TRIM command (as it applies to SSD) and the vanilla arch kernel

According to this wikipedia article, the TRIM command has been implemented in Linux since kernel version 2.6.28. I'm wondering if the vanilla Arch kernel (x86_64) has support for this compiled in and if so which module would one need to modprobe to use it?
Thanks!

graysky wrote:hmmmm... is NOMMU_INITIAL_TRIM_EXCESS the so-called "TRIM" support in the kernel?
I don't think so, that seems to be memory (ram) related (NOMMU.... MMU is related to memory access as far as I know).
All I could find with a quick google search were a few posts saying there are submitted patches and some scripts .... nothing too certain.
As always things seem to be going at the windows development speed instead of the pace technology could go, also it seems that the spec for the trim command is/was still being finalized.
http://www.linuxquestions.org/questions … ux-713006/
http://marc.info/?l=linux-kernel&m=124169431911648&w=2
http://forum.soft32.com/linux/Linux-ATA … 83626.html
http://www.ocztechnologyforum.com/forum … fb&t=60882

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Linux version 2.6.15-archck (root@claudius) (gcc version 4.0.3 20051222 (prerelease)) #1 SMP PREEMPT Tue Jan 24 13:17:08 CET 2006
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000d8000 - 00000000000e0000 (reserved)
BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001bf70000 (usable)
BIOS-e820: 000000001bf70000 - 000000001bf7c000 (ACPI data)
BIOS-e820: 000000001bf7c000 - 000000001bf80000 (ACPI NVS)
BIOS-e820: 000000001bf80000 - 000000001c000000 (reserved)
BIOS-e820: 000000002bf80000 - 000000002c000000 (reserved)
BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
447MB LOWMEM available.
On node 0 totalpages: 114544
DMA zone: 4096 pages, LIFO batch:0
DMA32 zone: 0 pages, LIFO batch:0
Normal zone: 110448 pages, LIFO batch:31
HighMem zone: 0 pages, LIFO batch:0
DMI 2.3 present.
ACPI: RSDP (v000 PTLTD ) @ 0x000f6ca0
ACPI: RSDT (v001 PTLTD RSDT 0x06040000 LTP 0x00000000) @ 0x1bf75e53
ACPI: FADT (v001 ATI Salmon 0x06040000 ATI 0x000f4240) @ 0x1bf7bf64
ACPI: BOOT (v001 PTLTD $SBFTBL$ 0x06040000 LTP 0x00000001) @ 0x1bf7bfd8
ACPI: DSDT (v001 ATI MS2_1535 0x06040000 MSFT 0x0100000e) @ 0x00000000
ACPI: PM-Timer IO Port: 0x8008
Allocating PCI resources starting at 30000000 (gap: 2c000000:d3f80000)
Built 1 zonelists
Kernel command line: root=/dev/hda2 devfs=nomount ro resume2=file:/dev/hda2:0x10016
Local APIC disabled by BIOS -- you can enable it with "lapic"
mapped APIC to ffffd000 (01432000)
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 32768 bytes)
Using 3579 PM timer ticks per jiffy
Detected 1993.251 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 446304k/458176k available (2065k kernel code, 11332k reserved, 748k data, 212k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 3990.05 BogoMIPS (lpj=1995027)
Security Framework v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: After generic identify, caps: bfebf9ff 00000000 00000000 00000000 00000400 00000000 00000000
CPU: After vendor identify, caps: bfebf9ff 00000000 00000000 00000000 00000400 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: Hyper-Threading is disabled
CPU: After all inits, caps: bfebf9ff 00000000 00000000 00000080 00000400 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
mtrr: v2.0 (20020519)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
ACPI: Looking for DSDT in initrd... not found.
ACPI: setting ELCR to 0200 (from 0420)
CPU0: Intel Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz stepping 07
SMP motherboard not detected.
Local APIC not detected. Using dummy APIC emulation.
