On Thu, Nov 12, 2009 at 8:31 PM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > On Thu, 2009-11-12 at 20:18 +0100, Matteo Croce wrote: > >> # echo scan >/sys/kernel/debug/kmemleak ; cat >> /sys/kernel/debug/kmemleak >> kmemleak: 197 new suspected memory leaks (see /sys/kernel/debug/kmemleak) >> unreferenced object 0xc5cfea80 (size 192): >> comm "softirq", pid 0, jiffies 14191 >> backtrace: >> [<ffffffff>] 0xffffffff > > that's kinda useless, can you run > > for slab in /sys/kernel/slab/* ; do echo $(cat $slab/objects) in $slab ; done|sort -n > > and tell us which one increases most? > > johannes > kmalloc-64 is definitely getting fat root@alix:~/leak# diff -u leak.1 leak.3 --- leak.1 2000-01-01 01:19:56.817434067 +0100 +++ leak.3 2000-01-01 01:29:48.917438188 +0100 @@ -55,56 +55,56 @@ 21 in /sys/kernel/slab/sigqueue 22 in /sys/kernel/slab/files_cache 24 in /sys/kernel/slab/sock_inode_cache +25 in /sys/kernel/slab/bio-0 25 in /sys/kernel/slab/ext4_alloc_context 25 in /sys/kernel/slab/scsi_sense_cache 26 in /sys/kernel/slab/cfq_queue -27 in /sys/kernel/slab/bio-0 28 in /sys/kernel/slab/file_lock_cache 30 in /sys/kernel/slab/cfq_io_context 30 in /sys/kernel/slab/kmalloc-2048 33 in /sys/kernel/slab/task_xstate 36 in /sys/kernel/slab/ext4_prealloc_space -36 in /sys/kernel/slab/sighand_cache 37 in /sys/kernel/slab/signal_cache 39 in /sys/kernel/slab/inotify_inode_mark_entry 39 in /sys/kernel/slab/jbd2_journal_head 42 in /sys/kernel/slab/fib6_nodes 42 in /sys/kernel/slab/fs_cache 42 in /sys/kernel/slab/inet_peer_cache +42 in /sys/kernel/slab/sighand_cache 42 in /sys/kernel/slab/task_struct 42 in /sys/kernel/slab/uid_cache 46 in /sys/kernel/slab/blkdev_ioc 51 in /sys/kernel/slab/ext4_free_block_extents 51 in /sys/kernel/slab/ip_fib_hash 51 in /sys/kernel/slab/sd_ext_cdb -64 in /sys/kernel/slab/cred_jar 64 in /sys/kernel/slab/jbd2_journal_handle 64 in /sys/kernel/slab/jbd2_revoke_record 64 in /sys/kernel/slab/pid +65 in /sys/kernel/slab/cred_jar 68 in /sys/kernel/slab/kmalloc-128 73 in /sys/kernel/slab/jbd2_revoke_table -82 in /sys/kernel/slab/kmalloc-1024 +81 in /sys/kernel/slab/kmalloc-1024 87 in /sys/kernel/slab/kmalloc-512 102 in /sys/kernel/slab/kmalloc-192 128 in /sys/kernel/slab/kmemleak_scan_area 142 in /sys/kernel/slab/kmalloc-256 147 in /sys/kernel/slab/idr_layer_cache 152 in /sys/kernel/slab/proc_inode_cache -154 in /sys/kernel/slab/filp +161 in /sys/kernel/slab/filp 203 in /sys/kernel/slab/anon_vma 265 in /sys/kernel/slab/shmem_inode_cache 334 in /sys/kernel/slab/kmalloc-96 400 in /sys/kernel/slab/kmalloc-32 -460 in /sys/kernel/slab/vm_area_struct -503 in /sys/kernel/slab/radix_tree_node +453 in /sys/kernel/slab/vm_area_struct 513 in /sys/kernel/slab/kmalloc-8192 -515 in /sys/kernel/slab/skbuff_head_cache +513 in /sys/kernel/slab/skbuff_head_cache +517 in /sys/kernel/slab/radix_tree_node 546 in /sys/kernel/slab/inode_cache 767 in /sys/kernel/slab/kmalloc-16 -795 in /sys/kernel/slab/ext4_inode_cache +825 in /sys/kernel/slab/ext4_inode_cache 1019 in /sys/kernel/slab/kmalloc-8 -2088 in /sys/kernel/slab/buffer_head -2916 in /sys/kernel/slab/dentry +2225 in /sys/kernel/slab/buffer_head +2967 in /sys/kernel/slab/dentry 7088 in /sys/kernel/slab/sysfs_dir_cache -56194 in /sys/kernel/slab/kmalloc-64 -75769 in /sys/kernel/slab/kmemleak_object +113649 in /sys/kernel/slab/kmalloc-64 +133459 in /sys/kernel/slab/kmemleak_object -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
