From: Simon Horman <horms@kernel.org>
To: Ming Wang <wangming01@loongson.cn>
Cc: kexec@lists.infradead.org, loongarch@lists.linux.dev
Subject: Re: [PATCH] LoongArch: Increase MAX_MEMORY_RANGES to 1024
Date: Mon, 27 Apr 2026 17:02:12 +0100 [thread overview]
Message-ID: <20260427160212.GA612626@horms.kernel.org> (raw)
In-Reply-To: <20260304011914.880120-1-wangming01@loongson.cn>
On Wed, Mar 04, 2026 at 09:19:14AM +0800, Ming Wang wrote:
> On some LoongArch systems, especially multi-socket machines like 3D6000,
> the current limit of MAX_MEMORY_RANGES (64) is too small to accommodate
> all memory range entries in /proc/iomem.
>
> When the limit is reached, get_memory_ranges() stops parsing, which causes
> kexec to fail with "locate_hole failed" because it cannot correctly identify
> the crash kernel reserved memory or necessary RAM segments.
>
> Increase MAX_MEMORY_RANGES to 1024 to support systems with complex
> memory layouts.
>
> Signed-off-by: Ming Wang <wangming01@loongson.cn>
Thanks, and sorry for the delay.
Applied:
- LoongArch: Increase MAX_MEMORY_RANGES to 1024
https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?id=677dd2f8bcf7
prev parent reply other threads:[~2026-04-27 16:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-04 1:19 [PATCH] LoongArch: Increase MAX_MEMORY_RANGES to 1024 Ming Wang
2026-03-23 6:16 ` Ming Wang
2026-04-27 16:02 ` Simon Horman [this message]
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