Date: Wed, 30 Sep 2020 13:52:25 +0200 From: Alexander Leidinger <Alexander@leidinger.net> To: Kristof Provost <kp@freebsd.org> Cc: Shawn Webb <shawn.webb@hardenedbsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: iflib/bridge kernel panic Message-ID: <20200930135225.Horde.nVCxwqfnkoJfolbDU0hqqXf@webmail.leidinger.net> In-Reply-To: <6A5EFCFA-C0DC-4DEF-834B-2F9E4FCC8812@FreeBSD.org> References: <CAExMvskTkVprZsfXHBUv9stpiCo1QBAzoOg1VrWd4kRbz0NyJg@mail.gmail.com> <58CADEBB-64FD-414E-AB19-E4F8D3CABCA5@FreeBSD.org> <20200921121627.3dovpumnl6xub3kn@mutt-hbsd> <7FE1F106-2CEE-4692-95D0-14C5229ED768@FreeBSD.org> <20200928124531.Horde.0EjsBzIG5ktLzby_tFcoPPS@webmail.leidinger.net> <33903BFF-4158-4CD9-AD79-360BCD81F1C9@FreeBSD.org> <20200928164410.Horde.mYBkuEeD_Q6xgnKnwNomv7P@webmail.leidinger.net> <6A5EFCFA-C0DC-4DEF-834B-2F9E4FCC8812@FreeBSD.org>
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This message is in MIME format and has been PGP signed. --=_1uAUeyzQyrPQ04N48YH6bX_ Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Quoting Kristof Provost <kp@freebsd.org> (from Tue, 29 Sep 2020=20=20 23:20:44=20+0200): > On 28 Sep 2020, at 16:44, Alexander Leidinger wrote: > >> Quoting Kristof Provost <kp@freebsd.org> (from Mon, 28 Sep 2020=20=20 >>=2013:53:16 +0200): >> >>> On 28 Sep 2020, at 12:45, Alexander Leidinger wrote: >>>> Quoting Kristof Provost <kp@freebsd.org> (from Sun, 27 Sep 2020=20=20 >>>>=2017:51:32 +0200): >>>>> Here=E2=80=99s an early version of a task queue based approach:=20=20 >>>>>=20http://people.freebsd.org/~kp/0001-bridge-Cope-with-if_ioctl-s-that= -sleep.patch >>>>> >>>>> That still needs to be cleaned up, but this should resolve the=20=20 >>>>>=20sleep issue and the LOR. >>>> >>>> There are some issues... seems like inside a jail I can't ping=20=20 >>>>=20systems outside of the hardware. >>>> >>>> Bridge setup: >>>> - member jail A >>>> - member jail B >>>> - member external_if of host >>>> >>>> If I ping the router from the host, it works. If I ping from one=20=20 >>>>=20jail to another, it works. If I ping from the jail to the IP of=20= =20 >>>>=20the external_if, it works. If I ping from a jail to the router, I=20= =20 >>>>=20do not get a response. >>>> >>> Can you check for 'failed ifpromisc' error messages in dmesg? And=20=20 >>>=20verify that all bridge member interfaces are in promiscuous mode? >> >> I have a panic for you...: >> - startup still in progress =3D 22 jails in startup, somewhere after=20= =20 >>=20a few jails started the panic happened >> - tcpdump was running on the external interface >> - a ping to a jail IP from another system was running, the first=20=20 >>=20ping went through, then it paniced >> >> First regarding your questions about promisc mode: no error, but=20=20 >>=20the promisc mode is directly disabled again on all interfaces. >> > I think I see why you had issues with the promiscuous setting. I=E2=80=99= ve=20=20 >=20updated the patch to be even more horrific than it was before. Hmmm.... same behavior as before. I haven't kept the old version of the patch, so I can't compare if I=20=20 somehow=20downloaded the old version again, or if I got the updated one... # md5 0001-bridge-Cope-with-if_ioctl-s-that-sleep.patch MD5 (0001-bridge-Cope-with-if_ioctl-s-that-sleep.patch) =3D=20=20 9f107739e29fad5c9bb5e75e2dae7bcc >=20I can=E2=80=99t explain the panic, and the backtrace also doesn=E2=80= =99t appear to=20=20 >=20be directly related to this patch. Not sure what=E2=80=99s going on wit= h that. Then let's hope for now it is some kind of defect which is not showing=20= =20 up=20when it works as it should... we can have a look at it again in=20=20 case=20it reproduces with the final patch. Bye, Alexander. --=20 http://www.Leidinger.net=20Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF --=_1uAUeyzQyrPQ04N48YH6bX_ Content-Type: application/pgp-signature Content-Description: Digitale PGP-Signatur Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJfdHF5AAoJEBINsJsD+NiGBQsP/2K1tZOhSU+WVhVE+HHINFjx 4LCV6Ee8leUtPG4oMpWcSB22rO8sgGqidG8VAl0zpM2NPBDUTV6+DFtJC7lLgy5h WIl3W9vLE9andH5qDXKf1qFiFLW4FvyfPI0Z9HGhXboIOqd1ANAMC9ompwQvGZSi LIAlDp9fss7vWTk7nmXCQ9HnblROue4UYsKQP+Q4YmZfTfL1ByULuGuATC4GbEfb hPamlMuioKbOWxpvzMdZ321AU5IuPoDEpu3AneAZ+UmbwTtlDnGWG1gbM4F3VKgx uy4WjHE672lcPdzWRFNYUmR5lmIVOLZ9KCf2Wfk1D9ojJwU4+2CCZJfZGGEyubdo tGkxy4bUx2/mCbwR2SizAnevYpSFwkLXWGMLQMa6oFPstHEb+Bir1rO8bDgaqu7n GuujmbMUnl468snxWc/BZiuNwB3jGcmqr37StIi/5igl4RuFTzkEQYojCm+F+txs inI2Ir3A1wjeOCwR2ISN4hnhuOwIVvFrjeEwnTP1R0mnPH49rlijQjVzynojfXjZ GIDrRmCLRsivKzpHCyqK9gABcqlkD8tPlyvroeBpX5/J4Yt85kvDDxFiY+llvFY8 sj2uQHsxNMZh/JCoJ2LwCMpxwoIFp1yEOrX7RIX3SjCC3NcWwGJLlWfhodKe8vLV mu1Uu4AGjP1CMALDH0JD =zDy6 -----END PGP SIGNATURE----- --=_1uAUeyzQyrPQ04N48YH6bX_--
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