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[71.184.117.43]) by smtp.gmail.com with ESMTPSA id n1sm299145qkd.28.2019.03.19.16.26.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Mar 2019 16:26:58 -0700 (PDT) Subject: Re: kernel BUG at include/linux/mm.h:1020! To: Pavel Tatashin Cc: Mel Gorman , Daniel Jordan , Mikhail Gavrilov , linux-mm , Vlastimil Babka References: <20190315205826.fgbelqkyuuayevun@ca-dmjordan1.us.oracle.com> <20190317152204.GD3189@techsingularity.net> <1553022891.26196.7.camel@lca.pw> <1553024101.26196.8.camel@lca.pw> From: Qian Cai Message-ID: <15f16d2a-bf90-ede3-0803-821da3699b27@lca.pw> Date: Tue, 19 Mar 2019 19:26:57 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.3.3 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 3/19/19 7:13 PM, Pavel Tatashin wrote: > Thank you Qian, do you happen to have qemu arguments that you used? No, the KVM guest was running in openstack. # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 24 On-line CPU(s) list: 0-23 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 24 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 79 Model name: Intel(R) Xeon(R) CPU E5-2690 v4 @ 2.60GHz Stepping: 1 CPU MHz: 2599.996 BogoMIPS: 5199.99 Virtualization: VT-x Hypervisor vendor: KVM Virtualization type: full L1d cache: 32K L1i cache: 32K L2 cache: 4096K L3 cache: 16384K NUMA node0 CPU(s): 0-23 # free -mt total used free shared buff/cache available Mem: 41214 36331 4745 0 137 4499 Swap: 0 0 0 Total: 41214 36331 4745