On Fri, 1 May 2020 18:08:28 +0530 Naresh Kamboju naresh.kamboju@linaro.org 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.
It would be wonderful if you could do so, please. I can't immediately see any MM change in this area which might cause this.
metadata git branch: master git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git commit: e4a08b64261ab411b15580c369a3b8fbed28bbc1 git describe: next-20200430 make_kernelversion: 5.7.0-rc3 kernel-config: https://builds.tuxbuild.com/1YrE_XUQ6odA52tSBM919w/kernel.config
Steps to reproduce: (always reproducible)
Reproducibility helps!
oom-killer: gfp_mask=0x101cc0(GFP_USER|__GFP_WRITE), order=0,
[ 34.793430] pagecache_get_page+0xae/0x260
[ 34.897923] active_anon:5366 inactive_anon:2172 isolated_anon:0 [ 34.897923] active_file:4151 inactive_file:212494 isolated_file:0 [ 34.897923] unevictable:0 dirty:16505 writeback:6520 unstable:0
[ 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
ZONE_NORMAL has a huge amount of clean pagecache stuck on the inactive list, not being reclaimed.