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Subject2.6.33.2 kmalloc-8 slab leaks ~512 objects per second
Date

Hi all,

As the subject says, is this a know issue? I have been tracking the growth at
one second intervals and it looks like this:

512 (67716608) Slab: 606744 kB
512 (67717120) Slab: 606752 kB
512 (67717632) Slab: 606756 kB
0 (67718144) Slab: 606756 kB
512 (67718144) Slab: 606760 kB
1024 (67718656) Slab: 606768 kB
512 (67719680) Slab: 606772 kB
512 (67720192) Slab: 606776 kB
0 (67720704) Slab: 606776 kB
512 (67720704) Slab: 606780 kB

First fiels is the diff in numobj, in parentheses is actual numobj and last is
the total slab size from /proc/meminfo.

kmalloc-8 68044800 68044800 8 512 1 : tunables 0 0 0
: slabdata 132900 132900 0

dm-io slab also seems large, don't know... :
dm_io 75924 147288 40 102 1 : tunables 0 0 0 :
slabdata 1444 1444 0

Some other info about the system/kernel is attached.

Tvrtko



Sophos Plc, The Pentagon, Abingdon Science Park, Abingdon, OX14 3YP, United Kingdom.
Company Reg No 2096520. VAT Reg No GB 348 3873 20.
Module Size Used by
bridge 49385 0
stp 1903 1 bridge
llc 4749 2 bridge,stp
tun 12712 4
nls_utf8 1325 1
cifs 249220 2
power_meter 8721 0
dell_rbu 5994 0
nfsd 103640 7
exportfs 3808 1 nfsd
snd_pcm_oss 35939 0
snd_mixer_oss 14873 1 snd_pcm_oss
snd_seq 51077 0
snd_seq_device 5913 1 snd_seq
edd 8495 0
nfs 162373 3
lockd 70096 2 nfsd,nfs
nfs_acl 2517 2 nfsd,nfs
sunrpc 206266 27 nfsd,nfs,lockd,nfs_acl
radeon 704591 2
ttm 52379 1 radeon
drm_kms_helper 27568 1 radeon
drm 178090 5 radeon,ttm,drm_kms_helper
i2c_algo_bit 5267 1 radeon
af_packet 18575 0
cpufreq_conservative 10990 0
cpufreq_userspace 2240 0
cpufreq_powersave 1002 0
acpi_cpufreq 6447 0
fuse 61697 1
loop 15435 0
snd_hda_codec_realtek 281691 1
snd_hda_intel 23948 2
snd_hda_codec 70603 2 snd_hda_codec_realtek,snd_hda_intel
dcdbas 6609 0
snd_hwdep 6250 1 snd_hda_codec
snd_pcm 71241 3 snd_pcm_oss,snd_hda_intel,snd_hda_codec
iTCO_wdt 9926 0
snd_timer 19944 2 snd_seq,snd_pcm
kvm_intel 42483 3
tg3 120566 0
iTCO_vendor_support 2563 1 iTCO_wdt
broadcom 6767 0
snd 60878 14 snd_pcm_oss,snd_mixer_oss,snd_seq,snd_seq_device,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
kvm 179805 1 kvm_intel
button 5413 0
snd_page_alloc 7637 2 snd_hda_intel,snd_pcm
sr_mod 12762 0
libphy 20434 2 tg3,broadcom
intel_agp 27929 0
pcspkr 1870 0
sg 25183 0
cdrom 36645 1 sr_mod
ext4 244065 9
jbd2 58645 1 ext4
crc16 1471 1 ext4
linear 4294 0
raid456 50446 0
async_raid6_recov 5589 1 raid456
async_pq 3529 2 raid456,async_raid6_recov
raid6_pq 79292 2 async_raid6_recov,async_pq
async_xor 2658 3 raid456,async_raid6_recov,async_pq
xor 4672 1 async_xor
async_memcpy 1490 2 raid456,async_raid6_recov
async_tx 2137 5 raid456,async_raid6_recov,async_pq,async_xor,async_memcpy
raid1 21608 0
raid0 6118 1
dm_snapshot 28785 0
dm_mod 64837 25 dm_snapshot
fan 3519 0
processor 31361 1 acpi_cpufreq
thermal 13003 0
thermal_sys 15131 3 fan,processor,thermal
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