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SubjectRe: kernel BUG at mm/slub.c:3409, 3.8.0-rc7
The problem is that the subsystem attempted to call kfree with a pointer
that was not obtained via a slab allocation.

On Sat, 16 Feb 2013, Denys Fedoryshchenko wrote:

> Hi
>
> Worked for a while on 3.8.0-rc7, generally it is fine, then suddenly laptop
> stopped responding to keyboard and mouse.
> Sure it can be memory corruption by some other module, but maybe not. Worth to
> report i guess.
> After reboot checked logs and found this:
>
> Feb 16 00:40:17 localhost kernel: [23260.079253] ------------[ cut here
> ]------------
> Feb 16 00:40:17 localhost kernel: [23260.079257] kernel BUG at mm/slub.c:3409!
> Feb 16 00:40:17 localhost kernel: [23260.079259] invalid opcode: 0000 [#1] SMP
> Feb 16 00:40:17 localhost kernel: [23260.079262] Modules linked in:
> ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4
> xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle iptable_filter
> ip_tables tun bridge stp llc nouveau snd_hda_codec_hdmi coretemp kvm_intel
> snd_hda_codec_realtek uvcvideo videobuf2_vmalloc snd_hda_intel
> videobuf2_memops videobuf2_core kvm mxm_wmi wmi videodev hwmon ttm
> snd_hda_codec drm_kms_helper rtl8192se rtlwifi nvidiafb mei lpc_ich mfd_core
> i2c_i801 snd_hwdep
> Feb 16 00:40:17 localhost kernel: [23260.079295] CPU 0
> Feb 16 00:40:17 localhost kernel: [23260.079298] Pid: 3811, comm: kworker/0:1
> Tainted: G W 3.8.0-rc7-lap #1 TOSHIBA Satellite A665/NWQAA
> Feb 16 00:40:17 localhost kernel: [23260.079300] RIP:
> 0010:[<ffffffff810d9ed1>] [<ffffffff810d9ed1>] kfree+0x31/0xb1
> Feb 16 00:40:17 localhost kernel: [23260.079306] RSP: 0018:ffff88012b02fd28
> EFLAGS: 00010246
> Feb 16 00:40:17 localhost kernel: [23260.079308] RAX: 8000000000000000 RBX:
> ffff8801029fcb40 RCX: 000000000079b6df
> Feb 16 00:40:17 localhost kernel: [23260.079310] RDX: 8000000000000000 RSI:
> ffff88017d79f480 RDI: ffff8801029fcb40
> Feb 16 00:40:17 localhost kernel: [23260.079312] RBP: ffff88012b02fd48 R08:
> 0000000000014b60 R09: 0000000000000001
> Feb 16 00:40:17 localhost kernel: [23260.079313] R10: ffff880100000000 R11:
> 0000000000000001 R12: ffffea00040a7f00
> Feb 16 00:40:17 localhost kernel: [23260.079315] R13: ffff8801bfc15e00 R14:
> ffff8801bfc0d380 R15: ffff88012b02fda8
> Feb 16 00:40:17 localhost kernel: [23260.079317] FS: 0000000000000000(0000)
> GS:ffff8801bfc00000(0000) knlGS:0000000000000000
> Feb 16 00:40:17 localhost kernel: [23260.079319] CS: 0010 DS: 0000 ES: 0000
> CR0: 000000008005003b
> Feb 16 00:40:17 localhost kernel: [23260.079321] CR2: 000035ffe6f63008 CR3:
> 0000000001a0c000 CR4: 00000000000007f0
> Feb 16 00:40:17 localhost kernel: [23260.079322] DR0: 0000000000000000 DR1:
> 0000000000000000 DR2: 0000000000000000
> Feb 16 00:40:17 localhost kernel: [23260.079324] DR3: 0000000000000000 DR6:
> 00000000ffff0ff0 DR7: 0000000000000400
> Feb 16 00:40:17 localhost kernel: [23260.079326] Process kworker/0:1 (pid:
> 3811, threadinfo ffff88012b02e000, task ffff8801b0300000)
> Feb 16 00:40:17 localhost kernel: [23260.079327] Stack:
> Feb 16 00:40:17 localhost kernel: [23260.079329] ffff8801019fcb50
> ffff8801029fcb40 ffff8801bfc15e00 ffff8801bfc0d380
> Feb 16 00:40:17 localhost kernel: [23260.079332] ffff88012b02fd68
> ffffffff8125fe88 ffff880165c0a600 ffff8801019fcb50
> Feb 16 00:40:17 localhost kernel: [23260.079336] ffff88012b02fdf8
> ffffffff810441f0 ffffffff81044183 ffff88012b02ffd8
> Feb 16 00:40:17 localhost kernel: [23260.079339] Call Trace:
> Feb 16 00:40:17 localhost kernel: [23260.079344] [<ffffffff8125fe88>]
> acpi_os_execute_deferred+0x2a/0x2f
> Feb 16 00:40:17 localhost kernel: [23260.079348] [<ffffffff810441f0>]
> process_one_work+0x1d8/0x2eb
> Feb 16 00:40:17 localhost kernel: [23260.079351] [<ffffffff81044183>] ?
