Hello all, I'm working on integrating the latest release of buildroot (2020.08.1) into our CI for ClangBuiltLinux. https://github.com/ClangBuiltLinux/boot-utils/pull/25 https://github.com/ClangBuiltLinux/boot-utils/pull/26 https://github.com/ClangBuiltLinux/continuous-integration/pull/327 I'm seeing the following error from QEMU: KASLR disabled: CPU has no PRNG Linux version 5.9.0-00732-g04ed4527465f (ndesaulniers@<myhost>) #30 SMP Fri Oct 16 15:49:05 PDT 2020Kernel fault: interruption code 0005 ilc:2 PSW : 0000200180000000 000000000001779e R:0 T:0 IO:0 EX:0 Key:0 M:0 W:0 P:0 AS:0 CC:2 PM:0 RI:0 EA:3 GPRS: 0000000000000001 0000000c00000000 00000003fffffff4 00000000fffffff0 0000000000000000 00000000fffffff4 000000000000000c 00000000fffffff0 00000000fffffffc 0000000000000000 00000000fffffff8 00000000008a75a8 0000000000000009 0000000000000002 0000000000000008 000000000000bce0 This is via a kernel built by: $ ARCH=s390 CROSS_COMPILE=s390x-linux-gnu- make CC=clang -j71 defconfig $ ARCH=s390 CROSS_COMPILE=s390x-linux-gnu- make CC=clang -j71 The booting qemu: $ qemu-system-s390x -M s390-ccw-virtio -append 'rdinit=/bin/sh ' -display none -initrd /android1/boot-utils/images/s390/rootfs.cpio -kernel /android0/kernel-all/arch/s390/boot/bzImage -m 512m -nodefaults -serial mon:stdio Is there a preferred kernel config or additional flags to QEMU I should be using to avoid this error? It's also possible that there's a bug in the kernel image, but given that it fails very early with no other output, I am slightly suspicious of that. -- Thanks, ~Nick Desaulniers
