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From: Al Viro <viro@zeniv.linux.org.uk>
To: Zhaoyang Huang <huangzhaoyang@gmail.com>
Cc: "zhaoyang.huang" <zhaoyang.huang@unisoc.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	LKML <linux-kernel@vger.kernel.org>, Ke Wang <ke.wang@unisoc.com>
Subject: Re: [PATCH] fs: use kvmalloc for big coredump file
Date: Sun, 18 Sep 2022 03:42:53 +0100	[thread overview]
Message-ID: <YyaFrarLHYW3HSnu@ZenIV> (raw)
In-Reply-To: <CAGWkznE5LhYq6dWB0zFkF2XdD-gd3MBcQ9fnUJmW59YL1GisMQ@mail.gmail.com>

On Sun, Sep 18, 2022 at 10:29:10AM +0800, Zhaoyang Huang wrote:
> loop Eric W
> 
> On Tue, Aug 30, 2022 at 2:56 PM zhaoyang.huang
> <zhaoyang.huang@unisoc.com> wrote:
> >
> > From: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
> >
> > High order page allocation observed which even introduce kernel panic when generating
> > coredump file, use kvmalloc_array instead of kmalloc_array

Frankly, I would rather cap argc here - if you are trying to feed that many arguments
to your userland helper, your core_pattern is probably bogus.

  reply	other threads:[~2022-09-18  2:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-30  6:55 [PATCH] fs: use kvmalloc for big coredump file zhaoyang.huang
2022-09-18  2:29 ` Zhaoyang Huang
2022-09-18  2:42   ` Al Viro [this message]
2022-09-18 21:55     ` Eric W. Biederman
2022-09-01  1:18 zhaoyang.huang

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