> process_one_work+0x16b/0x2eb
> Feb 16 00:40:17 localhost kernel: [23260.079354] [<ffffffff8125fe5e>] ?
> acpi_os_wait_events_complete+0x1e/0x1e
> Feb 16 00:40:17 localhost kernel: [23260.079357] [<ffffffff8104603d>]
> worker_thread+0x13e/0x1c1
> Feb 16 00:40:17 localhost kernel: [23260.079360] [<ffffffff81045eff>] ?
> manage_workers+0x250/0x250
> Feb 16 00:40:17 localhost kernel: [23260.079363] [<ffffffff81049d14>]
> kthread+0xa5/0xad
> Feb 16 00:40:17 localhost kernel: [23260.079366] [<ffffffff81049c6f>] ?
> __init_kthread_worker+0x56/0x56
> Feb 16 00:40:17 localhost kernel: [23260.079370] [<ffffffff8153eeec>]
> ret_from_fork+0x7c/0xb0
> Feb 16 00:40:17 localhost kernel: [23260.079373] [<ffffffff81049c6f>] ?
> __init_kthread_worker+0x56/0x56
> Feb 16 00:40:17 localhost kernel: [23260.079374] Code: 89 e5 41 56 41 55 41 54
> 53 48 89 fb 0f 86 90 00 00 00 e8 74 e1 ff ff 49 89 c4 48 8b 00 a8 80 75 20 49
> f7 04 24 00 c0 00 00 75 02 <0f> 0b 4c 89 e7 e8 44 d0 ff ff 4c 89 e7 89 c6 e8
> 7d 2d fd ff eb
> Feb 16 00:40:17 localhost kernel: [23260.079409] RIP [<ffffffff810d9ed1>]
> kfree+0x31/0xb1
> Feb 16 00:40:17 localhost kernel: [23260.079412] RSP <ffff88012b02fd28>
> Feb 16 00:40:17 localhost kernel: [23260.079414] ---[ end trace
> bae1313833245122 ]---
> Feb 16 00:40:17 localhost kernel: [23260.079450] BUG: unable to handle kernel
> paging request at ffffffffffffffa8
> Feb 16 00:40:17 localhost kernel: [23260.079452] IP: [<ffffffff81049f54>]
> kthread_data+0xb/0x11
> Feb 16 00:40:17 localhost kernel: [23260.079455] PGD 1a0e067 PUD 1a0f067 PMD 0
> Feb 16 00:40:17 localhost kernel: [23260.079458] Oops: 0000 [#2] SMP
> Feb 16 00:40:17 localhost kernel: [23260.079461] Modules linked in:
> ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4
> xt_state nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle iptable_filter
> ip_tables tun bridge stp llc nouveau snd_hda_codec_hdmi coretemp kvm_intel
> snd_hda_codec_realtek uvcvideo videobuf2_vmalloc snd_hda_intel
> videobuf2_memops videobuf2_core kvm mxm_wmi wmi videodev hwmon ttm
> snd_hda_codec drm_kms_helper rtl8192se rtlwifi nvidiafb mei lpc_ich mfd_core
> i2c_i801 snd_hwdep
> Feb 16 00:40:17 localhost kernel: [23260.079490] CPU 0
> Feb 16 00:40:17 localhost kernel: [23260.079492] Pid: 3811, comm: kworker/0:1
> Tainted: G D W 3.8.0-rc7-lap #1 TOSHIBA Satellite A665/NWQAA
> Feb 16 00:40:17 localhost kernel: [23260.079494] RIP:
> 0010:[<ffffffff81049f54>] [<ffffffff81049f54>] kthread_data+0xb/0x11
> Feb 16 00:40:17 localhost kernel: [23260.079497] RSP: 0018:ffff88012b02f998
> EFLAGS: 00010092
> Feb 16 00:40:17 localhost kernel: [23260.079499] RAX: 0000000000000000 RBX:
> ffff8801bfc11cc0 RCX: ffff8801bfc11d68
> Feb 16 00:40:17 localhost kernel: [23260.079501] RDX: 0000000000000000 RSI:
> 0000000000000000 RDI: ffff8801b0300000
> Feb 16 00:40:17 localhost kernel: [23260.079502] RBP: ffff88012b02f998 R08:
> ffffffff81b6a160 R09: 000000000000b451
> Feb 16 00:40:17 localhost kernel: [23260.079504] R10: ffffffff81a23330 R11:
> ffff8801b4989180 R12: ffff8801b03003c8
> Feb 16 00:40:17 localhost kernel: [23260.079506] R13: 0000000000000000 R14:
> 0000000000000000 R15: 0000000000000006
> Feb 16 00:40:17 localhost kernel: [23260.079508] FS: 0000000000000000(0000)
> GS:ffff8801bfc00000(0000) knlGS:0000000000000000
> Feb 16 00:40:17 localhost kernel: [23260.079510] CS: 0010 DS: 0000 ES: 0000
> CR0: 000000008005003b
> Feb 16 00:40:17 localhost kernel: [23260.079511] CR2: ffffffffffffffa8 CR3:
> 0000000001a0c000 CR4: 00000000000007f0
> Feb 16 00:40:17 localhost kernel: [23260.079513] DR0: 0000000000000000 DR1:
> 0000000000000000 DR2: 0000000000000000
> Feb 16 00:40:17 localhost kernel: [23260.079515] DR3: 0000000000000000 DR6:
> 00000000ffff0ff0 DR7: 0000000000000400
> Feb 16 00:40:17 localhost kernel: [23260.079517] Process kworker/0:1 (pid:
> 3811, threadinfo ffff88012b02e000, task ffff8801b0300000)
> Feb 16 00:40:17 localhost kernel: [23260.079518] Stack:
> Feb 16 00:40:17 localhost kernel: [23260.079519] ffff88012b02f9c8
> ffffffff810464bd ffffffff81537e7a ffff8801bfc11cc0
> Feb 16 00:40:17 localhost kernel: [23260.079523] ffff8801b03003c8
> ffff88012b02f7d8 ffff88012b02fa78 ffffffff81537ef6
> Feb 16 00:40:17 localhost kernel: [23260.079526] ffff88012b02fa18
> 0000000000000246 ffffffff81a05000 0000000000011cc0
> Feb 16 00:40:17 localhost kernel: [23260.079529] Call Trace:
> Feb 16 00:40:17 localhost kernel: [23260.079533] [<ffffffff810464bd>]
> wq_worker_sleeping+0x15/0x78
> Feb 16 00:40:17 localhost kernel: [23260.079536] [<ffffffff81537e7a>] ?
> __schedule+0xe5/0x58b
> Feb 16 00:40:17 localhost kernel: [23260.079539] [<ffffffff81537ef6>]
> __schedule+0x161/0x58b
> Feb 16 00:40:17 localhost kernel: [23260.079542] [<ffffffff8153859c>]
> schedule+0x5f/0x61
> Feb 16 00:40:17 localhost kernel: [23260.079546] [<ffffffff81034b56>]
> do_exit+0x8e8/0x8ea
> Feb 16 00:40:17 localhost kernel: [23260.079549] [<ffffffff8103267e>] ?
