From: Ignacy Gawedzki <ignacy.gawedzki@green-communications.fr>
To: netdev@vger.kernel.org
Subject: Attempt to auto-load em_cmp.ko results in negative module refcnt
Date: Mon, 16 Feb 2015 11:59:12 +0100 [thread overview]
Message-ID: <20150216105912.GA16798@zenon.in.qult.net> (raw)
Hi,
This simple test case
tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 root classid 1: htb rate 1Gbit
tc class add dev eth0 parent 1: classid 1:1 htb rate 1Gbit
tc filter add dev eth0 parent 1: basic match 'cmp(u8 at 0 eq 0)' classid 1:1
fails with the following
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
if em_cmp.ko is not loaded beforehand.
After that, lsmod shows that em_cmp.ko is loaded indeed, but its usage count
is -1 and an attempd to unload the module results in a "BUG at
kernel/module.c:752".
This has been broken pretty recently, I'm currently attempting a git bisect on
this.
--
Ignacy Gawędzki
R&D Engineer
Green Communications
next reply other threads:[~2015-02-16 11:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-16 10:59 Ignacy Gawedzki [this message]
2015-02-16 15:03 ` Attempt to auto-load em_cmp.ko results in negative module refcnt Ignacy Gawedzki
2015-02-16 18:13 ` [PATCH net] ematch: Fix auto-loading of ematch modules Ignacy Gawędzki
2015-02-16 18:36 ` Cong Wang
2015-02-16 18:50 ` Ignacy Gawędzki
2015-02-17 18:00 ` Cong Wang
2015-02-17 19:15 ` [PATCH net v2] " Ignacy Gawędzki
2015-02-18 5:17 ` Cong Wang
2015-02-20 20:31 ` David Miller
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