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Date: Mon, 15 Sep 2014 17:59:27 +0800 From: "Wang, Yalin" <Yalin.Wang@...ymobile.com> To: 'Russell King - ARM Linux' <linux@....linux.org.uk> CC: 'Will Deacon' <will.deacon@....com>, "'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>, "'linux-arm-kernel@...ts.infradead.org'" <linux-arm-kernel@...ts.infradead.org>, "'linux-mm@...ck.org'" <linux-mm@...ck.org>, "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org> Subject: RE: [RFC] arm:extend the reserved mrmory for initrd to be page aligned Hi Add more log: <4>[ 0.000000] INITRD unalign phys address:0x02000000+0x0022fb0e <4>[ 0.000000] INITRD aligned phys address:0x02000000+0x00230000 <4>[ 0.574868] free_initrd: free initrd 0xc2000000+0xc222fb0e <4>[ 0.579398] free_initrd_mem: free pfn:8192---8752 The inird used memory is still the same as the one passed by bootloads, I don't change it. It should be safe. -----Original Message----- From: Russell King - ARM Linux [mailto:linux@....linux.org.uk] Sent: Monday, September 15, 2014 5:30 PM To: Wang, Yalin Cc: 'Will Deacon'; 'linux-kernel@...r.kernel.org'; 'linux-arm-kernel@...ts.infradead.org'; 'linux-mm@...ck.org'; linux-arm-msm@...r.kernel.org Subject: Re: [RFC] arm:extend the reserved mrmory for initrd to be page aligned On Mon, Sep 15, 2014 at 05:07:53PM +0800, Wang, Yalin wrote: > Hi > > I tested it on my phone, > >From log: > <4>[ 0.000000] INITRD unalign phys address:0x02000000+0x0022fb0e > <4>[ 0.000000] INITRD aligned phys address:0x02000000+0x00230000 > > <4>[ 0.579474] free_initrd_mem: free pfn:8192---8752 > > The tail address is not aligned for most initrd image, This page will > not be freed and lost . Right, so from this I can assume that you only tested it by seeing what the addresses were, and the values used in free_initrd_mem(). What you haven't tested is whether the initrd actually gets used with your changes, which is more what I was interested in given what I found when reading your patch. -- FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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