Brought up 1 CPUs
checking if image is initramfs... it is
Freeing initrd memory: 3251k freed
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: PCI BIOS revision 2.10 entry at 0xfd89b, last bus=3
PCI: Using configuration type 1
ACPI: Subsystem revision 20050902
ACPI: Interpreter enabled
ACPI: Using PIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
PCI quirk: region 8000-803f claimed by ali7101 ACPI
PCI quirk: region 8040-805f claimed by ali7101 SMB
Boot video device is 0000:01:05.0
ACPI: PCI Interrupt Routing Table [_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [_SB_.PCI0.AGPB._PRT]
ACPI: PCI Interrupt Link [LNK0] (IRQs 7 10) *0, disabled.
ACPI: PCI Interrupt Link [LNK1] (IRQs 7 *10)
ACPI: PCI Interrupt Link [LNK2] (IRQs 7 *10)
ACPI: PCI Interrupt Link [LNK3] (IRQs 7 *10)
ACPI: PCI Interrupt Link [LNK4] (IRQs 7 11) *0, disabled.
ACPI: PCI Interrupt Link [LNK5] (IRQs 7 *11)
ACPI: PCI Interrupt Link [LNK6] (IRQs 7 10) *0, disabled.
ACPI: PCI Interrupt Link [LNK7] (IRQs *5)
ACPI: PCI Interrupt Link [LNK8] (IRQs 7 10) *0, disabled.
ACPI: Embedded Controller [EC0] (gpe 24)
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 13 devices
SCSI subsystem initialized
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
pnp: 00:06: ioport range 0x40b-0x40b has been reserved
pnp: 00:06: ioport range 0x480-0x48f has been reserved
pnp: 00:06: ioport range 0x4d0-0x4d1 has been reserved
pnp: 00:06: ioport range 0x4d6-0x4d6 has been reserved
pnp: 00:06: ioport range 0x8000-0x807f could not be reserved
PCI: Bridge: 0000:00:01.0
IO window: 9000-9fff
MEM window: d0500000-d05fffff
PREFETCH window: d8000000-dfffffff
PCI: Bus 2, cardbus bridge: 0000:00:0a.0
IO window: 00001800-000018ff
IO window: 00001c00-00001cff
PREFETCH window: 30000000-31ffffff
MEM window: 32000000-33ffffff
PCI: Bus 6, cardbus bridge: 0000:00:0a.1
IO window: 00002000-000020ff
IO window: 00002400-000024ff
PREFETCH window: 34000000-35ffffff
MEM window: 36000000-37ffffff
PCI: Enabling device 0000:00:0a.0 (0000 -> 0003)
ACPI: PCI Interrupt Link [LNK5] enabled at IRQ 11
PCI: setting IRQ 11 as level-triggered
ACPI: PCI Interrupt 0000:00:0a.0[A] -> Link [LNK5] -> GSI 11 (level, low) -> IRQ 11
PCI: Enabling device 0000:00:0a.1 (0000 -> 0003)
ACPI: PCI Interrupt 0000:00:0a.1[A] -> Link [LNK5] -> GSI 11 (level, low) -> IRQ 11
Simple Boot Flag at 0x37 set to 0x1
apm: BIOS not found.
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 [email protected]).
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
Activating ISA DMA hang workarounds.
vesafb: ATI Technologies Inc., MS2 , 01.00 (OEM: ATI RS200M )
vesafb: VBE version: 2.0
vesafb: no monitor limits have been set
vesafb: scrolling: redraw
Console: switching to colour frame buffer device 80x30
vesafb: framebuffer at 0xd8000000, mapped to 0xdc880000, using 6144k, total 65472k
fb0: VESA VGA frame buffer device
ACPI: AC Adapter [ACAD] (on-line)
ACPI: Battery Slot [BAT1] (battery absent)
ACPI: Power Button (FF) [PWRF]
ACPI: Power Button (CM) [PWRB]
ACPI: Lid Switch [LID]
ACPI: Video Device [VGA] (multi-head: yes rom: no post: no)
ACPI: CPU0 (power states: C1[C1] C2[C2])
ACPI: Processor [CPU0] (supports 8 throttling states)
ACPI: Thermal Zone [THRM] (29 C)
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
PNP: PS/2 Controller [PNP0303:KBC0,PNP0f13:MSE0] at 0x60,0x64 irq 1,12
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
00:0b: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
PCI: Enabling device 0000:00:08.0 (0000 -> 0003)
ACPI: PCI Interrupt Link [LNK6] enabled at IRQ 10
PCI: setting IRQ 10 as level-triggered
ACPI: PCI Interrupt 0000:00:08.0[A] -> Link [LNK6] -> GSI 10 (level, low) -> IRQ 10
0000:00:08.0: ttyS2 at I/O 0x1428 (irq = 10) is a 8250
0000:00:08.0: ttyS3 at I/O 0x1440 (irq = 10) is a 8250
Couldn't register serial port 0000:00:08.0: -28
floppy0: no floppy controllers found
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
loop: loaded (max 8 devices)
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 5, 196608 bytes)
TCP bind hash table entries: 16384 (order: 5, 196608 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 10
input: AT Translated Set 2 keyboard as /class/input/input0
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
Using IPI No-Shortcut mode
Suspend2 Core.
Suspend2 Compression Driver loading.
Suspend2 Encryption Driver loading.
Suspend2 Swap Writer loading.
Suspend2 FileWriter loading.
ACPI wakeup devices:
PCI0 MDEM LAN COM1 LID
ACPI: (supports S0 S3 S4 S5)
Freeing unused kernel memory: 212k freed
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ALI15X3: IDE controller at PCI slot 0000:00:10.0
ACPI: PCI Interrupt 0000:00:10.0[A]: no GSI
ALI15X3: chipset revision 196
ALI15X3: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x2840-0x2847, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0x2848-0x284f, BIOS settings: hdc:DMA, hdd:pio
Probing IDE interface ide0...
hda: IC25N040ATMR04-0, ATA DISK drive
Synaptics Touchpad, model: 1, fw: 5.8, id: 0x2348b3, caps: 0x904713/0x10008
input: SynPS/2 Synaptics TouchPad as /class/input/input1
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: QSI CD-RW/DVD-ROM SBW-241, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: 78140160 sectors (40007 MB) w/1740KiB Cache, CHS=16383/255/63, UDMA(100)
hda: cache flushes supported
hda: hda1 hda2 hda3 hda4
hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
ide-floppy driver 0.99.newide
Emulex LightPulse Fibre Channel SCSI driver 8.1.0
Copyright(c) 2004-2005 Emulex. All rights reserved.
QLogic Fibre Channel HBA Driver
seagate: ST0x/TMC-8xx not detected.
st: Version 20050830, fixed bufsize 32768, s/g segs 256
qlogicfas: no cards were found, please specify I/O address and IRQ using iobase= and irq= optionsFailed initialization of WD-7000 SCSI card!
3ware 9000 Storage Controller device driver for Linux v2.26.02.004.
iscsi: registered transport (tcp)
sym53c416.c: Version 1.0.0-ac
scsi: <fdomain> Detection failed (no card)
GDT-HA: Storage RAID Controller Driver. Version: 3.04
GDT-HA: Found 0 PCI Storage RAID Controllers
3ware Storage Controller device driver for Linux v1.26.02.001.
imm: Version 2.05 (for Linux 2.4.0)
ipr: IBM Power RAID SCSI Device Driver version: 2.1.0 (October 31, 2005)
Adaptec aacraid driver (1.1-4 Jan 24 2006 13:06:25)
nsp32: loading...
libata version 1.20 loaded.
osst :I: Tape driver with OnStream support version 0.99.3
osst :I: $Id: osst.c,v 1.73 2005/01/01 21:13:34 wriede Exp $
NCR53c406a: no available ports found
megaraid cmm: 2.20.2.6 (Release Date: Mon Mar 7 00:01:03 EST 2005)
megasas: 00.00.02.00-rc4 Fri Sep 16 12:37:08 EDT 2005
megaraid: 2.20.4.6 (Release Date: Mon Mar 07 12:27:22 EST 2005)
Loading Adaptec I2O RAID: Version 2.4 Build 5go
Detecting Adaptec I2O RAID controllers...
