On Mon, Oct 15, 2018 at 04:48:27PM -0500, Rob Herring wrote: > On Mon, Oct 15, 2018 at 4:18 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > > > On Mon, Oct 15, 2018 at 03:35:12PM -0500, Rob Herring wrote: > > > On Mon, Oct 15, 2018 at 3:12 PM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > > > > > > > Hi Guenter, > > > > > > > > [Just cc'ing the PPC and devicetree folks] > > > > > > > > On Mon, 15 Oct 2018 11:26:37 -0700 Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > > > > > > > > > On Mon, Oct 15, 2018 at 07:25:46PM +1100, Stephen Rothwell wrote: > > > > > > > > > > > > My qemu boots of a powerpc pseries_le_defconfig kernel failed today. > > > > > > > > > > Same here. Interestingly, this only affects little endian pseries > > > > > boots; big endian works fine. I'll try to bisect later. > > > > > > > > > > ALl ppc qemu tests (including big endian pseries) also generate a warning. > > > > > > > > > > WARNING: CPU: 0 PID: 0 at mm/memblock.c:1301 .memblock_alloc_range_nid+0x20/0x68 > > > > > Modules linked in: > > > > > CPU: 0 PID: 0 Comm: swapper Not tainted 4.19.0-rc7-next-20181015 #1 > > > > > NIP: c000000000f99198 LR: c000000000f99490 CTR: c000000000bb8364 > > > > > REGS: c000000001217a78 TRAP: 0700 Not tainted (4.19.0-rc7-next-20181015) > > > > > MSR: 0000000080021000 <CE,ME> CR: 24000422 XER: 20000000 > > > > > IRQMASK: 1 > > > > > GPR00: c000000000f99490 c000000001217d00 c00000000121a500 00000000000000c0 > > > > > GPR04: 0000000000000000 0000000000000000 0000000000000000 ffffffffffffffff > > > > > GPR08: 0000000000000000 00000000000000c0 0000000000000018 00000000000000b7 > > > > > GPR12: 0000000000000040 c000000000fe7840 0000000000000000 0000000000000000 > > > > > GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > > > > GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > > > > GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > > > > > GPR28: c000000000000304 c000000001262088 00000000000000c0 c000000000fea500 > > > > > NIP [c000000000f99198] .memblock_alloc_range_nid+0x20/0x68 > > > > > LR [c000000000f99490] .memblock_alloc_base+0x18/0x48 > > > > > Call Trace: > > > > > [c000000001217d00] [c000000002a00000] 0xc000000002a00000 (unreliable) > > > > > [c000000001217d80] [c000000000f99490] .memblock_alloc_base+0x18/0x48 > > > > > [c000000001217df0] [c000000000f7a274] .allocate_paca_ptrs+0x3c/0x74 > > > > > [c000000001217e70] [c000000000f78bf0] .early_init_devtree+0x288/0x320 > > > > > [c000000001217f10] [c000000000f79b6c] .early_setup+0x80/0x130 > > > > > [c000000001217f90] [c000000000000528] start_here_multiplatform+0x68/0x80 > > > > > > > > > > > > > > > sparc images crash, starting with next-20181009. Bisect with > > > > > next-201810112 points to the merge of devicetree/for-next, though > > > > > devicetree/for-next itself does not have the problem (bisect log > > > > > attached below). The crash is in devicetree code. > > > > > > > > > > Crash logs: > > > > > https://kerneltests.org/builders/qemu-sparc64-next/builds/981/steps/qemubuildcommand_1/logs/stdio > > > > > https://kerneltests.org/builders/qemu-sparc-next/builds/975/steps/qemubuildcommand_1/logs/stdio > > > > > > The sparc crash appears to be related to changes I made. Looking into it. > > > > > > > Let me know if you need me to test anything or do some debugging. > > Well, I'm not having any luck getting sparc qemu to work. Here's what > I'm trying with a sparc32_defconfig kernel: > > $ qemu-system-sparc -kernel .build-sparc/vmlinux -M SS-4 -nographic -m > 256 -no-reboot > rom: requested regions overlap (rom phdr #0: .build-sparc/vmlinux. > free=0x000000000000057a, addr=0x0000000000000000) > qemu-system-sparc: rom check and register reset failed > What is your qemu version ? Guenter > Using zImage or image file didn't work any better. > > Then I tried sticking the kernel in a disk image, but that didn't get > much farther. > > Rob
