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Tue, 19 May 2020 08:11:58 +0000 Received: from mail-qk1-f173.google.com ([209.85.222.173]) by mrelayeu.kundenserver.de (mreue012 [212.227.15.129]) with ESMTPSA (Nemesis) id 1MHEPI-1joAm82FOq-00DHXs for ; Tue, 19 May 2020 10:11:44 +0200 Received: by mail-qk1-f173.google.com with SMTP id f189so13794438qkd.5 for ; Tue, 19 May 2020 01:11:44 -0700 (PDT) X-Gm-Message-State: AOAM5339oSJovDaEXEDMIp8oAztDSq/Ef02GRA1zWoiKdH98dBzQuY8F q69QMAyR1VImb14p0mn+Y/NS4O/fl6yfro+FI6g= X-Google-Smtp-Source: ABdhPJx6XgbSzoT+qvNjdY9pWlEyJs3vEhdbk/bed0qIGoM1ay/d49G6y8ZoK1QmCZ9OPzgrrkMiO8yQSdyKoKqOetU= X-Received: by 2002:a37:aa82:: with SMTP id t124mr18447360qke.3.1589875903344; Tue, 19 May 2020 01:11:43 -0700 (PDT) MIME-Version: 1.0 References: <20200501135806.4eebf0b92f84ab60bba3e1e7@linux-foundation.org> <20200519075213.GF32497@dhcp22.suse.cz> In-Reply-To: <20200519075213.GF32497@dhcp22.suse.cz> From: Arnd Bergmann Date: Tue, 19 May 2020 10:11:25 +0200 X-Gmail-Original-Message-ID: Message-ID: To: Michal Hocko X-Provags-ID: V03:K1:r/ZjKgBU/ib482cnscz66PZRRiEogifr+aQrVFGHjzTV0IXiCJy himyjAfch3Y6wfM4XiJbVYwcowfeliH32VkFgVfw1Ct0XYtNA0JAQXR+TIUGtwro7pw+u8J PmuO8euS5rZV1EVsc9z47bebQMUB1pBQr5M2Ea3Czwf7HeGMLTn3iRNSb9L5X8OtLw0DgkK wuFBNmOFyX3gMCu9X+Reg== X-UI-Out-Filterresults: notjunk:1;V03:K0:WuFq2U6Bns8=:MvKjCriDrEUNjOZDQVIBee f/pZ3/LjjIzcb5IviY0iuSTtFrm9x0dT8LnSOeFvVZ2s7X8yeORhxnIS40MoDmim85GSxzg62 gH8Xu1v3ovWup86iCmas4/BB0uRZC9HDNplIX3TgjdgzgFyiGc7TwG1uVVvPaE+IFT/hby1nL YzQhoVvPUsFtwpGB3g5c5Rv8oezQkIB/fiVOec4FXaI2ZrgMhXzhXTq93aT3UOaY5RCFV5LVA 9PGdJVFftC4kv1iQTYEIKmUUYeY0Zj7ABapV9+l2Kh8/6pbHKJOVTDGCy3+HbDA8Ax/Weehkh 1ddtJPXc3zKTpyXOmlalY2zWrFMzmmrgT33yMyihiTOus+s9gEyG9mMEWXZoxudOYjwA9oziO OIeuiD0+0NIyGvVZX6TRgvLkAS/JedQhU/ctOD9kIit+PjbM6YYFzz5JE+j7yaXsgK2BaJmDb yB1W64eVmHQi1cQ7SEVOGEKRmFVrx2TIVcscPWMjxUgIgeG3rfpu6U475+3nq4AxARVrQmTMV 4P8Zlc9Oa4wAonmbWP6oc0BLUZPPOUd6MCZi6RslvaB2V111dzSezPDh1Yg56oUwzpA5RxgYp XLm4zmgcGglrYQoauhYqrer/RmWyeT47rXmoGIGQDhaUbKtKFZivIy5Kj8SjvdpFdsrOnl+28 yK1UL3R0NquJ/EdAS5Ggr/bkToaQejL3MA4PJx0/mVOVSNg9SefVx/8NYLvcZUWCsQpGqGb+N x/wKAdWiaO9l3VF2Wlu802+5z8JvX5CwcflxAmZJhQu/K037VVfdwWyS4rWR2/pEq+Pwg7U6a deNPrYEjg48FA1LjkY6LmQ2R96pxK8yA0vfmdCokyaWCDctYGc= X-Headers-End: 1jaxLu-000OP2-K2 Subject: Re: [f2fs-dev] mm: mkfs.ext4 invoked oom-killer on i386 - pagecache_get_page X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrea Arcangeli , Theodore Ts'o , Naresh Kamboju , Hugh Dickins , open list , Matthew Wilcox , "Linux F2FS DEV, Mailing List" , linux-block , linux-mm , Linux-Next Mailing List , Andreas Dilger , lkft-triage@lists.linaro.org, Jaegeuk Kim , Andrew Morton , linux-ext4 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On Tue, May 19, 2020 at 9:52 AM Michal Hocko wrote: > > On Mon 18-05-20 19:40:55, Naresh Kamboju wrote: > > Thanks for looking into this problem. > > > > On Sat, 2 May 2020 at 02:28, Andrew Morton wrote: > > > > > > On Fri, 1 May 2020 18:08:28 +0530 Naresh Kamboju wrote: > > > > > > > mkfs -t ext4 invoked oom-killer