All of lore.kernel.org
 help / color / mirror / Atom feed
From: Arnd Bergmann <arnd@arndb.de>
To: Arvind Sankar <nivedita@alum.mit.edu>
Cc: Kalle Valo <kvalo@codeaurora.org>,
	linux-wireless <linux-wireless@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	"the arch/x86 maintainers" <x86@kernel.org>,
	Borislav Petkov <bp@suse.de>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Kees Cook <keescook@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: gcc-10: kernel stack is corrupted and fails to boot
Date: Wed, 13 May 2020 23:28:09 +0200	[thread overview]
Message-ID: <CAK8P3a3KpM91+jv6+7KSKFRpwLqf38Lz1wbGhkFFyfDb9oahgA@mail.gmail.com> (raw)
In-Reply-To: <20200513154847.GA158356@rani.riverdale.lan>

On Wed, May 13, 2020 at 5:48 PM Arvind Sankar <nivedita@alum.mit.edu> wrote:
>
> On Wed, May 13, 2020 at 09:50:03AM +0300, Kalle Valo wrote:

> > And now I have a problem :) I first noticed that my x86 testbox is not
> > booting when I compile the kernel with GCC 10.1.0 from crosstool. I
> > didn't get any error messages so I just downgraded the compiler and the
> > kernel was booting fine again. Next I decided to try GCC 10.1 with my
> > x86 laptop and it also failed to boot, but this time I got kernel logs
> > and saw this:
> >
> > Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: start_secodary+0x178/0x180
> >
>
> See https://lore.kernel.org/lkml/20200423161126.GD26021@zn.tnic/

Thanks!

I see the patch in linux-next but not in mainline. I suppose we want it in v5.7
and backported to stable kernels so they can boot when built with gcc-10?

I suppose the only reason that the other architectures don't run into the
problem is that they don't call boot_init_stack_canary() in start_secondary()
though they probably should?

      Arnd

  reply	other threads:[~2020-05-13 21:28 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-09 12:06 [PATCH net-next 1/2] ath10k: fix gcc-10 zero-length-bounds warnings Arnd Bergmann
2020-05-09 12:06 ` Arnd Bergmann
2020-05-09 12:06 ` [PATCH net-next 2/2] ath10k: fix ath10k_pci struct layout Arnd Bergmann
2020-05-09 12:06   ` Arnd Bergmann
2020-05-11 12:05   ` Kalle Valo
2020-05-11 12:05     ` Kalle Valo
2020-05-11 12:17     ` Kalle Valo
2020-05-11 12:17       ` Kalle Valo
2020-05-11 12:39       ` Arnd Bergmann
2020-05-11 12:39         ` Arnd Bergmann
2020-05-13  6:50       ` gcc-10: kernel stack is corrupted and fails to boot Kalle Valo
2020-05-13  8:49         ` Arnd Bergmann
2020-05-13 12:45           ` Kalle Valo
2020-05-13 13:45             ` Arnd Bergmann
2020-05-13 15:31               ` Kalle Valo
2020-05-13 16:00                 ` Arnd Bergmann
2020-05-13 16:07                   ` David Laight
2020-05-14  9:13                 ` Harald Arnesen
2020-05-13 15:48         ` Arvind Sankar
2020-05-13 21:28           ` Arnd Bergmann [this message]
2020-05-13 21:41             ` Borislav Petkov
2020-05-13 21:49               ` Arnd Bergmann
2020-05-13 22:20                 ` Borislav Petkov
2020-05-13 22:51                   ` Arvind Sankar
2020-05-13 23:13                   ` Linus Torvalds
2020-05-13 23:36                     ` Borislav Petkov
2020-05-14  0:11                       ` Linus Torvalds
2020-05-14  0:51                         ` Nick Desaulniers
2020-05-14  2:20                           ` Linus Torvalds
2020-05-14  3:50                             ` Andy Lutomirski
     [not found]                               ` <CAHk-=wgiGxRgJGS-zyer1C_x2MQUVo6iZn0=aJyuFTqJWk-mpA@mail.gmail.com>
2020-05-14  5:22                                 ` Arvind Sankar
2020-05-14  8:40                                   ` Arnd Bergmann
2020-05-14 13:27                                     ` [PATCH] x86: Fix early boot crash on gcc-10, third try Borislav Petkov
2020-05-14 14:45                                       ` Kalle Valo
2020-05-14 15:50                                     ` gcc-10: kernel stack is corrupted and fails to boot Arvind Sankar
2020-05-14  8:11                             ` David Laight
2020-05-13 23:07                 ` Linus Torvalds
2020-05-09 15:48 ` [PATCH net-next 1/2] ath10k: fix gcc-10 zero-length-bounds warnings Gustavo A. R. Silva
2020-05-09 15:48   ` Gustavo A. R. Silva
2020-05-11 12:02   ` Kalle Valo
2020-05-11 12:02     ` Kalle Valo
2020-05-11 12:46     ` Arnd Bergmann
2020-05-11 12:46       ` Arnd Bergmann
2020-05-11 13:09       ` Kalle Valo
2020-05-11 13:09         ` Kalle Valo
2020-05-11 13:47         ` Arnd Bergmann
2020-05-11 13:47           ` Arnd Bergmann
2020-05-12  7:33 ` Kalle Valo
2020-05-12  7:33 ` Kalle Valo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAK8P3a3KpM91+jv6+7KSKFRpwLqf38Lz1wbGhkFFyfDb9oahgA@mail.gmail.com \
    --to=arnd@arndb.de \
    --cc=bp@suse.de \
    --cc=keescook@chromium.org \
    --cc=kvalo@codeaurora.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=ndesaulniers@google.com \
    --cc=nivedita@alum.mit.edu \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.