linux-kernel - Re: ARM Juno r1 + CONFIG_PROVE

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Message-ID: <20191011131058.GA26061@bogus>
Date:   Fri, 11 Oct 2019 14:10:58 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     James Morse <james.morse@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Liviu Dudau <liviu.dudau@....com>,
        LKML <linux-kernel@...r.kernel.org>,
        Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: ARM Juno r1 + CONFIG_PROVE_LOCKING=y => boot failure

On Fri, Oct 11, 2019 at 03:02:42PM +0200, Marek Szyprowski wrote:
> Hi James,
>
> On 11.10.2019 12:38, James Morse wrote:
> > Hi guys,
> >
> > On 11/10/2019 11:05, Sudeep Holla wrote:
> >> On Fri, Oct 11, 2019 at 11:26:04AM +0200, Marek Szyprowski wrote:
> >>> Recently I've got access to ARM Juno R1 board and did some tests with
> >>> current mainline kernel on it. I'm a bit surprised that enabling
> >>> CONFIG_PROVE_LOCKING causes a boot failure on this board. After enabling
> >>> this Kconfig option, I get no single message from the kernel, although I
> >>> have earlycon enabled.
> >> I don't have Juno R1 but I tried defconfig + CONFIG_PROVE_LOCKING and
> >> it boots fine.
> > I just tried this on my r1, v5.4-rc1 with this configuration worked just fine.
> >
> > My cmdline is:
> > | root=/dev/sda6 loglevel=9 earlycon=pl011,0x7ff80000 hugepagesz=2M hugepages=512
> > | crashkernel=1G console=ttyAMA0 resume=/dev/sda2 no_console_suspend efi=debug
> >
> That is a bit strange. Here is a boot log from v5.4-rc1 with pure
> defconfig: https://paste.debian.net/1105851/
>

I see from the boot log that both Image.gz and dtb being loaded at the
same address 0x82000000, will u-boot uncompress it elsewhere after loading
it ? Just for my understanding.

--
Regards,
Sudeep