On Mon, Oct 19, 2020 at 3:55 AM Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote: > > > > On 17.10.20 01:40, Nick Desaulniers wrote: > > On Fri, Oct 16, 2020 at 4:18 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > >> > >> On 10/16/20 4:11 PM, Nick Desaulniers wrote: > >>> 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 > > Do you have more information? If not, any chance to run objdump on the kernel > and check what instructions do you have aroung address 0x1779e > [...] Is PSW the program counter? /me skims https://www.kernel.org/doc/Documentation/s390/Debugging390.txt *woah* Is there something more specific I should be running than: $ s390x-linux-gnu-objdump -Dr vmlinux | grep 179fe because I get lots of hits for that, but not 0x179fe. In fact, the first symbol starts at 0x100000. Unless this is a failure in the image decompressor? > > > Hopefully qemu supports something newer than Z900? Or can we change > > arch/s390/Kconfig:255 to use a different arch? Is arch9 == z900???: > > Newer QEMUs do support up to z13, so I think this is not an issue as long > as you have an uptodate qemu. $ qemu-system-s390x --version QEMU emulator version 5.1.0 (Debian 1:5.1+dfsg-4) -- Thanks, ~Nick Desaulniers
