From: Steven Rostedt <rostedt@goodmis.org>
To: Joe Perches <joe@perches.com>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Dmitry Vyukov <dvyukov@google.com>
Subject: Re: [for-next][PATCH 7/7] tracing: Use pr_err() instead of WARN() for memory failures
Date: Sun, 26 Jan 2020 16:40:32 -0500 [thread overview]
Message-ID: <20200126164032.7ac82cc0@rorschach.local.home> (raw)
In-Reply-To: <5b221ac7e49666b76cd9ca368b37e721cfb4aa9c.camel@perches.com>
On Sun, 26 Jan 2020 13:07:36 -0800
Joe Perches <joe@perches.com> wrote:
> > That sounds more generic. This is specific for my own tracing tests to
> > look for. As the point is, it is *not* to dump_stack, and still report
> > the error.
>
> __GFP_NOWARN is available too.
I honestly don't care if there's a dump_stack or not. I just removed the
WARN_ON. If the allocation causes a dump_stack() then that's fine, but
I still like to have a bit more information at what failed to allocate,
than just a offset into a function.
The point of this patch was simply to remove WARN_ON() that caused
fuzzers to fail.
-- Steve
prev parent reply other threads:[~2020-01-26 21:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-26 19:19 [for-next][PATCH 0/7] tracing: Some very old (and some new) patches for 5.6 Steven Rostedt
2020-01-26 19:19 ` [for-next][PATCH 1/7] tracing: Fix very unlikely race of registering two stat tracers Steven Rostedt
2020-01-26 19:19 ` [for-next][PATCH 2/7] tracing: Fix tracing_stat return values in error handling paths Steven Rostedt
2020-01-26 19:19 ` [for-next][PATCH 3/7] tracing: Set kernel_stacks caller size properly Steven Rostedt
2020-01-26 19:19 ` [for-next][PATCH 4/7] tracing: Remove unneeded NULL check Steven Rostedt
2020-01-26 19:19 ` [for-next][PATCH 5/7] tracing: Fix comments about trace/ftrace.h Steven Rostedt
2020-01-26 19:19 ` [for-next][PATCH 6/7] tracing: Decrement trace_array when bootconfig creates an instance Steven Rostedt
2020-01-26 19:19 ` [for-next][PATCH 7/7] tracing: Use pr_err() instead of WARN() for memory failures Steven Rostedt
2020-01-26 20:38 ` Joe Perches
2020-01-26 20:50 ` Steven Rostedt
2020-01-26 21:07 ` Joe Perches
2020-01-26 21:40 ` Steven Rostedt [this message]
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