linux-kernel - Re: [PATCH] scripts/mksysmap: Fix escape chars '$'

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Message-ID: <CAK7LNAQctX4gN=oCPa8Ke+MAsbEj6_yb3zF+Mp=i9aEw28xcQQ@mail.gmail.com>
Date: Sat, 28 Dec 2024 23:26:57 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Mostafa Saleh <smostafa@...gle.com>
Cc: linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org, 
	nathan@...nel.org, nicolas@...sle.eu, ptosi@...gle.com
Subject: Re: [PATCH] scripts/mksysmap: Fix escape chars '$'

On Mon, Dec 23, 2024 at 9:45 PM Mostafa Saleh <smostafa@...gle.com> wrote:
>
> commit b18b047002b7 ("kbuild: change scripts/mksysmap into sed script")
> changed the invocation of the script, to call sed directly without
> shell.
>
> That means, the current extra escape that was added in:
> commit ec336aa83162 ("scripts/mksysmap: Fix badly escaped '$'")
> for the shell is not correct any more, at the moment the stack traces
> for nvhe are corrupted:
> [   22.840904] kvm [190]:  [<ffff80008116dd54>] __kvm_nvhe_$x.220+0x58/0x9c
> [   22.842913] kvm [190]:  [<ffff8000811709bc>] __kvm_nvhe_$x.9+0x44/0x50
> [   22.844112] kvm [190]:  [<ffff80008116f8fc>] __kvm_nvhe___skip_pauth_save+0x4/0x4
>
> With this patch:
> [   25.793513] kvm [192]: nVHE call trace:
> [   25.794141] kvm [192]:  [<ffff80008116dd54>] __kvm_nvhe_hyp_panic+0xb0/0xf4
> [   25.796590] kvm [192]:  [<ffff8000811709bc>] __kvm_nvhe_handle_trap+0xe4/0x188
> [   25.797553] kvm [192]:  [<ffff80008116f8fc>] __kvm_nvhe___skip_pauth_save+0x4/0x4
>
> Fixes: b18b047002b7 ("kbuild: change scripts/mksysmap into sed script")
> Signed-off-by: Mostafa Saleh <smostafa@...gle.com>
> ---


Applied to linux-kbuild.
Thanks.


-- 
Best Regards
Masahiro Yamada