> kmsg_dump+0x1f/0x112
> Feb 16 00:40:17 localhost kernel: [23260.079552] [<ffffffff8153a5df>]
> oops_end+0xb2/0xba
> Feb 16 00:40:17 localhost kernel: [23260.079555] [<ffffffff810052ad>]
> die+0x55/0x60
> Feb 16 00:40:17 localhost kernel: [23260.079558] [<ffffffff8153a082>]
> do_trap+0x6b/0x132
> Feb 16 00:40:17 localhost kernel: [23260.079562] [<ffffffff81002fa6>]
> do_invalid_op+0x93/0x9c
> Feb 16 00:40:17 localhost kernel: [23260.079565] [<ffffffff810d9ed1>] ?
> kfree+0x31/0xb1
> Feb 16 00:40:17 localhost kernel: [23260.079569] [<ffffffff8122cb5d>] ?
> trace_hardirqs_off_thunk+0x3a/0x3c
> Feb 16 00:40:17 localhost kernel: [23260.079572] [<ffffffff81539a49>] ?
> restore_args+0x30/0x30
> Feb 16 00:40:17 localhost kernel: [23260.079575] [<ffffffff81540225>]
> invalid_op+0x15/0x20
> Feb 16 00:40:17 localhost kernel: [23260.079578] [<ffffffff810d9ed1>] ?
> kfree+0x31/0xb1
> Feb 16 00:40:17 localhost kernel: [23260.079581] [<ffffffff810d9ebd>] ?
> kfree+0x1d/0xb1
> Feb 16 00:40:17 localhost kernel: [23260.079584] [<ffffffff8125fe88>]
> acpi_os_execute_deferred+0x2a/0x2f
> Feb 16 00:40:17 localhost kernel: [23260.079586] [<ffffffff810441f0>]
> process_one_work+0x1d8/0x2eb
> Feb 16 00:40:17 localhost kernel: [23260.079589] [<ffffffff81044183>] ?
> process_one_work+0x16b/0x2eb
> Feb 16 00:40:17 localhost kernel: [23260.079592] [<ffffffff8125fe5e>] ?
> acpi_os_wait_events_complete+0x1e/0x1e
> Feb 16 00:40:17 localhost kernel: [23260.079595] [<ffffffff8104603d>]
> worker_thread+0x13e/0x1c1
> Feb 16 00:40:17 localhost kernel: [23260.079598] [<ffffffff81045eff>] ?
> manage_workers+0x250/0x250
> Feb 16 00:40:17 localhost kernel: [23260.079600] [<ffffffff81049d14>]
> kthread+0xa5/0xad
> Feb 16 00:40:17 localhost kernel: [23260.079603] [<ffffffff81049c6f>] ?
> __init_kthread_worker+0x56/0x56
> Feb 16 00:40:17 localhost kernel: [23260.079606] [<ffffffff8153eeec>]
> ret_from_fork+0x7c/0xb0
> Feb 16 00:40:17 localhost kernel: [23260.079608] [<ffffffff81049c6f>] ?
> __init_kthread_worker+0x56/0x56
> Feb 16 00:40:17 localhost kernel: [23260.079610] Code: 48 89 e5 65 48 8b 04 25
> 80 b9 00 00 48 8b 80 70 03 00 00 48 8b 40 98 c9 48 c1 e8 02 83 e0 01 c3 55 48
> 8b 87 70 03 00 00 48 89 e5 <48> 8b 40 a8 c9 c3 55 48 89 e5 65 48 8b 04 25 80
> b9 00 00 48 8b
> Feb 16 00:40:17 localhost kernel: [23260.079644] RIP [<ffffffff81049f54>]
> kthread_data+0xb/0x11
> Feb 16 00:40:17 localhost kernel: [23260.079647] RSP <ffff88012b02f998>
> Feb 16 00:40:17 localhost kernel: [23260.079648] CR2: ffffffffffffffa8
> Feb 16 00:40:17 localhost kernel: [23260.079650] ---[ end trace
> bae1313833245123 ]---
> Feb 16 00:40:17 localhost kernel: [23260.079652] Fixing recursive fault but
> reboot is needed!
>
> ---
> Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
>


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