linux-kernel - Re: [BUG][PANIC] cgroup panics with mmotm for 2.6.28-rc7

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Message-ID: <494AF085.3000802@cn.fujitsu.com>
Date:	Fri, 19 Dec 2008 08:53:25 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Li Zefan <lizf@...fujitsu.com>, Paul Menage <menage@...gle.com>,
	linux-kernel@...r.kernel.org,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Sudhir Kumar <skumar@...ux.vnet.ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Bharata B Rao <bharata.rao@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	libcg-devel <libcg-devel@...ts.sourceforge.net>
Subject: Re: [BUG][PANIC] cgroup panics with mmotm for 2.6.28-rc7

>>>>> kernel BUG at kernel/cgroup.c:392!
>> In latest -mm, this BUG_ON is line 398, and before the below 2 fixlet patches,
>> the BUG_ON is line 392, so I guess you were using older -mm:
>>
>> cgroups-add-inactive-subsystems-to-rootnodesubsys_list-fix.patch
>> cgroups-introduce-link_css_set-to-remove-duplicate-code-fix.patch
>>
>> Could you try the latest -mm kernel, or apply
>> cgroups-add-inactive-subsystems-to-rootnodesubsys_list-fix.patch ?
>>
>> diff -puN kernel/cgroup.c~cgroups-add-inactive-subsystems-to-rootnodesubsys_list-fix kernel/cgroup.c
>> --- a/kernel/cgroup.c~cgroups-add-inactive-subsystems-to-rootnodesubsys_list-fix
>> +++ a/kernel/cgroup.c
>> @@ -2521,7 +2521,7 @@ static void __init cgroup_init_subsys(st
>>  	printk(KERN_INFO "Initializing cgroup subsys %s\n", ss->name);
>>
>>  	/* Create the top cgroup state for this subsystem */
>> -	list_add(&ss->sibling, &rootnode.root_list);
>> +	list_add(&ss->sibling, &rootnode.subsys_list);
>>  	ss->root = &rootnode;
>>  	css = ss->create(ss, dummytop);
>>  	/* We don't handle early failures gracefully */
>>
> 
> Yes, this fix does work for me,
>  

Thanks! And sorry for the silly mistake I made.

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