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From: Eric Dumazet <edumazet@google.com>
To: Shoaib Rao <rao.shoaib@oracle.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	syzbot <syzbot+8760ca6c1ee783ac4abd@syzkaller.appspotmail.com>,
	Andrii Nakryiko <andrii@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>, bpf <bpf@vger.kernel.org>,
	Christian Brauner <christian.brauner@ubuntu.com>,
	Cong Wang <cong.wang@bytedance.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	David Miller <davem@davemloft.net>,
	jamorris@linux.microsoft.com,
	John Fastabend <john.fastabend@gmail.com>,
	Martin KaFai Lau <kafai@fb.com>,
	kpsingh@kernel.org, Jakub Kicinski <kuba@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	"open list:KERNEL SELFTEST FRAMEWORK" 
	<linux-kselftest@vger.kernel.org>,
	netdev <netdev@vger.kernel.org>, Shuah Khan <shuah@kernel.org>,
	Song Liu <songliubraving@fb.com>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
	Al Viro <viro@zeniv.linux.org.uk>, Yonghong Song <yhs@fb.com>
Subject: Re: [syzbot] BUG: sleeping function called from invalid context in _copy_to_iter
Date: Tue, 10 Aug 2021 20:02:44 +0200	[thread overview]
Message-ID: <CANn89iJOFoMa2-Dx+_b8p0-FNNKhYn4DsB3AbtL7zR4bvNR5DA@mail.gmail.com> (raw)
In-Reply-To: <583beba4-2595-5f4c-49a8-f8d999f0ebe7@oracle.com>

On Tue, Aug 10, 2021 at 7:50 PM Shoaib Rao <rao.shoaib@oracle.com> wrote:
>
>
> On 8/10/21 2:19 AM, Eric Dumazet wrote:
> >
> > On 8/9/21 10:31 PM, Shoaib Rao wrote:
> >> On 8/9/21 1:09 PM, Eric Dumazet wrote:
> >>> I am guessing that even your test would trigger the warning,
> >>> if you make sure to include CONFIG_DEBUG_ATOMIC_SLEEP=y in your kernel build.
> >> Eric,
> >>
> >> Thanks for the pointer, have you ever over looked at something when coding?
> >>
> > I _think_ I was trying to help, not shaming you in any way.
> How did the previous email help? I did not get any reply when I asked
> what could be the cause.

Which previous email ? Are you expecting immediate answers to your emails ?
I am not working for Oracle.

> >
> > My question about spinlock/mutex was not sarcastic, you authored
> > 6 official linux patches, there is no evidence for linux kernel expertise.
>
> That is no measure of someones understanding. There are other OS's as
> well. I have worked on Solaris and other *unix* OS's for over 20+ years.
> This was an oversight on my part and I apologize, but instead of
> questioning my expertise it would have been helpful to say what might
> have caused it.


I sent two emails with _useful_ _information_.

If you felt you were attacked, I suggest you take a deep breath,
and read my emails without trying to change their intention and meaning.

If you think my emails were not useful, just ignore them, this is fine by me.

  reply	other threads:[~2021-08-10 18:21 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-08 23:38 syzbot
2021-08-09 17:32 ` Shoaib Rao
2021-08-09 18:06   ` Dmitry Vyukov
2021-08-09 19:16     ` Shoaib Rao
2021-08-09 19:21       ` Dmitry Vyukov
2021-08-09 19:40         ` Shoaib Rao
2021-08-09 20:02           ` Eric Dumazet
2021-08-09 20:09             ` Eric Dumazet
2021-08-09 20:31               ` Shoaib Rao
2021-08-10  9:19                 ` Eric Dumazet
2021-08-10 17:50                   ` Shoaib Rao
2021-08-10 18:02                     ` Eric Dumazet [this message]
2021-08-10 18:29                       ` Shoaib Rao
2021-08-09 20:04           ` Al Viro
2021-08-09 20:16             ` Al Viro
2021-08-09 20:30               ` Shoaib Rao
2021-08-09 20:37               ` Shoaib Rao
2021-08-09 21:41                 ` Al Viro
2021-08-09 22:38                   ` Shoaib Rao
2021-08-09 19:57       ` Al Viro
2021-08-09 20:18         ` Shoaib Rao

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