Fusion MPT base driver 3.03.04
Copyright (c) 1999-2005 LSI Logic Corporation
Fusion MPT misc device (ioctl) driver 3.03.04
mptctl: Registered with Fusion MPT base driver
mptctl: /dev/mptctl @ (major,minor=10,220)
Fusion MPT SAS Host driver 3.03.04
Fusion MPT SPI Host driver 3.03.04
Fusion MPT FC Host driver 3.03.04
JFS: nTxBlock = 3515, nTxLock = 28120
SGI XFS with ACLs, security attributes, large block numbers, no debug enabled
Suspend2 2.2-rc16: Filewriter: Sorry. No signature found.
Suspend2 2.2-rc16: No matching enabled writer found. Suspending disabled.
Suspend2 2.2-rc16: Missing or invalid storage location (resume2= parameter). Please correct and rerun lilo (or equivalent) before suspending.
ReiserFS: hda2: found reiserfs format "3.6" with standard journal
ReiserFS: hda2: using ordered data mode
ReiserFS: hda2: journal params: device hda2, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda2: checking transaction log (hda2)
ReiserFS: hda2: Using r5 hash to sort names
Adding 248968k swap on /dev/hda1. Priority:-1 extents:1 across:248968k
ReiserFS: hda3: found reiserfs format "3.6" with standard journal
ReiserFS: hda3: using ordered data mode
ReiserFS: hda3: journal params: device hda3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda3: checking transaction log (hda3)
ReiserFS: hda3: Using r5 hash to sort names
ReiserFS: hda4: found reiserfs format "3.6" with standard journal
ReiserFS: hda4: using ordered data mode
ReiserFS: hda4: journal params: device hda4, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda4: checking transaction log (hda4)
ReiserFS: hda4: Using r5 hash to sort names
usbcore: registered new driver usbfs
usbcore: registered new driver hub
usbcore: registered new driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
usbcore: registered new driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial Driver core
drivers/usb/serial/usb-serial.c: USB Serial support registered for Handspring Visor / Palm OS
drivers/usb/serial/usb-serial.c: USB Serial support registered for Sony Clie 3.5
drivers/usb/serial/usb-serial.c: USB Serial support registered for Sony Clie 5.0
usbcore: registered new driver visor
drivers/usb/serial/visor.c: USB HandSpring Visor / Palm OS driver
natsemi dp8381x driver, version 1.07+LK1.0.17, Sep 27, 2002
originally by Donald Becker <[email protected]>
http://www.scyld.com/network/natsemi.html
2.4.x kernel port by Jeff Garzik, Tjeerd Mulder
ACPI: PCI Interrupt Link [LNK1] enabled at IRQ 10
ACPI: PCI Interrupt 0000:00:12.0[A] -> Link [LNK1] -> GSI 10 (level, low) -> IRQ 10
natsemi eth0: NatSemi DP8381[56] at 0xd0009000 (0000:00:12.0), 00:0b:cd:a7:7b:27, IRQ 10, port TP.
orinoco 0.15rc3 (David Gibson <[email protected]>, Pavel Roskin <[email protected]>, et al)
orinoco_pci 0.15rc3 (Pavel Roskin <[email protected]>, David Gibson <[email protected]> & Jean Tourrilhes <[email protected]>)
PCI: Enabling device 0000:00:09.0 (0010 -> 0012)
ACPI: PCI Interrupt Link [LNK3] enabled at IRQ 10
ACPI: PCI Interrupt 0000:00:09.0[A] -> Link [LNK3] -> GSI 10 (level, low) -> IRQ 10
orinoco_pci: Detected device 0000:00:09.0, mem:0xd000b000-0xd000bfff, irq 10
eth1: Hardware identity 8013:0000:0001:0000
eth1: Station identity 001f:0009:0001:0004
eth1: Firmware determined as Intersil 1.4.9
eth1: Ad-hoc demo mode supported
eth1: IEEE standard IBSS ad-hoc mode supported
eth1: WEP supported, 104-bit key
eth1: MAC address 00:02:8A:A1:8A:21
eth1: Station name "Prism I"
eth1: ready
Linux agpgart interface v0.101 (c) Dave Jones
[drm] Initialized drm 1.0.0 20040925
ACPI: PCI Interrupt Link [LNK0] enabled at IRQ 10
ACPI: PCI Interrupt 0000:01:05.0[A] -> Link [LNK0] -> GSI 10 (level, low) -> IRQ 10
[drm] Initialized radeon 1.19.0 20050911 on minor 0:
p4-clockmod: Warning: Pentium 4-M detected. The speedstep-ich or acpi cpufreq modules offer voltage scaling in addition of frequency scaling. You should use either one instead of p4-clockmod, if possible.
p4-clockmod: P4/Xeon(TM) CPU On-Demand Clock Modulation available
CSLIP: code copyright 1989 Regents of the University of California
PPP generic driver version 2.4.2
agpgart: Detected Ati IGP330/340/345/350/M chipset
agpgart: AGP aperture is 64M @ 0xd4000000
lp: driver loaded but no devices found
ppdev: user-space parallel port driver
Real Time Clock Driver v1.12
input: PC Speaker as /class/input/input2
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378 (0x778), irq 7 [PCSPP,TRISTATE]
lp0: using parport0 (interrupt-driven).
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
PCI: Enabling device 0000:00:06.0 (0005 -> 0007)
ACPI: PCI Interrupt Link [LNK7] enabled at IRQ 5
PCI: setting IRQ 5 as level-triggered
ACPI: PCI Interrupt 0000:00:06.0[A] -> Link [LNK7] -> GSI 5 (level, low) -> IRQ 5
AC'97 1 does not respond - RESET
AC'97 1 access is not valid [0xffffffff], removing mixer.
ali mixer 1 creating error.
NET: Registered protocol family 23
ieee80211_crypt: registered algorithm 'NULL'
hostap_pci: 0.4.4-kernel (Jouni Malinen <[email protected]>)
ACPI: PCI Interrupt 0000:00:0a.0[A] -> Link [LNK5] -> GSI 11 (level, low) -> IRQ 11
Yenta: CardBus bridge found at 0000:00:0a.0 [103c:002a]
Yenta O2: res at 0x94/0xD4: ea/00
Yenta O2: enabling read prefetch/write burst
Yenta: ISA IRQ mask 0x0018, PCI irq 11
Socket status: 30000006
ACPI: PCI Interrupt 0000:00:0a.1[A] -> Link [LNK5] -> GSI 11 (level, low) -> IRQ 11
Yenta: CardBus bridge found at 0000:00:0a.1 [103c:002a]
Yenta: ISA IRQ mask 0x0018, PCI irq 11
Socket status: 30000006
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usbcore: registered new driver usblp
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
PCI: Enabling device 0000:00:0e.2 (0010 -> 0012)
ACPI: PCI Interrupt Link [LNK4] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:0e.2[C] -> Link [LNK4] -> GSI 11 (level, low) -> IRQ 11
PCI: Via IRQ fixup for 0000:00:0e.2, from 255 to 11
ehci_hcd 0000:00:0e.2: EHCI Host Controller
ehci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:0e.2: irq 11, io mem 0xd0008800
ehci_hcd 0000:00:0e.2: USB 2.0 started, EHCI 0.95, driver 10 Dec 2004
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 4 ports detected
USB Universal Host Controller Interface driver v2.3
ACPI: PCI Interrupt Link [LNK2] enabled at IRQ 10
ACPI: PCI Interrupt 0000:00:0e.0[A] -> Link [LNK2] -> GSI 10 (level, low) -> IRQ 10
uhci_hcd 0000:00:0e.0: UHCI Host Controller
uhci_hcd 0000:00:0e.0: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:0e.0: irq 10, io base 0x00002800
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
usb 1-1: new high speed USB device using ehci_hcd and address 2
ACPI: PCI Interrupt 0000:00:0e.1[B] -> Link [LNK3] -> GSI 10 (level, low) -> IRQ 10
uhci_hcd 0000:00:0e.1: UHCI Host Controller
uhci_hcd 0000:00:0e.1: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:0e.1: irq 10, io base 0x00002820
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
scsi2 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
ieee1394: Initialized config rom entry `ip1394'
ohci1394: $Rev: 1313 $ Ben Collins <[email protected]>
PCI: Enabling device 0000:00:0c.0 (0010 -> 0012)
ACPI: PCI Interrupt 0000:00:0c.0[A] -> Link [LNK5] -> GSI 11 (level, low) -> IRQ 11
ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[11] MMIO=[d0008000-d00087ff] Max Packet=[2048]
eth1394: $Rev: 1312 $ Ben Collins <[email protected]>
eth1394: eth2: IEEE-1394 IPv4 over 1394 Ethernet (fw-host0)
usb 2-2: new full speed USB device using uhci_hcd and address 2
sbp2: $Rev: 1306 $ Ben Collins <[email protected]>
ieee1394: sbp2: Driver forced to serialize I/O (serialize_io=1)
ieee1394: sbp2: Try serialize_io=0 for better performance
hub 2-2:1.0: USB hub found
hub 2-2:1.0: 4 ports detected
usb 2-2.2: new low speed USB device using uhci_hcd and address 3
input: Logitech USB-PS/2 Optical Mouse as /class/input/input3
input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:00:0e.0-2.2
usb 2-2.4: new full speed USB device using uhci_hcd and address 4
drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x03F0 pid 0x0904
ieee1394: Host added: ID:BUS[0-00:1023] GUID[000bcd719fa6006d]
ip_tables: (C) 2000-2002 Netfilter core team
ip_conntrack version 2.4 (3579 buckets, 28632 max) - 212 bytes per conntrack
Vendor: WDC WD60 Model: 0UE-22HCT0 Rev: 0000
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
sda: assuming drive cache: write through
SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
sda: assuming drive cache: write through
sda: sda1
sd 2:0:0:0: Attached scsi disk sda
sd 2:0:0:0: Attached scsi generic sg0 type 0
usb-storage: device scan complete
eth0: DSPCFG accepted after 0 usec.
eth0: link up.
eth0: Setting full-duplex based on negotiated link capability.
mtrr: 0xd8000000,0x8000000 overlaps existing 0xd8000000,0x4000000
mtrr: 0xd8000000,0x8000000 overlaps existing 0xd8000000,0x4000000
mtrr: 0xd8000000,0x8000000 overlaps existing 0xd8000000,0x4000000
[drm:radeon_cp_init] *ERROR* radeon_cp_init called without lock held
[drm:drm_unlock] *ERROR* Process 2343 using kernel context 0
eth0: no IPv6 routers present

Fitting an SSD to the T420, and moving Windows to it WITHOUT a reinstall

Hi there,
I'd seen some threads around about the T420's suitability for an SSD in the WWAN slot. Well I've just received my T420, and had ordered one of the Intel 80GB mSATA SSDs. I spent this evening moving the Windows install from the 500GB hard drive to the SSD, and didn't need to reinstall. I don't know why Lenovo don't offer the SSD as an option!
So I bought the 80GB Intel mSATA SSD from Ingram Micro; you can just fit it into the wireless WAN (i.e. 3G slot) in the T420 - took about 5 minutes, and you just have to tuck the aerial leads out of the way when you put the bottom back on. The BIOS detects the SSD without a problem.
M'colleague Pete suggested the trick to avoid a reinstall of Windows 7. In brief, we shrank the HDD's Windows partition down to 50GB, created a mirror of it on the SSD, then rebooted off the SSD and removed the mirror.
In some detail:
1) make a recovery disc before you start (I didn't but I know this stuff!);
2) defragment your C drive (right click under My Computer, go to Properties->Tools and choose defragment). Took about 45 minutes to finish on mine;
3) go to Computer Management -> Storage -> Disc Management;
4) right-click both the SSD, and the internal hard drive, and convert both of them to Dynamic Disks
5) right-click the larger of the two windows partitions on your hard disc, and shrink them to the size of your SSD (i.e. 74GB if you want to use the whole SSD for Windows) - wait for that to complete;
6) create a mirror of the first two partitions on the hard drive, mirroring them to the SSD (i.e. right-click each partition, click Add Mirror, and choose Disk 1 as the destination);
7) wait for the mirrors to complete (i.e. the Rebuilding... message will go away).
