[PATCH] doc: kgdb: Add description about rodata=off kernel parameter

[PATCH] doc: kgdb: Add description about rodata=off kernel parameter

[junan]

STRICT_KERNEL_RWX can not be turned off throught menuconfig on some
architectures, pass "rodata=off" to the kernel in this case.

Tested with qemu on arm64.

Signed-off-by: junan <junan76@163.com>
Suggested-by: Will Deacon <will@kernel.org>
---
 Documentation/process/debugging/kgdb.rst | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/process/debugging/kgdb.rst b/Documentation/process/debugging/kgdb.rst
index b29b0aac2717..f2c57de7992f 100644
--- a/Documentation/process/debugging/kgdb.rst
+++ b/Documentation/process/debugging/kgdb.rst
@@ -380,6 +380,13 @@ virtual address where the kernel image is mapped and confuses
 gdb which resolves addresses of kernel symbols from the symbol table
 of vmlinux.
 
+Kernel parameter: ``rodata``
+----------------------------
+
+``CONFIG_STRICT_KERNEL_RWX`` is turned on by default and is not
+visible to menuconfig on some architectures (arm64 for example),
+you can pass ``rodata=off`` to the kernel in this case.
+
 Using kdb
 =========
 
-- 
2.43.0

Re: [PATCH] doc: kgdb: Add description about rodata=off kernel parameter

[Daniel Thompson]

On Fri, Jan 16, 2026 at 01:03:13PM +0800, junan wrote:
> STRICT_KERNEL_RWX can not be turned off throught menuconfig on some
> architectures, pass "rodata=off" to the kernel in this case.
>
> Tested with qemu on arm64.
>
> Signed-off-by: junan <junan76@163.com>
> Suggested-by: Will Deacon <will@kernel.org>

Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org>

Jonathan: do you want to take this or should I take it via the kgdb
tree?


Daniel.

Re: [PATCH] doc: kgdb: Add description about rodata=off kernel parameter

[Jonathan Corbet]

Daniel Thompson <danielt@kernel.org> writes:

> On Fri, Jan 16, 2026 at 01:03:13PM +0800, junan wrote:
>> STRICT_KERNEL_RWX can not be turned off throught menuconfig on some
>> architectures, pass "rodata=off" to the kernel in this case.
>>
>> Tested with qemu on arm64.
>>
>> Signed-off-by: junan <junan76@163.com>
>> Suggested-by: Will Deacon <will@kernel.org>
>
> Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
>
> Jonathan: do you want to take this or should I take it via the kgdb
> tree?

I'm fine either way; I'll pick it up shortly unless you say you've
already done so.

Thanks,

jon

Re: [PATCH] doc: kgdb: Add description about rodata=off kernel parameter

[Jonathan Corbet]

Jonathan Corbet <corbet@lwn.net> writes:

> Daniel Thompson <danielt@kernel.org> writes:
>
>> On Fri, Jan 16, 2026 at 01:03:13PM +0800, junan wrote:
>>> STRICT_KERNEL_RWX can not be turned off throught menuconfig on some
>>> architectures, pass "rodata=off" to the kernel in this case.
>>>
>>> Tested with qemu on arm64.
>>>
>>> Signed-off-by: junan <junan76@163.com>
>>> Suggested-by: Will Deacon <will@kernel.org>
>>
>> Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
>>
>> Jonathan: do you want to take this or should I take it via the kgdb
>> tree?
>
> I'm fine either way; I'll pick it up shortly unless you say you've
> already done so.

...and I have just done that, thanks.

jon