Hi Geert, Thanks for trying to bisect this. On Tue, Dec 12, 2017 at 09:54:05PM +0100, Geert Uytterhoeven wrote: > On Tue, Dec 12, 2017 at 5:57 PM, Will Deacon <will.deacon@xxxxxxx> wrote: > > Do you reckon you can bisect between -rc1 and -rc2? We've been unable to > > reproduce this on any of our systems, unfortunately. > > I've tried, but ended up on an unrelated XFS merge commit. Probably I > marked a few commits good due to not seeing this heisenbug. > > For reference, here's the bisect log. > > Bad commits showed one or both of "unhandled level 0 translation fault" and > "invalid pointer". Good commits didn't show any during 6 tries. > > git bisect start > # bad: [ae64f9bd1d3621b5e60d7363bc20afb46aede215] Linux 4.15-rc2 > git bisect bad ae64f9bd1d3621b5e60d7363bc20afb46aede215 > # good: [4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323] Linux 4.15-rc1 > git bisect good 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 > # good: [9e0600f5cf6cecfcab5046d1453a9538c054d8a7] Merge tag > 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm > git bisect good 9e0600f5cf6cecfcab5046d1453a9538c054d8a7 > # good: [503505bfea19b7d69e2572297e6defa0f9c2404e] Merge branch > 'drm-fixes-4.15' of git://people.freedesktop.org/~agd5f/linux into > drm-fixes > git bisect good 503505bfea19b7d69e2572297e6defa0f9c2404e > # good: [ae753ee2771a1bacade56411bb98037b2545c929] Merge tag > 'afs-fixes-20171201' of > git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs > git bisect good ae753ee2771a1bacade56411bb98037b2545c929 > # good: [e1ba1c99dad92c5917b22b1047cf36e4426b124a] Merge tag > 'riscv-for-linus-4.15-rc2_cleanups' of > git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux > git bisect good e1ba1c99dad92c5917b22b1047cf36e4426b124a ^^ This one is the first "good" commit containing the arm64-fixes pull. Maybe try stressing it a bit more and see if it also fails? That said, I'm still suspicious that nobody else is seeing this -- I also checked the various build/boot farms and everything looks ok. Will
