linux-kernel - Re: [PATCH] memblock: Add limit checking to memblock_virt

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Date:	Wed, 29 Jan 2014 15:53:11 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Tony Luck <tony.luck@...il.com>
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	xen-devel@...ts.xenproject.org,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Dave Hansen <dave.hansen@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Kevin Hilman <khilman@...aro.org>,
	Olof Johansson <olof@...om.net>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] memblock: Add limit checking to memblock_virt_alloc

On Wed, Jan 29, 2014 at 3:39 PM, Yinghai Lu <yinghai@...nel.org> wrote:
> On Wed, Jan 29, 2014 at 3:07 PM, Tony Luck <tony.luck@...il.com> wrote:
>> Hmmph.  ia64 is broken too.  git bisect says:
>>
>> commit ad6492b80f60a2139fa9bf8fd79b182fe5e3647c
>> Author: Yinghai Lu <yinghai@...nel.org>
>> Date:   Mon Jan 27 17:06:49 2014 -0800
>>
>>     memblock, nobootmem: add memblock_virt_alloc_low()
>>
>> is to blame.  But this patch doesn't fix it.  Still dies with:
>>
>> PID hash table entries: 4096 (order: -1, 32768 bytes)
>> Sorting __ex_table...
>> kernel BUG at mm/bootmem.c:504!
>
> that's another path with memblock_virt wrapper for bootmem.

Please check attached patch.

Thanks

Yinghai

View attachment "fix_memblock_virt_alloc_ia64.patch" of type "text/x-patch" (1533 bytes)