From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "Alex,Shi" <alex.shi@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Christoph Lameter <cl@linux-foundation.org>,
Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
tj@kernel.org
Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
Date: Mon, 21 Nov 2011 17:10:36 +0100 [thread overview]
Message-ID: <20111121161036.GA1679@x4.trippels.de> (raw)
In-Reply-To: <1321890510.10470.11.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>
On 2011.11.21 at 16:48 +0100, Eric Dumazet wrote:
> Le lundi 21 novembre 2011 a 16:36 +0100, Markus Trippelsdorf a ecrit :
> > On 2011.11.21 at 15:16 +0100, Eric Dumazet wrote:
> > > Le lundi 21 novembre 2011 a 14:15 +0100, Markus Trippelsdorf a ecrit :
> > >
> > > > 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:
> >
> > [drm] Initialized drm 1.1.0 20060810
> > [drm] radeon defaulting to kernel modesetting.
> > [drm] radeon kernel modesetting enabled.
> > radeon 0000:01:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
> > radeon 0000:01:05.0: setting latency timer to 64
> > [drm] initializing kernel modesetting (RS780 0x1002:0x9614 0x1043:0x834D).
> > [drm] register mmio base: 0xFBEE0000
> > [drm] register mmio size: 65536
> > ATOM BIOS: 113
> > radeon 0000:01:05.0: VRAM: 128M 0x00000000C0000000 - 0x00000000C7FFFFFF (128M used)
> > radeon 0000:01:05.0: GTT: 512M 0x00000000A0000000 - 0x00000000BFFFFFFF
> > [drm] Detected VRAM RAM=128M, BAR=128M
> > [drm] RAM width 32bits DDR
> > [TTM] Zone kernel: Available graphics memory: 4083428 kiB.
> > [TTM] Zone dma32: Available graphics memory: 2097152 kiB.
> > [TTM] Initializing pool allocator.
> > [drm] radeon: 128M of VRAM memory ready
> > [drm] radeon: 512M of GTT memory ready.
> > [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
> > [drm] Driver supports precise vblank timestamp query.
> > [drm] radeon: irq initialized.
> > [drm] GART: num cpu pages 131072, num gpu pages 131072
> > [drm] Loading RS780 Microcode
> > [drm] PCIE GART of 512M enabled (table at 0x00000000C0040000).
> > radeon 0000:01:05.0: WB enabled
> > [drm] ring test succeeded in 1 usecs
> > [drm] radeon: ib pool ready.
> > [drm] ib test succeeded in 0 usecs
> > =============================================================================
> > 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:
[drm] Initialized radeon 2.11.0 20080528 for 0000:01:05.0 on minor 0
loop: module loaded
ahci 0000:00:11.0: version 3.0
ahci 0000:00:11.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
ahci 0000:00:11.0: AHCI 0001.0100 32 slots 6 ports 3 Gbps 0x3f impl SATA mode
ahci 0000:00:11.0: flags: 64bit ncq sntf ilck pm led clo pmp pio slum part ccc
scsi0 : ahci
scsi1 : ahci
=============================================================================
BUG task_struct: Poison overwritten
-----------------------------------------------------------------------------
INFO: 0xffff880215c43800-0xffff880215c43803. First byte 0x0 instead of 0x6b
INFO: Allocated in copy_process+0xc4/0xf60 age=168 cpu=1 pid=5
__slab_alloc.constprop.70+0x1a4/0x1e0
kmem_cache_alloc+0x126/0x160
copy_process+0xc4/0xf60
do_fork+0x100/0x2b0
kernel_thread+0x6c/0x70
__call_usermodehelper+0x31/0xa0
process_one_work+0x11a/0x430
worker_thread+0x126/0x2d0
kthread+0x87/0x90
kernel_thread_helper+0x4/0x10
INFO: Freed in free_task+0x3e/0x50 age=156 cpu=2 pid=13
__slab_free+0x33/0x2d0
kmem_cache_free+0x104/0x120
free_task+0x3e/0x50
__put_task_struct+0xb0/0x110
delayed_put_task_struct+0x3b/0xa0
__rcu_process_callbacks+0x12a/0x350
rcu_process_callbacks+0x62/0x140
__do_softirq+0xa8/0x200
run_ksoftirqd+0x107/0x210
kthread+0x87/0x90
kernel_thread_helper+0x4/0x10
INFO: Slab 0xffffea0008571000 objects=17 used=17 fp=0x (null) flags=0x4000000000004080
INFO: Object 0xffff880215c432c0 @offset=12992 fp=0xffff880215c41d00
Bytes b4 ffff880215c432b0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
Object ffff880215c432c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
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Object ffff880215c437c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c437d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c437e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c437f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c43800: 00 00 00 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ....kkkkkkkkkkkk
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Object ffff880215c43840: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c43850: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c43860: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c43870: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c43880: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c43890: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
Object ffff880215c438a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
Redzone ffff880215c438b0: bb bb bb bb bb bb bb bb ........
Padding ffff880215c439f0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
Pid: 5, comm: kworker/u:0 Not tainted 3.2.0-rc2-00274-g6fe4c6d #72
Call Trace:
[<ffffffff81101ca8>] ? print_section+0x38/0x40
[<ffffffff811021a3>] print_trailer+0xe3/0x150
[<ffffffff811023a0>] check_bytes_and_report+0xe0/0x100
[<ffffffff81103196>] check_object+0x1c6/0x240
[<ffffffff8106b034>] ? copy_process+0xc4/0xf60
[<ffffffff814c5bb3>] alloc_debug_processing+0x62/0xe4
[<ffffffff814c6461>] __slab_alloc.constprop.70+0x1a4/0x1e0
[<ffffffff8106b034>] ? copy_process+0xc4/0xf60
[<ffffffff814ca12a>] ? schedule+0x3a/0x50
[<ffffffff81104d66>] kmem_cache_alloc+0x126/0x160
[<ffffffff8106b034>] ? copy_process+0xc4/0xf60
[<ffffffff81065f18>] ? enqueue_task_fair+0xf8/0x140
[<ffffffff8106b034>] copy_process+0xc4/0xf60
[<ffffffff8106c000>] do_fork+0x100/0x2b0
[<ffffffff810920fd>] ? sched_clock_local+0x1d/0x90
[<ffffffff81044dec>] kernel_thread+0x6c/0x70
[<ffffffff81084430>] ? proc_cap_handler+0x180/0x180
[<ffffffff814cdd30>] ? gs_change+0xb/0xb
[<ffffffff810845a1>] __call_usermodehelper+0x31/0xa0
[<ffffffff810869ba>] process_one_work+0x11a/0x430
[<ffffffff81084570>] ? call_usermodehelper_freeinfo+0x30/0x30
[<ffffffff81087026>] worker_thread+0x126/0x2d0
[<ffffffff81086f00>] ? rescuer_thread+0x1f0/0x1f0
[<ffffffff8108bb87>] kthread+0x87/0x90
[<ffffffff814cdd34>] kernel_thread_helper+0x4/0x10
[<ffffffff8108bb00>] ? kthread_flush_work_fn+0x10/0x10
[<ffffffff814cdd30>] ? gs_change+0xb/0xb
FIX task_struct: Restoring 0xffff880215c43800-0xffff880215c43803=0x6b
FIX task_struct: Marking all objects used
...
debug: unmapping init memory ffffffff8187d000..ffffffff818ea000
Write protecting the kernel read-only data: 8192k
debug: unmapping init memory ffff8800014d1000..ffff880001600000
debug: unmapping init memory ffff8800017e0000..ffff880001800000
...
slabinfo -v gives:
SLUB: task_struct 10 slabs counted but counter=11
--
Markus
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next prev parent reply other threads:[~2011-11-21 16:10 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-18 7:25 Markus Trippelsdorf
2011-11-18 7:55 ` Markus Trippelsdorf
2011-11-18 8:43 ` Alex,Shi
2011-11-18 8:54 ` Markus Trippelsdorf
2011-11-18 8:57 ` Markus Trippelsdorf
2011-11-18 12:02 ` Markus Trippelsdorf
2011-11-21 0:44 ` Alex,Shi
2011-11-21 7:29 ` Markus Trippelsdorf
2011-11-21 8:05 ` Markus Trippelsdorf
2011-11-21 8:24 ` Markus Trippelsdorf
2011-11-21 8:56 ` Eric Dumazet
2011-11-21 9:16 ` Eric Dumazet
2011-11-21 13:15 ` Markus Trippelsdorf
2011-11-21 14:16 ` Eric Dumazet
2011-11-21 14:21 ` Markus Trippelsdorf
2011-11-21 15:36 ` Markus Trippelsdorf
2011-11-21 15:48 ` Eric Dumazet
2011-11-21 16:10 ` Markus Trippelsdorf [this message]
2011-11-21 16:34 ` Markus Trippelsdorf
2011-11-22 8:36 ` Markus Trippelsdorf
2011-12-19 3:21 ` Eric W. Biederman
2011-12-19 9:19 ` Markus Trippelsdorf
2011-12-19 9:06 ` Eric W. Biederman
2011-11-21 16:52 ` Eric Dumazet
2011-11-21 17:15 ` Eric Dumazet
2011-11-21 17:35 ` Markus Trippelsdorf
2011-11-21 18:39 ` Eric Dumazet
2011-11-21 18:52 ` Markus Trippelsdorf
2011-11-21 19:51 ` Markus Trippelsdorf
2011-11-21 20:27 ` Benjamin Herrenschmidt
2011-11-21 21:30 ` Pekka Enberg
2011-11-21 21:43 ` Christoph Lameter
2011-11-22 0:21 ` Christian Kujau
2011-11-22 0:42 ` Christian Kujau
2011-11-22 2:17 ` Benjamin Herrenschmidt
2011-11-22 8:37 ` Christian Kujau
2011-11-22 3:18 ` Christoph Lameter
2011-11-22 7:48 ` Eric Dumazet
2011-11-22 7:51 ` Markus Trippelsdorf
2011-11-22 8:27 ` Eric Dumazet
2011-11-23 7:13 ` Markus Trippelsdorf
2011-11-23 7:20 ` Eric Dumazet
2011-11-22 8:39 ` Christian Kujau
2011-11-22 22:16 ` Benjamin Herrenschmidt
2011-11-22 22:31 ` Eric Dumazet
2011-11-22 22:32 ` Christoph Lameter
2011-11-22 21:58 ` Benjamin Herrenschmidt
2011-11-22 23:12 ` Christian Kujau
2011-11-23 0:18 ` Benjamin Herrenschmidt
2011-11-23 1:22 ` Christian Kujau
2011-11-23 1:43 ` Benjamin Herrenschmidt
2011-11-23 5:51 ` Christian Kujau
2011-11-23 6:59 ` Pekka Enberg
2011-11-23 15:14 ` slub: use irqsafe_cpu_cmpxchg for put_cpu_partial Christoph Lameter
2011-11-23 16:04 ` Eric Dumazet
2011-11-23 18:33 ` Christian Kujau
2011-11-24 6:45 ` Pekka Enberg
2011-11-23 23:15 ` David Rientjes
2011-11-22 8:45 ` WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 Markus Trippelsdorf
2011-11-22 9:25 ` Eric Dumazet
2011-11-22 9:27 ` Eric Dumazet
2011-11-22 9:38 ` Eric Dumazet
2011-11-22 9:46 ` Eric Dumazet
2011-11-22 14:46 ` Christoph Lameter
2011-11-22 14:52 ` Eric Dumazet
2011-11-22 15:02 ` Christoph Lameter
2011-11-22 15:07 ` Christoph Lameter
2011-11-22 16:20 ` Christoph Lameter
2011-11-22 16:32 ` Eric Dumazet
2011-11-22 16:36 ` Christoph Lameter
2011-11-22 16:41 ` Christoph Lameter
2011-11-22 16:53 ` slub: Lockout validation scans during freeing of object Christoph Lameter
2011-11-22 17:21 ` Eric Dumazet
2011-11-22 17:40 ` Christoph Lameter
2011-11-22 18:55 ` Markus Trippelsdorf
2011-11-22 19:20 ` Christoph Lameter
2011-11-22 19:32 ` Markus Trippelsdorf
2011-11-22 19:46 ` Christoph Lameter
2011-11-22 17:59 ` Christoph Lameter
2011-11-22 11:21 ` WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 Markus Trippelsdorf
2011-11-22 14:50 ` Christoph Lameter
2011-11-22 14:44 ` Christoph Lameter
2011-11-21 15:51 ` Markus Trippelsdorf
2011-11-23 16:03 ` Markus Trippelsdorf
2011-11-23 16:06 ` Christoph Lameter
2011-11-24 8:50 ` Markus Trippelsdorf
2011-12-01 8:44 ` Markus Trippelsdorf
2011-12-01 8:53 ` Pekka Enberg
2011-12-02 19:43 ` Jerome Glisse
2011-12-02 20:06 ` Markus Trippelsdorf
2011-12-02 20:48 ` Markus Trippelsdorf
2011-12-07 14:32 ` Robert Richter
2011-12-07 14:39 ` Markus Trippelsdorf
2011-12-02 23:04 ` Jerome Glisse
2011-12-03 9:28 ` Markus Trippelsdorf
2011-12-03 12:20 ` Dave Airlie
2011-12-03 12:29 ` Markus Trippelsdorf
2011-12-03 19:31 ` Jerome Glisse
2011-12-03 19:32 ` Jerome Glisse
2011-12-04 1:02 ` Markus Trippelsdorf
2011-12-04 17:32 ` Jerome Glisse
2011-12-05 17:10 ` Jerome Glisse
2011-12-05 18:15 ` Markus Trippelsdorf
2011-12-05 18:43 ` Jerome Glisse
2011-12-05 19:11 ` Jerome Glisse
2011-12-05 19:27 ` Markus Trippelsdorf
2011-12-05 20:10 ` Pekka Enberg
2011-12-05 20:20 ` Jerome Glisse
2011-12-05 10:44 ` David Laight
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