linux-kernel - Re: AMD GPU driver load hitting BUG_ON in sync_global_pgds

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Message-ID: <19353ca2-11f3-4718-b602-d898ff05ba87@intel.com>
Date: Tue, 22 Apr 2025 08:13:28 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: Bharata B Rao <bharata@....com>, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org
Cc: Dave Hansen <dave.hansen@...ux.intel.com>, luto@...nel.org,
 peterz@...radead.org, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
 x86@...nel.org, hpa@...or.com, nikunj@....com,
 Balbir Singh <balbirs@...dia.com>, kees@...nel.org, alexander.deucher@....com
Subject: Re: AMD GPU driver load hitting BUG_ON in sync_global_pgds_l5()

On 4/21/25 23:34, Bharata B Rao wrote:
> At the outset, it appears that the selection of vmemmap_base doesn't
> seem to consider if there is going to be enough room of accommodating
> future hot plugged pages.

Is this future hotplug area in the memory map at boot?