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From: Guo Ren <guoren@kernel.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: "Guo Ren" <ren_guo@c-sky.com>, 瞿仙淼 <xianmiao_qu@c-sky.com>,
	尚云海 <yunhai_shang@c-sky.com>,
	"Guo Ren" <guoren@linux.alibaba.com>,
	linux-csky@vger.kernel.org,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] csky: Fixup calltrace panic
Date: Fri, 22 May 2020 23:28:25 +0800
Message-ID: <CAJF2gTQj+FzDMM7YNX=iwjpJL3zfuDDua34o+m4pK0rdRYFPwg@mail.gmail.com> (raw)
In-Reply-To: <45e1a784-f8fe-5f17-45ca-3eb5453d4bb4@roeck-us.net>

Hi,

On Thu, May 21, 2020 at 10:46 PM Guenter Roeck <linux@roeck-us.net> wrote:
> > We tested it with https://github.com/c-sky/gcc (gcc-6.3)
> >
>
> That won't work for me. You really might want to consider
> supporting upstream gcc. I'll try disabling CONFIG_STACKTRACE
> for csky build tests. If that doesn't work, I may have to
> disable affected csky build tests for the time being.
>
> Guenter

Not only CONFIG_STACKTRACE,
Disable FRAME_POINTER (Kernel hacking -> Compile the kernel with frame pointers)

because in Makefile:
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -mbacktrace
endif

We'll upstream -mbacktrace to gcc 9 soon, sorry for the confusion. Thx
for your work on maintaining.

-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/

  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-17 17:52 Guenter Roeck
2020-05-20  7:50 ` Guo Ren
2020-05-21 14:46   ` Guenter Roeck
2020-05-22 15:28     ` Guo Ren [this message]
2020-05-22 21:28       ` Guenter Roeck

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