[AMD Public Use] Hi David,
Thanks for your explanation. We saw slow boot issue on our farm/QA's machines and mine. All of machines are same SoC/board. BRs, Leo -----Original Message----- From: David Hildenbrand <[email protected]> Sent: Tuesday, March 16, 2021 4:38 PM To: Liang, Liang (Leo) <[email protected]>; Mike Rapoport <[email protected]> Cc: Deucher, Alexander <[email protected]>; [email protected]; amd-gfx list <[email protected]>; Andrew Morton <[email protected]>; Huang, Ray <[email protected]>; Koenig, Christian <[email protected]>; Rafael J. Wysocki <[email protected]>; George Kennedy <[email protected]> Subject: Re: slow boot with 7fef431be9c9 ("mm/page_alloc: place pages to tail in __free_pages_core()") On 16.03.21 09:00, Liang, Liang (Leo) wrote: > [AMD Public Use] > > Hi Mike, > > Thanks for help. The patch works for me and boot time back to normal. So it's > a fix, or just WA? Hi Leo, excluding up to 16 MiB of memory on every system just because that single platform is weird is not acceptable. I think we have to figure out a) why that memory is so special. This is weird. b) why the platform doesn't indicate it in a special way. Why is it ordinary system RAM but still *that* slow? c) how we can reliably identify such memory and exclude it. I'll have a peek at the memory layout of that machine from boot logs next to figure out if we can answer any of these questions. Just to verify: this does happen on multiple machines, not just a single one? (i.e., we're not dealing with faulty RAM) -- Thanks, David / dhildenb _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
