From: Eric Dumazet <eric.dumazet@gmail.com>
To: "Jason A. Donenfeld" <Jason@zx2c4.com>,
Eric Dumazet <eric.dumazet@gmail.com>
Cc: syzbot <syzbot+0251e883fe39e7a0cb0a@syzkaller.appspotmail.com>,
"David Miller" <davem@davemloft.net>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
jhs@mojatatu.com, "Jiří Pírko" <jiri@resnulli.us>,
"Krzysztof Kozlowski" <krzk@kernel.org>,
kuba@kernel.org, kvalo@codeaurora.org, leon@kernel.org,
LKML <linux-kernel@vger.kernel.org>,
linux-kselftest@vger.kernel.org, Netdev <netdev@vger.kernel.org>,
"Shuah Khan" <shuah@kernel.org>,
syzkaller-bugs@googlegroups.com,
"Thomas Gleixner" <tglx@linutronix.de>,
vivien.didelot@gmail.com, "Cong Wang" <xiyou.wangcong@gmail.com>
Subject: Re: INFO: rcu detected stall in wg_packet_tx_worker
Date: Sun, 26 Apr 2020 14:53:42 -0700 [thread overview]
Message-ID: <85e76f66-f807-ad12-df9d-0805b68133fa@gmail.com> (raw)
In-Reply-To: <CAHmME9rR-_KvENZyBrRhYNWD+hVD-FraxPJiofsmuXBh651QXw@mail.gmail.com>
On 4/26/20 1:46 PM, Jason A. Donenfeld wrote:
>
> Ah, whew, okay. I had just begun instrumenting sfq (the highly
> technical term for "adding printks everywhere") to figure out what's
> going on. Looks like you've got a handle on it, so I'll let you have
> at it.
Yes, syzbot manages to put a zero in q->scaled_quantum
I will send a fix.
>
> On the brighter side, it seems like Dmitry's and my effort to get full
> coverage of WireGuard has paid off in the sense that tons of packets
> wind up being shoveled through it in one way or another, which is
> good.
>
Sure !
next prev parent reply other threads:[~2020-04-26 21:53 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-26 17:38 INFO: rcu detected stall in wg_packet_tx_worker syzbot
2020-04-26 17:57 ` syzbot
2020-04-26 19:40 ` Eric Dumazet
2020-04-26 19:42 ` Jason A. Donenfeld
2020-04-26 19:52 ` Jason A. Donenfeld
2020-04-26 19:58 ` Jason A. Donenfeld
2020-04-26 20:26 ` Eric Dumazet
2020-04-26 20:38 ` Eric Dumazet
2020-04-26 20:46 ` Jason A. Donenfeld
2020-04-26 21:53 ` Eric Dumazet [this message]
2020-05-04 11:23 ` Jason A. Donenfeld
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