Bug 128995
| Summary: | kernel hangs after floating-point assist faults | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 3 | Reporter: | Gary Hade <garyhade> |
| Component: | kernel | Assignee: | Geoff Gustafson <grgustaf> |
| Status: | CLOSED WORKSFORME | QA Contact: | Brian Brock <bbrock> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3.0 | CC: | acjohnso, gone, jbaron, lcm, peterm, petrides, riel |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | ia64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-09-12 20:29:39 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
hmmm, there isn't much to go on here. Is it possible to get an alt-sysrq-t at the time of the hang? Gary, are you going to follow up on this at some point? Ernie, thanks for pinging me on this. I somehow missed Jason's 6 month old request for more information. One reason I neglected to respond was probably due to the lack of subsequent problem occurrences that would have provided reminders. Since the problem was not reproducible this bug can be closed. |
From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 4.0) Description of problem: We've seen the kernel hang twice while running stress tests on a two node IBM x455. In both cases a series of "floating-point assist fault" messages had been previously written to the console. It is not clear whether the hang is associated with the floating-point errors. The following messages are from the most recent failure. float_exp_log(17776): floating-point assist fault at ip 200000000008f7b2 float_exp_log(17780): floating-point assist fault at ip 200000000008f7b2 float_exp_log(17769): floating-point assist fault at ip 200000000008f7b2 float_exp_log(17771): floating-point assist fault at ip 200000000008f7b2 float_exp_log(17771): floating-point assist fault at ip 200000000008f7b2 float_exp_log(17781): floating-point assist fault at ip 200000000008f7b2 float_exp_log(17783): floating-point assist fault at ip 200000000008f7b2 float_exp_log(17785): floating-point assist fault at ip 200000000008f7b2 Version-Release number of selected component (if applicable): kernel-2.4.21-18.EL How reproducible: Sometimes Steps to Reproduce: 1. We encountered the problem while subjecting the system to heavy test load. 2. 3. Actual Results: kernel hang Expected Results: no kernel hang Additional info: