On Sat, Apr 23, 2022 at 1:41 AM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > On Sat, Apr 23, 2022 at 12:04:31AM +0200, Arnd Bergmann wrote: > > On Fri, Apr 22, 2022 at 10:55 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > > On 4/22/22 12:16, Arnd Bergmann wrote: > > > > On Fri, Apr 22, 2022 at 7:05 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > > > > > > > Which machine did you hit this on? Is this on hardware or in qemu? > > > > > > > qemu, as always. borzoi, spitz, terrier, tosa, z2, and sx1 fail. > > > Also, I just noticed that the failure is not always the same. > > > z2 fails to boot from initrd, and sx1 fails to boot completely. > > > > That's a lot of machines failing, I hope at least we got the same bugs more > > than once here. > > > > For the I/O space, I found now that PXA was not using the standard > > virtual I/O address yet, but instead used a NULL-based offset. > > > > I'm not entirely happy with this patch, but this is an outline of what > > I think we need to fix that: https://pastebin.com/3nVgQsEw > > This one is probably incomplete, at least it breaks sa1100 for now, > > and it adds a bogus CONFIG_PCI dependency. I'm also not sure > > in what way the last patch in the series triggers it, rather than the > > one that removed mach/io.h. > > > > I had sx1 booting in qemu at least, with the omap1 multiplatform series only. > > If you have a custom config for this one, make sure you get the right > > DEBUG_LL address. > > > > > I'll do another round of bisects. > > > > Here is the bisect for the sx1 boot failure. Odd, I can't reproduce this at all. Do you get any console output at all for this? Is this the plain omap1_defconfig, or something else? One thing I keep having to apply myself is this snippet: diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index 0bfad62ea858..87c695703580 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -441,7 +441,6 @@ __arm925_setup: #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH mov r0, #4 @ disable write-back on caches explicitly - mcr p15, 7, r0, c15, c0, 0 #endif adr r5, arm925_crval I don't remember what the story is behind this, but I can't actually manage to boot omap1_defconfig on qemu with the instruction intact. Arnd
