Hi Prarit, On Tue, May 07, 2019 at 10:54:13AM -0400, Prarit Bhargava wrote: > Heiko, it would still be good to get a test of this patch from you. I > tested this here at Red Hat on some System Z machines. Without the > modification made here in v2, the systems failed to boot ~10% of the time. > After the modification I do not see any boot failures. I also was > able to reproduce the boot issue with the acpi_cpufreq driver on a very > large & fast x86 system which had closer to 100% failure rate without > the changes in v2. After the modification in v2 the system has rebooted > all weekend without any issues.
I gave it a try on a machine that failed quite reliably with your first patch (the one that was in linux-next and caused problems on s390) - it now comes up without any issues. Also a machine with 80 CPUs (+SMT2 -> 160 CPUs) comes up without problems. So everything seems to work. Thanks!
