From: William Kucharski <william.kucharski@oracle.com>
To: Meelis Roos <mroos@linux.ee>
Cc: LKML <linux-kernel@vger.kernel.org>, linux-mm@kvack.org
Subject: Re: CONFIG_DEBUG_VIRTUAL breaks boot on x86-32
Date: Tue, 26 Mar 2019 07:52:07 -0600 [thread overview]
Message-ID: <A1B7F481-4BF6-4441-8019-AE088F8A8939@oracle.com> (raw)
In-Reply-To: <4d5ee3b0-6d47-a8df-a6b3-54b0fba66ed7@linux.ee>
Does this still happen on 5.1-rc2?
Do you have idea as to what max_low_pfn() gets set to on your system at boot time?
From the screen shot I'm guessing it MIGHT be 0x373fe, but it's hard to know for sure.
> On Mar 21, 2019, at 2:22 PM, Meelis Roos <mroos@linux.ee> wrote:
>
> I tried to debug another problem and turned on most debug options for memory.
> The resulting kernel failed to boot.
>
> Bisecting the configurations led to CONFIG_DEBUG_VIRTUAL - if I turned it on
> in addition to some other debug options, the machine crashed with
>
> kernel BUG at arch/x86/mm/physaddr.c:79!
>
> Screenshot at http://kodu.ut.ee/~mroos/debug_virtual-boot-hang-1.jpg
>
> The machine was Athlon XP with VIA KT600 chipset and 2G RAM.
>
> --
> Meelis Roos <mroos@linux.ee>
>
next prev parent reply other threads:[~2019-03-26 13:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-21 20:22 Meelis Roos
2019-03-26 13:52 ` William Kucharski [this message]
2019-03-26 17:50 ` Meelis Roos
2019-03-26 20:11 ` Ralph Campbell
2019-03-27 7:03 ` Meelis Roos
2019-03-27 10:26 ` William Kucharski
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