On Sat, Apr 27, 2013 at 05:53:48PM +0800, Li Zefan wrote: > rebuild_sched_domains() might pass doms with offlined cpu to > partition_sched_domains(), which results in an oops: > > general protection fault: 0000 [#1] SMP > ... > RIP: 0010:[<ffffffff81077a1e>] [<ffffffff81077a1e>] get_group+0x6e/0x90 > ... > Call Trace: > [<ffffffff8107f07c>] build_sched_domains+0x70c/0xcb0 > [<ffffffff8107f2a7>] ? build_sched_domains+0x937/0xcb0 > [<ffffffff81173f64>] ? kfree+0xe4/0x1b0 > [<ffffffff8107f6e0>] ? partition_sched_domains+0xc0/0x470 > [<ffffffff8107f905>] partition_sched_domains+0x2e5/0x470 > [<ffffffff8107f6e0>] ? partition_sched_domains+0xc0/0x470 > [<ffffffff810c9007>] ? generate_sched_domains+0xc7/0x530 > [<ffffffff810c94a8>] rebuild_sched_domains_locked+0x38/0x70 > [<ffffffff810cb4a4>] cpuset_write_resmask+0x1a4/0x500 > [<ffffffff810c8700>] ? cpuset_mount+0xe0/0xe0 > [<ffffffff810c7f50>] ? cpuset_read_u64+0x100/0x100 > [<ffffffff810be890>] ? cgroup_iter_next+0x90/0x90 > [<ffffffff810cb300>] ? cpuset_css_offline+0x70/0x70 > [<ffffffff810c1a73>] cgroup_file_write+0x133/0x2e0 > [<ffffffff8118995b>] vfs_write+0xcb/0x130 > [<ffffffff8118a174>] sys_write+0x64/0xa0 > > Reported-by: Li Zhong <zhong@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx> Applied 1-2 to cgroup/for-3.10. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
