Date: Sun, 21 Aug 2011 11:24:36 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Ask Bj?rn Hansen <ask@develooper.com> Cc: embedded@freebsd.org, net@freebsd.org Subject: Re: Hang with ZERO_COPY_SOCKETS or TCP_SIGNATURE enabled? (was: system locks up with vr driver on alix board) Message-ID: <20110821082436.GD17489@deviant.kiev.zoral.com.ua> In-Reply-To: <865C098E-2A24-481B-9B97-2E426AE481CB@develooper.com> References: <D8B41107-90ED-4357-A7DA-4FF987C70567@develooper.com> <4E4AB3BE.4090603@sentex.net> <9255C71C-BB78-417E-A900-85140FC2050C@develooper.com> <20110817002911.GA7614@michelle.cdnetworks.com> <C64CDCB3-A1DE-48CF-BEE5-54BA7084B3CB@develooper.com> <F1B3D7C0-6AC7-4C10-9C99-AAC6A89D8415@develooper.com> <865C098E-2A24-481B-9B97-2E426AE481CB@develooper.com>
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--HdLezCswwuDmNOis Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Aug 20, 2011 at 04:58:59PM -0700, Ask Bj?rn Hansen wrote: >=20 > On Aug 17, 2011, at 7:52, Ask Bj?rn Hansen wrote: >=20 > > Grasping at straws here, but when enabling BREAK_TO_DEBUGGER I noticed = that the kernel had ZERO_COPY_SOCKETS and TCP_SIGNATURE enabled. I disable= d those, "just in case". >=20 > Hi everyone, >=20 > Thanks again for your help and hints getting this fixed for me. >=20 > I just wanted to send an update that those kernel options seemed to be th= e ticket to make it stable again. I haven't had it hang since disabling IP= SEC, ZERO_COPY_SOCKETS and TCP_SIGNATURE (I wasn't using md5 signatures, ha= ving any ipsec sessions or to my knowledge running any applications that'd = be using zero copy sockets). ZERO_COPY_SOCKETS are known to be broken. --HdLezCswwuDmNOis Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAk5QwMIACgkQC3+MBN1Mb4ii8QCg6lJZe+71tOugiSKEAsiVcLSk tygAoO82WrsQ4IkzbYsLt717RGF7/Pe1 =dNdC -----END PGP SIGNATURE----- --HdLezCswwuDmNOis--
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