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Date: Tue, 10 Aug 2021 11:19:26 +0200 From: Eric Dumazet <eric.dumazet@...il.com> To: Shoaib Rao <rao.shoaib@...cle.com>, Eric Dumazet <edumazet@...gle.com> Cc: Dmitry Vyukov <dvyukov@...gle.com>, syzbot <syzbot+8760ca6c1ee783ac4abd@...kaller.appspotmail.com>, Andrii Nakryiko <andrii@...nel.org>, Alexei Starovoitov <ast@...nel.org>, bpf <bpf@...r.kernel.org>, Christian Brauner <christian.brauner@...ntu.com>, Cong Wang <cong.wang@...edance.com>, Daniel Borkmann <daniel@...earbox.net>, David Miller <davem@...emloft.net>, jamorris@...ux.microsoft.com, John Fastabend <john.fastabend@...il.com>, Martin KaFai Lau <kafai@...com>, kpsingh@...nel.org, Jakub Kicinski <kuba@...nel.org>, LKML <linux-kernel@...r.kernel.org>, "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>, netdev <netdev@...r.kernel.org>, Shuah Khan <shuah@...nel.org>, Song Liu <songliubraving@...com>, syzkaller-bugs <syzkaller-bugs@...glegroups.com>, Al Viro <viro@...iv.linux.org.uk>, Yonghong Song <yhs@...com> Subject: Re: [syzbot] BUG: sleeping function called from invalid context in _copy_to_iter 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. My question about spinlock/mutex was not sarcastic, you authored 6 official linux patches, there is no evidence for linux kernel expertise.
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