From: Roland McGrath <mcgrathr@google.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Will Drewry <wad@chromium.org>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-doc@vger.kernel.org, kernel-hardening@lists.openwall.com,
netdev@vger.kernel.org, x86@kernel.org, arnd@arndb.de,
davem@davemloft.net, hpa@zytor.com, mingo@redhat.com,
peterz@infradead.org, rdunlap@xenotime.net, tglx@linutronix.de,
luto@mit.edu, eparis@redhat.com, serge.hallyn@canonical.com,
djm@mindrot.org, scarybeasts@gmail.com, indan@nul.nu,
pmoore@redhat.com, akpm@linux-foundation.org, corbet@lwn.net,
eric.dumazet@gmail.com, markus@chromium.org,
coreyb@linux.vnet.ibm.com, keescook@chromium.org
Subject: Re: [PATCH v11 08/12] signal, x86: add SIGSYS info and make it synchronous.
Date: Mon, 27 Feb 2012 09:34:19 -0800 [thread overview]
Message-ID: <CAB=4xhpXB7K88sJXur5VK_-0BA0ZrSeT6UDQv3PS+FyjrSFsOw@mail.gmail.com> (raw)
In-Reply-To: <20120227172208.GC10608@redhat.com>
On Mon, Feb 27, 2012 at 9:22 AM, Oleg Nesterov <oleg@redhat.com> wrote:
> SYNCHRONOUS_MASK just tells dequeue_signal() "pick them first".
> This is needed to make sure that the handler for, say SIGSEGV,
> can use ucontext->ip as a faulting addr.
It's desireable to have these signals handled first just so that the thread
state that provoked the signal is not obscured by an unrelated asynchronous
signal having its handler setup done beforehand.
next prev parent reply other threads:[~2012-02-27 17:34 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-25 3:21 [PATCH v11 01/12] sk_run_filter: add support for custom load_pointer Will Drewry
2012-02-25 3:21 ` [PATCH v11 02/12] net/compat.c,linux/filter.h: share compat_sock_fprog Will Drewry
2012-02-25 3:21 ` [PATCH v11 03/12] seccomp: kill the seccomp_t typedef Will Drewry
2012-02-25 3:21 ` [PATCH v11 04/12] asm/syscall.h: add syscall_get_arch Will Drewry
2012-02-25 3:21 ` [PATCH v11 05/12] arch/x86: add syscall_get_arch to syscall.h Will Drewry
2012-02-25 3:21 ` [PATCH v11 06/12] seccomp: add system call filtering using BPF Will Drewry
2012-02-26 20:28 ` Kees Cook
2012-02-27 16:23 ` Will Drewry
2012-02-27 16:49 ` Eric Paris
2012-02-27 18:55 ` Kees Cook
2012-02-27 19:25 ` Eric Paris
2012-02-27 20:00 ` Kees Cook
2012-02-27 20:34 ` Eric Paris
2012-02-27 20:49 ` Kees Cook
2012-02-27 17:09 ` Oleg Nesterov
2012-02-27 19:54 ` Will Drewry
2012-02-27 20:15 ` Kees Cook
2012-02-28 15:13 ` Oleg Nesterov
2012-02-28 17:18 ` Will Drewry
2012-02-28 6:51 ` Indan Zupancic
2012-02-28 7:52 ` Kees Cook
2012-02-28 17:17 ` Will Drewry
2012-02-28 17:47 ` Markus Gutschke
2012-02-25 3:21 ` [PATCH v11 07/12] seccomp: add SECCOMP_RET_ERRNO Will Drewry
2012-02-25 20:20 ` Kees Cook
2012-02-27 16:22 ` Will Drewry
2012-02-27 17:11 ` Oleg Nesterov
2012-02-27 18:09 ` Kees Cook
2012-02-27 18:14 ` Oleg Nesterov
2012-02-27 18:35 ` Andrew Lutomirski
2012-02-27 19:14 ` Kees Cook
2012-02-27 19:54 ` Will Drewry
2012-02-25 3:21 ` [PATCH v11 08/12] signal, x86: add SIGSYS info and make it synchronous Will Drewry
2012-02-27 17:22 ` Oleg Nesterov
2012-02-27 17:34 ` Roland McGrath [this message]
2012-02-27 18:08 ` Oleg Nesterov
2012-02-27 20:24 ` Will Drewry
2012-02-28 16:02 ` Oleg Nesterov
2012-02-28 17:06 ` Will Drewry
2012-02-25 3:21 ` [PATCH v11 09/12] seccomp: Add SECCOMP_RET_TRAP Will Drewry
2012-02-25 3:21 ` [PATCH v11 10/12] ptrace,seccomp: Add PTRACE_SECCOMP support Will Drewry
2012-02-27 17:54 ` Oleg Nesterov
2012-02-27 19:47 ` Will Drewry
2012-02-28 16:43 ` Oleg Nesterov
2012-02-28 17:04 ` Will Drewry
2012-02-28 18:34 ` Will Drewry
2012-02-29 16:14 ` Oleg Nesterov
2012-02-29 16:33 ` Will Drewry
2012-02-29 17:09 ` Oleg Nesterov
2012-02-29 17:41 ` Roland McGrath
2012-02-29 17:51 ` Will Drewry
2012-02-25 3:21 ` [PATCH v11 11/12] x86: Enable HAVE_ARCH_SECCOMP_FILTER Will Drewry
2012-02-25 3:21 ` [PATCH v11 12/12] Documentation: prctl/seccomp_filter Will Drewry
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