From: Christian Brauner <christian.brauner@ubuntu.com>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-kernel@vger.kernel.org
Subject: bpfilter logging write errors in dmesg
Date: Mon, 27 Jul 2020 12:46:36 +0200 [thread overview]
Message-ID: <20200727104636.nuz3u4xb7ba7ue5a@wittgenstein> (raw)
Hey Christoph,
Seems that commit
6955a76fbcd5 ("bpfilter: switch to kernel_write")
causes bpfilter to spew these useless messages in dmesg?
[ 26.356824] Started bpfilter
[ 26.357059] bpfilter: write fail -22
[ 26.396244] Started bpfilter
[ 26.396325] bpfilter: Loaded bpfilter_umh pid 637
[ 26.396542] bpfilter: write fail -22
[ 26.409588] bpfilter: Loaded bpfilter_umh pid 638
[ 26.410790] Started bpfilter
[ 26.410960] bpfilter: write fail -22
[ 26.445718] Started bpfilter
[ 26.445799] bpfilter: Loaded bpfilter_umh pid 640
[ 26.445983] bpfilter: write fail -22
[ 26.451122] bpfilter: read fail 0
[ 26.496497] bpfilter: Loaded bpfilter_umh pid 648
[ 26.497889] Started bpfilter
[ 26.750028] bpfilter: write fail -22
[ 26.768400] Started bpfilter
[ 26.768496] bpfilter: Loaded bpfilter_umh pid 661
[ 26.768699] bpfilter: write fail -22
[ 26.806550] Started bpfilter
[ 26.806616] bpfilter: Loaded bpfilter_umh pid 663
[ 26.864708] bpfilter: write fail -22
[ 26.872345] bpfilter: Loaded bpfilter_umh pid 666
[ 26.873072] Started bpfilter
[ 26.873194] bpfilter: write fail -22
[ 27.295514] kauditd_printk_skb: 22 callbacks suppressed
This is on a pure v5.8-rc7 via make bindep-pkg. I'm not using bpfilter
in any shape or form afaict and haven't seen those messages before and
this seems to be the last change I see.
Thanks!
Christian
next reply other threads:[~2020-07-27 10:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-27 10:46 Christian Brauner [this message]
2020-07-27 13:28 ` bpfilter logging write errors in dmesg Christoph Hellwig
2020-07-27 14:13 ` Christian Brauner
2020-07-27 14:21 ` Christian Brauner
2020-07-27 14:50 ` Christoph Hellwig
2020-07-30 0:59 ` Rodrigo Madera
2020-07-30 6:06 ` Christoph Hellwig
2020-07-30 15:55 ` Rodrigo Madera
2020-07-30 7:09 ` Christian Brauner
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