On 12/01/2015, 02:11 AM, Josh Poimboeuf wrote: > When I try to recreate something similar by putting a delay in > enabled_store(), klp_free_patch() just sleeps on its call to > kobject_put() until enabled_store() returns. The unregister stack looks > like: > > [<ffffffff812e966b>] __kernfs_remove+0x1fb/0x380 > [<ffffffff812ea273>] kernfs_remove+0x23/0x40 > [<ffffffff812ec601>] sysfs_remove_dir+0x51/0x80 > [<ffffffff81407fb8>] kobject_del+0x18/0x50 > [<ffffffff8140804a>] kobject_release+0x5a/0x190 > [<ffffffff81407f27>] kobject_put+0x27/0x50
What about _put outside of klp_mutex in klp_unregister_patch (and maybe the other _put's as well)? Plus Li Bin's patch. thanks, -- js suse labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
