Description of problem: 64k arm kernel failed to output module_summary and module_top info on hpe-apache-cn99xx-10.khw4.lab.eng.bos.redhat.com with rd.memdebug=5 when dong nfs dump. Version-Release number of selected component (if applicable): RHEL-9.2.0-20230115.7 How reproducible: always Steps to Reproduce: 1. Install&boot 64k kernel 5.14.0-228.dd64kv4.el9.aarch64+64k and install memstrack 2. Set up nfs dumping 3. Append rd.memdebug=5 to KDUMP_COMMANDLINE_APPEND in /etc/sysconfig/kdump 4. kdumpctl restart 5. Trigger kernel crash Actual results: No module_summary and module_top info is printed. Expected results: module_summary and module_top should be printed. Additional info: 1. If I make kdump.sh wait 20s after finishing local dumping, module_summary and module_top info can be printed successfully. 2. This issue is not found on 4k arm kernel for nfs dumping. But it can also reproduced for local dumping.
I notice this issue can also reproduced for 4k kernel with local dumping. So actually there are two issues, 1) memstrack-report.sh which reports module_summary and module_top info is installed as a dracut cleanup hook but it doesn't have a chance to be executed when vmcore dumping is finished early 2) vmcore dumping is done slower for 64k arm kernel compared with 4k arm kernel
reset the DTM to 19