Hi,
I get plenty of these in /sys/kernel/debug/kmemleak:
unreferenced object 0xffff88019f675268 (size 32):
comm "usb-storage", pid 11411, jiffies 4310515592 (age 1538.100s)
hex dump (first 32 bytes):
05 0f 16 00 02 07 10 02 02 00 00 00 0a 10 03 00 ................
0e 00 01 0a ff 07 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff81811ca1>] kmemleak_alloc+0x21/0x50
[<ffffffff81166c5e>] __kmalloc+0xce/0x170
[<ffffffff815270d5>] usb_get_bos_descriptor+0xc5/0x230
[<ffffffff81519048>] hub_port_init+0x768/0xa20
[<ffffffff81519416>] usb_reset_and_verify_device+0xd6/0x540
[<ffffffff81519990>] usb_reset_device+0x110/0x190
[<ffffffff8154aed4>] usb_stor_port_reset+0x74/0x80
[<ffffffff8154af6f>] usb_stor_invoke_transport+0x8f/0x550
[<ffffffff81549df9>] usb_stor_transparent_scsi_command+0x9/0x10
[<ffffffff8154b7ab>] usb_stor_control_thread+0x16b/0x280
[<ffffffff810b8c95>] kthread+0xe5/0xf0
[<ffffffff8182caec>] ret_from_fork+0x7c/0xb0
[<ffffffffffffffff>] 0xffffffffffffffff
I believe these lines from dmesg are relevant:
[ 4.201374] usb 2-1: New USB device found, idVendor=8087, idProduct=0024
[ 4.202334] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 4.205214] hub 2-1:1.0: USB hub found
[ 4.206389] hub 2-1:1.0: 8 ports detected
[ 4.330926] usb 3-1: new high-speed USB device number 2 using xhci_hcd
[ 4.354303] usb 3-1: New USB device found, idVendor=2109, idProduct=3431
[ 4.356636] usb 3-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 4.358924] usb 3-1: Product: USB2.0 Hub
[ 4.387716] hub 3-1:1.0: USB hub found
[ 4.389999] hub 3-1:1.0: 4 ports detected
[ 4.521136] usb 3-2: new high-speed USB device number 3 using xhci_hcd
[ 4.541084] ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 4.544025] ata6.00: ATA-8: ST3000VX000-1CU166, CV22, max UDMA/133
[ 4.545766] ata6.00: 5860533168 sectors, multi 16: LBA48 NCQ (depth 31/32),
AA
[ 4.547652] usb 3-2: New USB device found, idVendor=2109, idProduct=0811
[ 4.549396] usb 3-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 4.551184] usb 3-2: Product: USB2.0 Hub
[ 4.553356] ata6.00: configured for UDMA/133
[ 4.555444] scsi 5:0:0:0: Direct-Access ATA ST3000VX000-1CU1 CV22
PQ: 0 ANSI: 5
[ 4.560417] sd 5:0:0:0: [sdb] 5860533168 512-byte logical blocks: (3.00
TB/2.72 TiB)
[ 4.561809] sd 5:0:0:0: [sdb] 4096-byte physical blocks
[ 4.563824] sd 5:0:0:0: [sdb] Write Protect is off
[ 4.565122] sd 5:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 4.567672] sd 5:0:0:0: [sdb] Write cache: enabled, read cache: enabled,
doesn't support DPO or FUA
[ 4.572740] sd 5:0:0:0: Attached scsi generic sg2 type 0
[ 4.578793] hub 3-2:1.0: USB hub found
[ 4.580040] hub 3-2:1.0: 4 ports detected
[ 4.628775] sdb: sdb1
[ 4.631812] sd 5:0:0:0: [sdb] Attached SCSI disk
[ 4.712068] usb 4-2: new SuperSpeed USB device number 2 using xhci_hcd
[ 4.733347] usb 4-2: Parent hub missing LPM exit latency info. Power
management will be impacted.
[ 4.738124] usb 4-2: New USB device found, idVendor=2109, idProduct=0811
[ 4.739477] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4.740835] usb 4-2: Product: 4-Port USB 3.0 Hub
[ 4.742179] usb 4-2: Manufacturer: VIA Labs, Inc.
