From: Mike Galbraith <efault@gmx.de>
To: Kees Cook <keescook@chromium.org>
Cc: "David S. Miller" <davem@davemloft.net>,
Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
"Reshetova, Elena" <elena.reshetova@intel.com>,
Network Development <netdev@vger.kernel.org>
Subject: Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection
Date: Thu, 31 Aug 2017 19:19:27 +0200 [thread overview]
Message-ID: <1504199967.666.16.camel@gmx.de> (raw)
In-Reply-To: <CAGXu5jL8Ueuw-DLY+Hz8Jd7NgqgyaaN8OVDicFxmcjBhScebOA@mail.gmail.com>
On Thu, 2017-08-31 at 10:00 -0700, Kees Cook wrote:
>
> Oh! So it's gcc-version sensitive? That's alarming. Is this mapping correct:
>
> 4.8.5: WARN, eventual kernel hang
> 6.3.1, 7.0.1: WARN, but continues working
Yeah, that's correct. I find that troubling, simply because this gcc
version has been through one hell of a lot of kernels with me. Yeah, I
know, that doesn't exempt it from having bugs, but color me suspicious.
-Mike
next prev parent reply other threads:[~2017-08-31 17:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1503996623.8323.20.camel@gmx.de>
[not found] ` <CAGXu5jLYHy6Damtg_Pc4=G76OUiMV3fcY9+Ru1-Lmiq6VWEgsw@mail.gmail.com>
[not found] ` <1504025721.6024.25.camel@gmx.de>
[not found] ` <1504030207.6560.0.camel@gmx.de>
[not found] ` <CAGXu5jKSWiZ8NkgUqO6G8fs5R06bMtdFBmZz9MMX-HAk8nXXNw@mail.gmail.com>
[not found] ` <1504069332.8352.3.camel@gmx.de>
[not found] ` <CAGXu5jJim=r8b+y1qQXtuzm9fPyv1tp9ANebxbCc9ic2c83_Mg@mail.gmail.com>
[not found] ` <1504113212.5852.6.camel@gmx.de>
[not found] ` <CAGXu5jJd80-0PJvB51x9ZDETPSoAtRVQ7dQ6HWwd0DYpKBgPFA@mail.gmail.com>
[not found] ` <1504115735.5852.11.camel@gmx.de>
[not found] ` <CAGXu5j+BLj6_LPfKs-vts-mbyJHu8D--WrmWbiT8Zbt-iD65KA@mail.gmail.com>
[not found] ` <CAGXu5j+neSYAqb8=r42=jQ0LsJTGjCSdpgc9Hv+ipyAFURbCdw@mail.gmail.com>
[not found] ` <1504145389.23109.4.camel@gmx.de>
[not found] ` <CAGXu5jLKXEDdSpxxVM5oHHUWKbSTozx4FZRn70bQm4tQAhMqUQ@mail.gmail.com>
[not found] ` <1504149176.23109.9.camel@gmx.de>
2017-08-31 4:01 ` tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection Kees Cook
2017-08-31 4:10 ` Kees Cook
2017-08-31 4:38 ` Mike Galbraith
2017-08-31 13:58 ` Mike Galbraith
2017-08-31 17:00 ` Kees Cook
2017-08-31 17:19 ` Mike Galbraith [this message]
2017-08-31 18:45 ` Kees Cook
2017-09-01 6:57 ` Mike Galbraith
2017-09-01 13:09 ` Mike Galbraith
2017-09-01 17:12 ` Kees Cook
2017-09-01 17:52 ` Mike Galbraith
2017-09-01 18:58 ` Kees Cook
2017-09-01 19:24 ` Mike Galbraith
2017-09-01 19:40 ` Kees Cook
2017-08-31 19:28 ` Kees Cook
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