https://bugzilla.kernel.org/show_bug.cgi?id=204371
--- Comment #5 from Erhard F. (erhar...@mailbox.org) --- On Wed, 31 Jul 2019 12:09:54 +0000 bugzilla-dae...@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=204371 > > --- Comment #4 from m...@ellerman.id.au --- > > > I suspect proc_cgroup_show() is innocent and that perhaps > > bpf_prepare_filter() had a memory scribble. iirc there has been at > > least one recent pretty serious bpf fix applied recently. Can others > > please take a look? > > I haven't been able to reproduce this on a 64-bit or 32-bit powerpc > machine here. But I don't run gentoo userspace, so I suspect I'm not > tripping the same path at boot. I did run the seccomp selftest and that > didn't trip it either. > > cheers Doing some fiddling around on another bug (bug #204375), I noticed that I get this "kmalloc-4k (Tainted: G W ): Object padding overwritten" during boot only when I boot from my btrfs partition, but not from my other ext4 partition. The ext4 partition is not a clone, but pretty much the same stuff in the same versions. My btrfs root is mounted with 'lazytime,compress=zstd:1', systemd is 242. I built a 5.2.5 kernel on the Talos II with CONFIG_SLUB_DEBUG=y but here I don't hit the bug, even if I boot from a btrfs partition with the same settings. Have to test it on the G5 yet (kernel .config more similar to the G4 one than the Talos II one). -- You are receiving this mail because: You are on the CC list for the bug.
