linux-kernel - [PATCH 0/2] kho: fixes for vmalloc restoration

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Message-ID: <20251125110917.843744-1-rppt@kernel.org>
Date: Tue, 25 Nov 2025 13:09:15 +0200
From: Mike Rapoport <rppt@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Alexander Graf <graf@...zon.com>,
	Mike Rapoport <rppt@...nel.org>,
	Pasha Tatashin <pasha.tatashin@...een.com>,
	Pratyush Yadav <pratyush@...nel.org>,
	kexec@...ts.infradead.org,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] kho: fixes for vmalloc restoration

From: "Mike Rapoport (Microsoft)" <rppt@...nel.org>

Hi,

Pratyush reported off-list that when kho_restore_vmalloc() is used to
restore a vmalloc_huge() allocation it hits VM_BUG_ON() when we reconstruct
the struct pages in kho_restore_pages().

These patches fix the issue.

Mike Rapoport (Microsoft) (2):
  kho: kho_restore_vmalloc: fix initialization of pages array
  kho: fix restoring of contiguous ranges of order-0 pages

 kernel/liveupdate/kexec_handover.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

-- 
2.50.1