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From: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>
To: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: j.neuschaefer@gmx.net, linux-kernel@vger.kernel.org,
	Paul Mackerras <paulus@samba.org>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX
Date: Sun, 13 Jan 2019 19:16:21 +0100	[thread overview]
Message-ID: <20190113181621.GA22334@latitude> (raw)
In-Reply-To: <cover.1547132681.git.christophe.leroy@c-s.fr>

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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:

> 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

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  parent reply	other threads:[~2019-01-13 18:18 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-10 15:11 [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 01/15] powerpc/mm/32: add base address to mmu_mapin_ram() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 02/15] powerpc/mm/32s: rework mmu_mapin_ram() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 03/15] powerpc/mm/32s: use generic mmu_mapin_ram() for all blocks Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 04/15] powerpc/32: always populate page tables for Abatron BDI Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 05/15] powerpc/wii: remove wii_mmu_mapin_mem2() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 06/15] powerpc/mm/32s: use _PAGE_EXEC in setbat() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 07/15] powerpc/mm/32s: add setibat() clearibat() and update_bats() Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 08/15] powerpc/32: add helper to write into segment registers Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 09/15] powerpc/mmu: add is_strict_kernel_rwx() helper Christophe Leroy
2019-01-10 15:11 ` [PATCH v2 10/15] powerpc/kconfig: define PAGE_SHIFT inside Kconfig Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 11/15] powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 12/15] powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 13/15] powerpc/kconfig: make _etext and data areas alignment configurable on Book3s 32 Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 14/15] powerpc/8xx: don't disable large TLBs with CONFIG_STRICT_KERNEL_RWX Christophe Leroy
2019-01-10 15:12 ` [PATCH v2 15/15] powerpc/kconfig: make _etext and data areas alignment configurable on 8xx Christophe Leroy
2019-01-13 18:16 ` Jonathan Neuschäfer [this message]
2019-01-13 19:43   ` [PATCH v2 00/15] powerpc/32s: Use BATs/LTLBs for STRICT_KERNEL_RWX Christophe Leroy
2019-01-13 21:02     ` Jonathan Neuschäfer
2019-01-14 18:23       ` Christophe Leroy
2019-01-15  0:33         ` Jonathan Neuschäfer
2019-01-15  6:51           ` Christophe Leroy
2019-01-15 10:22             ` Michael Ellerman
2019-01-15 10:57               ` Christophe Leroy
2019-02-20 13:23                 ` Michael Ellerman
2019-02-20 15:30                   ` Christophe Leroy
2019-01-16  0:35             ` Jonathan Neuschäfer
2019-01-16  6:55               ` Christophe Leroy
2019-01-16 13:16                 ` Jonathan Neuschäfer
2019-01-16 13:34                   ` Christophe Leroy
2019-01-16 23:48                     ` Jonathan Neuschäfer
2019-01-17 10:14                       ` Christophe Leroy

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