Bug 705934 - dccp module is not loadable (kmem_cache_create: duplicate cache ccid2_h)
Summary: dccp module is not loadable (kmem_cache_create: duplicate cache ccid2_h)
Keywords:
Status: CLOSED DUPLICATE of bug 702183
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.0
Hardware: Unspecified
OS: Linux
unspecified
low
Target Milestone: rc
: ---
Assignee: Thomas Graf
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-05-18 22:32 UTC by Keegan McAllister
Modified: 2014-06-18 08:30 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-02-27 13:28:27 UTC
Target Upstream Version:


Attachments (Terms of Use)

Description Keegan McAllister 2011-05-18 22:32:28 UTC
Description of problem:
The dccp kernel module cannot be loaded.

Version-Release number of selected component (if applicable):
All RHEL6 kernels, e.g. 2.6.32-71.29.1.el6.x86_64


Steps to reproduce:

-bash-4.1# uname -a
Linux testmachine 2.6.32-71.29.1.el6.x86_64 #1 SMP Thu Apr 21 16:08:55 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux

-bash-4.1# modprobe dccp
FATAL: Error inserting dccp (/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/net/dccp/dccp.ko): No buffer space available

-bash-4.1# dmesg | tail -n 11
kmem_cache_create: duplicate cache ccid2_h
Pid: 885, comm: modprobe Not tainted 2.6.32-71.29.1.el6.x86_64 #1
Call Trace:
 [<ffffffff8115a1c3>] kmem_cache_create+0x503/0x570
 [<ffffffffa0174154>] ccid_kmem_cache_create+0x64/0x70 [dccp]
 [<ffffffffa018c066>] ccid_initialize_builtins+0x66/0xd9 [dccp]
 [<ffffffffa018c371>] dccp_init+0x298/0x378 [dccp]
 [<ffffffffa018c0d9>] ? dccp_init+0x0/0x378 [dccp]
 [<ffffffff8100a04c>] do_one_initcall+0x3c/0x1d0
 [<ffffffff810af7ef>] sys_init_module+0xdf/0x250
 [<ffffffff81013172>] system_call_fastpath+0x16/0x1b


Additional info:

This is a known bug upstream:
https://bugzilla.kernel.org/show_bug.cgi?id=15196

I can confirm that it is fixed by:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8ed030dd0aa400d18c63861c2c6deb7c38f4edde

This bug is mentioned in passing by:
https://bugzilla.redhat.com/show_bug.cgi?id=702183

Comment 2 RHEL Program Management 2011-10-07 15:35:37 UTC
Since RHEL 6.2 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.

Comment 3 Thomas Graf 2013-02-27 13:28:27 UTC
Fixed by BZ702183

*** This bug has been marked as a duplicate of bug 702183 ***


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