From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 95) Description of problem: IBM Token-Ring Lanstreamer driver is included in the kernel, but it is buggy. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Correctly configure your card. 2. ifup tr0 3. ifdown tr0 Actual Results: The system (kernel) hangs Expected Results: Not hang Additional info: This is a known bug. Patches are available from IBM: http://oss.software.ibm.com/developer/opensource/linux/patches/tr.php I'll be happy to see this fixed before RH7.2 release.
I added this patch to our kernel recently and I hope/expect it to make it into our next release.