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* Re: [GIT PULL] Support for Cadence GEM in the MACB driver
From: Jean-Christophe PLAGNIOL-VILLARD @ 2011-11-22 10:00 UTC (permalink / raw)
  To: Jamie Iles; +Cc: netdev, Nicolas Ferre, linux-arm-kernel, Arnd Bergmann, davem
In-Reply-To: <20111121100020.GB7314@totoro>

On 10:00 Mon 21 Nov     , Jamie Iles wrote:
> Hi Arnd,
> 
> Please consider pulling the patches to add support for Cadence GEM to 
> the MACB driver.  These have been ready to go for a little while but got 
> held up with the rename of Ethernet drivers in the last merge window.  
> It would be great if we can get some exposure in -next for a little 
> while before the next merge window.
> 
> Thanks,
> 
> Jamie
> 
> The following changes since commit cfcfc9eca2bcbd26a8e206baeb005b055dbf8e37:
> 
>   Linux 3.2-rc2 (2011-11-15 15:02:59 -0200)
> 
> are available in the git repository at:
>   git://github.com/jamieiles/linux-2.6-ji.git macb-gem
Arnd please wait

please update his patch

"at91: provide macb clks with "pclk" and "hclk" name"

with the version I send to the ML

Best Regards,
J.
> 
> Jamie Iles (9):
>       at91: provide macb clks with "pclk" and "hclk" name
>       macb: remove conditional clk handling
>       macb: unify at91 and avr32 platform data
>       macb: convert printk to netdev_ and friends
>       macb: initial support for Cadence GEM
>       macb: support higher rate GEM MDIO clock divisors
>       macb: support statistics for GEM devices
>       macb: support DMA bus widths > 32 bits
>       macb: allow GEM to have configurable receive buffer size
> 
>  arch/arm/mach-at91/at91cap9.c               |    8 +-
>  arch/arm/mach-at91/at91cap9_devices.c       |    6 +-
>  arch/arm/mach-at91/at91rm9200_devices.c     |    6 +-
>  arch/arm/mach-at91/at91sam9260.c            |    8 +-
>  arch/arm/mach-at91/at91sam9260_devices.c    |    6 +-
>  arch/arm/mach-at91/at91sam9263.c            |    8 +-
>  arch/arm/mach-at91/at91sam9263_devices.c    |    6 +-
>  arch/arm/mach-at91/at91sam9g45.c            |    8 +-
>  arch/arm/mach-at91/at91sam9g45_devices.c    |    6 +-
>  arch/arm/mach-at91/board-1arm.c             |    2 +-
>  arch/arm/mach-at91/board-afeb-9260v1.c      |    2 +-
>  arch/arm/mach-at91/board-cam60.c            |    2 +-
>  arch/arm/mach-at91/board-cap9adk.c          |    2 +-
>  arch/arm/mach-at91/board-carmeva.c          |    2 +-
>  arch/arm/mach-at91/board-cpu9krea.c         |    2 +-
>  arch/arm/mach-at91/board-cpuat91.c          |    2 +-
>  arch/arm/mach-at91/board-csb337.c           |    2 +-
>  arch/arm/mach-at91/board-csb637.c           |    2 +-
>  arch/arm/mach-at91/board-eb9200.c           |    2 +-
>  arch/arm/mach-at91/board-ecbat91.c          |    2 +-
>  arch/arm/mach-at91/board-eco920.c           |    2 +-
>  arch/arm/mach-at91/board-foxg20.c           |    2 +-
>  arch/arm/mach-at91/board-gsia18s.c          |    2 +-
>  arch/arm/mach-at91/board-kafa.c             |    2 +-
>  arch/arm/mach-at91/board-kb9202.c           |    2 +-
>  arch/arm/mach-at91/board-neocore926.c       |    2 +-
>  arch/arm/mach-at91/board-pcontrol-g20.c     |    2 +-
>  arch/arm/mach-at91/board-picotux200.c       |    2 +-
>  arch/arm/mach-at91/board-qil-a9260.c        |    2 +-
>  arch/arm/mach-at91/board-rm9200dk.c         |    2 +-
>  arch/arm/mach-at91/board-rm9200ek.c         |    2 +-
>  arch/arm/mach-at91/board-rsi-ews.c          |    2 +-
>  arch/arm/mach-at91/board-sam9-l9260.c       |    2 +-
>  arch/arm/mach-at91/board-sam9260ek.c        |    2 +-
>  arch/arm/mach-at91/board-sam9263ek.c        |    2 +-
>  arch/arm/mach-at91/board-sam9g20ek.c        |    2 +-
>  arch/arm/mach-at91/board-sam9m10g45ek.c     |    2 +-
>  arch/arm/mach-at91/board-snapper9260.c      |    2 +-
>  arch/arm/mach-at91/board-stamp9g20.c        |    2 +-
>  arch/arm/mach-at91/board-usb-a926x.c        |    2 +-
>  arch/arm/mach-at91/board-yl-9200.c          |    2 +-
>  arch/arm/mach-at91/include/mach/board.h     |   14 +-
>  arch/avr32/boards/atngw100/setup.c          |    2 +-
>  arch/avr32/boards/atstk1000/atstk1002.c     |    2 +-
>  arch/avr32/boards/favr-32/setup.c           |    2 +-
>  arch/avr32/boards/hammerhead/setup.c        |    2 +-
>  arch/avr32/boards/merisc/setup.c            |    2 +-
>  arch/avr32/boards/mimc200/setup.c           |    2 +-
>  arch/avr32/mach-at32ap/at32ap700x.c         |    8 +-
>  arch/avr32/mach-at32ap/include/mach/board.h |    7 +-
>  drivers/net/ethernet/Makefile               |    2 +-
>  drivers/net/ethernet/cadence/Kconfig        |   16 +-
>  drivers/net/ethernet/cadence/at91_ether.c   |    3 +-
>  drivers/net/ethernet/cadence/at91_ether.h   |    4 +-
>  drivers/net/ethernet/cadence/macb.c         |  344 +++++++++++++++++----------
>  drivers/net/ethernet/cadence/macb.h         |  150 ++++++++++++-
>  include/linux/platform_data/macb.h          |   17 ++
>  57 files changed, 492 insertions(+), 211 deletions(-)
>  create mode 100644 include/linux/platform_data/macb.h

^ permalink raw reply

* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Eric Dumazet @ 2011-11-22  9:46 UTC (permalink / raw)
  To: Markus Trippelsdorf
  Cc: Christoph Lameter, Christian Kujau, Benjamin Herrenschmidt,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <1321954729.2474.4.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>

Le mardi 22 novembre 2011 à 10:38 +0100, Eric Dumazet a écrit :

> Wait a minute
> 
> You trigger this using slabinfo looping or something ?
> 
> Bug is in slabinfo then, dont use it, and see if bug triggers.
> 
> Given slub is now lockless, validate_slab_slab() is probably very wrong
> these days.
> 

I trigger a bug in less than 10 secondes, with this running while a
"make -j16 " kernel build is run.

while :; do slabinfo -v; done


[42593.070289] =============================================================================
[42593.070445] BUG kmalloc-192: Wrong object count. Counter is 12 but counted were 13
[42593.070599] -----------------------------------------------------------------------------
[42593.070600] 
[42593.070822] INFO: Slab 0xffffea00046f4400 objects=42 used=12 fp=0xffff88011bd10f00 flags=0x60000000004081
[42593.070977] Pid: 5632, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42593.070979] Call Trace:
[42593.070987]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42593.070990]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42593.070993]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42593.071000]  [<ffffffff816c923e>] ? _raw_spin_unlock_irqrestore+0xe/0x20
[42593.071003]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42593.071005]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42593.071010]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42593.071013]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42593.071015]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42593.071019]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42593.071021] FIX kmalloc-192: Object count adjusted.
[42605.106241] =============================================================================
[42605.106405] BUG kmalloc-32: Wrong object count. Counter is 53 but counted were 59
[42605.106558] -----------------------------------------------------------------------------
[42605.106560] 
[42605.106787] INFO: Slab 0xffffea00046f8c00 objects=128 used=49 fp=0xffff88011be30660 flags=0x60000000000081
[42605.106950] Pid: 8545, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42605.106952] Call Trace:
[42605.106962]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42605.106967]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42605.106970]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42605.106974]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42605.106977]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42605.106983]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42605.106988]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42605.106991]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42605.106998]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42605.107001] FIX kmalloc-32: Object count adjusted.
[42605.109228] =============================================================================
[42605.109389] BUG kmalloc-192: Wrong object count. Counter is 19 but counted were 25
[42605.109541] -----------------------------------------------------------------------------
[42605.109543] 
[42605.109785] INFO: Slab 0xffffea0001ef2600 objects=42 used=13 fp=0xffff88007bc98300 flags=0x10000000004081
[42605.109944] Pid: 8545, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42605.109946] Call Trace:
[42605.109956]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42605.109961]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42605.109965]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42605.109969]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42605.109972]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42605.109977]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42605.109982]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42605.109985]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42605.109991]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42605.109994] FIX kmalloc-192: Object count adjusted.
[42605.165152] =============================================================================
[42605.165316] BUG kmalloc-32: Wrong object count. Counter is 51 but counted were 41
[42605.165472] -----------------------------------------------------------------------------
[42605.165474] 
[42605.165704] INFO: Slab 0xffffea00046f8c00 objects=128 used=51 fp=0xffff88011be304c0 flags=0x60000000000081
[42605.165866] Pid: 8588, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42605.165869] Call Trace:
[42605.165879]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42605.165884]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42605.165888]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42605.165892]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42605.165895]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42605.165901]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42605.165906]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42605.165909]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42605.165916]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42605.165919] FIX kmalloc-32: Object count adjusted.
[42605.694221] =============================================================================
[42605.694381] BUG shared_policy_node: Wrong object count. Counter is 55 but counted were 56
[42605.694537] -----------------------------------------------------------------------------
[42605.694540] 
[42605.694781] INFO: Slab 0xffffea00046f0200 objects=85 used=55 fp=0xffff88011bc08510 flags=0x60000000000081
[42605.694942] Pid: 8812, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42605.694944] Call Trace:
[42605.694952]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42605.694957]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42605.694960]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42605.694967]  [<ffffffff816c923e>] ? _raw_spin_unlock_irqrestore+0xe/0x20
[42605.694971]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42605.694975]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42605.694980]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42605.694985]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42605.694988]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42605.694993]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42605.694996] FIX shared_policy_node: Object count adjusted.
[42605.767360] =============================================================================
[42605.767521] BUG shared_policy_node: Wrong object count. Counter is 56 but counted were 55
[42605.767676] -----------------------------------------------------------------------------
[42605.767677] 
[42605.767903] INFO: Slab 0xffffea00046f0200 objects=85 used=56 fp=0xffff88011bc08510 flags=0x60000000000081
[42605.768063] Pid: 8833, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42605.768065] Call Trace:
[42605.768075]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42605.768079]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42605.768083]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42605.768086]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42605.768090]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42605.768094]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42605.768099]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42605.768101]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42605.768106]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42605.768109] FIX shared_policy_node: Object count adjusted.
[42606.357049] =============================================================================
[42606.357208] BUG vm_area_struct: Wrong object count. Counter is 20 but counted were 26
[42606.357365] -----------------------------------------------------------------------------
[42606.357367] 
[42606.357600] INFO: Slab 0xffffea00046f6d00 objects=46 used=20 fp=0xffff88011bdb53f0 flags=0x60000000004081
[42606.357762] Pid: 9146, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42606.357764] Call Trace:
[42606.357772]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42606.357776]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42606.357780]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42606.357783]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42606.357787]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42606.357791]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42606.357796]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42606.357799]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42606.357805]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42606.357808] FIX vm_area_struct: Object count adjusted.
[42607.719968] =============================================================================
[42607.720123] BUG kmalloc-128: Wrong object count. Counter is 15 but counted were 16
[42607.720271] -----------------------------------------------------------------------------
[42607.720272] 
[42607.720495] INFO: Slab 0xffffea00046f5980 objects=32 used=15 fp=0xffff88011bd66400 flags=0x60000000000081
[42607.720649] Pid: 9403, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42607.720651] Call Trace:
[42607.720657]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42607.720660]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42607.720663]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42607.720665]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42607.720667]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42607.720671]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42607.720674]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42607.720676]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42607.720680]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42607.720682] FIX kmalloc-128: Object count adjusted.
[42607.788584] =============================================================================
[42607.788749] BUG kmalloc-128: Wrong object count. Counter is 15 but counted were 14
[42607.788915] -----------------------------------------------------------------------------
[42607.788917] 
[42607.789148] INFO: Slab 0xffffea00046f5980 objects=32 used=15 fp=0xffff88011bd66d00 flags=0x60000000000081
[42607.789312] Pid: 9425, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42607.789314] Call Trace:
[42607.789325]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42607.789330]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42607.789334]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42607.789338]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42607.789341]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42607.789347]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42607.789352]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42607.789355]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42607.789362]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42607.789365] FIX kmalloc-128: Object count adjusted.
[42607.995101] =============================================================================
[42607.995267] BUG shared_policy_node: Wrong object count. Counter is 69 but counted were 70
[42607.995426] -----------------------------------------------------------------------------
[42607.995428] 
[42607.995659] INFO: Slab 0xffffea0001e97880 objects=85 used=69 fp=0xffff88007a5e2270 flags=0x10000000000081
[42607.995819] Pid: 9429, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42607.995822] Call Trace:
[42607.995833]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42607.995838]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42607.995842]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42607.995847]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42607.995850]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42607.995856]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42607.995861]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42607.995864]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42607.995871]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42607.995874] FIX shared_policy_node: Object count adjusted.
[42610.796510] =============================================================================
[42610.796675] BUG kmalloc-32: Wrong object count. Counter is 72 but counted were 78
[42610.796833] -----------------------------------------------------------------------------
[42610.796835] 
[42610.797068] INFO: Slab 0xffffea0001f59880 objects=128 used=71 fp=0xffff88007d6625c0 flags=0x10000000000081
[42610.797231] Pid: 10020, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42610.797234] Call Trace:
[42610.797244]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42610.797249]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42610.797253]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42610.797256]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42610.797260]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42610.797265]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42610.797271]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42610.797274]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42610.797280]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42610.797283] FIX kmalloc-32: Object count adjusted.
[42610.867763] =============================================================================
[42610.867928] BUG kmalloc-32: Wrong object count. Counter is 52 but counted were 45
[42610.868084] -----------------------------------------------------------------------------
[42610.868086] 
[42610.868325] INFO: Slab 0xffffea0001f59880 objects=128 used=52 fp=0xffff88007d662580 flags=0x10000000000081
[42610.868489] Pid: 10037, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42610.868491] Call Trace:
[42610.868501]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42610.868505]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42610.868509]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42610.868513]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42610.868516]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42610.868522]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42610.868527]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42610.868530]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42610.868537]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42610.868540] FIX kmalloc-32: Object count adjusted.
[42613.580115] =============================================================================
[42613.580285] BUG kmalloc-192: Wrong object count. Counter is 7 but counted were 16
[42613.580436] -----------------------------------------------------------------------------
[42613.580438] 
[42613.580667] INFO: Slab 0xffffea0001ef0c80 objects=42 used=7 fp=0xffff88007bc32600 flags=0x10000000004081
[42613.580825] Pid: 10700, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42613.580827] Call Trace:
[42613.580837]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42613.580842]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42613.580845]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42613.580849]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42613.580852]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42613.580857]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42613.580862]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42613.580865]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42613.580870]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42613.580873] FIX kmalloc-192: Object count adjusted.
[42614.157835] =============================================================================
[42614.157992] BUG kmalloc-192: Wrong object count. Counter is 1 but counted were 4
[42614.159747] -----------------------------------------------------------------------------
[42614.159749] 
[42614.159978] INFO: Slab 0xffffea0001e98980 objects=42 used=1 fp=0xffff88007a626900 flags=0x10000000004081
[42614.160135] Pid: 10879, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42614.160138] Call Trace:
[42614.160146]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42614.160149]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42614.160153]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42614.160156]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42614.160159]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42614.160164]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42614.160168]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42614.160171]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42614.160176]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42614.160179] FIX kmalloc-192: Object count adjusted.
[42614.870334] =============================================================================
[42614.870497] BUG kmalloc-64: Wrong object count. Counter is 55 but counted were 56
[42614.870651] -----------------------------------------------------------------------------
[42614.870653] 
[42614.870884] INFO: Slab 0xffffea0001ec7400 objects=64 used=54 fp=0xffff88007b1d0800 flags=0x10000000000081
[42614.871046] Pid: 11064, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42614.871048] Call Trace:
[42614.871058]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42614.871063]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42614.871067]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42614.871071]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42614.871075]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42614.871081]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42614.871086]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42614.871090]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42614.871096]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42614.871099] FIX kmalloc-64: Object count adjusted.
[42615.644506] =============================================================================
[42615.644668] BUG shared_policy_node: Wrong object count. Counter is 52 but counted were 55
[42615.644824] -----------------------------------------------------------------------------
[42615.644826] 
[42615.645055] INFO: Slab 0xffffea0001f02340 objects=85 used=51 fp=0xffff88007c08da20 flags=0x10000000000081
[42615.645229] Pid: 11349, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42615.645231] Call Trace:
[42615.645239]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42615.645243]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42615.645247]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42615.645251]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42615.645255]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42615.645259]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42615.645264]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42615.645267]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42615.645272]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42615.645275] FIX shared_policy_node: Object count adjusted.
[42615.714092] =============================================================================
[42615.714255] BUG shared_policy_node: Wrong object count. Counter is 33 but counted were 29
[42615.714413] -----------------------------------------------------------------------------
[42615.714415] 
[42615.714646] INFO: Slab 0xffffea0001f02340 objects=85 used=33 fp=0xffff88007c08d0c0 flags=0x10000000000081
[42615.714808] Pid: 11376, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42615.714810] Call Trace:
[42615.714820]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42615.714825]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42615.714829]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42615.714833]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42615.714836]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42615.714841]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42615.714845]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42615.714848]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42615.714853]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42615.714856] FIX shared_policy_node: Object count adjusted.
[42616.120500] =============================================================================
[42616.120660] BUG anon_vma: Wrong object count. Counter is 37 but counted were 38
[42616.120812] -----------------------------------------------------------------------------
[42616.120814] 
[42616.121040] INFO: Slab 0xffffea0001f56440 objects=56 used=29 fp=0xffff88007d591dc8 flags=0x10000000000081
[42616.121200] Pid: 11487, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42616.121202] Call Trace:
[42616.121210]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42616.121214]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42616.121218]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42616.121222]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42616.121225]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42616.121230]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42616.121234]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42616.121237]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42616.121243]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42616.121246] FIX anon_vma: Object count adjusted.
[42616.187602] =============================================================================
[42616.187763] BUG anon_vma: Wrong object count. Counter is 38 but counted were 29
[42616.187920] -----------------------------------------------------------------------------
[42616.187922] 
[42616.188154] INFO: Slab 0xffffea0001f56440 objects=56 used=38 fp=0xffff88007d591dc8 flags=0x10000000000081
[42616.188318] Pid: 11554, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42616.188320] Call Trace:
[42616.188328]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42616.188332]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42616.188335]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42616.188339]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42616.188343]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42616.188347]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42616.188352]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42616.188355]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42616.188361]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42616.188364] FIX anon_vma: Object count adjusted.
[42616.615663] =============================================================================
[42616.615829] BUG files_cache: Wrong object count. Counter is 4 but counted were 5
[42616.615983] -----------------------------------------------------------------------------
[42616.615985] 
[42616.616214] INFO: Slab 0xffffea0001e27000 objects=46 used=4 fp=0xffff8800789c0b00 flags=0x10000000004081
[42616.616377] Pid: 11643, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42616.616380] Call Trace:
[42616.616391]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42616.616396]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42616.616400]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42616.616404]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42616.616407]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42616.616413]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42616.616419]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42616.616423]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42616.616430]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42616.616433] FIX files_cache: Object count adjusted.
[42618.356527] =============================================================================
[42618.356689] BUG mm_struct: Wrong object count. Counter is 3 but counted were 4
[42618.356848] -----------------------------------------------------------------------------
[42618.356850] 
[42618.357083] INFO: Slab 0xffffea00046f3800 objects=23 used=3 fp=0xffff88011bce1b80 flags=0x60000000004081
[42618.357244] Pid: 12232, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42618.357247] Call Trace:
[42618.357255]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42618.357259]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42618.357263]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42618.357267]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42618.357271]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42618.357276]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42618.357281]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42618.357284]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42618.357290]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42618.357293] FIX mm_struct: Object count adjusted.
[42618.427688] =============================================================================
[42618.427849] BUG mm_struct: Wrong object count. Counter is 4 but counted were 3
[42618.428018] -----------------------------------------------------------------------------
[42618.428019] 
[42618.428250] INFO: Slab 0xffffea00046f3800 objects=23 used=4 fp=0xffff88011bce1b80 flags=0x60000000004081
[42618.428414] Pid: 12255, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42618.428416] Call Trace:
[42618.428424]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42618.428429]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42618.428433]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42618.428437]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42618.428441]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42618.428446]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42618.428451]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42618.428454]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42618.428458]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42618.428461] FIX mm_struct: Object count adjusted.
[42619.289348] =============================================================================
[42619.289514] BUG files_cache: Wrong object count. Counter is 4 but counted were 5
[42619.289670] -----------------------------------------------------------------------------
[42619.289671] 
[42619.289903] INFO: Slab 0xffffea000472e000 objects=46 used=3 fp=0xffff88011cb87bc0 flags=0x60000000004081
[42619.290066] Pid: 12491, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42619.290069] Call Trace:
[42619.290076]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42619.290081]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42619.290084]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42619.290088]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42619.290092]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42619.290096]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42619.290101]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42619.290104]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42619.290109]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42619.290112] FIX files_cache: Object count adjusted.
[42619.358478] =============================================================================
[42619.358655] BUG files_cache: Wrong object count. Counter is 5 but counted were 3
[42619.358810] -----------------------------------------------------------------------------
[42619.358812] 
[42619.359043] INFO: Slab 0xffffea000472e000 objects=46 used=5 fp=0xffff88011cb87bc0 flags=0x60000000004081
[42619.359205] Pid: 12517, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42619.359208] Call Trace:
[42619.359215]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42619.359219]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42619.359223]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42619.359227]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42619.359230]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42619.359235]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42619.359240]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42619.359243]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42619.359248]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42619.359251] FIX files_cache: Object count adjusted.
[42620.247231] =============================================================================
[42620.247390] BUG vm_area_struct: Wrong object count. Counter is 33 but counted were 34
[42620.247542] -----------------------------------------------------------------------------
[42620.247544] 
[42620.247771] INFO: Slab 0xffffea0001f27d80 objects=46 used=30 fp=0xffff88007c9f6bb0 flags=0x10000000004081
[42620.247928] Pid: 12799, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42620.247930] Call Trace:
[42620.247937]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42620.247941]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42620.247944]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42620.247947]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42620.247950]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42620.247955]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42620.247958]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42620.247961]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42620.247966]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42620.247968] FIX vm_area_struct: Object count adjusted.
[42620.316231] =============================================================================
[42620.316394] BUG vm_area_struct: Wrong object count. Counter is 34 but counted were 30
[42620.316550] -----------------------------------------------------------------------------
[42620.316552] 
[42620.316786] INFO: Slab 0xffffea0001f27d80 objects=46 used=34 fp=0xffff88007c9f6bb0 flags=0x10000000004081
[42620.316949] Pid: 12836, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42620.316952] Call Trace:
[42620.316962]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42620.316966]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42620.316970]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42620.316973]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42620.316977]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42620.316982]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42620.316987]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42620.316990]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42620.316997]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42620.316999] FIX vm_area_struct: Object count adjusted.
[42620.873381] =============================================================================
[42620.873545] BUG Acpi-Namespace: Wrong object count. Counter is 1 but counted were 2
[42620.873701] -----------------------------------------------------------------------------
[42620.873703] 
[42620.873936] INFO: Slab 0xffffea00046f08c0 objects=102 used=1 fp=0xffff88011bc23fc8 flags=0x60000000000081
[42620.874100] Pid: 12988, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42620.874103] Call Trace:
[42620.874110]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42620.874117]  [<ffffffff8128bd99>] ? free_cpumask_var+0x9/0x10
[42620.874121]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42620.874124]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42620.874127]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42620.874131]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42620.874135]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42620.874140]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42620.874143]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42620.874148]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42620.874151] FIX Acpi-Namespace: Object count adjusted.
[42620.924386] =============================================================================
[42620.924541] BUG Acpi-Namespace: Wrong object count. Counter is 2 but counted were 1
[42620.924692] -----------------------------------------------------------------------------
[42620.924693] 
[42620.924915] INFO: Slab 0xffffea00046f08c0 objects=102 used=2 fp=0xffff88011bc23fc8 flags=0x60000000000081
[42620.925069] Pid: 13027, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42620.925071] Call Trace:
[42620.925078]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42620.925083]  [<ffffffff8128bd99>] ? free_cpumask_var+0x9/0x10
[42620.925085]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42620.925088]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42620.925090]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42620.925093]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42620.925096]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42620.925100]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42620.925102]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42620.925106]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42620.925108] FIX Acpi-Namespace: Object count adjusted.
[42622.286888] =============================================================================
[42622.287046] BUG kmalloc-32: Wrong object count. Counter is 35 but counted were 36
[42622.287208] -----------------------------------------------------------------------------
[42622.287209] 
[42622.287429] INFO: Slab 0xffffea0001f54500 objects=128 used=22 fp=0xffff88007d514ae0 flags=0x10000000000081
[42622.287584] Pid: 13338, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42622.287585] Call Trace:
[42622.287592]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42622.287595]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42622.287597]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42622.287600]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42622.287602]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42622.287606]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42622.287609]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42622.287611]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42622.287615]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42622.287617] FIX kmalloc-32: Object count adjusted.
[42622.345596] =============================================================================
[42622.345757] BUG kmalloc-32: Wrong object count. Counter is 32 but counted were 18
[42622.345912] -----------------------------------------------------------------------------
[42622.345914] 
[42622.346144] INFO: Slab 0xffffea0001f54500 objects=128 used=31 fp=0xffff88007d514a80 flags=0x10000000000081
[42622.346309] Pid: 13352, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42622.346311] Call Trace:
[42622.346319]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42622.346323]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42622.346327]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42622.346330]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42622.346334]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42622.346339]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42622.346343]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42622.346346]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42622.346352]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42622.346355] FIX kmalloc-32: Object count adjusted.
[42622.414077] =============================================================================
[42622.414240] BUG kmalloc-32: Wrong object count. Counter is 17 but counted were 16
[42622.414397] -----------------------------------------------------------------------------
[42622.414399] 
[42622.414636] INFO: Slab 0xffffea0001f54500 objects=128 used=17 fp=0xffff88007d514200 flags=0x10000000000081
[42622.414798] Pid: 13379, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42622.414801] Call Trace:
[42622.414810]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42622.414814]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42622.414818]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42622.414822]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42622.414826]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42622.414831]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42622.414835]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42622.414839]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42622.414844]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42622.414847] FIX kmalloc-32: Object count adjusted.
[42628.657791] =============================================================================
[42628.657953] BUG kmalloc-192: Wrong object count. Counter is 6 but counted were 8
[42628.659705] -----------------------------------------------------------------------------
[42628.659708] 
[42628.659939] INFO: Slab 0xffffea0004251d00 objects=42 used=4 fp=0xffff8801094755c0 flags=0x60000000004081
[42628.660103] Pid: 14941, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42628.660105] Call Trace:
[42628.660113]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42628.660118]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42628.660121]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42628.660125]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42628.660129]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42628.660134]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42628.660139]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42628.660142]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42628.660148]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42628.660151] FIX kmalloc-192: Object count adjusted.
[42628.878121] =============================================================================
[42628.878293] BUG kmalloc-256: Wrong object count. Counter is 23 but counted were 24
[42628.878450] -----------------------------------------------------------------------------
[42628.878452] 
[42628.878684] INFO: Slab 0xffffea0001f3e900 objects=32 used=23 fp=0xffff88007cfa4600 flags=0x10000000004081
[42628.878848] Pid: 14996, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42628.878850] Call Trace:
[42628.878860]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42628.878865]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42628.878869]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42628.878872]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42628.878875]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42628.878881]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42628.878887]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42628.878890]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42628.878896]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42628.878899] FIX kmalloc-256: Object count adjusted.
[42635.424636] =============================================================================
[42635.424797] BUG selinux_inode_security: Wrong object count. Counter is 44 but counted were 45
[42635.424955] -----------------------------------------------------------------------------
[42635.424957] 
[42635.425202] INFO: Slab 0xffffea0001ef31c0 objects=56 used=44 fp=0xffff88007bcc7438 flags=0x10000000000081
[42635.425373] Pid: 16327, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42635.425375] Call Trace:
[42635.425385]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42635.425392]  [<ffffffff8128bd99>] ? free_cpumask_var+0x9/0x10
[42635.425396]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42635.425400]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42635.425404]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42635.425408]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42635.425413]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42635.425418]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42635.425422]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42635.425427]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42635.425430] FIX selinux_inode_security: Object count adjusted.
[42640.824909] =============================================================================
[42640.825068] BUG kmalloc-192: Wrong object count. Counter is 5 but counted were 6
[42640.825221] -----------------------------------------------------------------------------
[42640.825222] 
[42640.825447] INFO: Slab 0xffffea00046fa100 objects=42 used=5 fp=0xffff88011be85a40 flags=0x60000000004081
[42640.825606] Pid: 17630, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42640.825609] Call Trace:
[42640.825617]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42640.825621]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42640.825625]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42640.825628]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42640.825632]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42640.825637]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42640.825642]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42640.825645]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42640.825650]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42640.825653] FIX kmalloc-192: Object count adjusted.
[42648.728040] =============================================================================
[42648.728199] BUG kmalloc-64: Wrong object count. Counter is 39 but counted were 40
[42648.728347] -----------------------------------------------------------------------------
[42648.728348] 
[42648.728579] INFO: Slab 0xffffea0004723400 objects=64 used=37 fp=0xffff88011c8d0ec0 flags=0x60000000000081
[42648.728735] Pid: 19370, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42648.728737] Call Trace:
[42648.728745]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42648.728748]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42648.728751]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42648.728753]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42648.728756]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42648.728760]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42648.728764]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42648.728766]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42648.728771]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42648.728772] FIX kmalloc-64: Object count adjusted.
[42648.774479] =============================================================================
[42648.774638] BUG kmalloc-64: Wrong object count. Counter is 39 but counted were 36
[42648.774790] -----------------------------------------------------------------------------
[42648.774792] 
[42648.775018] INFO: Slab 0xffffea0004723400 objects=64 used=39 fp=0xffff88011c8d0600 flags=0x60000000000081
[42648.775174] Pid: 19381, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42648.775176] Call Trace:
[42648.775187]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42648.775191]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42648.775195]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42648.775198]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42648.775202]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42648.775208]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42648.775212]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42648.775215]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42648.775222]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42648.775224] FIX kmalloc-64: Object count adjusted.
[42650.005252] =============================================================================
[42650.005415] BUG kmalloc-16: Wrong object count. Counter is 62 but counted were 63
[42650.005583] -----------------------------------------------------------------------------
[42650.005585] 
[42650.005817] INFO: Slab 0xffffea0001f57c80 objects=256 used=47 fp=0xffff88007d5f23e0 flags=0x10000000000081
[42650.005981] Pid: 19669, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42650.005983] Call Trace:
[42650.005991]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42650.005996]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42650.005999]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42650.006003]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42650.006006]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42650.006011]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42650.006015]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42650.006018]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42650.006023]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42650.006026] FIX kmalloc-16: Object count adjusted.
[42650.283404] =============================================================================
[42650.283571] BUG kmalloc-16: Wrong object count. Counter is 19 but counted were 21
[42650.283724] -----------------------------------------------------------------------------
[42650.283726] 
[42650.283954] INFO: Slab 0xffffea0004728a80 objects=256 used=14 fp=0xffff88011ca2a6a0 flags=0x60000000000081
[42650.284116] Pid: 19698, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42650.284118] Call Trace:
[42650.284129]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42650.284134]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42650.284138]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42650.284141]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42650.284144]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42650.284150]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42650.284156]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42650.284159]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42650.284166]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42650.284169] FIX kmalloc-16: Object count adjusted.
[42650.700060] =============================================================================
[42650.700219] BUG kmalloc-64: Wrong object count. Counter is 32 but counted were 33
[42650.700372] -----------------------------------------------------------------------------
[42650.700373] 
[42650.700601] INFO: Slab 0xffffea00044fe380 objects=64 used=32 fp=0xffff880113f8e700 flags=0x60000000000081
[42650.700761] Pid: 19863, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42650.700764] Call Trace:
[42650.700773]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42650.700778]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42650.700782]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42650.700786]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42650.700790]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42650.700795]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42650.700801]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42650.700803]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42650.700810]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42650.700813] FIX kmalloc-64: Object count adjusted.
[42650.770200] =============================================================================
[42650.770364] BUG kmalloc-64: Wrong object count. Counter is 33 but counted were 32
[42650.770520] -----------------------------------------------------------------------------
[42650.770522] 
[42650.770753] INFO: Slab 0xffffea00044fe380 objects=64 used=33 fp=0xffff880113f8e700 flags=0x60000000000081
[42650.770933] Pid: 19872, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42650.770935] Call Trace:
[42650.770946]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42650.770951]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42650.770954]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42650.770963]  [<ffffffff816c923e>] ? _raw_spin_unlock_irqrestore+0xe/0x20
[42650.770967]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42650.770971]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42650.770977]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42650.770982]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42650.770985]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42650.770991]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42650.770994] FIX kmalloc-64: Object count adjusted.
[42651.712140] =============================================================================
[42651.712302] BUG kmalloc-16: Wrong object count. Counter is 9 but counted were 10
[42651.712456] -----------------------------------------------------------------------------
[42651.712458] 
[42651.712686] INFO: Slab 0xffffea0001f158c0 objects=256 used=3 fp=0xffff88007c563070 flags=0x10000000000081
[42651.712848] Pid: 20076, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42651.712851] Call Trace:
[42651.712859]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42651.712863]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42651.712867]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42651.712870]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42651.712873]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42651.712878]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42651.712882]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42651.712886]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42651.712891]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42651.712894] FIX kmalloc-16: Object count adjusted.
[42652.605163] =============================================================================
[42652.605329] BUG kmalloc-128: Wrong object count. Counter is 27 but counted were 28
[42652.605486] -----------------------------------------------------------------------------
[42652.605488] 
[42652.605719] INFO: Slab 0xffffea00047299c0 objects=32 used=27 fp=0xffff88011ca67c80 flags=0x60000000000081
[42652.605882] Pid: 20247, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42652.605884] Call Trace:
[42652.605893]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42652.605897]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42652.605901]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42652.605905]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42652.605908]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42652.605913]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42652.605918]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42652.605921]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42652.605926]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42652.605929] FIX kmalloc-128: Object count adjusted.
[42652.675463] =============================================================================
[42652.675626] BUG kmalloc-128: Wrong object count. Counter is 28 but counted were 27
[42652.675782] -----------------------------------------------------------------------------
[42652.675784] 
[42652.676014] INFO: Slab 0xffffea00047299c0 objects=32 used=28 fp=0xffff88011ca67c80 flags=0x60000000000081
[42652.676186] Pid: 20268, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42652.676189] Call Trace:
[42652.676197]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42652.676201]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42652.676205]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42652.676208]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42652.676212]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42652.676216]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42652.676221]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42652.676224]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42652.676229]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42652.676232] FIX kmalloc-128: Object count adjusted.
[42653.190925] =============================================================================
[42653.191102] BUG files_cache: Wrong object count. Counter is 5 but counted were 6
[42653.191259] -----------------------------------------------------------------------------
[42653.191261] 
[42653.191493] INFO: Slab 0xffffea000472b600 objects=46 used=5 fp=0xffff88011caddd80 flags=0x60000000004081
[42653.191655] Pid: 20391, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42653.191658] Call Trace:
[42653.191668]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42653.191673]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42653.191677]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42653.191685]  [<ffffffff816c923e>] ? _raw_spin_unlock_irqrestore+0xe/0x20
[42653.191689]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42653.191693]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42653.191699]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42653.191704]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42653.191707]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42653.191712]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42653.191716] FIX files_cache: Object count adjusted.
[42653.596810] =============================================================================
[42653.596973] BUG kmalloc-256: Wrong object count. Counter is 6 but counted were 7
[42653.597130] -----------------------------------------------------------------------------
[42653.597132] 
[42653.597366] INFO: Slab 0xffffea00046ea400 objects=32 used=5 fp=0xffff88011ba91d00 flags=0x60000000004081
[42653.597530] Pid: 20487, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42653.597533] Call Trace:
[42653.597541]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42653.597545]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42653.597548]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42653.597552]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42653.597555]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42653.597560]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42653.597564]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42653.597567]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42653.597572]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42653.597574] FIX kmalloc-256: Object count adjusted.
[42653.642975] =============================================================================
[42653.643130] BUG kmalloc-256: Wrong object count. Counter is 7 but counted were 5
[42653.643293] -----------------------------------------------------------------------------
[42653.643294] 
[42653.643530] INFO: Slab 0xffffea00046ea400 objects=32 used=7 fp=0xffff88011ba91d00 flags=0x60000000004081
[42653.643685] Pid: 20507, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42653.643687] Call Trace:
[42653.643693]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42653.643698]  [<ffffffff8128bd99>] ? free_cpumask_var+0x9/0x10
[42653.643701]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42653.643704]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42653.643706]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42653.643709]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42653.643712]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42653.643715]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42653.643717]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42653.643721]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42653.643723] FIX kmalloc-256: Object count adjusted.
[42657.456254] =============================================================================
[42657.456414] BUG mm_struct: Wrong object count. Counter is 9 but counted were 10
[42657.456567] -----------------------------------------------------------------------------
[42657.456569] 
[42657.456804] INFO: Slab 0xffffea0001f12e00 objects=23 used=9 fp=0xffff88007c4bd280 flags=0x10000000004081
[42657.456968] Pid: 21495, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42657.456970] Call Trace:
[42657.456978]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42657.456983]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42657.456987]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42657.456991]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42657.456995]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42657.456999]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42657.457005]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42657.457008]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42657.457013]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42657.457016] FIX mm_struct: Object count adjusted.
[42657.524588] =============================================================================
[42657.524749] BUG mm_struct: Wrong object count. Counter is 9 but counted were 8
[42657.524902] -----------------------------------------------------------------------------
[42657.524904] 
[42657.525138] INFO: Slab 0xffffea0001f12e00 objects=23 used=9 fp=0xffff88007c4bf380 flags=0x10000000004081
[42657.525298] Pid: 21519, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42657.525301] Call Trace:
[42657.525309]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42657.525313]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42657.525317]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42657.525321]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42657.525324]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42657.525329]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42657.525333]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42657.525337]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42657.525342]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42657.525345] FIX mm_struct: Object count adjusted.
[42657.996274] =============================================================================
[42657.996438] BUG selinux_inode_security: Wrong object count. Counter is 43 but counted were 44
[42657.998199] -----------------------------------------------------------------------------
[42657.998201] 
[42657.998432] INFO: Slab 0xffffea0004706f00 objects=56 used=40 fp=0xffff88011c1bc5a0 flags=0x60000000000081
[42657.998595] Pid: 21688, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42657.998597] Call Trace:
[42657.998604]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42657.998609]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42657.998613]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42657.998616]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42657.998620]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42657.998625]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42657.998629]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42657.998632]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42657.998637]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42657.998641] FIX selinux_inode_security: Object count adjusted.
[42658.066185] =============================================================================
[42658.066344] BUG selinux_inode_security: Wrong object count. Counter is 44 but counted were 40
[42658.066500] -----------------------------------------------------------------------------
[42658.066501] 
[42658.066729] INFO: Slab 0xffffea0004706f00 objects=56 used=44 fp=0xffff88011c1bc5a0 flags=0x60000000000081
[42658.066887] Pid: 21705, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42658.066890] Call Trace:
[42658.066898]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42658.066902]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42658.066906]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42658.066910]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42658.066913]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42658.066918]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42658.066923]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42658.066925]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42658.066930]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42658.066933] FIX selinux_inode_security: Object count adjusted.
[42663.708769] =============================================================================
[42663.708926] BUG kmalloc-512: Wrong object count. Counter is 9 but counted were 10
[42663.709078] -----------------------------------------------------------------------------
[42663.709080] 
[42663.709312] INFO: Slab 0xffffea00046f0e00 objects=32 used=9 fp=0xffff88011bc39e00 flags=0x60000000004081
[42663.709478] Pid: 22908, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42663.709481] Call Trace:
[42663.709489]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42663.709493]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42663.709496]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42663.709499]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42663.709503]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42663.709509]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42663.709514]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42663.709517]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42663.709524]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42663.709527] FIX kmalloc-512: Object count adjusted.
[42663.774783] =============================================================================
[42663.774941] BUG kmalloc-512: Wrong object count. Counter is 8 but counted were 7
[42663.775093] -----------------------------------------------------------------------------
[42663.775095] 
[42663.775330] INFO: Slab 0xffffea00046f0e00 objects=32 used=8 fp=0xffff88011bc39c00 flags=0x60000000004081
[42663.775488] Pid: 22957, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42663.775490] Call Trace:
[42663.775498]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42663.775502]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42663.775506]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42663.775513]  [<ffffffff816c923e>] ? _raw_spin_unlock_irqrestore+0xe/0x20
[42663.775516]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42663.775520]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42663.775525]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42663.775529]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42663.775532]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42663.775537]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42663.775539] FIX kmalloc-512: Object count adjusted.
[42665.867898] =============================================================================
[42665.868058] BUG kmalloc-192: Wrong object count. Counter is 4 but counted were 5
[42665.868222] -----------------------------------------------------------------------------
[42665.868223] 
[42665.868454] INFO: Slab 0xffffea0001d00600 objects=42 used=4 fp=0xffff880074018840 flags=0x10000000004081
[42665.868612] Pid: 23309, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42665.868615] Call Trace:
[42665.868625]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42665.868629]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42665.868633]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42665.868637]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42665.868640]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42665.868645]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42665.868649]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42665.868652]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42665.868657]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42665.868660] FIX kmalloc-192: Object count adjusted.
[42667.279030] =============================================================================
[42667.279201] BUG kmalloc-32: Wrong object count. Counter is 48 but counted were 49
[42667.279356] -----------------------------------------------------------------------------
[42667.279358] 
[42667.279584] INFO: Slab 0xffffea0001f56480 objects=128 used=30 fp=0xffff88007d5925e0 flags=0x10000000000081
[42667.279744] Pid: 23597, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42667.279747] Call Trace:
[42667.279754]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42667.279759]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42667.279763]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42667.279767]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42667.279770]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42667.279774]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42667.279779]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42667.279782]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42667.279787]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42667.279790] FIX kmalloc-32: Object count adjusted.
[42667.349500] =============================================================================
[42667.349661] BUG kmalloc-32: Wrong object count. Counter is 45 but counted were 26
[42667.349819] -----------------------------------------------------------------------------
[42667.349820] 
[42667.350054] INFO: Slab 0xffffea0001f56480 objects=128 used=45 fp=0xffff88007d592900 flags=0x10000000000081
[42667.350216] Pid: 23667, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42667.350218] Call Trace:
[42667.350226]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42667.350230]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42667.350234]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42667.350237]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42667.350241]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42667.350245]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42667.350250]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42667.350253]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42667.350257]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42667.350260] FIX kmalloc-32: Object count adjusted.
[42670.139647] =============================================================================
[42670.139809] BUG kmalloc-32: Wrong object count. Counter is 11 but counted were 12
[42670.139967] -----------------------------------------------------------------------------
[42670.139968] 
[42670.140201] INFO: Slab 0xffffea0001f57280 objects=128 used=11 fp=0xffff88007d5cae40 flags=0x10000000000081
[42670.140365] Pid: 24137, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42670.140368] Call Trace:
[42670.140378]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42670.140382]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42670.140386]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42670.140390]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42670.140393]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42670.140398]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42670.140403]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42670.140406]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42670.140412]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42670.140415] FIX kmalloc-32: Object count adjusted.
[42674.564500] =============================================================================
[42674.564663] BUG kmalloc-192: Wrong object count. Counter is 3 but counted were 4
[42674.564820] -----------------------------------------------------------------------------
[42674.564822] 
[42674.565054] INFO: Slab 0xffffea0001f10000 objects=42 used=3 fp=0xffff88007c401080 flags=0x10000000004081
[42674.565218] Pid: 24985, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42674.565221] Call Trace:
[42674.565231]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42674.565236]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42674.565240]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42674.565244]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42674.565247]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42674.565253]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42674.565258]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42674.565261]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42674.565268]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42674.565271] FIX kmalloc-192: Object count adjusted.
[42678.865745] =============================================================================
[42678.865900] BUG vm_area_struct: Wrong object count. Counter is 20 but counted were 34
[42678.866051] -----------------------------------------------------------------------------
[42678.866052] 
[42678.866274] INFO: Slab 0xffffea000472fb00 objects=46 used=19 fp=0xffff88011cbed760 flags=0x60000000004081
[42678.866428] Pid: 25978, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42678.866430] Call Trace:
[42678.866436]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42678.866439]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42678.866442]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42678.866444]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42678.866447]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42678.866450]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42678.866454]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42678.866456]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42678.866460]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42678.866461] FIX vm_area_struct: Object count adjusted.
[42678.911513] =============================================================================
[42678.911668] BUG vm_area_struct: Wrong object count. Counter is 34 but counted were 19
[42678.911819] -----------------------------------------------------------------------------
[42678.911820] 
[42678.912042] INFO: Slab 0xffffea000472fb00 objects=46 used=34 fp=0xffff88011cbed760 flags=0x60000000004081
[42678.912196] Pid: 25983, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42678.912197] Call Trace:
[42678.912204]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42678.912207]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42678.912209]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42678.912215]  [<ffffffff816c923e>] ? _raw_spin_unlock_irqrestore+0xe/0x20
[42678.912218]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42678.912220]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42678.912224]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42678.912227]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42678.912229]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42678.912233]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42678.912235] FIX vm_area_struct: Object count adjusted.
[42680.366372] =============================================================================
[42680.366548] BUG kmalloc-96: Wrong object count. Counter is 32 but counted were 33
[42680.366702] -----------------------------------------------------------------------------
[42680.366704] 
[42680.366931] INFO: Slab 0xffffea0001f27080 objects=42 used=32 fp=0xffff88007c9c2c60 flags=0x10000000000081
[42680.367091] Pid: 26276, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42680.367094] Call Trace:
[42680.367103]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42680.367108]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42680.367112]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42680.367116]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42680.367120]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42680.367126]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42680.367131]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42680.367134]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42680.367141]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42680.367144] FIX kmalloc-96: Object count adjusted.
[42680.435088] =============================================================================
[42680.435246] BUG kmalloc-96: Wrong object count. Counter is 31 but counted were 30
[42680.435397] -----------------------------------------------------------------------------
[42680.435398] 
[42680.435630] INFO: Slab 0xffffea0001f27080 objects=42 used=31 fp=0xffff88007c9c2ea0 flags=0x10000000000081
[42680.435788] Pid: 26277, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42680.435791] Call Trace:
[42680.435801]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42680.435805]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42680.435809]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42680.435812]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42680.435815]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42680.435822]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42680.435827]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42680.435830]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42680.435836]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42680.435839] FIX kmalloc-96: Object count adjusted.
[42680.990846] =============================================================================
[42680.991011] BUG kmalloc-16: Wrong object count. Counter is 221 but counted were 223
[42680.991168] -----------------------------------------------------------------------------
[42680.991169] 
[42680.991402] INFO: Slab 0xffffea0001f28800 objects=256 used=220 fp=0xffff88007ca20510 flags=0x10000000000081
[42680.991574] Pid: 26401, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42680.991576] Call Trace:
[42680.991587]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42680.991592]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42680.991596]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42680.991600]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42680.991604]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42680.991610]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42680.991616]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42680.991619]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42680.991625]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42680.991628] FIX kmalloc-16: Object count adjusted.
[42681.344221] =============================================================================
[42681.344384] BUG kmalloc-192: Wrong object count. Counter is 3 but counted were 4
[42681.344541] -----------------------------------------------------------------------------
[42681.344543] 
[42681.344775] INFO: Slab 0xffffea0001ef4580 objects=42 used=3 fp=0xffff88007bd16cc0 flags=0x10000000004081
[42681.344939] Pid: 26485, comm: slabinfo Not tainted 3.2.0-rc2+ #142
[42681.344942] Call Trace:
[42681.344952]  [<ffffffff81127c66>] slab_err+0x76/0x90
[42681.344957]  [<ffffffff811293a4>] on_freelist+0x1c4/0x270
[42681.344961]  [<ffffffff8112a655>] validate_slab_slab+0x85/0x210
[42681.344965]  [<ffffffff8112be46>] validate_store+0xe6/0x210
[42681.344969]  [<ffffffff811272c1>] slab_attr_store+0x21/0x40
[42681.344974]  [<ffffffff811a8d19>] sysfs_write_file+0xf9/0x180
[42681.344980]  [<ffffffff81135c63>] vfs_write+0xb3/0x180
[42681.344983]  [<ffffffff81135f8a>] sys_write+0x4a/0x90
[42681.344989]  [<ffffffff816d112b>] system_call_fastpath+0x16/0x1b
[42681.344992] FIX kmalloc-192: Object count adjusted.


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^ permalink raw reply

* Re: sky2 tx watchdog timeout with 1Gb speed
From: Milan Kocian @ 2011-11-22  9:42 UTC (permalink / raw)
  To: Stephen Hemminger; +Cc: netdev
In-Reply-To: <20111121160543.2ae9c04c@nehalam.linuxnetplumber.net>

hi stephen,

many thanks for reply.

On Mon, Nov 21, 2011 at 04:05:43PM -0800, Stephen Hemminger wrote:
> On Mon, 21 Nov 2011 00:21:18 +0100
> Milan Kocian <milon@wq.cz> wrote:
> 
> > hi all,
> > 
> > I switched my home pc from 100Mb/s to 1000Mb/s and I see 
> > this warning below.
> > 
> > The original kernel was 2.6.39.4 then I tested 3.1.1 with the same
> > result. (self compiled 32bit vanilla). The workaround is to force 10/100 speed
> > on my new switch (hp).
> > 
> > lspci:
> > 
> > 03:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller (rev 13)
> >         Subsystem: Giga-byte Technology Device e000
> >         Flags: bus master, fast devsel, latency 0, IRQ 45
> >         Memory at f5000000 (64-bit, non-prefetchable) [size=16K]
> >         I/O ports at 9000 [size=256]
> >         [virtual] Expansion ROM at 80300000 [disabled] [size=128K]
> >         Capabilities: [48] Power Management version 3
> >         Capabilities: [50] Vital Product Data
> >         Capabilities: [5c] MSI: Enable+ Count=1/1 Maskable- 64bit+
> >         Capabilities: [e0] Express Legacy Endpoint, MSI 00
> >         Capabilities: [100] Advanced Error Reporting
> >         Kernel driver in use: sky2
> > 
> > 
> > Nov 20 21:32:54 milu kernel: sky2 0000:03:00.0: eth0: Link is up at 1000 Mbps, full duplex, flow control both
> > Nov 20 21:35:29 milu kernel: ------------[ cut here ]------------
> > Nov 20 21:35:29 milu kernel: WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x1fa/0x206()
> > Nov 20 21:35:29 milu kernel: Hardware name: 965GM-S2
> > Nov 20 21:35:29 milu kernel: NETDEV WATCHDOG: eth0 (sky2): transmit queue 0 timed out
> > Nov 20 21:35:29 milu kernel: Modules linked in: parport_pc parport fuse nfsd ipv6 nfs lockd auth_rpcgss nfs_acl sunrpc usbhid snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_intel8x0 sg snd_ac97_codec sr_mod ac97_bus cdrom sky2 snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss intel_agp snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd bitrev i2c_i801 crc32 intel_gtt uhci_hcd i2c_core ehci_hcd soundcore usbcore agpgart evdev snd_page_alloc
> > Nov 20 21:35:29 milu kernel: Pid: 0, comm: swapper Not tainted 3.1.1 #2
> > Nov 20 21:35:29 milu kernel: Call Trace:
> > Nov 20 21:35:29 milu kernel: [<c102cd5d>] ? warn_slowpath_common+0x6c/0x94
> > Nov 20 21:35:29 milu kernel: [<c1254deb>] ? dev_watchdog+0x1fa/0x206
> > Nov 20 21:35:29 milu kernel: [<c1254deb>] ? dev_watchdog+0x1fa/0x206
> > Nov 20 21:35:29 milu kernel: [<c102ce0e>] ? warn_slowpath_fmt+0x33/0x37
> > Nov 20 21:35:29 milu kernel: [<c1254deb>] ? dev_watchdog+0x1fa/0x206
> > Nov 20 21:35:29 milu kernel: [<c1254bf1>] ? qdisc_reset+0x2d/0x2d
> > Nov 20 21:35:29 milu kernel: [<c1036434>] ? run_timer_softirq+0xc6/0x1c4
> > Nov 20 21:35:29 milu kernel: [<c1027e9b>] ? run_rebalance_domains+0x148/0x169
> > Nov 20 21:35:29 milu kernel: [<c103163b>] ? __do_softirq+0x6e/0xea
> > Nov 20 21:35:29 milu kernel: [<c10315cd>] ? remote_softirq_receive+0x11/0x11
> > Nov 20 21:35:29 milu kernel: <IRQ>  [<c1031906>] ? irq_exit+0x5b/0x67
> > Nov 20 21:35:29 milu kernel: [<c101631f>] ? smp_apic_timer_interrupt+0x51/0x81
> > Nov 20 21:35:29 milu kernel: [<c12ccd96>] ? apic_timer_interrupt+0x2a/0x30
> > Nov 20 21:35:29 milu kernel: [<c13f007b>] ? asus_hides_smbus_hostbridge+0xcb/0x249
> > Nov 20 21:35:29 milu kernel: [<c1008732>] ? mwait_idle+0x41/0x51
> > Nov 20 21:35:29 milu kernel: [<c10015d8>] ? cpu_idle+0x74/0x84
> > Nov 20 21:35:29 milu kernel: [<c13d6638>] ? start_kernel+0x28a/0x28f
> > Nov 20 21:35:29 milu kernel: [<c13d615e>] ? loglevel+0x2b/0x2b
> > Nov 20 21:35:29 milu kernel: ---[ end trace ef84175f674c7842 ]---
> > Nov 20 21:35:29 milu kernel: sky2 0000:03:00.0: eth0: tx timeout
> > Nov 20 21:35:29 milu kernel: sky2 0000:03:00.0: eth0: transmit ring 52 .. 30 report=52 done=52
> > Nov 20 21:35:32 milu kernel: sky2 0000:03:00.0: eth0: Link is up at 1000 Mbps, full duplex, flow control both
> > Nov 20 21:37:13 milu kernel: sky2 0000:03:00.0: eth0: tx timeout
> > Nov 20 21:37:13 milu kernel: sky2 0000:03:00.0: eth0: transmit ring 37 .. 15 report=37 done=37
> > Nov 20 21:37:16 milu kernel: sky2 0000:03:00.0: eth0: Link is up at 1000 Mbps, full duplex, flow control both
> > 
> > Any suggestion ? As I said its home machine so I can test what you want :-).
> 
> I haven't seen this, is it under heavy or light traffic.

Imho heavy traffic is not needed (will do more tests). After boot all seems ok,
ping is working. But when I start something to do, net is freezing. It's not possible
to copy something over net.

> Are you running something that might cause device to miss interrupts?
> 

Imho no. In pc is nvidia card but the warning happens without nvidia driver
loaded (i tested sending data over net without X, no nvidia driver loaded
with the same result). For sure I'm sending /proc/interrupts and list of all devices.

I noticed one thing, when 1Gb is set I see this in kerne.log too:

Nov 20 21:49:31 milu kernel: ata1.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Nov 20 21:49:31 milu kernel: ata1.00: irq_stat 0x08000000, interface fatal error
Nov 20 21:49:31 milu kernel: ata1: SError: { UnrecovData Handshk }
Nov 20 21:49:31 milu kernel: ata1.00: failed command: WRITE DMA EXT
Nov 20 21:49:31 milu kernel: ata1.00: cmd 35/00:00:4f:d3:04/00:03:00:00:00/e0 tag 0 dma 393216 out
Nov 20 21:49:31 milu kernel:         res 50/00:00:f6:0c:e6/00:00:06:00:00/e6 Emask 0x10 (ATA bus error)
Nov 20 21:49:31 milu kernel: ata1.00: status: { DRDY }
Nov 20 21:49:31 milu kernel: ata1: hard resetting link
Nov 20 21:49:31 milu kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Nov 20 21:49:31 milu kernel: ata1.00: configured for UDMA/133
Nov 20 21:49:31 milu kernel: ata1: EH complete
Nov 20 21:50:12 milu kernel: ata1.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Nov 20 21:50:12 milu kernel: ata1.00: irq_stat 0x08000000, interface fatal error
Nov 20 21:50:12 milu kernel: ata1: SError: { UnrecovData Handshk }
Nov 20 21:50:12 milu kernel: ata1.00: failed command: WRITE DMA EXT
Nov 20 21:50:12 milu kernel: ata1.00: cmd 35/00:e0:17:a2:15/00:03:08:00:00/e0 tag 0 dma 507904 out
Nov 20 21:50:12 milu kernel:         res 50/00:00:16:a2:15/00:00:08:00:00/e0 Emask 0x10 (ATA bus error)
Nov 20 21:50:12 milu kernel: ata1.00: status: { DRDY }
Nov 20 21:50:12 milu kernel: ata1: hard resetting link
Nov 20 21:50:12 milu kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Nov 20 21:50:12 milu kernel: ata1.00: configured for UDMA/133
Nov 20 21:50:12 milu kernel: ata1: EH complete
Nov 20 21:50:12 milu kernel: ata1.00: exception Emask 0x10 SAct 0x0 SErr 0x400100 action 0x6 frozen
Nov 20 21:50:12 milu kernel: ata1.00: irq_stat 0x08000000, interface fatal error
Nov 20 21:50:12 milu kernel: ata1: SError: { UnrecovData Handshk }
Nov 20 21:50:12 milu kernel: ata1.00: failed command: WRITE DMA EXT
Nov 20 21:50:12 milu kernel: ata1.00: cmd 35/00:e0:c7:95:a9/00:03:08:00:00/e0 tag 0 dma 507904 out
Nov 20 21:50:12 milu kernel:         res 50/00:00:c6:95:a9/00:00:08:00:00/e0 Emask 0x10 (ATA bus error)


milu:~# cat /proc/interrupts 
           CPU0       CPU1       
  0:        555          0   IO-APIC-edge      timer
  1:      58816          0   IO-APIC-edge      i8042
  8:          1          0   IO-APIC-edge      rtc0
  9:          0          0   IO-APIC-fasteoi   acpi
 16:    2757269          0   IO-APIC-fasteoi   uhci_hcd:usb3, nvidia
 18:     206547          0   IO-APIC-fasteoi   ahci, ehci_hcd:usb1, uhci_hcd:usb7
 19:     770339          0   IO-APIC-fasteoi   pata_jmicron, uhci_hcd:usb6
 21:          0          0   IO-APIC-fasteoi   uhci_hcd:usb4
 23:          2          0   IO-APIC-fasteoi   ehci_hcd:usb2, uhci_hcd:usb5
 44:       1606      50210   PCI-MSI-edge      ahci
 45:    1092296          0   PCI-MSI-edge      sky2@pci:0000:03:00.0
 46:        377          0   PCI-MSI-edge      snd_hda_intel
NMI:          0          0   Non-maskable interrupts
LOC:  133229573  133104650   Local timer interrupts
SPU:          0          0   Spurious interrupts
PMI:          0          0   Performance monitoring interrupts
IWI:          0          0   IRQ work interrupts
RES:    1719676    2541118   Rescheduling interrupts
CAL:      72289     222200   Function call interrupts
TLB:      69670      53360   TLB shootdowns
TRM:          0          0   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
MCE:          0          0   Machine check exceptions
MCP:        438        438   Machine check polls
ERR:          0
MIS:          0

milu:~# lspci
00:00.0 Host bridge: Intel Corporation 82P965/G965 Memory Controller Hub (rev 02)
00:01.0 PCI bridge: Intel Corporation 82P965/G965 PCI Express Root Port (rev 02)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801HB (ICH8) 4 port SATA AHCI Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation G94 [GeForce 9600 GT] (rev a1)
03:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller (rev 13)
04:00.0 SATA controller: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02)
04:00.1 IDE interface: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02)
05:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)

Best regards,

-- 
Milan Kocian

^ permalink raw reply

* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Eric Dumazet @ 2011-11-22  9:38 UTC (permalink / raw)
  To: Markus Trippelsdorf
  Cc: Christoph Lameter, Christian Kujau, Benjamin Herrenschmidt,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <20111122084513.GA1688@x4.trippels.de>

Le mardi 22 novembre 2011 à 09:45 +0100, Markus Trippelsdorf a écrit :

> I sometimes see the following pattern. Is this a false positive?
> 
> 
> =============================================================================
> BUG anon_vma: Redzone overwritten
> -----------------------------------------------------------------------------
> 
> INFO: 0xffff88020f347c80-0xffff88020f347c87. First byte 0xbb instead of 0xcc
> INFO: Allocated in anon_vma_fork+0x51/0x140 age=1 cpu=2 pid=1826
> 	__slab_alloc.constprop.70+0x1ac/0x1e8
> 	kmem_cache_alloc+0x12e/0x160
> 	anon_vma_fork+0x51/0x140
> 	dup_mm+0x1f2/0x4a0
> 	copy_process+0xd10/0xf70
> 	do_fork+0x100/0x2b0
> 	sys_clone+0x23/0x30
> 	stub_clone+0x13/0x20
> INFO: Freed in __put_anon_vma+0x54/0xa0 age=0 cpu=1 pid=1827
> 	__slab_free+0x33/0x2d0
> 	kmem_cache_free+0x10e/0x120
> 	__put_anon_vma+0x54/0xa0
> 	unlink_anon_vmas+0x12f/0x1c0
> 	free_pgtables+0x83/0xe0
> 	exit_mmap+0xee/0x140
> 	mmput+0x43/0xf0
> 	flush_old_exec+0x33f/0x630
> 	load_elf_binary+0x340/0x1960
> 	search_binary_handler+0x8f/0x180
> 	do_execve+0x2d3/0x370
> 	sys_execve+0x42/0x70
> 	stub_execve+0x6c/0xc0
> INFO: Slab 0xffffea00083cd1c0 objects=10 used=9 fp=0xffff88020f347ab8 flags=0x4000000000000081
> INFO: Object 0xffff88020f347c40 @offset=3136 fp=0xffff88020f347ab8
> 
> Bytes b4 ffff88020f347c30: 39 b6 fb ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a  9.......ZZZZZZZZ
> Object ffff88020f347c40: 30 c9 9b 0d 02 88 ff ff 01 00 00 00 00 00 5a 5a  0.............ZZ
> Object ffff88020f347c50: 50 7c 34 0f 02 88 ff ff 50 7c 34 0f 02 88 ff ff  P|4.....P|4.....
> Object ffff88020f347c60: 00 00 00 00 00 00 00 00 00 00 00 00 5a 5a 5a 5a  ............ZZZZ
> Object ffff88020f347c70: 70 7c 34 0f 02 88 ff ff 70 7c 34 0f 02 88 ff ff  p|4.....p|4.....
> Redzone ffff88020f347c80: bb bb bb bb bb bb bb bb                          ........
> Padding ffff88020f347dc0: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
> Pid: 1820, comm: slabinfo Not tainted 3.2.0-rc2-00369-gbbbc479-dirty #83
> Call Trace:
>  [<ffffffff81105df8>] ? print_section+0x38/0x40
>  [<ffffffff811062f3>] print_trailer+0xe3/0x150
>  [<ffffffff811064f0>] check_bytes_and_report+0xe0/0x100
>  [<ffffffff81107313>] check_object+0x183/0x240
>  [<ffffffff81107eb0>] validate_slab_slab+0x1c0/0x230
>  [<ffffffff8110a4a6>] validate_store+0xa6/0x190
>  [<ffffffff8110573c>] slab_attr_store+0x1c/0x30
>  [<ffffffff81168838>] sysfs_write_file+0xc8/0x140
>  [<ffffffff811124a3>] vfs_write+0xa3/0x160
>  [<ffffffff81112635>] sys_write+0x45/0x90
>  [<ffffffff814d3ffb>] system_call_fastpath+0x16/0x1b
> FIX anon_vma: Restoring 0xffff88020f347c80-0xffff88020f347c87=0xcc


Wait a minute

You trigger this using slabinfo looping or something ?

Bug is in slabinfo then, dont use it, and see if bug triggers.

Given slub is now lockless, validate_slab_slab() is probably very wrong
these days.


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* Re: Kernel v3.0.8 igb driver dies when pulling network cable
From: Stefan Priebe - Profihost AG @ 2011-11-22  9:36 UTC (permalink / raw)
  To: Alexander Duyck
  Cc: Stable Tree, stable, Greg KH, LKML, Linux Netdev List,
	Jeff Kirsher,
	Jesse Brandeburg <jesse.brandeburg@intel.com> Bruce Allan,
	Carolyn Wyborny, Don Skidmore, Greg Rose, PJ Waskiewicz,
	John Ronciak
In-Reply-To: <4ECAD3D4.4070306@intel.com>

> It would be useful if you could try the latest driver from e1000.sf.net
> just to verify  if this is a bug in the upstream kernel or if it is also
> present in our e1000.sf.net.driver.  This way we can figure out if this
> is an issue where a patch wasn't pushed into the stable kernel or if it
> is an issue that still exists in our latest release.
>
> Also could you provide us with the part number you are currently using.
> If you could provide us with the device ID for the part via lspci we can
> start narrowing down the root cause for the issue as currently we don't
> have any information about what hardware you are experiencing this issue on.

Ok another note i missed last time. Ethernet and Server stays fully 
functional - it just prints the message and resets the adapter.

OK let's start with lspci:
a:00.0 Ethernet controller: Intel Corporation Device 10c9 (rev 01)
         Subsystem: Super Micro Computer Inc Device 10c9
         Flags: bus master, fast devsel, latency 0, IRQ 28
         Memory at fbe60000 (32-bit, non-prefetchable) [size=128K]
         Memory at fbe40000 (32-bit, non-prefetchable) [size=128K]
         I/O ports at e880 [size=32]
         Memory at fbe1c000 (32-bit, non-prefetchable) [size=16K]
         Expansion ROM at fbe20000 [disabled] [size=128K]
         Capabilities: [40] Power Management version 3
         Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ 
Queue=0/0 Enable-
         Capabilities: [70] MSI-X: Enable+ Mask- TabSize=10
         Capabilities: [a0] Express Endpoint, MSI 00
         Capabilities: [100] Advanced Error Reporting <?>
         Capabilities: [140] Device Serial Number ce-5a-2b-ff-ff-90-25-00
         Capabilities: [150] #0e
         Capabilities: [160] #10
         Kernel driver in use: igb

0a:00.1 Ethernet controller: Intel Corporation Device 10c9 (rev 01)
         Subsystem: Super Micro Computer Inc Device 10c9
         Flags: bus master, fast devsel, latency 0, IRQ 40
         Memory at fbee0000 (32-bit, non-prefetchable) [size=128K]
         Memory at fbec0000 (32-bit, non-prefetchable) [size=128K]
         I/O ports at ec00 [size=32]
         Memory at fbe9c000 (32-bit, non-prefetchable) [size=16K]
         Expansion ROM at fbea0000 [disabled] [size=128K]
         Capabilities: [40] Power Management version 3
         Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ 
Queue=0/0 Enable-
         Capabilities: [70] MSI-X: Enable+ Mask- TabSize=10
         Capabilities: [a0] Express Endpoint, MSI 00
         Capabilities: [100] Advanced Error Reporting <?>
         Capabilities: [140] Device Serial Number ce-5a-2b-ff-ff-90-25-00
         Capabilities: [150] #0e
         Capabilities: [160] #10
         Kernel driver in use: igb

Using the latest stable igb driver from e1000.sf.net works fine without 
any message.

Thanks,

Stefan

^ permalink raw reply

* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Eric Dumazet @ 2011-11-22  9:27 UTC (permalink / raw)
  To: Markus Trippelsdorf
  Cc: Christoph Lameter, Christian Kujau, Benjamin Herrenschmidt,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <1321953911.2474.1.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>

Le mardi 22 novembre 2011 à 10:25 +0100, Eric Dumazet a écrit :

> One thing you could do is to disable slub merge, with following
> additional boot param : "slub_nomerge=1"
> 
> 

Oh well, this is the default with debug options, sorry.



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^ permalink raw reply

* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Eric Dumazet @ 2011-11-22  9:25 UTC (permalink / raw)
  To: Markus Trippelsdorf
  Cc: Christoph Lameter, Christian Kujau, Benjamin Herrenschmidt,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <20111122084513.GA1688@x4.trippels.de>

Le mardi 22 novembre 2011 à 09:45 +0100, Markus Trippelsdorf a écrit :
> On 2011.11.21 at 21:18 -0600, Christoph Lameter wrote:
> > On Mon, 21 Nov 2011, Christian Kujau wrote:
> > 
> > > On Tue, 22 Nov 2011 at 07:27, Benjamin Herrenschmidt wrote:
> > > > Note that I hit a similar looking crash (sorry, I couldn't capture a
> > > > backtrace back then) on a PowerMac G5 (ppc64) while doing a large rsync
> > > > transfer yesterday with -rc2-something (cfcfc9ec) and
> > > > Christian Kujau (CC) seems to be able to reproduce something similar on
> > > > some other ppc platform (Christian, what is your setup ?)
> > >
> > > I seem to hit it with heavy disk & cpu IO is in progress on this PowerBook
> > > G4. Full dmesg & .config: http://nerdbynature.de/bits/3.2.0-rc1/oops/
> > >
> > > I've enabled some debug options and now it really points to slub.c:2166
> > 
> 
> I sometimes see the following pattern. Is this a false positive?
> 
> 
> =============================================================================
> BUG anon_vma: Redzone overwritten
> -----------------------------------------------------------------------------
> 
> INFO: 0xffff88020f347c80-0xffff88020f347c87. First byte 0xbb instead of 0xcc
> INFO: Allocated in anon_vma_fork+0x51/0x140 age=1 cpu=2 pid=1826
> 	__slab_alloc.constprop.70+0x1ac/0x1e8
> 	kmem_cache_alloc+0x12e/0x160
> 	anon_vma_fork+0x51/0x140
> 	dup_mm+0x1f2/0x4a0
> 	copy_process+0xd10/0xf70
> 	do_fork+0x100/0x2b0
> 	sys_clone+0x23/0x30
> 	stub_clone+0x13/0x20
> INFO: Freed in __put_anon_vma+0x54/0xa0 age=0 cpu=1 pid=1827
> 	__slab_free+0x33/0x2d0
> 	kmem_cache_free+0x10e/0x120
> 	__put_anon_vma+0x54/0xa0
> 	unlink_anon_vmas+0x12f/0x1c0
> 	free_pgtables+0x83/0xe0
> 	exit_mmap+0xee/0x140
> 	mmput+0x43/0xf0
> 	flush_old_exec+0x33f/0x630
> 	load_elf_binary+0x340/0x1960
> 	search_binary_handler+0x8f/0x180
> 	do_execve+0x2d3/0x370
> 	sys_execve+0x42/0x70
> 	stub_execve+0x6c/0xc0
> INFO: Slab 0xffffea00083cd1c0 objects=10 used=9 fp=0xffff88020f347ab8 flags=0x4000000000000081
> INFO: Object 0xffff88020f347c40 @offset=3136 fp=0xffff88020f347ab8

One thing you could do is to disable slub merge, with following
additional boot param : "slub_nomerge=1"



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^ permalink raw reply

* Re: MPLS for Linux kernel
From: Igor Maravić @ 2011-11-22  8:52 UTC (permalink / raw)
  To: jorge; +Cc: davem, netdev
In-Reply-To: <4ECAA41C.9040007@dti2.net>

What are the main reasons for You to think that mpls-linux is not
ready to go upstream?
As I said, I fixed a lot of bugs so code can be run with all the
kernel hacking options enabled, without causing panics and oopses.
Also fixed a lot of other things and added preprocessor if statements
where code is intertwined with normal kernel code, so I'm sure that it
want break existing kernel compilation if the kernel is compiled
without MPLS.
Why would it be so hard to implemented it in terms of packet scheduler?
BR
Igor

2011/11/21 Jorge Boncompte [DTI2] <jorge@dti2.net>:
> El 21/11/2011 19:29, David Miller escribió:
>> From: "Jorge Boncompte [DTI2]" <jorge@dti2.net>
>> Date: Mon, 21 Nov 2011 16:01:26 +0100
>>
>>>      mpls-linux it is not ready to go upstream in my opinion.
>>
>> And can arguably be implemented in terms of openvswitch and packet scheduler actions.
>
>        I guess so, I have not really looked much at the openvswitch code. The MPLS
> code it is pretty self contained and in my opinion more tied to routing than to
> switching (*). I don't think it should be necessary an userspace daemon, like it
> seems necessary for openvswitch, just to bind a label to a route, the same way
> that it is not necessary a daemon to support VLAN's currently. The label
> signaling protocols are already complicated :)
>
>        I work in this code, like a lot of people do, because I have a use for it. I
> would really like to see it upstreamed but if it does not fit upstream plans, it
> is not a problem, this code it is not that hard to maintain.
>
>        In any case critics/reviews/patches are most than welcome.
>
> (*) The code that you implemented for 2.6.1 and that James R. Leu used in this
> codebase it is even more tied together to routing.
>
>

^ permalink raw reply

* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Markus Trippelsdorf @ 2011-11-22  8:45 UTC (permalink / raw)
  To: Christoph Lameter
  Cc: Christian Kujau, Benjamin Herrenschmidt, Eric Dumazet, Alex,Shi,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org, Pekka Enberg,
	Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <alpine.DEB.2.00.1111212105330.19606@router.home>

On 2011.11.21 at 21:18 -0600, Christoph Lameter wrote:
> On Mon, 21 Nov 2011, Christian Kujau wrote:
> 
> > On Tue, 22 Nov 2011 at 07:27, Benjamin Herrenschmidt wrote:
> > > Note that I hit a similar looking crash (sorry, I couldn't capture a
> > > backtrace back then) on a PowerMac G5 (ppc64) while doing a large rsync
> > > transfer yesterday with -rc2-something (cfcfc9ec) and
> > > Christian Kujau (CC) seems to be able to reproduce something similar on
> > > some other ppc platform (Christian, what is your setup ?)
> >
> > I seem to hit it with heavy disk & cpu IO is in progress on this PowerBook
> > G4. Full dmesg & .config: http://nerdbynature.de/bits/3.2.0-rc1/oops/
> >
> > I've enabled some debug options and now it really points to slub.c:2166
> 

I sometimes see the following pattern. Is this a false positive?


=============================================================================
BUG anon_vma: Redzone overwritten
-----------------------------------------------------------------------------

INFO: 0xffff88020f347c80-0xffff88020f347c87. First byte 0xbb instead of 0xcc
INFO: Allocated in anon_vma_fork+0x51/0x140 age=1 cpu=2 pid=1826
	__slab_alloc.constprop.70+0x1ac/0x1e8
	kmem_cache_alloc+0x12e/0x160
	anon_vma_fork+0x51/0x140
	dup_mm+0x1f2/0x4a0
	copy_process+0xd10/0xf70
	do_fork+0x100/0x2b0
	sys_clone+0x23/0x30
	stub_clone+0x13/0x20
INFO: Freed in __put_anon_vma+0x54/0xa0 age=0 cpu=1 pid=1827
	__slab_free+0x33/0x2d0
	kmem_cache_free+0x10e/0x120
	__put_anon_vma+0x54/0xa0
	unlink_anon_vmas+0x12f/0x1c0
	free_pgtables+0x83/0xe0
	exit_mmap+0xee/0x140
	mmput+0x43/0xf0
	flush_old_exec+0x33f/0x630
	load_elf_binary+0x340/0x1960
	search_binary_handler+0x8f/0x180
	do_execve+0x2d3/0x370
	sys_execve+0x42/0x70
	stub_execve+0x6c/0xc0
INFO: Slab 0xffffea00083cd1c0 objects=10 used=9 fp=0xffff88020f347ab8 flags=0x4000000000000081
INFO: Object 0xffff88020f347c40 @offset=3136 fp=0xffff88020f347ab8

Bytes b4 ffff88020f347c30: 39 b6 fb ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a  9.......ZZZZZZZZ
Object ffff88020f347c40: 30 c9 9b 0d 02 88 ff ff 01 00 00 00 00 00 5a 5a  0.............ZZ
Object ffff88020f347c50: 50 7c 34 0f 02 88 ff ff 50 7c 34 0f 02 88 ff ff  P|4.....P|4.....
Object ffff88020f347c60: 00 00 00 00 00 00 00 00 00 00 00 00 5a 5a 5a 5a  ............ZZZZ
Object ffff88020f347c70: 70 7c 34 0f 02 88 ff ff 70 7c 34 0f 02 88 ff ff  p|4.....p|4.....
Redzone ffff88020f347c80: bb bb bb bb bb bb bb bb                          ........
Padding ffff88020f347dc0: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
Pid: 1820, comm: slabinfo Not tainted 3.2.0-rc2-00369-gbbbc479-dirty #83
Call Trace:
 [<ffffffff81105df8>] ? print_section+0x38/0x40
 [<ffffffff811062f3>] print_trailer+0xe3/0x150
 [<ffffffff811064f0>] check_bytes_and_report+0xe0/0x100
 [<ffffffff81107313>] check_object+0x183/0x240
 [<ffffffff81107eb0>] validate_slab_slab+0x1c0/0x230
 [<ffffffff8110a4a6>] validate_store+0xa6/0x190
 [<ffffffff8110573c>] slab_attr_store+0x1c/0x30
 [<ffffffff81168838>] sysfs_write_file+0xc8/0x140
 [<ffffffff811124a3>] vfs_write+0xa3/0x160
 [<ffffffff81112635>] sys_write+0x45/0x90
 [<ffffffff814d3ffb>] system_call_fastpath+0x16/0x1b
FIX anon_vma: Restoring 0xffff88020f347c80-0xffff88020f347c87=0xcc

=============================================================================
BUG kmalloc-64: Redzone overwritten
-----------------------------------------------------------------------------

INFO: 0xffff880214361970-0xffff880214361977. First byte 0xbb instead of 0xcc
INFO: Allocated in drm_mm_kmalloc+0x37/0xd0 age=14 cpu=0 pid=1539
	__slab_alloc.constprop.70+0x1ac/0x1e8
	kmem_cache_alloc_trace+0x136/0x170
	drm_mm_kmalloc+0x37/0xd0
	drm_mm_get_block_range_generic+0x37/0x80
	ttm_bo_man_get_node+0x8f/0xd0
	ttm_bo_mem_space+0x192/0x380
	ttm_bo_move_buffer+0xe8/0x150
	ttm_bo_validate+0x94/0x110
	ttm_bo_init+0x2a2/0x360
	radeon_bo_create+0x16a/0x2b0
	radeon_gem_object_create+0x55/0xf0
	radeon_gem_create_ioctl+0x52/0xc0
	drm_ioctl+0x404/0x4f0
	do_vfs_ioctl+0x8c/0x500
	sys_ioctl+0x4a/0x80
	system_call_fastpath+0x16/0x1b
INFO: Freed in drm_mm_put_block+0x70/0x80 age=0 cpu=1 pid=766
	__slab_free+0x33/0x2d0
	kfree+0x12b/0x150
	drm_mm_put_block+0x70/0x80
	ttm_bo_man_put_node+0x34/0x50
	ttm_bo_cleanup_memtype_use+0x59/0x80
	ttm_bo_cleanup_refs+0xee/0x150
	ttm_bo_delayed_delete+0xf2/0x150
	ttm_bo_delayed_workqueue+0x1a/0x40
	process_one_work+0x11a/0x430
	worker_thread+0x126/0x2d0
	kthread+0x87/0x90
	kernel_thread_helper+0x4/0x10
INFO: Slab 0xffffea000850d840 objects=10 used=6 fp=0xffff880214361dc8 flags=0x4000000000000081
INFO: Object 0xffff880214361930 @offset=2352 fp=0xffff880214361dc8

Bytes b4 ffff880214361920: 58 ac fb ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a  X.......ZZZZZZZZ
Object ffff880214361930: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
Object ffff880214361940: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
Object ffff880214361950: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
Object ffff880214361960: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  kkkkkkkkkkkkkkk.
Redzone ffff880214361970: bb bb bb bb bb bb bb bb                          ........
Padding ffff880214361ab0: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
Pid: 1820, comm: slabinfo Not tainted 3.2.0-rc2-00369-gbbbc479-dirty #83
Call Trace:
 [<ffffffff81105df8>] ? print_section+0x38/0x40
 [<ffffffff811062f3>] print_trailer+0xe3/0x150
 [<ffffffff811064f0>] check_bytes_and_report+0xe0/0x100
 [<ffffffff81107313>] check_object+0x183/0x240
 [<ffffffff81107eb0>] validate_slab_slab+0x1c0/0x230
 [<ffffffff8110a4a6>] validate_store+0xa6/0x190
 [<ffffffff8110573c>] slab_attr_store+0x1c/0x30
 [<ffffffff81168838>] sysfs_write_file+0xc8/0x140
 [<ffffffff811124a3>] vfs_write+0xa3/0x160
 [<ffffffff81112635>] sys_write+0x45/0x90
 [<ffffffff814d3ffb>] system_call_fastpath+0x16/0x1b
FIX kmalloc-64: Restoring 0xffff880214361970-0xffff880214361977=0xcc

=============================================================================
BUG kmalloc-64: Redzone overwritten
-----------------------------------------------------------------------------

INFO: 0xffff880214361970-0xffff880214361977. First byte 0xcc instead of 0xbb
INFO: Allocated in drm_mm_kmalloc+0x37/0xd0 age=1028 cpu=0 pid=1539
	__slab_alloc.constprop.70+0x1ac/0x1e8
	kmem_cache_alloc_trace+0x136/0x170
	drm_mm_kmalloc+0x37/0xd0
	drm_mm_get_block_range_generic+0x37/0x80
	ttm_bo_man_get_node+0x8f/0xd0
	ttm_bo_mem_space+0x192/0x380
	ttm_bo_move_buffer+0xe8/0x150
	ttm_bo_validate+0x94/0x110
	ttm_bo_init+0x2a2/0x360
	radeon_bo_create+0x16a/0x2b0
	radeon_gem_object_create+0x55/0xf0
	radeon_gem_create_ioctl+0x52/0xc0
	drm_ioctl+0x404/0x4f0
	do_vfs_ioctl+0x8c/0x500
	sys_ioctl+0x4a/0x80
	system_call_fastpath+0x16/0x1b
INFO: Freed in drm_mm_put_block+0x70/0x80 age=1014 cpu=1 pid=766
	__slab_free+0x33/0x2d0
	kfree+0x12b/0x150
	drm_mm_put_block+0x70/0x80
	ttm_bo_man_put_node+0x34/0x50
	ttm_bo_cleanup_memtype_use+0x59/0x80
	ttm_bo_cleanup_refs+0xee/0x150
	ttm_bo_delayed_delete+0xf2/0x150
	ttm_bo_delayed_workqueue+0x1a/0x40
	process_one_work+0x11a/0x430
	worker_thread+0x126/0x2d0
	kthread+0x87/0x90
	kernel_thread_helper+0x4/0x10
INFO: Slab 0xffffea000850d840 objects=10 used=10 fp=0x          (null) flags=0x4000000000000080
INFO: Object 0xffff880214361930 @offset=2352 fp=0xffff880214361dc8

Bytes b4 ffff880214361920: 9d b7 fb ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a  ........ZZZZZZZZ
Object ffff880214361930: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
Object ffff880214361940: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
Object ffff880214361950: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
Object ffff880214361960: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  kkkkkkkkkkkkkkk.
Redzone ffff880214361970: cc cc cc cc cc cc cc cc                          ........
Padding ffff880214361ab0: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
Pid: 1837, comm: uptime Not tainted 3.2.0-rc2-00369-gbbbc479-dirty #83
Call Trace:
 [<ffffffff81105df8>] ? print_section+0x38/0x40
 [<ffffffff811062f3>] print_trailer+0xe3/0x150
 [<ffffffff811064f0>] check_bytes_and_report+0xe0/0x100
 [<ffffffff81107313>] check_object+0x183/0x240
 [<ffffffff8115ab86>] ? proc_reg_open+0x46/0x170
 [<ffffffff814ccbbb>] alloc_debug_processing+0x62/0xe4
 [<ffffffff814cd479>] __slab_alloc.constprop.70+0x1ac/0x1e8
 [<ffffffff8115ab86>] ? proc_reg_open+0x46/0x170
 [<ffffffff8108e416>] ? bit_waitqueue+0x16/0xb0
 [<ffffffff81125b3d>] ? __d_instantiate+0xbd/0xf0
 [<ffffffff811091b6>] kmem_cache_alloc_trace+0x136/0x170
 [<ffffffff8115ab86>] ? proc_reg_open+0x46/0x170
 [<ffffffff8116051e>] ? proc_lookup_de+0xde/0xf0
 [<ffffffff8115ab86>] proc_reg_open+0x46/0x170
 [<ffffffff8115ab40>] ? init_once+0x10/0x10
 [<ffffffff8111055e>] __dentry_open.isra.15+0x20e/0x2f0
 [<ffffffff81095569>] ? in_group_p+0x29/0x30
 [<ffffffff8111122e>] nameidata_to_filp+0x4e/0x60
 [<ffffffff8111f124>] do_last.isra.46+0x2a4/0x7f0
 [<ffffffff8111f736>] path_openat+0xc6/0x370
 [<ffffffff810f634d>] ? do_brk+0x2fd/0x3b0
 [<ffffffff8111c1c6>] ? getname_flags+0x36/0x230
 [<ffffffff810f0582>] ? handle_mm_fault+0x192/0x290
 [<ffffffff8111fa1c>] do_filp_open+0x3c/0x90
 [<ffffffff8112c96c>] ? alloc_fd+0xdc/0x120
 [<ffffffff81111687>] do_sys_open+0xe7/0x1c0
 [<ffffffff8111177b>] sys_open+0x1b/0x20
 [<ffffffff814d3ffb>] system_call_fastpath+0x16/0x1b
FIX kmalloc-64: Restoring 0xffff880214361970-0xffff880214361977=0xbb

FIX kmalloc-64: Marking all objects used
=============================================================================
BUG anon_vma: Redzone overwritten
-----------------------------------------------------------------------------

INFO: 0xffff88020f347c80-0xffff88020f347c87. First byte 0xcc instead of 0xbb
INFO: Allocated in anon_vma_fork+0x51/0x140 age=1034 cpu=2 pid=1826
	__slab_alloc.constprop.70+0x1ac/0x1e8
	kmem_cache_alloc+0x12e/0x160
	anon_vma_fork+0x51/0x140
	dup_mm+0x1f2/0x4a0
	copy_process+0xd10/0xf70
	do_fork+0x100/0x2b0
	sys_clone+0x23/0x30
	stub_clone+0x13/0x20
INFO: Freed in __put_anon_vma+0x54/0xa0 age=1033 cpu=1 pid=1827
	__slab_free+0x33/0x2d0
	kmem_cache_free+0x10e/0x120
	__put_anon_vma+0x54/0xa0
	unlink_anon_vmas+0x12f/0x1c0
	free_pgtables+0x83/0xe0
	exit_mmap+0xee/0x140
	mmput+0x43/0xf0
	flush_old_exec+0x33f/0x630
	load_elf_binary+0x340/0x1960
	search_binary_handler+0x8f/0x180
	do_execve+0x2d3/0x370
	sys_execve+0x42/0x70
	stub_execve+0x6c/0xc0
INFO: Slab 0xffffea00083cd1c0 objects=10 used=10 fp=0x          (null) flags=0x4000000000000080
INFO: Object 0xffff88020f347c40 @offset=3136 fp=0xffff88020f347620

Bytes b4 ffff88020f347c30: 39 b6 fb ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a  9.......ZZZZZZZZ
Object ffff88020f347c40: 30 c9 9b 0d 02 88 ff ff 01 00 00 00 00 00 5a 5a  0.............ZZ
Object ffff88020f347c50: 50 7c 34 0f 02 88 ff ff 50 7c 34 0f 02 88 ff ff  P|4.....P|4.....
Object ffff88020f347c60: 00 00 00 00 00 00 00 00 00 00 00 00 5a 5a 5a 5a  ............ZZZZ
Object ffff88020f347c70: 70 7c 34 0f 02 88 ff ff 70 7c 34 0f 02 88 ff ff  p|4.....p|4.....
Redzone ffff88020f347c80: cc cc cc cc cc cc cc cc                          ........
Padding ffff88020f347dc0: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
Pid: 1839, comm: date Not tainted 3.2.0-rc2-00369-gbbbc479-dirty #83
Call Trace:
 [<ffffffff81105df8>] ? print_section+0x38/0x40
 [<ffffffff811062f3>] print_trailer+0xe3/0x150
 [<ffffffff811064f0>] check_bytes_and_report+0xe0/0x100
 [<ffffffff81107313>] check_object+0x183/0x240
 [<ffffffff810f9955>] ? anon_vma_prepare+0x115/0x180
 [<ffffffff814ccbbb>] alloc_debug_processing+0x62/0xe4
 [<ffffffff814cd479>] __slab_alloc.constprop.70+0x1ac/0x1e8
 [<ffffffff810f9955>] ? anon_vma_prepare+0x115/0x180
 [<ffffffff810d5a5e>] ? __alloc_pages_nodemask+0xfe/0x7a0
 [<ffffffff8110904e>] kmem_cache_alloc+0x12e/0x160
 [<ffffffff810f9955>] ? anon_vma_prepare+0x115/0x180
 [<ffffffff810f9895>] ? anon_vma_prepare+0x55/0x180
 [<ffffffff810f9955>] anon_vma_prepare+0x115/0x180
 [<ffffffff810f00f1>] handle_pte_fault+0x611/0x7d0
 [<ffffffff8105c79a>] ? pte_alloc_one+0x3a/0x40
 [<ffffffff810edf46>] ? __pte_alloc+0x76/0x110
 [<ffffffff8110fb42>] do_huge_pmd_anonymous_page+0xb2/0x2f0
 [<ffffffff810f634d>] ? do_brk+0x2fd/0x3b0
 [<ffffffff810f0524>] handle_mm_fault+0x134/0x290
 [<ffffffff810591b2>] do_page_fault+0x112/0x440
 [<ffffffff810f428b>] ? vma_link+0x9b/0xa0
 [<ffffffff810f62ba>] ? do_brk+0x26a/0x3b0
 [<ffffffff81045429>] ? init_fpu+0xb9/0x150
 [<ffffffff814d3bef>] page_fault+0x1f/0x30
FIX anon_vma: Restoring 0xffff88020f347c80-0xffff88020f347c87=0xbb

FIX anon_vma: Marking all objects used

-- 
Markus

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^ permalink raw reply

* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Christian Kujau @ 2011-11-22  8:39 UTC (permalink / raw)
  To: Eric Dumazet
  Cc: Christoph Lameter, Benjamin Herrenschmidt, Markus Trippelsdorf,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <1321948113.27077.24.camel@edumazet-laptop>

On Tue, 22 Nov 2011 at 08:48, Eric Dumazet wrote:
> > --- linux-2.6.orig/mm/slub.c	2011-11-21 21:15:41.575673204 -0600
> > +++ linux-2.6/mm/slub.c	2011-11-21 21:16:33.442336849 -0600
> > @@ -1969,7 +1969,7 @@
> >  		page->pobjects = pobjects;
> >  		page->next = oldpage;
> > 
> > -	} while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
> > +	} while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
> >  	stat(s, CPU_PARTIAL_FREE);
> >  	return pobjects;
> >  }

Is this a patch to try for my PowerPC machine? With CONFIG_SLUB=y?

> For x86, I wonder if our !X86_FEATURE_CX16 support is correct on SMP
> machines.

I'm on UP, don't have any x68/SMP machines to test atm :(

Christian.
-- 
BOFH excuse #176:

vapors from evaporating sticky-note adhesives

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* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Christian Kujau @ 2011-11-22  8:37 UTC (permalink / raw)
  To: Benjamin Herrenschmidt
  Cc: Markus Trippelsdorf, Eric Dumazet, Alex,Shi,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Christoph Lameter, Pekka Enberg, Matt Mackall,
	netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <1321928235.13860.31.camel@pasglop>

On Tue, 22 Nov 2011 at 13:17, Benjamin Herrenschmidt wrote:
> Is your powerbook one of those who can actually use xmon ? (ie, keyboard
> is working ? If it's usb it won't but if it's adb it will).

Yes, with CONFIG_XMON=y the xmon> prompt appeared on the screen and the 
keyboard was working too. See the xmon* jpegs here:

   http://nerdbynature.de/bits/3.2.0-rc1/oops/

> What would be useful would be to see if you can reproduce with SLAB
> and/or after backing out the cpu partial functionality.

I'm currently running with SLUB again but with 
/sys/kernel/slab/*/cpu_partial all set to "0" (affecting ~250 files).

The box is running for some hours now and pretty loaded with both CPU and 
disk i/o (load 6-7, which is pretty high for this machine) and it did not 
oops yet. Looks like setting cpu_partial to 0 does make a difference.

Christian.

# cat /proc/cpuinfo 
processor       : 0
cpu             : 7447A, altivec supported
clock           : 749.999000MHz
revision        : 1.2 (pvr 8003 0102)
bogomips        : 36.86
timebase        : 18432000
platform        : PowerMac
model           : PowerBook6,8
machine         : PowerBook6,8
motherboard     : PowerBook6,8 MacRISC3 Power Macintosh 
detected as     : 287 (PowerBook G4 12")
pmac flags      : 0000001a
L2 cache        : 512K unified
pmac-generation : NewWorld
Memory          : 1280 MB

-- 
BOFH excuse #176:

vapors from evaporating sticky-note adhesives

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* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Markus Trippelsdorf @ 2011-11-22  8:36 UTC (permalink / raw)
  To: Eric Dumazet
  Cc: Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Christoph Lameter, Pekka Enberg, Matt Mackall,
	netdev@vger.kernel.org, tj, Eric W. Biederman
In-Reply-To: <20111121163459.GA1679@x4.trippels.de>

On 2011.11.21 at 17:34 +0100, Markus Trippelsdorf wrote:
> On 2011.11.21 at 17:10 +0100, Markus Trippelsdorf wrote:
> > On 2011.11.21 at 16:48 +0100, Eric Dumazet wrote:
> > > Le lundi 21 novembre 2011 à 16:36 +0100, Markus Trippelsdorf a écrit :
> > > > On 2011.11.21 at 15:16 +0100, Eric Dumazet wrote:
> > > > > Le lundi 21 novembre 2011 à 14:15 +0100, Markus Trippelsdorf a écrit :
> > > > > 
> > > > > > I've enabled CONFIG_SLUB_DEBUG_ON and this is what happend:
> > > > > > 
> > > > > 
> > > > > Thanks
> > > > > 
> > > > > Please continue to provide more samples.
> > > > > 
> > > > > There is something wrong somewhere, but where exactly, its hard to say.
> > > > 
> > > > New sample. This one points to lib/idr.c:
> > > > 
> > > > =============================================================================
> > > > BUG idr_layer_cache: Poison overwritten
> > > > -----------------------------------------------------------------------------
> > > 
> > > Thanks, could you now add "CONFIG_DEBUG_PAGEALLOC=y" in your config as
> > > well ?
> > 
> > Sure. This one happend with CONFIG_DEBUG_PAGEALLOC=y:
> > 
> > =============================================================================
> > BUG task_struct: Poison overwritten
> > -----------------------------------------------------------------------------
> 
> And sometimes this one that I've reported earlier already:
> 
> (see: http://thread.gmane.org/gmane.linux.kernel/1215023 )
> 
>  ------------[ cut here ]------------
>  WARNING: at fs/sysfs/sysfs.h:195 sysfs_get_inode+0x136/0x140()
>  Hardware name: System Product Name
>  Pid: 1876, comm: slabinfo Not tainted 3.2.0-rc2-00274-g6fe4c6d #72
>  Call Trace:
>  [<ffffffff8106cac5>] warn_slowpath_common+0x75/0xb0
>  [<ffffffff8106cbc5>] warn_slowpath_null+0x15/0x20
>  [<ffffffff81163236>] sysfs_get_inode+0x136/0x140
>  [<ffffffff81164cef>] sysfs_lookup+0x6f/0x110
>  [<ffffffff811173f9>] d_alloc_and_lookup+0x39/0x80
>  [<ffffffff81118774>] do_lookup+0x294/0x3a0
>  [<ffffffff8111798a>] ? inode_permission+0x7a/0xb0
>  [<ffffffff8111a3f7>] do_last.isra.46+0x137/0x7f0
>  [<ffffffff8111ab76>] path_openat+0xc6/0x370
>  [<ffffffff81117606>] ? getname_flags+0x36/0x230
>  [<ffffffff810ec852>] ? handle_mm_fault+0x192/0x290
>  [<ffffffff8111ae5c>] do_filp_open+0x3c/0x90
>  [<ffffffff81127c8c>] ? alloc_fd+0xdc/0x120
>  [<ffffffff8110ce77>] do_sys_open+0xe7/0x1c0
>  [<ffffffff8110cf6b>] sys_open+0x1b/0x20
>  [<ffffffff814ccb7b>] system_call_fastpath+0x16/0x1b
>  ---[ end trace b1377eb8b131d37d ]---

Hm, the "sysfs: use rb-tree" thing hit again during boot. Could this be
the root cause of this all?

I wrote down the following:

RIP : rb_next

Trace:
 sysfs_dir_pos
 sysfs_readdir
 ? sys_ioctl
 vfs_readdir
 sys_getdents

-- 
Markus

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* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Eric Dumazet @ 2011-11-22  8:27 UTC (permalink / raw)
  To: Christoph Lameter
  Cc: Christian Kujau, Benjamin Herrenschmidt, Markus Trippelsdorf,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <1321948113.27077.24.camel@edumazet-laptop>

Le mardi 22 novembre 2011 à 08:48 +0100, Eric Dumazet a écrit :

> For x86, I wonder if our !X86_FEATURE_CX16 support is correct on SMP
> machines.
> 


By the way, I wonder why we still emit this_cpu_cmpxchg16b_emu() code
and calls when compiling a kernel for a cpu implementing cmpxchg16b

(CONFIG_MCORE2=y)



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* ieee802154:  WARNING: at mm/page_alloc.c:2095
From: Sasha Levin @ 2011-11-22  7:53 UTC (permalink / raw)
  To: dbaryshkov, slapin, davem; +Cc: netdev, linux-zigbee-devel, linux-kernel

Hi all,

I got the following warning when trying out ieee802154:

[  157.736372] WARNING: at mm/page_alloc.c:2095 __alloc_pages_nodemask+0x177/0x722()
[  157.737707] Pid: 9100, comm: trinity Not tainted 3.2.0-rc2-sasha-00280-g45a222d #22
[  157.739114] Call Trace:
[  157.739559]  [<ffffffff810fcd7f>] ? __alloc_pages_nodemask+0x177/0x722
[  157.740746]  [<ffffffff81086984>] warn_slowpath_common+0x7b/0x93
[  157.741824]  [<ffffffff81086a47>] warn_slowpath_null+0x15/0x17
[  157.743283]  [<ffffffff810fcd7f>] __alloc_pages_nodemask+0x177/0x722
[  157.744434]  [<ffffffff8112f8a3>] ? __slab_alloc.clone.46+0x42d/0x456
[  157.745598]  [<ffffffff810b1d97>] ? trace_hardirqs_on_caller+0x151/0x197
[  157.747204]  [<ffffffff8112f8ab>] ? __slab_alloc.clone.46+0x435/0x456
[  157.748375]  [<ffffffff810a4875>] ? sched_clock_local+0x12/0x75
[  157.749475]  [<ffffffff81b96dd6>] ? __alloc_skb+0x42/0x14a
[  157.750682]  [<ffffffff810b2c3a>] ? lock_is_held+0x92/0x9d
[  157.751693]  [<ffffffff8112d399>] kmalloc_large_node+0x51/0x83
[  157.752757]  [<ffffffff81131ada>] __kmalloc_node_track_caller+0x29/0x127
[  157.753955]  [<ffffffff81b9449e>] ? sock_alloc_send_pskb+0xbd/0x2d7
[  157.755084]  [<ffffffff81b96e0a>] __alloc_skb+0x76/0x14a
[  157.756055]  [<ffffffff81b9449e>] sock_alloc_send_pskb+0xbd/0x2d7
[  157.757155]  [<ffffffff81b9e6ed>] ? rcu_read_unlock+0x21/0x23
[  157.758206]  [<ffffffff81b946c8>] sock_alloc_send_skb+0x10/0x12
[  157.759292]  [<ffffffff81e18f4c>] dgram_sendmsg+0xa8/0x22c
[  157.760292]  [<ffffffff81e182af>] ieee802154_sock_sendmsg+0xf/0x11
[  157.761376]  [<ffffffff81b8fc6f>] __sock_sendmsg+0x65/0x72
[  157.762388]  [<ffffffff81b908bb>] sock_sendmsg+0xa3/0xbc
[  157.763351]  [<ffffffff810a4875>] ? sched_clock_local+0x12/0x75
[  157.764420]  [<ffffffff8107ecfc>] ? get_parent_ip+0x11/0x41
[  157.765428]  [<ffffffff8107ecfc>] ? get_parent_ip+0x11/0x41
[  157.766439]  [<ffffffff810b2c3a>] ? lock_is_held+0x92/0x9d
[  157.767440]  [<ffffffff81141631>] ? fget_light+0x35/0x9e
[  157.768409]  [<ffffffff810a355f>] ? up_read+0x1e/0x35
[  157.769336]  [<ffffffff81b90479>] ? sockfd_lookup_light+0x1b/0x53
[  157.770434]  [<ffffffff81b91b1d>] sys_sendto+0x12d/0x16f
[  157.771396]  [<ffffffff810b1e8f>] ? trace_hardirqs_off_caller+0xa3/0x10b
[  157.772594]  [<ffffffff81e6fd1d>] ? retint_swapgs+0x13/0x1b
[  157.773599]  [<ffffffff810b1d97>] ? trace_hardirqs_on_caller+0x151/0x197
[  157.774826]  [<ffffffff8161620e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[  157.775989]  [<ffffffff81e705d2>] system_call_fastpath+0x16/0x1b

Please let me know if theres anything I can help with debugging it.

-- 

Sasha.

^ permalink raw reply

* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Markus Trippelsdorf @ 2011-11-22  7:51 UTC (permalink / raw)
  To: Eric Dumazet
  Cc: Christoph Lameter, Christian Kujau, Benjamin Herrenschmidt,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <1321948113.27077.24.camel@edumazet-laptop>

On 2011.11.22 at 08:48 +0100, Eric Dumazet wrote:
> Le lundi 21 novembre 2011 à 21:18 -0600, Christoph Lameter a écrit :
> 
> > Hmmm... That means that c->page points to page not frozen. Per cpu
> > partial pages are frozen until they are reused or until the partial list
> > is flushed.
> > 
> > Does this ever happen on x86 or only on other platforms? In put_cpu_partial() the
> > this_cpu_cmpxchg really needs really to be irq safe. this_cpu_cmpxchg is
> > only preempt safe.
> > 
> > Index: linux-2.6/mm/slub.c
> > ===================================================================
> > --- linux-2.6.orig/mm/slub.c	2011-11-21 21:15:41.575673204 -0600
> > +++ linux-2.6/mm/slub.c	2011-11-21 21:16:33.442336849 -0600
> > @@ -1969,7 +1969,7 @@
> >  		page->pobjects = pobjects;
> >  		page->next = oldpage;
> > 
> > -	} while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
> > +	} while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
> >  	stat(s, CPU_PARTIAL_FREE);
> >  	return pobjects;
> >  }
> > 
> 
> For x86, I wonder if our !X86_FEATURE_CX16 support is correct on SMP
> machines.
> 
> this_cpu_cmpxchg16b_emu() claims to be IRQ safe, but may be buggy...
> 
> Could we have somewhere a NMI handler calling kmalloc() ?
> 
> Please Markus send us :
> 
> cat /proc/cpuinfo
 processor       : 0
 vendor_id       : AuthenticAMD
 cpu family      : 16
 model           : 4
 model name      : AMD Phenom(tm) II X4 955 Processor
 stepping        : 2
 microcode       : 0x10000c6
 cpu MHz         : 800.000
 cache size      : 512 KB
 physical id     : 0
 siblings        : 4
 core id         : 0
 cpu cores       : 4
 apicid          : 0
 initial apicid  : 0
 fpu             : yes
 fpu_exception   : yes
 cpuid level     : 5
 wp              : yes
 flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
 mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
 fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl
 nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm
 extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit
 wdt npt lbrv svm_lock nrip_save
 bogomips        : 6420.59
 TLB size        : 1024 4K pages
 clflush size    : 64
 cache_alignment : 64
 address sizes   : 48 bits physical, 48 bits virtual
 power management: ts ttp tm stc 100mhzsteps hwpstate
(*4)

-- 
Markus

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* Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
From: Eric Dumazet @ 2011-11-22  7:48 UTC (permalink / raw)
  To: Christoph Lameter
  Cc: Christian Kujau, Benjamin Herrenschmidt, Markus Trippelsdorf,
	Alex,Shi, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Pekka Enberg, Matt Mackall, netdev@vger.kernel.org, Tejun Heo
In-Reply-To: <alpine.DEB.2.00.1111212105330.19606@router.home>

Le lundi 21 novembre 2011 à 21:18 -0600, Christoph Lameter a écrit :

> Hmmm... That means that c->page points to page not frozen. Per cpu
> partial pages are frozen until they are reused or until the partial list
> is flushed.
> 
> Does this ever happen on x86 or only on other platforms? In put_cpu_partial() the
> this_cpu_cmpxchg really needs really to be irq safe. this_cpu_cmpxchg is
> only preempt safe.
> 
> Index: linux-2.6/mm/slub.c
> ===================================================================
> --- linux-2.6.orig/mm/slub.c	2011-11-21 21:15:41.575673204 -0600
> +++ linux-2.6/mm/slub.c	2011-11-21 21:16:33.442336849 -0600
> @@ -1969,7 +1969,7 @@
>  		page->pobjects = pobjects;
>  		page->next = oldpage;
> 
> -	} while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
> +	} while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
>  	stat(s, CPU_PARTIAL_FREE);
>  	return pobjects;
>  }
> 

For x86, I wonder if our !X86_FEATURE_CX16 support is correct on SMP
machines.

this_cpu_cmpxchg16b_emu() claims to be IRQ safe, but may be buggy...

Could we have somewhere a NMI handler calling kmalloc() ?

Please Markus send us :

cat /proc/cpuinfo



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* Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1
From: Andy Lutomirski @ 2011-11-22  7:16 UTC (permalink / raw)
  To: Linus Torvalds
  Cc: Rafael J. Wysocki, Linux Kernel Mailing List, Maciej Rutecki,
	Florian Mickler, Andrew Morton, Kernel Testers List,
	Network Development, Linux ACPI, Linux PM List, Linux SCSI List,
	Linux Wireless List, DRI
In-Reply-To: <CALCETrUpXrsjBLZsZU3u+y7KCDO0LW55QoBQkBqN_BPFZHsrkw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On Mon, Nov 21, 2011 at 2:34 PM, Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org> wrote:
> On Mon, Nov 21, 2011 at 2:11 PM, Linus Torvalds
> <torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> wrote:
>> On Mon, Nov 21, 2011 at 1:49 PM, Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> wrote:
>>>
>>> Subject    : [3.1 REGRESSION] Commit 5cec93c216db77c45f7ce970d46283bcb1933884 breaks the Chromium seccomp sandbox
>>> Submitter  : Nix <nix-dKoSMcxRz+Te9xe1eoZjHA@public.gmane.org>
>>> Date       : 2011-11-14 0:40
>>> Message-ID : 8762inleno.fsf-AdTWujXS48Mg67Zj9sPl2A@public.gmane.org
>>> References : http://marc.info/?l=linux-kernel&m=132123396226377&w=2
>>

This is apparently fixed in seccompsandbox.  See:

https://code.google.com/p/seccompsandbox/issues/detail?id=17
https://code.google.com/p/seccompsandbox/source/detail?r=178

Unless someone objects, I'll consider this to not be a kernel
regression worth fixing.

--Andy

^ permalink raw reply

* Re: drivers/net: Kconfig & Makefile cleanup
From: Ben Hutchings @ 2011-11-22  6:51 UTC (permalink / raw)
  To: Jeff Kirsher; +Cc: netdev
In-Reply-To: <1321944512.2839.219.camel@deadeye>

[-- Attachment #1: Type: text/plain, Size: 455 bytes --]

You wrote that (some time ago now):
> As a side cleanup, found that the arcnet, token ring, and PHY
> Kconfig options were a tri-state option and should have been
> a bool option.

How did you decide that?  This seems to be correct for TR, but ARCNET
and PHYLIB each select some support code that can be built as a module
(and which has been, in Debian).

Ben.

-- 
Ben Hutchings
Teamwork is essential - it allows you to blame someone else.

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 828 bytes --]

^ permalink raw reply

* Re: drivers/net: Kconfig & Makefile cleanup
From: Ben Hutchings @ 2011-11-22  6:49 UTC (permalink / raw)
  Cc: netdev

[-- Attachment #1: Type: text/plain, Size: 457 bytes --]

You wrote that (some time ago now):
> As a side cleanup, found that the arcnet, token ring, and PHY
> Kconfig options were a tri-state option and should have been
> a bool option.

How did you decide that?  This seems to be correct for TR, but ARCNET
and PHYLIB each select some support code that can be built as a module
(and which has been, in Debian).

Ben.

-- 
Ben Hutchings
Teamwork is essential - it allows you to blame someone else.


[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 828 bytes --]

^ permalink raw reply

* Re: drivers/net: Kconfig & Makefile cleanup
From: Ben Hutchings @ 2011-11-22  6:48 UTC (permalink / raw)
  Cc: netdev

[-- Attachment #1: Type: text/plain, Size: 457 bytes --]

You wrote that (some time ago now):
> As a side cleanup, found that the arcnet, token ring, and PHY
> Kconfig options were a tri-state option and should have been
> a bool option.

How did you decide that?  This seems to be correct for TR, but ARCNET
and PHYLIB each select some support code that can be built as a module
(and which has been, in Debian).

Ben.

-- 
Ben Hutchings
Teamwork is essential - it allows you to blame someone else.


[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 828 bytes --]

^ permalink raw reply

* Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1
From: Andrew Morton @ 2011-11-22  5:59 UTC (permalink / raw)
  To: Srivatsa S. Bhat
  Cc: Andrea Arcangeli, Linux SCSI List, Linux ACPI,
	Network Development, Linux Wireless List,
	Linux Kernel Mailing List, DRI, Florian Mickler, Linux PM List,
	Kernel Testers List, Linus Torvalds, Maciej Rutecki
In-Reply-To: <4ECB37E4.6020204@linux.vnet.ibm.com>

On Tue, 22 Nov 2011 11:19:24 +0530 "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> wrote:

> > Subject    : khugepaged blocks suspend2ram (3.2.0-rc1-00252-g8f042aa)
> > Submitter  : Sergei Trofimovich <slyich@gmail.com>
> > Date       : 2011-11-12 10:48
> > Message-ID : 20111112104859.7744b282@sf.home
> > References : https://lkml.org/lkml/2011/11/12/11
> > 
> 
> Andrea's patch already fixes this issue, which was reported first by
> Jiri Slaby. https://lkml.org/lkml/2011/11/11/93
> I remember Andrew Morton taking this patch in his -mm tree. But it is
> not in mainline yet. So can we consider this closed or not?

grr, nothing in that patch's changelog indicates that it fixed a
regression nor that it fixed an infinite blockage of suspend.

I moved it to my 3.2 queue, thanks.

^ permalink raw reply

* [PATCH net-next] atm: use SKB_TRUESIZE() in atm_guess_pdu2truesize()
From: Eric Dumazet @ 2011-11-22  5:51 UTC (permalink / raw)
  To: David Miller; +Cc: netdev

SKB_TRUESIZE() provides a better approximation of expected skb truesize.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
---
 include/linux/atmdev.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index 49a83ca..43ea1b2 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -452,7 +452,7 @@ void atm_dev_release_vccs(struct atm_dev *dev);
 
 static inline int atm_guess_pdu2truesize(int size)
 {
-	return SKB_DATA_ALIGN(size) + sizeof(struct skb_shared_info);
+	return SKB_TRUESIZE(size);
 }
 
 

^ permalink raw reply related

* Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1
From: Srivatsa S. Bhat @ 2011-11-22  5:49 UTC (permalink / raw)
  To: Rafael J. Wysocki
  Cc: Linux Kernel Mailing List, Maciej Rutecki, Florian Mickler,
	Andrew Morton, Linus Torvalds, Kernel Testers List,
	Network Development, Linux ACPI, Linux PM List, Linux SCSI List,
	Linux Wireless List, DRI
In-Reply-To: <201111212249.31196.rjw@sisk.pl>

On 11/22/2011 03:19 AM, Rafael J. Wysocki wrote:
> This message contains a list of some regressions from 3.0 and 3.1
> for which there are no fixes in the mainline known to the tracking team.
> If any of them have been fixed already, please let us know.
> 
> If you know of any other unresolved regressions from 3.0 and 3.1, please let us
> know either and we'll add them to the list.  Also, please let us know if any of
> the entries below are invalid.
> 
> The entries below are simplified and the statistics are not present due to the
> continuing Bugzilla outage.
> 
> Subject    : iwlagn is getting very shaky
> Submitter  : Norbert Preining <preining@logic.at>
> Date       : 2011-10-19 6:01
> Message-ID : 20111019060108.GA11588@gamma.logic.tuwien.ac.at
> References : http://marc.info/?l=linux-kernel&m=131914553920614&w=2
> 
> Subject    : Regression: "irqpoll" hasn't been working for me since March 16 IRQ
> Submitter  : Edward Donovan <edward.donovan@numble.net>
> Date       : 2011-10-19 22:09
> Message-ID : CADdbW+HXdCPfJu2RTF6zz+ujCmiu_dmZwL2iScuF53p=AaZ1Uw@mail.gmail.com
> References : http://marc.info/?l=linux-kernel&m=131914554220679&w=2
> 
> Subject    : Regression in 3.1 causes Xen to use wrong idle routine
> Submitter  : Stefan Bader <stefan.bader@canonical.com>
> Date       : 2011-10-26 10:24
> Message-ID : 4EA7DFD1.9060608@canonical.com
> References : http://marc.info/?l=linux-acpi&m=131962467924564&w=2
> 
> Subject    : 3.1+ iwlwifi lockup
> Submitter  : Dave Jones <davej@redhat.com>
> Date       : 2011-10-31 14:34
> Message-ID : 20111031143408.GA17152@redhat.com
> References : http://marc.info/?l=linux-kernel&m=132007169420160&w=2
> 
> Subject    : hugetlb oops on 3.1.0-rc8-devel
> Submitter  : Andy Lutomirski <luto@amacapital.net>
> Date       : 2011-11-01 22:20
> Message-ID : CALCETrW1mpVCz2tO5roaz1r6vnno+srHR-dHA6_pkRi2qiCfdw@mail.gmail.com
> References : http://marc.info/?l=linux-kernel&m=132018604426692&w=2
> 
> Subject    : Simultaneous cat and external keyboard input causing kernel panic
> Submitter  : Timo Jyrinki <timo.jyrinki@gmail.com>
> Date       : 2011-11-03 12:14
> Message-ID : CAJtFfxmovJHspHHKbvBVc4pw+u5mjGmUejCXEzdV+GqE=jVSOQ@mail.gmail.com
> References : http://marc.info/?l=linux-kernel&m=132032253903074&w=2
> 
> Subject    : Linus GIT - INFO: possible circular locking dependency detected
> Submitter  : Miles Lane <miles.lane@gmail.com>
> Date       : 2011-11-03 15:57
> Message-ID : CAHFgRy8S0xLfhZxTUOEH5A0PL_Fb79-0-gmbQ=9h2D-xMqt1hA@mail.gmail.com
> References : http://marc.info/?l=linux-kernel&m=132033587908426&w=2
> 
> Subject    : lockdep warning after aa6afca5bcab: "proc: fix races against execve() of /proc/PID/fd**"
> Submitter  : Ari Savolainen <ari.m.savolainen@gmail.com>
> Date       : 2011-11-08 3:47
> Message-ID : CAEbykaXYZEFhTgWMm2AfaWQ2SaXYuO_ypTnw+6AVWScOYSCuuw@mail.gmail.com
> References : http://marc.info/?l=linux-kernel&m=132072413125099&w=2
> 
> Subject    : DMA-API check_sync errors with 3.2
> Submitter  : Josh Boyer <jwboyer@redhat.com>
> Date       : 2011-11-08 17:31
> Message-ID : 20111108173153.GE14216@zod.bos.redhat.com
> References : http://marc.info/?l=linux-kernel&m=132077357608797&w=2
> 
> Subject    : [3.1-rc8 REGRESSION] sky2 hangs machine on turning off or suspending
> Submitter  : Rafał Miłecki <zajec5@gmail.com>
> Date       : 2011-11-09 11:46
> Message-ID : CACna6ryTdLcWVYgHu=_mRFga1sFivpE_DyZOY-HMmKggkWAJAw@mail.gmail.com
> References : http://marc.info/?l=linux-netdev&m=132083922228088&w=4
> 
> Subject    : 3.2-rc1 doesn't boot on dual socket opteron without swap
> Submitter  : Niklas Schnelle <niklas@komani.de>
> Date       : 2011-11-10 20:09
> Message-ID : 1320955769.1718.8.camel@jupiter
> References : http://marc.info/?l=linux-kernel&m=132095583501767&w=2
> 
> Subject    : Sparc-32 doesn't work in 3.1.
> Submitter  : Rob Landley <rob@landley.net>
> Date       : 2011-11-12 11:22
> Message-ID : 4EBEAB5A.5020809@landley.net
> References : http://www.spinics.net/lists/kernel/msg1260383.html
> 
> Subject    : khugepaged blocks suspend2ram (3.2.0-rc1-00252-g8f042aa)
> Submitter  : Sergei Trofimovich <slyich@gmail.com>
> Date       : 2011-11-12 10:48
> Message-ID : 20111112104859.7744b282@sf.home
> References : https://lkml.org/lkml/2011/11/12/11
> 

Andrea's patch already fixes this issue, which was reported first by
Jiri Slaby. https://lkml.org/lkml/2011/11/11/93
I remember Andrew Morton taking this patch in his -mm tree. But it is
not in mainline yet. So can we consider this closed or not?

Thanks,
Srivatsa S. Bhat

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^ permalink raw reply

* Re: Get TOS from IP header
From: Eric Dumazet @ 2011-11-22  5:31 UTC (permalink / raw)
  To: Naveen B N (nbn); +Cc: netdev
In-Reply-To: <A2354B6A9F807641B21EEABD666ECEEA01F7DDEC@XMB-BGL-416.cisco.com>

Le mardi 22 novembre 2011 à 07:06 +0530, Naveen B N (nbn) a écrit :
> Hi All,
> 
> I want  to get the TOS field content from IP header at 
> my application which is using SCTP protocol.
> I know that it can be done by Using RAW socket but 
> There is a over head of implementing the sctp at the 
> Application layer . 
> Is there a better way of getting a TOS field filled
> Which we received from IP header.
> 
> I taught of adding code in kernel to recognize a socket option at the kernel,
> If this option is set just and get TOS contents in receive .
> 
> Please let me know if this is the way to go about it or is there 
> A better way to achieve the same .
> 

I believe SCTP is not yet described in "man 7 ip", but since its
obviously an IP protocol, all things described in this man page should
work.

       IP_RECVTOS (since Linux 2.2)
              If enabled the IP_TOS ancillary message is passed with  incoming  packets.
              It contains a byte which specifies the Type of Service/Precedence field of
              the packet header.  Expects a boolean integer flag.

^ permalink raw reply

* Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1
From: Ari Savolainen @ 2011-11-22  5:27 UTC (permalink / raw)
  To: Linus Torvalds, Rafael J. Wysocki
  Cc: Linux Kernel Mailing List, Maciej Rutecki, Florian Mickler,
	Andrew Morton, Kernel Testers List, Network Development,
	Linux ACPI, Linux PM List, Linux SCSI List, Linux Wireless List,
	DRI
In-Reply-To: <CA+55aFyceMKgS-YRv=r=FrHQ1P9=z7=2PC5gvZcCHoYKnzn_Aw@mail.gmail.com>

2011/11/22 Linus Torvalds <torvalds@linux-foundation.org>:
> On Mon, Nov 21, 2011 at 1:49 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
>>
>> Subject    : lockdep warning after aa6afca5bcab: "proc: fix races against execve() of /proc/PID/fd**"
>> Submitter  : Ari Savolainen <ari.m.savolainen@gmail.com>
>> Date       : 2011-11-08 3:47
>> Message-ID : CAEbykaXYZEFhTgWMm2AfaWQ2SaXYuO_ypTnw+6AVWScOYSCuuw@mail.gmail.com
>> References : http://marc.info/?l=linux-kernel&m=132072413125099&w=2
>
> Commit aa6afca5bcab was reverted by commit 5e442a493fc5, so this one
> is presumably stale.
>
>                      Linus

Yes, this went away after the reversion.

Ari

^ permalink raw reply


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