/sys/netinet6/in6_gif.c
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