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Subject: Re: [PATCH] kvmalloc: always use vmalloc if CONFIG_DEBUG_VM
References: <alpine.LRH.2.02.1804181029270.19294@file01.intranet.prod.int.rdu2.redhat.com>
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From: Eric Dumazet <eric.dumazet@gmail.com>
Message-ID: <6260a8af-3166-94d3-9441-104d342ab7a1@gmail.com>
Date: Thu, 19 Apr 2018 09:25:48 -0700
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To: Mikulas Patocka <mpatocka@redhat.com>, David Miller <davem@davemloft.net>, Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org
Cc: eric.dumazet@gmail.com, edumazet@google.com, bhutchings@solarflare.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, dm-devel@redhat.com, Vlastimil Babka <vbabka@suse.cz>



On 04/19/2018 09:12 AM, Mikulas Patocka wrote:
> 
> 
> These bugs are hard to reproduce because vmalloc falls back to kmalloc
> only if memory is fragmented.
> 

This sentence is wrong.

.... because kvmalloc() falls back to vmalloc() ...