From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686) Gecko/20040107 Galeon/1.3.7 Description of problem: When setting up an ethernet bridge between an Intel ethernet adapter and a TUN/TAP device, the kernel locks up after a short while. Version-Release number of selected component (if applicable): kernel-2.4.20-28.9 How reproducible: Always Steps to Reproduce: 1 Create tap0 (e.g. run usermode-linux with --eth0=tuntap) 2. # ifconfig eth0 0.0.0.0 promisc up 3. # ifconfig tap0 0.0.0.0 promisc up 4. # brctl addbr br0 5. # brctl addif br0 eth0 6. # brctl addif br0 tap0 7. # ifconfig br0 192.168.0.1 8. # ping 192.168.0.2 Actual Results: Hard lockup after a short while, Sys-Rq not possible, nothing in logs. Expected Results: No lockup. Additional info: No problems with vanilla kernel 2.4.24. eth0 driver is e100. lspci info: 05:08.0 Ethernet controller: Intel Corp. 82801BD PRO/100 VE (LOM) Ethernet Controller (rev 81) Subsystem: Compaq Computer Corporation: Unknown device 0091 Flags: bus master, medium devsel, latency 66, IRQ 5 Memory at fc500000 (32-bit, non-prefetchable) [size=4K] I/O ports at 1000 [size=64] Capabilities: [dc] Power Management version 2
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