Re: Possible bug in kernel 2.6.37
Hi Jean, Given that the 2.6.37 kernel is only in experimental I think Debian can only offer very limited support for it. I recommend you stick with your dialog with upstream, it is likely to be the most effective way to get to the bottom of the issue. Ian. On Wed, 2011-01-26 at 21:02 +0100, Jean Baptiste FAVRE wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, I'm not sure this is neither the right place, nor the right way to introduce my problem, but I've only small kernel knowledge. Please excuse me if I'm wrong. I'm using 2 Debian Squeeze Xen Dom0 servers. Those 2 servers provide PCI passthrough for a network card. The idea is to filter network trafic inside dedicated domU instead of having dom0 directly connected on the network. For my tests, I choose Debian Squeeze with 2.6.37 kernel from experimental. Here are the results: - - Debian Squeeze 32bits + 32bits 2.6.37 kernel: incoming packets larger than 128 bytes are blocked somewhere. - - Debian Squeeze 32bits + 64bits 2.6.37 kernel: everything works fine. - - Debian Squeeze 64bits + 64bits 2.6.37 kernel: everything works fine. My first thought was I discovered a bug in Xen PCI passthrough code. I exchange some mails on xen-devel mailing list about it, mostly with Konrad Rzeszutek Wilk. He asked me to do many tests which did not help to diagnose the problem. Then he suggest me to change memory allocated to domU from 256mb to 512mb. That solved my problem. Now, I don't know exactly what I shall do. Any help will be appreciated, Regards, Jean Baptiste Favre -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk1Afb8ACgkQM2eZoKJfKd3Y/QCgtMm2sTTj3VL/0hyPkMoP8my4 2lEAoKy13l/NiQBscuzCNmlgLc4aHfur =HIsl -END PGP SIGNATURE- -- Ian Campbell If anything can go wrong, it will. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1296160968.20804.48.camel@localhost.localdomain
Re: Possible bug in kernel 2.6.37
Hello Ian, Thanks for your answer. Let's talk about his back on xen-devel list so. See you there :) Regards, JB Le 27/01/2011 21:42, Ian Campbell a écrit : Hi Jean, Given that the 2.6.37 kernel is only in experimental I think Debian can only offer very limited support for it. I recommend you stick with your dialog with upstream, it is likely to be the most effective way to get to the bottom of the issue. Ian. On Wed, 2011-01-26 at 21:02 +0100, Jean Baptiste FAVRE wrote: Hello, I'm not sure this is neither the right place, nor the right way to introduce my problem, but I've only small kernel knowledge. Please excuse me if I'm wrong. I'm using 2 Debian Squeeze Xen Dom0 servers. Those 2 servers provide PCI passthrough for a network card. The idea is to filter network trafic inside dedicated domU instead of having dom0 directly connected on the network. For my tests, I choose Debian Squeeze with 2.6.37 kernel from experimental. Here are the results: - Debian Squeeze 32bits + 32bits 2.6.37 kernel: incoming packets larger than 128 bytes are blocked somewhere. - Debian Squeeze 32bits + 64bits 2.6.37 kernel: everything works fine. - Debian Squeeze 64bits + 64bits 2.6.37 kernel: everything works fine. My first thought was I discovered a bug in Xen PCI passthrough code. I exchange some mails on xen-devel mailing list about it, mostly with Konrad Rzeszutek Wilk. He asked me to do many tests which did not help to diagnose the problem. Then he suggest me to change memory allocated to domU from 256mb to 512mb. That solved my problem. Now, I don't know exactly what I shall do. Any help will be appreciated, Regards, Jean Baptiste Favre -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4d41e4be.50...@jbfavre.org
Possible bug in kernel 2.6.37
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, I'm not sure this is neither the right place, nor the right way to introduce my problem, but I've only small kernel knowledge. Please excuse me if I'm wrong. I'm using 2 Debian Squeeze Xen Dom0 servers. Those 2 servers provide PCI passthrough for a network card. The idea is to filter network trafic inside dedicated domU instead of having dom0 directly connected on the network. For my tests, I choose Debian Squeeze with 2.6.37 kernel from experimental. Here are the results: - - Debian Squeeze 32bits + 32bits 2.6.37 kernel: incoming packets larger than 128 bytes are blocked somewhere. - - Debian Squeeze 32bits + 64bits 2.6.37 kernel: everything works fine. - - Debian Squeeze 64bits + 64bits 2.6.37 kernel: everything works fine. My first thought was I discovered a bug in Xen PCI passthrough code. I exchange some mails on xen-devel mailing list about it, mostly with Konrad Rzeszutek Wilk. He asked me to do many tests which did not help to diagnose the problem. Then he suggest me to change memory allocated to domU from 256mb to 512mb. That solved my problem. Now, I don't know exactly what I shall do. Any help will be appreciated, Regards, Jean Baptiste Favre -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk1Afb8ACgkQM2eZoKJfKd3Y/QCgtMm2sTTj3VL/0hyPkMoP8my4 2lEAoKy13l/NiQBscuzCNmlgLc4aHfur =HIsl -END PGP SIGNATURE- -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4d407dbf.6040...@jbfavre.org
