Red Hat Bugzilla – Bug 591788
Kdump hangs under RHEL5.5 64bit when sending SysRq in AMD platform
Last modified: 2015-08-24 02:27:57 EDT
Description of problem: >> Kdump hangs under RHEL5.4 when running the following commands. >> # echo 1 > /proc/sys/kernel/sysrq >> # echo c > /proc/sysrq-trigger Version-Release number of selected component (if applicable): >> RHEL 5.5 64bit Steps to Reproduce: >> 1. Boot to RHEL5.5 64bit >> 2. Enter command line >> 3. Kdump hangs under RHEL5.4 when running the following commands. >> # echo 1 > /proc/sys/kernel/sysrq >> # echo c > /proc/sysrq-trigger Actual results: >> System halt Expected results: >> System reboot Additional info: >> 1. Processor: AMD Budapest >> 2. Chipset: MCP55 >> There is no issue on RHEL 5.5 32 bit
https://bugzilla.redhat.com/show_bug.cgi?id=473404 This similar bug ever was reported, but it seems there were not do a complete fix since RHEL 5.5 64bit still failed in this command.
This Bugzilla has been reviewed by Red Hat and is not planned on being addressed in Red Hat Enterprise Linux 5, and therefore is being closed. If this bug is critical to production systems, please contact your Red Hat support representative and provide a sufficient business justification in order to re-open it.