From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]) by merlin.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cVYPW-0002B7-1X for kexec@lists.infradead.org; Mon, 23 Jan 2017 06:47:26 +0000 From: Xunlei Pang Subject: [PATCH v2] x86/crash: Update the stale comment in reserve_crashkernel() Date: Mon, 23 Jan 2017 14:48:23 +0800 Message-Id: <1485154103-18426-1-git-send-email-xlpang@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: linux-kernel@vger.kernel.org, kexec@lists.infradead.org Cc: Baoquan He , x86@kernel.org, Xunlei Pang , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Robert LeBlanc , Thomas Gleixner , Dave Young , Andrew Morton CRASH_KERNEL_ADDR_MAX has been missing for a long time, update it with more detailed explanation. Cc: Robert LeBlanc Cc: Baoquan He Signed-off-by: Xunlei Pang --- arch/x86/kernel/setup.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 4cfba94..c32a167 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -575,7 +575,9 @@ static void __init reserve_crashkernel(void) /* 0 means: find the address automatically */ if (crash_base <= 0) { /* - * kexec want bzImage is below CRASH_KERNEL_ADDR_MAX + * Set CRASH_ADDR_LOW_MAX upper bound for crash memory + * as old kexec-tools loads bzImage below that, unless + * "crashkernel=size[KMG],high" is specified. */ crash_base = memblock_find_in_range(CRASH_ALIGN, high ? CRASH_ADDR_HIGH_MAX -- 1.8.3.1 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec