Red Hat Bugzilla – Bug 190449
REGRESSION: Serial console hang on HP Integrity servers
Last modified: 2007-11-30 17:07:24 EST
Description of problem: The remote serial console using the MP (management processor) interface on many of the HP Integrity servers hangs on recent RHEL4 kernels. This was introduced by the patch for BZ 166591 and I updated that BZ with this info. Since this has been in for about 2 weeks now I am filing a new BZ to make it clear that this is a very critical regression. Version-Release number of selected component (if applicable): Started in 2.6.9-34.21 How reproducible: On certain systems I hit this 100% of the time. All of the low end systems hit this at one time or another. The rx2600 can hit it 100% of the time when I bring up any network device via ifup (appears that the messages it writes to the console trigger it). Steps to Reproduce: Easiest and most reliable way is to: 1. Connect to the management processor console via telnet 2. configure network devices to not enable on boot 3. Install 2.6.9-34.22 or later 4. after bootup log in via console 5. ifup eth0 - note that it hangs until you hit a key It also often hangs when it starts init or sometimes at other random points during bootup. Actual results: Expected results: Additional info:
Doug: I hate to ask ... but it's a good data point ... Has the firmware changed on the MP at all recently?
James, That is a good question but no, I have not changed firmware on the systems in my own test ring in quite some time. Also, I can make my systems work OK when I removed the serial patch for BZ 166591.
ok, this is fixed by reverting the patch for 166591