PROBLEM: kernel BUG at dev.c:998! - panic w/ uml/bridge and Intel 82562 (e100)
flat view
From: Benjamin Low <hidden>
Date: 2003-10-22 03:54:49
[report as per http://www.kernel.org/pub/linux/docs/lkml/reporting- bugs.html] [1.] panic when starting uml host with bridged networking on an Intel 82562 (e100 driver) [2.] I'm running user-mode-linux on a Gigabyte GA-8IG1000MK motherboard (Intel 865G chipset with onboard 82562 ethernet), and experience repeatable kernel panics when starting a uml instance. I have three bridges to the host (br0, br1 and br2) with the hosts eth0, eth1 and eth2 as port 1 on each bridge, respectively. eth0 is a 3Com 3c595 (3c59x), eth1 is the onboard Intel 82562 (e100), eth2 is a Netgear Natsemi DP83815 (natsemi). The panic does not occur if I do not plug the physical LAN cable into the Intel 82562 ethernet port. 'Internal' networking works fine, the uml instance and the host can communicate via the bridge (w/ lots of traffic: ping -f), but when plugging in the cable the host kernel panics on the first packet. If I take the interface down within the uml (uml# ifconfig eth1 down) and then plug in the the physical LAN, all works well *for a while*, though the panic still occurs after some traffic has passed (about 60-100 pings). The eepro100 driver works as expected (no panics). [3.] [4.] scripts/ver_linux: Linux preston 2.4.22 #1 Wed Oct 22 10:41:11 EST 2003 i686 GNU/Linux Gnu make 3.80 binutils 2.14.90.0.6 util-linux 2.12 mount 2.12 modutils 2.4.21 e2fsprogs 1.35-WIP PPP 2.4.1 Linux C Library 2.3.2 Dynamic linker (ldd) 2.3.2 Procps 3.1.12 Net-tools 1.60 Kbd 70: Sh-utils 5.0 Modules Loaded ipt_TCPMSS ipt_limit ipt_LOG ipt_state ipt_REJECT iptable_filter ipt_MASQUERADE iptable_nat ip_conntrack ip_tables natsemi e100 3c59x bridge uhci ehci-hcd usbcore tun rtc [5.] Can provide Oops output if required [6.] n/a [7.] Debian testing, can provide any proc info as required.