Messages in this thread | | | Date | Mon, 25 Sep 2017 17:02:40 +0300 | From | Yury Norov <> | Subject | Re: ARM64: kernel panics in DABT in sys_msync path |
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Hi Will,
> > The bug is reproducible for ilp32 and lp64 binaries. For kernel 4.12 > > and for all kernels if '-smp 1' is passed to qemu, everything works > > fine. If no ideas, I think I'm able bisect it. > > I tried to reproduce this on hardware, but failed to do so. Our nightly > tests are also coming back fine for rwtest03. I just built Qemu v2.10.0 > and that also passes the test with -smp 4 for me, so I'm a bit stuck.
I also see the test passed sometimes. I run it in endless cycle and leave for a while. 5-10 iterations are usually enough.
> Could you share: > > * Your kernel .config > * Your QEMU command line > * Details of your userspace
Qemu configure command: ./configure --target-list=aarch64-softmmu --enable-fdt --enable-vhost-net --enable-kvm
And run command: /home/yury/work/qemu-2.10.0/aarch64-softmmu/qemu-system-aarch64 \ -machine virtualization=true -machine gic-version=3 \ -machine virt -cpu cortex-a57 -nographic -smp 4 -m 1024 \ -global virtio-blk-device.scsi=off -device virtio-scsi-device,id=scsi \ -drive file=img/ubuntu-core-14.04.1-core-arm64.img,id=coreimg,cache=unsafe,if=none -device scsi-hd,drive=coreimg \ -kernel /home/yury/work/linux/arch/arm64/boot/Image \ --append "console=ttyAMA0 root=/dev/sda" \ -initrd initrd.img-3.13.0-62-generic \ $NETWORK \ -redir tcp:2222::22 \ -s \ $@
My userspace is Ubuntu 14. I build lp64 tests with default Ubuntu toolchain, and ilp32 tests with Linaro cross-toolchain.
The config is attached, and the branch is vanilla 4.13 kernel, or this one: https://github.com/norov/linux/tree/ilp32-4.13
Later today I will share the whole qemu environment I use.
Yury [unhandled content-type:application/gzip] | |