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Sun, 01 Mar 2020 20:56:56 -0800 (PST) Subject: Re: [PATCH 00/10] Kendryte k210 SoC boards support To: Damien Le Moal , "linux-riscv@lists.infradead.org" , Palmer Dabbelt References: <20200212103432.660256-1-damien.lemoal@wdc.com> <5be71201-962c-5db6-c330-f30a770c4034@gmail.com> <789d9de4-8b76-19ff-15bc-eaef6d274173@gmail.com> From: Sean Anderson Autocrypt: addr=seanga2@gmail.com; prefer-encrypt=mutual; keydata= mQENBFe74PkBCACoLC5Zq2gwrDcCkr+EPGsT14bsxrW07GiYzQhLCgwnPdEpgU95pXltbFhw 46GfyffABWxHKO2x+3L1S6ZxC5AiKbYXo7lpnTBYjamPWYouz+VJEVjUx9aaSEByBah5kX6a lKFZWNbXLAJh+dE1HFaMi3TQXXaInaREc+aO1F7fCa2zNE75ja+6ah8L4TPRFZ2HKQzve0/Y GXtoRw97qmnm3U36vKWT/m2AiLF619F4T1mHvlfjyd9hrVwjH5h/2rFyroXVXBZHGA9Aj8eN F2si35dWSZlIwXkNu9bXp0/pIu6FD0bI+BEkD5S7aH1G1iAcMFi5Qq2RNa041DfQSDDHABEB AAG0K1NlYW4gR2FsbGFnaGVyIEFuZGVyc29uIDxzZWFuZ2EyQGdtYWlsLmNvbT6JAVcEEwEK AEECGwMFCwkIBwIGFQgJCgsCBBYCAwECHgECF4ACGQEWIQSQYR1bzo1I0gPoYCg+6I/stKEQ bgUCXT+S2AUJB2TlXwAKCRA+6I/stKEQbhNOB/9ooea0hU9Sgh7PBloU6CgaC5mlqPLB7NTp +JkB+nh3Fqhk+qLZwzEynnuDLl6ESpVHIc0Ym1lyF4gT3DsrlGT1h0Gzw7vUwd1+ZfN0CuIx Rn861U/dAUjvbtN5kMBqOI4/5ea+0r7MACcIVnKF/wMXBD8eypHsorT2sJTzwZ6DRCNP70C5 N1ahpqqNmXe0uLdP0pu55JCqhrGw2SinkRMdWyhSxT56uNwIVHGhLTqH7Q4t1N6G1EH626qa SvIJsWlNpll6Y3AYLDw2/Spw/hqieS2PQ/Ky3rPZnvJt7/aSNYsKoFGX0yjkH67Uq8Lx0k1L w8jpXnbEPQN3A2ZJCbeMuQENBF0/k2UBCADhvSlHblNc/aRAWtCFDblCJJMN/8Sd7S9u4ZRS w1wIB4tTF7caxc8yfCHa+FjMFeVu34QPtMOvd/gfHz0mr+t0PiTAdDSbd6o7tj+g5ylm+FhT OTUtJQ6mx6L9GzMmIDEbLxJMB9RfJaL2mT5JkujKxEst6nlHGV/lEQ54xBl5ImrPvuR5Dbnr zWQYlafb1IC5ZFwSMpBeSfhS7/kGPtFY3NkpLrii/CF+ME0DYYWxlkDIycqF3fsUGGfb3HIq z2l95OB45+mCs9DrIDZXRT6mFjLcl35UzuEErNIskCl9NKlbvAMAl+gbDH275SnE44ocC4qu 0tMe7Z5jpOy6J8nNABEBAAGJATwEGAEKACYWIQSQYR1bzo1I0gPoYCg+6I/stKEQbgUCXT+T ZQIbDAUJAeEzgAAKCRA+6I/stKEQbjAGB/4mYRqZTTEFmcS+f+8zsmjt2CfWvm38kR+sJFWB vz82pFiUWbUM5xvcuOQhz698WQnIazbDGSYaOipyVNS52YiuYJDqMszzgw++DrcSuu0oRYWN EWCkJjxMqjGg8uY0OZ6FJG+gYRN5wMFErGfV1OqQ7l00FYA9OzpOEuW9PzPZEutFnAbbh77i zvxbQtT7IJCL24A4KutNYKmWg98im4mCzQcJCxE86Bv69ErLVPUyYbp4doLadScilXlvkkjL iq1wOt3rRzOuw+qnWVgWGBPxdDftz0Wck941tYF9XE0aMgkf4o1sGoDZFUFPCQdfEYPzzV7O S5hN3/mP5UeooFHb Message-ID: Date: Sun, 1 Mar 2020 23:56:55 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200301_205658_447254_6FD10D72 X-CRM114-Status: GOOD ( 14.02 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anup Patel , Paul Walmsley Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org Archived-At: List-Archive: On 3/1/20 11:54 PM, Damien Le Moal wrote: > On 2020/03/02 13:18, Sean Anderson wrote: >> On 3/1/20 11:11 PM, Damien Le Moal wrote: >>> On 2020/03/02 12:53, Sean Anderson wrote: >>>> On 3/1/20 10:01 PM, Damien Le Moal wrote: >>>>> On 2020/02/29 5:32, Sean Anderson wrote: >>>>>> Hi, >>>>>> >>>>>> When booting from U-Boot I get an OOM. Perhaps this is related to the >>>>>> second cpu not coming up? >>>>> >>>>> Unlikely. It looks like your user space needs 2MB per shell (order 9 >>>>> allocation). Since you have only 5.5MB free, that may explain the allocation >>>>> failure (if init is forking another shell especially). >>>> >>>> This should be before init comes up; when comparing this to your syslog >>>> output there are several more messages before init gets started. >>> >>> Ah, yes. Your log shows: >>> [ 1.899086] Mem-Info: >>> [ 1.901072] active_anon:0 inactive_anon:0 isolated_anon:0 >>> [ 1.901072] active_file:0 inactive_file:0 isolated_file:0 >>> [ 1.901072] unevictable:705 dirty:0 writeback:0 unstable:0 >>> [ 1.901072] slab_reclaimable:0 slab_unreclaimable:215 >>> [ 1.901072] mapped:0 shmem:0 pagetables:0 bounce:0 >>> [ 1.901072] free:417 free_pcp:0 free_cma:0 >>> >>> so only 417 free pages, but awapper is asking for 512 pages allocation... Weird. >>> Did you use the k210 default config ? Something using too much memory for the >>> board has been added to the config I think. >> >> I am using the default config. I thought it might be the initramfs >> taking too much space on decompression, but I got the same problem when >> using an uncompressed initramfs. > > Yes, that must be it. How big is your initramfs ? I generally do not see any > problem with 500-600KB initramfs. For bigger ones, I do see the OOM problem > often too. But most of the time, the OOM triggers more if the busybox executable > is too big and there are too many shell levels. My initramfs is 1.6M atm, so perhaps I should try with a smaller one. --Sean