From: Pierre Ossman <drzeus@drzeus.cx>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
bugme-daemon@bugzilla.kernel.org, linux-mm@kvack.org
Subject: Re: [Bug 12832] New: kernel leaks a lot of memory
Date: Mon, 9 Mar 2009 08:40:45 +0100 [thread overview]
Message-ID: <20090309084045.2c652fbf@mjolnir.ossman.eu> (raw)
In-Reply-To: <20090309020701.GA381@localhost>
[-- Attachment #1: Type: text/plain, Size: 12482 bytes --]
On Mon, 9 Mar 2009 10:07:01 +0800
Wu Fengguang <fengguang.wu@intel.com> wrote:
> On Mon, Mar 09, 2009 at 09:37:42AM +0800, Wu Fengguang wrote:
> >
> > The "free" pages in sysrq mem-info report should be equal to "MemFree"
> > in /proc/meminfo. So I'd expect meminfo numbers to be different in
> > .26/.27 as well.
> >
> > Maybe the memory is taken by some user space program, so it would be
> > helpful to know the numbers in /proc/meminfo, /proc/vmstat and
> > /proc/zoneinfo.
>
> And maybe piggyback /proc/slabinfo in case it is a kernel bug :-)
>
Big dump of relevant /proc files:
[root@builder ~]# free
total used free shared buffers cached
Mem: 509108 236988 272120 0 228 14760
-/+ buffers/cache: 222000 287108
Swap: 524280 228 524052
[root@builder ~]# cat /proc/meminfo
MemTotal: 509108 kB
MemFree: 272172 kB
Buffers: 240 kB
Cached: 14788 kB
SwapCached: 64 kB
Active: 32544 kB
Inactive: 5900 kB
SwapTotal: 524280 kB
SwapFree: 524052 kB
Dirty: 5980 kB
Writeback: 0 kB
AnonPages: 23404 kB
Mapped: 8648 kB
Slab: 23148 kB
SReclaimable: 5420 kB
SUnreclaim: 17728 kB
PageTables: 3324 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 778832 kB
Committed_AS: 85196 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 1740 kB
VmallocChunk: 34359736619 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 2032
DirectMap2M: 18446744073709551613
DirectMap1G: 0
[root@builder ~]# cat /proc/vmstat
nr_free_pages 68035
nr_inactive 1479
nr_active 8137
nr_anon_pages 5851
nr_mapped 2162
nr_file_pages 3777
nr_dirty 132
nr_writeback 0
nr_slab_reclaimable 1354
nr_slab_unreclaimable 4440
nr_page_table_pages 831
nr_unstable 0
nr_bounce 0
nr_vmscan_write 324
nr_writeback_temp 0
numa_hit 18985527
numa_miss 0
numa_foreign 0
numa_interleave 44220
numa_local 18985527
numa_other 0
pgpgin 379025
pgpgout 820238
pswpin 16
pswpout 57
pgalloc_dma 295454
pgalloc_dma32 18721928
pgalloc_normal 0
pgalloc_movable 0
pgfree 19085491
pgactivate 60797
pgdeactivate 47199
pgfault 25624481
pgmajfault 2490
pgrefill_dma 8144
pgrefill_dma32 103508
pgrefill_normal 0
pgrefill_movable 0
pgsteal_dma 4503
pgsteal_dma32 179395
pgsteal_normal 0
pgsteal_movable 0
pgscan_kswapd_dma 4999
pgscan_kswapd_dma32 180546
pgscan_kswapd_normal 0
pgscan_kswapd_movable 0
pgscan_direct_dma 0
pgscan_direct_dma32 384
pgscan_direct_normal 0
pgscan_direct_movable 0
pginodesteal 0
slabs_scanned 153856
kswapd_steal 183628
kswapd_inodesteal 35303
pageoutrun 3794
allocstall 3
pgrotated 72
htlb_buddy_alloc_success 0
htlb_buddy_alloc_fail 0
[root@builder ~]# cat /proc/zoneinfo
Node 0, zone DMA
pages free 2524
min 12
low 15
high 18
scanned 0 (a: 27 i: 24)
spanned 4096
present 2180
nr_free_pages 2524
nr_inactive 0
nr_active 8
nr_anon_pages 8
nr_mapped 0
nr_file_pages 0
nr_dirty 0
nr_writeback 0
nr_slab_reclaimable 16
nr_slab_unreclaimable 7
nr_page_table_pages 15
nr_unstable 0
nr_bounce 0
nr_vmscan_write 292
nr_writeback_temp 0
numa_hit 295370
numa_miss 0
numa_foreign 0
numa_interleave 0
numa_local 295370
numa_other 0
protection: (0, 489, 489, 489)
pagesets
cpu: 0
count: 0
high: 0
batch: 1
vm stats threshold: 2
all_unreclaimable: 0
prev_priority: 12
start_pfn: 0
Node 0, zone DMA32
pages free 65515
min 700
low 875
high 1050
scanned 0 (a: 0 i: 0)
spanned 126960
present 125224
nr_free_pages 65515
nr_inactive 1482
nr_active 8137
nr_anon_pages 5843
nr_mapped 2162
nr_file_pages 3789
nr_dirty 128
nr_writeback 0
nr_slab_reclaimable 1331
nr_slab_unreclaimable 4429
nr_page_table_pages 816
nr_unstable 0
nr_bounce 0
nr_vmscan_write 32
nr_writeback_temp 0
numa_hit 18690260
numa_miss 0
numa_foreign 0
numa_interleave 44220
numa_local 18690260
numa_other 0
protection: (0, 0, 0, 0)
pagesets
cpu: 0
count: 69
high: 186
batch: 31
vm stats threshold: 6
all_unreclaimable: 0
prev_priority: 12
start_pfn: 4096
[root@builder ~]# cat /proc/slabinfo
slabinfo - version: 2.1
# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail>
rpc_inode_cache 39 39 832 39 8 : tunables 0 0 0 : slabdata 1 1 0
nf_conntrack_expect 0 0 240 34 2 : tunables 0 0 0 : slabdata 0 0 0
UDPv6 34 34 960 34 8 : tunables 0 0 0 : slabdata 1 1 0
TCPv6 18 18 1792 18 8 : tunables 0 0 0 : slabdata 1 1 0
kmalloc_dma-512 32 32 512 32 4 : tunables 0 0 0 : slabdata 1 1 0
dm_snap_pending_exception 144 144 112 36 1 : tunables 0 0 0 : slabdata 4 4 0
kcopyd_job 0 0 360 45 4 : tunables 0 0 0 : slabdata 0 0 0
dm_uevent 0 0 2608 12 8 : tunables 0 0 0 : slabdata 0 0 0
ext3_inode_cache 387 1554 768 42 8 : tunables 0 0 0 : slabdata 37 37 0
ext3_xattr 46 46 88 46 1 : tunables 0 0 0 : slabdata 1 1 0
journal_handle 170 170 24 170 1 : tunables 0 0 0 : slabdata 1 1 0
journal_head 42 42 96 42 1 : tunables 0 0 0 : slabdata 1 1 0
revoke_table 256 256 16 256 1 : tunables 0 0 0 : slabdata 1 1 0
revoke_record 128 128 32 128 1 : tunables 0 0 0 : slabdata 1 1 0
cfq_io_context 44 48 168 24 1 : tunables 0 0 0 : slabdata 2 2 0
mqueue_inode_cache 36 36 896 36 8 : tunables 0 0 0 : slabdata 1 1 0
isofs_inode_cache 0 0 616 26 4 : tunables 0 0 0 : slabdata 0 0 0
hugetlbfs_inode_cache 28 28 584 28 4 : tunables 0 0 0 : slabdata 1 1 0
dquot 0 0 256 32 2 : tunables 0 0 0 : slabdata 0 0 0
inotify_event_cache 612 612 40 102 1 : tunables 0 0 0 : slabdata 6 6 0
fasync_cache 313798 313820 24 170 1 : tunables 0 0 0 : slabdata 1846 1846 0
shmem_inode_cache 735 738 792 41 8 : tunables 0 0 0 : slabdata 18 18 0
pid_namespace 0 0 2104 15 8 : tunables 0 0 0 : slabdata 0 0 0
nsproxy 0 0 56 73 1 : tunables 0 0 0 : slabdata 0 0 0
UNIX 92 92 704 46 8 : tunables 0 0 0 : slabdata 2 2 0
xfrm_dst_cache 0 0 384 42 4 : tunables 0 0 0 : slabdata 0 0 0
ip_dst_cache 51 75 320 25 2 : tunables 0 0 0 : slabdata 3 3 0
TCP 19 19 1664 19 8 : tunables 0 0 0 : slabdata 1 1 0
blkdev_integrity 0 0 120 34 1 : tunables 0 0 0 : slabdata 0 0 0
blkdev_queue 34 34 1824 17 8 : tunables 0 0 0 : slabdata 2 2 0
blkdev_requests 38 52 304 26 2 : tunables 0 0 0 : slabdata 2 2 0
sock_inode_cache 138 138 704 46 8 : tunables 0 0 0 : slabdata 3 3 0
file_lock_cache 42 42 192 42 2 : tunables 0 0 0 : slabdata 1 1 0
taskstats 26 26 312 26 2 : tunables 0 0 0 : slabdata 1 1 0
proc_inode_cache 90 162 600 27 4 : tunables 0 0 0 : slabdata 6 6 0
sigqueue 25 25 160 25 1 : tunables 0 0 0 : slabdata 1 1 0
radix_tree_node 623 2581 560 29 4 : tunables 0 0 0 : slabdata 89 89 0
bdev_cache 42 42 768 42 8 : tunables 0 0 0 : slabdata 1 1 0
sysfs_dir_cache 7084 7089 80 51 1 : tunables 0 0 0 : slabdata 139 139 0
inode_cache 1505 1708 568 28 4 : tunables 0 0 0 : slabdata 61 61 0
dentry 2555 4485 208 39 2 : tunables 0 0 0 : slabdata 115 115 0
avc_node 1735 2128 72 56 1 : tunables 0 0 0 : slabdata 38 38 0
buffer_head 1583 5472 112 36 1 : tunables 0 0 0 : slabdata 152 152 0
mm_struct 75 78 832 39 8 : tunables 0 0 0 : slabdata 2 2 0
vm_area_struct 2223 2438 176 46 2 : tunables 0 0 0 : slabdata 53 53 0
files_cache 78 84 768 42 8 : tunables 0 0 0 : slabdata 2 2 0
signal_cache 105 108 896 36 8 : tunables 0 0 0 : slabdata 3 3 0
sighand_cache 85 90 2112 15 8 : tunables 0 0 0 : slabdata 6 6 0
task_struct 141 145 5840 5 8 : tunables 0 0 0 : slabdata 29 29 0
anon_vma 741 768 32 128 1 : tunables 0 0 0 : slabdata 6 6 0
shared_policy_node 85 85 48 85 1 : tunables 0 0 0 : slabdata 1 1 0
numa_policy 56 60 136 30 1 : tunables 0 0 0 : slabdata 2 2 0
idr_layer_cache 269 270 536 30 4 : tunables 0 0 0 : slabdata 9 9 0
kmalloc-4096 247 248 4096 8 8 : tunables 0 0 0 : slabdata 31 31 0
kmalloc-2048 345 352 2048 16 8 : tunables 0 0 0 : slabdata 22 22 0
kmalloc-1024 396 416 1024 32 8 : tunables 0 0 0 : slabdata 13 13 0
kmalloc-512 297 320 512 32 4 : tunables 0 0 0 : slabdata 10 10 0
kmalloc-256 985 992 256 32 2 : tunables 0 0 0 : slabdata 31 31 0
kmalloc-128 1899 2016 128 32 1 : tunables 0 0 0 : slabdata 63 63 0
kmalloc-64 6795 9600 64 64 1 : tunables 0 0 0 : slabdata 150 150 0
kmalloc-32 20735 20736 32 128 1 : tunables 0 0 0 : slabdata 162 162 0
kmalloc-16 138778 139264 16 256 1 : tunables 0 0 0 : slabdata 544 544 0
kmalloc-8 8190 8192 8 512 1 : tunables 0 0 0 : slabdata 16 16 0
kmalloc-192 972 1050 192 42 2 : tunables 0 0 0 : slabdata 25 25 0
kmalloc-96 2815 2856 96 42 1 : tunables 0 0 0 : slabdata 68 68 0
kmem_cache_node 0 0 64 64 1 : tunables 0 0 0 : slabdata 0 0 0
--
-- Pierre Ossman
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next prev parent reply other threads:[~2009-03-09 7:40 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-12832-27@http.bugzilla.kernel.org/>
2009-03-07 20:24 ` Andrew Morton
2009-03-07 21:00 ` Pierre Ossman
2009-03-07 22:13 ` Andrew Morton
2009-03-07 22:53 ` Pierre Ossman
2009-03-08 10:00 ` Pierre Ossman
2009-03-08 10:36 ` Pierre Ossman
2009-03-08 12:38 ` Wu Fengguang
2009-03-08 14:26 ` Pierre Ossman
2009-03-08 15:54 ` Pierre Ossman
2009-03-08 19:11 ` Andrew Morton
2009-03-08 19:23 ` Pierre Ossman
2009-03-07 22:16 ` Andrew Morton
2009-03-09 1:37 ` Wu Fengguang
[not found] ` <20090309020701.GA381@localhost>
2009-03-09 7:40 ` Pierre Ossman [this message]
2009-03-09 14:22 ` Wu Fengguang
2009-03-09 15:02 ` Pierre Ossman
2009-03-10 2:41 ` Wu Fengguang
2009-03-10 6:56 ` Pierre Ossman
2009-03-10 8:19 ` Wu Fengguang
2009-03-10 9:55 ` Pierre Ossman
2009-03-10 12:22 ` Wu Fengguang
2009-03-10 13:11 ` Wu Fengguang
2009-03-10 15:52 ` Pierre Ossman
2009-03-10 20:21 ` Pierre Ossman
2009-03-11 1:37 ` Wu Fengguang
[not found] ` <20090311075703.35de2488@mjolnir.ossman.eu>
2009-03-11 7:14 ` Wu Fengguang
2009-03-11 7:26 ` Pierre Ossman
2009-03-11 7:36 ` Wu Fengguang
2009-03-11 7:57 ` Pierre Ossman
2009-03-11 8:20 ` Wu Fengguang
2009-03-11 13:05 ` Pierre Ossman
2009-03-11 13:00 ` Wu Fengguang
2009-03-11 15:02 ` Pierre Ossman
2009-03-11 15:47 ` Steven Rostedt
2009-03-11 16:46 ` Pierre Ossman
2009-03-11 21:43 ` Pierre Ossman
2009-03-12 6:50 ` Pierre Ossman
2009-03-12 1:08 ` Wu Fengguang
2009-03-12 6:55 ` Pierre Ossman
2009-03-12 7:29 ` Wu Fengguang
2009-03-11 14:25 ` Steven Rostedt
2009-03-11 14:35 ` Pierre Ossman
2009-03-11 16:55 ` Pierre Ossman
2009-03-11 17:28 ` Steven Rostedt
2009-03-11 18:33 ` Pierre Ossman
2009-03-11 18:48 ` Steven Rostedt
2009-03-11 18:56 ` Pierre Ossman
2009-03-11 19:03 ` Steven Rostedt
2009-03-12 2:46 ` KOSAKI Motohiro
2009-03-12 6:53 ` Pierre Ossman
2009-03-10 19:58 ` Pierre Ossman
2009-03-11 0:19 ` KOSAKI Motohiro
2009-03-11 7:22 ` Pierre Ossman
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