on i386 kernel running on x86_64 device > > > > and started happening on linux -next master branch kernel tag next-20200430 > > > > and next-20200501. We did not bisect this problem. > [...] > > Creating journal (131072 blocks): [ 31.251333] mkfs.ext4 invoked > > oom-killer: gfp_mask=0x101cc0(GFP_USER|__GFP_WRITE), order=0, > > oom_score_adj=0 > [...] > > [ 31.500943] DMA free:187396kB min:22528kB low:28160kB high:33792kB > > reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB > > active_file:4736kB inactive_file:431688kB unevictable:0kB > > writepending:62020kB present:783360kB managed:668264kB mlocked:0kB > > kernel_stack:888kB pagetables:0kB bounce:0kB free_pcp:880kB > > local_pcp:216kB free_cma:163840kB > > This is really unexpected. You are saying this is a regular i386 and DMA > should be bottom 16MB while yours is 780MB and the rest of the low mem > is in the Normal zone which is completely missing here. How have you got > to that configuration? I have to say I haven't seen anything like that > on i386. I think that line comes from an ARM32 beaglebone-X15 machine showing the same symptom. The i386 line from the log file that Naresh linked to at https://lkft.validation.linaro.org/scheduler/job/1406110#L1223 is less unusual: [ 34.931663] Node 0 active_anon:21464kB inactive_anon:8688kB active_file:16604kB inactive_file:849976kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:25284kB dirty:58952kB writeback:27772kB shmem:8944kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 34.955523] DMA free:3356kB min:68kB low:84kB high:100kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:11964kB unevictable:0kB writepending:11980kB present:15964kB managed:15876kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 34.983385] lowmem_reserve[]: 0 825 1947 825 [ 34.987678] Normal free:3948kB min:7732kB low:8640kB high:9548kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:1096kB inactive_file:786400kB unevictable:0kB writepending:65432kB present:884728kB managed:845576kB mlocked:0kB kernel_stack:1112kB pagetables:0kB bounce:0kB free_pcp:2908kB local_pcp:500kB free_cma:0kB [ 35.017427] lowmem_reserve[]: 0 0 8980 0 [ 35.021362] HighMem free:1049496kB min:512kB low:1748kB high:2984kB reserved_highatomic:0KB active_anon:21464kB inactive_anon:8688kB active_file:15508kB inactive_file:51612kB unevictable:0kB writepending:0kB present:1149540kB managed:1149540kB mlocked:0kB kernel_stack:0kB pagetables:712kB bounce:0kB free_pcp:1524kB local_pcp:292kB free_cma:0kB [ 35.051717] lowmem_reserve[]: 0 0 0 0 [ 35.055374] DMA: 8*4kB (UE) 1*8kB (E) 1*16kB (E) 0*32kB 0*64kB 0*128kB 1*256kB (E) 0*512kB 1*1024kB (E) 1*2048kB (E) 0*4096kB = 3384kB [ 35.067446] Normal: 27*4kB (U) 23*8kB (U) 12*16kB (UE) 12*32kB (U) 4*64kB (UE) 2*128kB (U) 2*256kB (UE) 1*512kB (E) 0*1024kB 1*2048kB (U) 0*4096kB = 4452kB [ 35.081347] HighMem: 2*4kB (UM) 0*8kB 1*16kB (M) 2*32kB (UM) 1*64kB (U) 0*128kB 1*256kB (M) 1*512kB (M) 0*1024kB 0*2048kB 256*4096kB (M) = 1049496kB Arnd _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel