Message-ID: <dd18b0c30806011613l6c8c1863rd237f7de06a6b33a@mail.gmail.com>
Date:	Sun, 1 Jun 2008 23:13:51 +0000
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: BUG kmalloc-2048: Poison overwritten

I received this after the second simultaneous suspend: (I will try and
see if this is re creatable or not)

[  232.270737] BUG: unable to handle kernel paging request at 6b6b6c6b
[  232.270743] IP: [<c013f96d>] module_put+0x12/0x2b
[  232.270750] *pde = 00000000
[  232.270753] Oops: 0002 [#1] SMP
[  232.270757] Modules linked in: hci_usb cpufreq_ondemand
cpufreq_performance cpufreq_powersave rfcomm hidp l2cap bluetooth fan
ipmi_watchdog ipmi_msghandler uinput wlan_tkip ieee80211_crypt_tkip
ieee80211_crypt arpt_mangle arptable_filter arp_tables
nf_conntrack_ipv4 nf_conntrack iptable_mangle iptable_filter ip_tables
x_tables intelfb i2c_i810 i2c_algo_bit coretemp eeprom acpi_cpufreq
fglrx(P) applesmc joydev uvcvideo appletouch wlan_scan_sta
ath_rate_sample firewire_ohci firewire_core snd_hda_intel ath_pci
snd_pcm wlan ohci1394 intel_agp evdev ath_hal(P) snd_timer ieee1394
pata_acpi thermal ehci_hcd uhci_hcd snd_page_alloc snd_hwdep agpgart
video button processor
[  232.270800]
[  232.270802] Pid: 2690, comm: btdelconn Tainted: P
(2.6.26-rc4-00033-g5463508 #4)
[  232.270805] EIP: 0060:[<c013f96d>] EFLAGS: 00010246 CPU: 0
[  232.270808] EIP is at module_put+0x12/0x2b
[  232.270810] EAX: 00000000 EBX: 00000000 ECX: c020f49b EDX: 6b6b6b6b
[  232.270812] ESI: f4858830 EDI: f572aab8 EBP: f4893f78 ESP: f4893f78
[  232.270815]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[  232.270817] Process btdelconn (pid: 2690, ti=f4892000 task=f7fe6220
task.ti=f4892000)
[  232.270819] Stack: f4893f8c f8bcb705 f572aaac f5b8bcb0 f572aaa8
f4893fa8 c012f90d f5b8bcc0
[  232.270826]        f8bcb6a6 f5b8bcb0 f4893fb0 f5b8bcc8 f4893fd0
c0130119 00000000 f7fe6220
[  232.270832]        c01324cd f4893fbc f4893fbc f5b8bcb0 c0130063
00000000 f4893fe0 c013240d
[  232.270838] Call Trace:
[  232.270842]  [<f8bcb705>] ? del_conn+0x5f/0x64 [bluetooth]
[  232.270854]  [<c012f90d>] ? run_workqueue+0x78/0xfb
[  232.270859]  [<f8bcb6a6>] ? del_conn+0x0/0x64 [bluetooth]
[  232.270869]  [<c0130119>] ? worker_thread+0xb6/0xc2
[  232.270873]  [<c01324cd>] ? autoremove_wake_function+0x0/0x30
[  232.270878]  [<c0130063>] ? worker_thread+0x0/0xc2
[  232.270882]  [<c013240d>] ? kthread+0x3b/0x62
[  232.270885]  [<c01323d2>] ? kthread+0x0/0x62
[  232.270889]  [<c01044ef>] ? kernel_thread_helper+0x7/0x10
[  232.270896]  =======================
[  232.270897] Code: 84 00 00 00 e8 45 fa 0c 00 89 f8 e8 3e fa 0c 00
5a 89 f0 59 5b 5e 5f 5d c3 55 85 c0 89 e5 89 c2 74 20 64 a1 04 d0 50
c0 c1 e0 06 <ff> 8c 02 00 01 00 00 83 3a 02 75 0b 8b 82 88 01 00 00 e8
00 a6
[  232.270932] EIP: [<c013f96d>] module_put+0x12/0x2b SS:ESP 0068:f4893f78
[  232.270937] ---[ end trace c436afcb6083d3a0 ]---
[  232.297190] =============================================================================
[  232.297190] BUG kmalloc-2048: Poison overwritten
[  232.297190] -----------------------------------------------------------------------------
[  232.297190]
[  232.297190] INFO: 0xf4858848-0xf4858848. First byte 0x6a instead of 0x6b
[  232.297190] INFO: Allocated in hci_alloc_dev+0x15/0x51 [bluetooth]
age=19928 cpu=0 pid=2815
[  232.297190] INFO: Freed in bt_release+0xe/0x10 [bluetooth] age=1
cpu=0 pid=2690
[  232.297190] INFO: Slab 0xc1690b00 objects=15 used=12 fp=0xf4858830
flags=0x400020c3
[  232.297190] INFO: Object 0xf4858830 @offset=2096 fp=0xf485b950
[  232.297190]
[  232.297190] Bytes b4 0xf4858820:  10 0a 00 00 40 93 ff ff 5a 5a 5a
5a 5a 5a 5a 5a ....@.ÿÿZZZZZZZZ
[  232.297190]   Object 0xf4858830:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[  232.297190]   Object 0xf4858840:  6b 6b 6b 6b 6b 6b 6b 6b 6a 6b 6b
6b 6b 6b 6b 6b kkkkkkkkjkkkkkkk
[  232.297190]   Object 0xf4858850:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[  232.297190]   Object 0xf4858860:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[  232.297190]   Object 0xf4858870:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[  232.297190]   Object 0xf4858880:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[  232.297190]   Object 0xf4858890:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[  232.297190]   Object 0xf48588a0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[  232.297190]  Redzone 0xf4859030:  bb bb bb bb
              »»»»
[  232.297190]  Padding 0xf4859058:  5a 5a 5a 5a 5a 5a 5a 5a
              ZZZZZZZZ
[  232.297190] Pid: 1390, comm: knodemgrd_0 Tainted: P      D
2.6.26-rc4-00033-g5463508 #4
[  232.297190]  [<c016d1ab>] print_trailer+0xc8/0xd0
[  232.297190]  [<c016d226>] check_bytes_and_report+0x73/0x8f
[  232.297190]  [<c016d497>] check_object+0xa4/0x18c
[  232.297190]  [<c016e051>] __slab_alloc+0x387/0x45f
[  232.297190]  [<c016f08d>] __kmalloc+0x85/0xdb
[  232.297190]  [<f8ae935b>] ? hpsb_alloc_packet+0x17/0x51 [ieee1394]
[  232.297190]  [<c016d1d4>] ? check_bytes_and_report+0x21/0x8f
[  232.297190]  [<f8ae935b>] hpsb_alloc_packet+0x17/0x51 [ieee1394]
[  232.297190]  [<f8ae93ac>] create_reply_packet+0x17/0x77 [ieee1394]
[  232.297190]  [<f8ae97c6>] hpsb_packet_received+0x3ba/0x5db [ieee1394]
[  232.297190]  [<c016e089>] ? __slab_alloc+0x3bf/0x45f
[  232.297190]  [<f8ae9b29>] hpsb_send_packet+0x142/0x192 [ieee1394]
[  232.297190]  [<f8ae9bc3>] hpsb_send_packet_and_wait+0x31/0x47 [ieee1394]
[  232.297190]  [<f8aeac66>] hpsb_read+0x5d/0xb3 [ieee1394]
[  232.297190]  [<f8aed865>] nodemgr_bus_read+0x40/0x149 [ieee1394]
[  232.297190]  [<f8af0382>] csr1212_read_keyval+0x2c0/0x3be [ieee1394]
[  232.297190]  [<f8af0655>] csr1212_parse_csr+0x1d5/0x211 [ieee1394]
[  232.297190]  [<f8aee756>] nodemgr_host_thread+0x343/0x7b9 [ieee1394]
[  232.297190]  [<f8aee413>] ? nodemgr_host_thread+0x0/0x7b9 [ieee1394]
[  232.297190]  [<c013240d>] kthread+0x3b/0x62
[  232.297190]  [<c01323d2>] ? kthread+0x0/0x62
[  232.297190]  [<c01044ef>] kernel_thread_helper+0x7/0x10
[  232.297190]  =======================
[  232.297190] FIX kmalloc-2048: Restoring 0xf4858848-0xf4858848=0x6b
[  232.297190]
[  232.297190] FIX kmalloc-2048: Marking all objects used

Hopefully this is nothing serious,
regards;

-- 
Justin P. Mattock
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