Commit 31daa343 authored by Dave Vasilevsky's avatar Dave Vasilevsky Committed by Andrew Morton
Browse files

crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32 

Fixes boot failures on 6.9 on PPC_BOOK3S_32 machines using Open Firmware. 
On these machines, the kernel refuses to boot from non-zero
PHYSICAL_START, which occurs when CRASH_DUMP is on.

Since most PPC_BOOK3S_32 machines boot via Open Firmware, it should
default to off for them.  Users booting via some other mechanism can still
turn it on explicitly.

Does not change the default on any other architectures for the
time being.

Link: https://lkml.kernel.org/r/20240917163720.1644584-1-dave@vasilevsky.ca


Fixes: 75bc255a ("crash: clean up kdump related config items")
Signed-off-by: default avatarDave Vasilevsky <dave@vasilevsky.ca>
Reported-by: default avatarReimar Döffinger <Reimar.Doeffinger@gmx.de>
Closes: https://lists.debian.org/debian-powerpc/2024/07/msg00001.html


Acked-by: Michael Ellerman <mpe@ellerman.id.au>	[powerpc]
Acked-by: default avatarBaoquan He <bhe@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent a4a282da

arch/arm/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -1598,6 +1598,9 @@ config ATAGS_PROC 
config ARCH_SUPPORTS_CRASH_DUMP

	def_bool y



config ARCH_DEFAULT_CRASH_DUMP

	def_bool y



config AUTO_ZRELADDR

	bool "Auto calculation of the decompressed kernel image address" if !ARCH_MULTIPLATFORM

	default !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)

arch/arm64/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -1576,6 +1576,9 @@ config ARCH_DEFAULT_KEXEC_IMAGE_VERIFY_SIG 
config ARCH_SUPPORTS_CRASH_DUMP

	def_bool y



config ARCH_DEFAULT_CRASH_DUMP

	def_bool y



config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION

	def_bool CRASH_RESERVE

arch/loongarch/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -604,6 +604,9 @@ config ARCH_SUPPORTS_KEXEC 
config ARCH_SUPPORTS_CRASH_DUMP

	def_bool y



config ARCH_DEFAULT_CRASH_DUMP

	def_bool y



config ARCH_SELECTS_CRASH_DUMP

	def_bool y

	depends on CRASH_DUMP

arch/mips/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -2876,6 +2876,9 @@ config ARCH_SUPPORTS_KEXEC 
config ARCH_SUPPORTS_CRASH_DUMP

	def_bool y



config ARCH_DEFAULT_CRASH_DUMP

	def_bool y



config PHYSICAL_START

	hex "Physical address where the kernel is loaded"

	default "0xffffffff84000000"

arch/powerpc/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -684,6 +684,10 @@ config RELOCATABLE_TEST 
config ARCH_SUPPORTS_CRASH_DUMP

	def_bool PPC64 || PPC_BOOK3S_32 || PPC_85xx || (44x && !SMP)



config ARCH_DEFAULT_CRASH_DUMP

	bool

	default y if !PPC_BOOK3S_32



config ARCH_SELECTS_CRASH_DUMP

	def_bool y

	depends on CRASH_DUMP