From: riel@surriel.com (Rik van Riel)
To: kernelnewbies@lists.kernelnewbies.org
Subject: userspace app receive SIGSEGV, but not is crash, why?
Date: Tue, 11 Oct 2016 03:54:23 -0400 [thread overview]
Message-ID: <1476172463.2922.7.camel@surriel.com> (raw)
In-Reply-To: <CAN-HW4Q6SdGa_16L-LcHPwar72e8Y23dxZyny0DvSiExJbiwgA@mail.gmail.com>
On Mon, 2016-10-10 at 22:36 +0800, Lucha Chen wrote:
> Dear All,
> ? userspace app receive SIGSEGV, but not crash, why?
> ? The mtk kernel log is :
> <4>[67330.976640] -(6)[25390:ndroid.systemui][25390:ndroid.systemui]
> sig 11 to [25390:ndroid.systemui] stat=R
>
The userspace application can tell the kernel
it has a handler for SIGSEGV. If it does that,
the kernel will make sure that the handler is
invoked when SIGSEGV is sent to the process.
prev parent reply other threads:[~2016-10-11 7:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-10 14:36 userspace app receive SIGSEGV, but not is crash, why? Lucha Chen
2016-10-11 7:54 ` Rik van Riel [this message]
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