Re: [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX

[Christophe Leroy]

Le 13/01/2019 à 19:16, Jonathan Neuschäfer a écrit :
> On Thu, Jan 10, 2019 at 03:11:38PM +0000, Christophe Leroy wrote:
> > The purpose of this serie is to:
> > - use BATs with STRICT_KERNEL_RWX on book3s (See patch 12 for details.)
> > - use LTLBs with STRICT_KERNEL_RWX on 8xx (See patch 14 for a few details.)
>
> Hi,
>
> I just tested the whole series on my Wii (I didn't test any intermediate
> steps). Without CONFIG_STRICT_KERNEL_RWX, it seems to work fine, but
> with it, I get the following error while booting:

Argh !

Can you please send the System.map file generated at compile time ?

Thanks
Christophe

> > top of MEM2 @ 13F00000
> >
> > zImage starting: loaded at 0x01000000 (sp: 0x0178afa0)
> > Allocating 0x166b2c8 bytes for kernel...
> > Decompressing (0x00000000 <- 0x01011000:0x01788398)...
> > Done! Decompressed 0xf421f4 bytes
> >
> > Linux/PowerPC load: root=/dev/mmcblk0p2 rootwait console=usbgecko1
> > Finalizing device tree... flat tree at 0x178b7a0
> > [    0.000000] printk: bootconsole [udbg0] enabled
> > [    0.000000] Kernel panic - not syncing: ERROR: Failed to allocate 0x00100000 bytes below 0x00000000.
> > [    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.0.0-rc1-wii-00038-g335347fa417f #1337
> > [    0.000000] Call Trace:
> > [    0.000000] [c0f1ff30] [c00280f0] panic+0x144/0x324 (unreliable)
> > [    0.000000] [c0f1ff90] [c0c18a34] memblock_alloc_base+0x34/0x44
> > [    0.000000] [c0f1ffa0] [c0c071e0] MMU_init_hw+0xcc/0x300
> > [    0.000000] [c0f1ffd0] [c0c06554] MMU_init+0x12c/0x198
> > [    0.000000] [c0f1fff0] [c0003418] start_here+0x40/0x78
> > [    0.000000] Rebooting in 180 seconds..
>
>
> Jonathan