[ 4.771771] hub 4-2:1.0: USB hub found
[ 4.773737] hub 4-2:1.0: 4 ports detected
[158794.376525] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[158794.581028] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[158794.581033] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[158829.439903] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[158829.514208] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[158829.514213] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[159013.517275] CPU1: Core temperature above threshold, cpu clock throttled
(total events = 3846484)
[159013.517278] CPU0: Package temperature above threshold, cpu clock throttled
(total events = 4139411)
[159013.517283] CPU1: Package temperature above threshold, cpu clock throttled
(total events = 4139471)
[159013.518287] CPU1: Core temperature/speed normal
[159013.518288] CPU0: Package temperature/speed normal
[159013.518291] CPU1: Package temperature/speed normal
[159221.397277] kmemleak: 16 new suspected memory leaks (see
/sys/kernel/debug/kmemleak)
[159256.419270] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[159256.493409] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[159256.493414] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[159316.457563] CPU1: Core temperature above threshold, cpu clock throttled
(total events = 3847901)
[159316.457566] CPU0: Package temperature above threshold, cpu clock throttled
(total events = 4140838)
[159316.457571] CPU1: Package temperature above threshold, cpu clock throttled
(total events = 4140898)
[159316.458575] CPU1: Core temperature/speed normal
[159316.458577] CPU0: Package temperature/speed normal
[159316.458580] CPU1: Package temperature/speed normal
[159528.276239] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[159528.350332] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[159528.350337] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[159608.001039] usb 3-1.1: USB disconnect, device number 4
[159641.626636] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[159641.700964] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[159641.700969] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[159650.609234] CPU1: Core temperature above threshold, cpu clock throttled
(total events = 3849107)
[159650.609237] CPU0: Package temperature above threshold, cpu clock throttled
(total events = 4142050)
[159650.609242] CPU1: Package temperature above threshold, cpu clock throttled
(total events = 4142110)
[159650.610233] CPU1: Core temperature/speed normal
[159650.610236] CPU0: Package temperature/speed normal
[159650.610239] CPU1: Package temperature/speed normal
[159706.877433] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[159706.942493] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[159706.942498] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[159720.864729] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[159720.938923] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[159720.938928] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[159737.635577] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[159737.709673] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[159737.709678] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[159961.915805] CPU0: Package temperature above threshold, cpu clock throttled
(total events = 4146185)
[159961.915821] CPU1: Core temperature above threshold, cpu clock throttled
(total events = 3853208)
[159961.915825] CPU1: Package temperature above threshold, cpu clock throttled
(total events = 4146245)
[159961.916804] CPU0: Package temperature/speed normal
[159961.916904] CPU1: Core temperature/speed normal
[159961.916906] CPU1: Package temperature/speed normal
[159981.952181] kmemleak: 10 new suspected memory leaks (see
/sys/kernel/debug/kmemleak)
[160031.009109] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[160031.083538] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[160031.083543] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[160097.171185] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[160097.375700] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[160097.375706] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[160168.229478] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[160168.295450] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[160168.295464] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[160187.613175] usb 3-1.3: reset high-speed USB device number 9 using xhci_hcd
[160187.687525] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012da8
[160187.687530] xhci_hcd 0000:0b:00.0: xHCI xhci_drop_endpoint called with
disabled ep ffff88018d012de8
[160608.847200] CPU1: Core temperature above threshold, cpu clock throttled
(total events = 3855438)
[160608.847202] CPU0: Package temperature above threshold, cpu clock throttled
(total events = 4148431)
[160608.847208] CPU1: Package temperature above threshold, cpu clock throttled
(total events = 4148491)
[160608.848212] CPU1: Core temperature/speed normal
[160608.848213] CPU0: Package temperature/speed normal
[160608.848215] CPU1: Package temperature/speed normal
[160674.438895] kmemleak: 12 new suspected memory leaks (see
/sys/kernel/debug/kmemleak)
# lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 002: ID 2109:3431
Bus 003 Device 003: ID 2109:0811
Bus 004 Device 002: ID 2109:0811
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 05ca:1820 Ricoh Co., Ltd Integrated Webcam
Bus 002 Device 003: ID 046d:c019 Logitech, Inc. Optical Tilt Wheel Mouse
Bus 002 Device 004: ID 138a:0011 Validity Sensors, Inc. VFS5011 Fingerprint
Reader
Bus 003 Device 006: ID 174c:5106 ASMedia Technology Inc. Transcend StoreJet 25M3
Bus 003 Device 009: ID 174c:5106 ASMedia Technology Inc. Transcend StoreJet 25M3
Bus 003 Device 005: ID 04f2:0116 Chicony Electronics Co., Ltd KU-2971/KU-0325
Keyboard
# lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
|__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 2: Dev 6, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 3: Dev 9, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 4: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid,
1.5M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
#
I know the CPU is overheating a bit, I am calculating some stuff here and it
seems
the FAN cannot handle it, hence the temperature warnings. The slowdowns of CPU
however should not affect it's functionality, but it seems the SandyBridge chip
or the CPU i7-2640M itself causes these errors and kmemleak in kernel.
Hope this helps,
Martin
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