From: Borislav Petkov <bp@alien8.de>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "Kees Cook" <keescook@chromium.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Oleg Nesterov" <oleg@redhat.com>,
"Denys Vlasenko" <vda.linux@googlemail.com>,
"Brian Gerst" <brgerst@gmail.com>,
"Frédéric Weisbecker" <fweisbec@gmail.com>,
"X86 ML" <x86@kernel.org>, "Rik van Riel" <riel@redhat.com>
Subject: Re: [PATCH v2 03/14] notifiers: Assert that RCU is watching in notify_die
Date: Mon, 22 Jun 2015 18:33:33 +0200 [thread overview]
Message-ID: <20150622163333.GC20244@pd.tnic> (raw)
In-Reply-To: <CALCETrXaGBs_1j_fv894h=xrfdBLt57MM9i+YH_PDR3GDteoQQ@mail.gmail.com>
On Mon, Jun 22, 2015 at 09:26:13AM -0700, Andy Lutomirski wrote:
> notify_die is misnamed and has little to do with death. It's really
> just notifying about an exception, and we might end up oopsing,
> sending a signal, or neither.
But if we oops and wedge solid afterwards, it might happen that only the
first splat comes out on the console, no? And that will be the lockdep
splat which would be useless for debugging the actual problem...
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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next prev parent reply other threads:[~2015-06-22 16:33 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 19:08 [PATCH v2 00/14] x86: Rewrite exit-to-userspace code Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 01/14] uml: Fix do_signal() prototype Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 02/14] context_tracking: Add ct_state and CT_WARN_ON Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 03/14] notifiers: Assert that RCU is watching in notify_die Andy Lutomirski
2015-06-22 11:36 ` Borislav Petkov
2015-06-22 16:26 ` Andy Lutomirski
2015-06-22 16:33 ` Borislav Petkov [this message]
2015-06-22 17:03 ` Andy Lutomirski
2015-06-22 17:24 ` Borislav Petkov
2015-06-22 17:37 ` Andy Lutomirski
2015-06-22 18:15 ` Borislav Petkov
2015-06-22 19:48 ` Andy Lutomirski
2015-06-23 8:56 ` Ingo Molnar
2015-06-23 11:08 ` Borislav Petkov
2015-06-18 19:08 ` [PATCH v2 04/14] x86: Move C entry and exit code to arch/x86/entry/common.c Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 05/14] x86/traps: Assert that we're in CONTEXT_KERNEL in exception entries Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 06/14] x86/entry: Add enter_from_user_mode and use it in syscalls Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 07/14] x86/entry: Add new, comprehensible entry and exit hooks Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 08/14] x86/entry/64: Really create an error-entry-from-usermode code path Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 09/14] x86/entry/64: Migrate 64-bit and compat syscalls to new exit hooks Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 10/14] x86/asm/entry/64: Save all regs on interrupt entry Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 11/14] x86/asm/entry/64: Simplify irq stack pt_regs handling Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 12/14] x86/asm/entry/64: Migrate error and interrupt exit work to C Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 13/14] x86/entry: Remove exception_enter from trap handlers Andy Lutomirski
2015-06-18 19:08 ` [PATCH v2 14/14] x86/entry: Remove SCHEDULE_USER and asm/context-tracking.h Andy Lutomirski
2015-06-22 19:50 ` [PATCH v2 00/14] x86: Rewrite exit-to-userspace code Andy Lutomirski
2015-06-23 5:32 ` Andy Lutomirski
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