8) start an administrator-mode command prompt (go to Start, type "command" and click the "Command Prompt" option while holding ctlr+shift);
9) type "bcdedit /enum" and note the long number associated with the SECOND boot option. Then type "bcdedit /default {xxx}" where xxx is the number. For good measure type "bcdedit /timeout 2" to make sure you see the menu and can fix a mistake manually;
10) reboot the system - before it comes back you'll see the windows boot loader menu - choose the second option (should be the default), which is to boot off your SSD
11) when windows comes back up, you can go back to the Disk Manager and choose "Remove mirror" for disk 0, and you can reclaim the space. Hooray!
That is about the minimum that you need to do to move the partition and get it to boot.
I wasn't sure how to tell windows to install a bootloader on the SSD, and completely disengage the hard drive from the boot process, but I'm sure someone will fill me in.
NB I've not tested the above sequence PRECISELY, as I had some further fiddling to get my Linux installation to work, which isn't relevant to the above trick. I'd be interested to know if it works for someone else - as I said, please make sure you have your recovery DVDs and backups handy just in case.

You could have used Intel's Clone tools. My experience is that you are better off following the prescribed method of using the rescue disks to do a reinstall. The system seems to boot faster that way.
When asking for help, post your question in the forum. Remember to include your system type, model number and OS. Do not post your serial number.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help others with the same question in the future.
My TPs: Twist 2HU: i5-3317U Win 8 Pro, 4GB RAM 250GB Samsung 840 | T420 4177CTO: i5-2520M, HD+, Win 7 Pro x64, 8GB RAM, Optimus, 160GB Intel 320 SSD, Intel 6300 WiFi, BT 3.0 | T400 2764CTO: P8700, WXGA, Win 7 Ult x64, AMD 3470, 8GB RAM, 64GB Samsung SSD, BT, Intel 5300 WiFi | A20m 14.1" PIII 500 (retired). Monitors: 2x Dell U2211h IPS 100% sRGB calibrated w/ Spyder3.

TRIM Command Capture

Is it possible to capture TRIM commands in an Xperf trace? And if so, what provider do I need to use?
Thank you,
Dennis Ginley

Trimming selecting white from a corner should leave the smallest image with no white pixels anywhere on the image border rectangle. If you are using the measure tool to straighten image it is likely that non-white corner points of the image touch the bounding box (left, right, top, bottom of the image rectangle boundaries), so it is not possible to trim to a smaller rectangle without cropping some non-white image pixels. You would in this instance see white wedges at the sides, not white all the way around the straightened image.
A way to test this: After using the ruler tool to straighten your image, go to Image > Canvas Size and increase the canvas size by some amount. and select Canvas extension color to be white. Now try trim from a corner and see what happens.

I have a brand new MacBook Air 11 inch, 4gb RAM and 256 gb SSD where the screen flickered abnormally and got dead all of a sudden while uploading a photograph in FB. Can anybody help?

I have a new MacBook Air 11 inch, 4gb RAM, 256 SSD and use Mavericks OS. It is still under waranty period.
Just few days ago while I was uploading a photograph in facebook, the screen started flickering abnoromally. I tried using the escape button but nothing was working so switched off by pressing the power button.
After few minutes I tried to switch it on but my system never waked up. Called up the Apple Support, did SMC and PRAM but nothing worked. Then I was advised to take it to Apple's authorised service centre.
At the service centre the engineers diagnoised and then said that the MLB/mother board needs to be replaced. Had waited for six-long days and today they had replaced the MLB/mother board. Now, the system came to life but nothing has booted. The screen goes white and a '?' question mark icon keeps on flickering.
After thoroughly diagnoising it the engineer said that now the problem is with the SSD and the worse thing is all my important documents and photographs etc are no more there. And I don't have a backup of the same!
While Apple Support contact centre is assuring they would replace any other parts if found faulty, but I feel differently. First, the MLB/mother board was changed now they say it is SSD problem - so if the SSD too is replaced there are possibilities of more faults coming up. All I can see and feel that this particular machine has turned out to be architectually deffective that calls for immediate replacement.
Right now I am using a friend's windows pc to write this mail.
Feeling completely miserable - all my expectatations gone after investing in such an expensive machine, loss of all my data, wastage of time and energy and to top it all affecting my daily work.
Can anybody please advise what shall I do?

Take the system to an Apple store to be fixed or replaced as the one you have has defective hardware.

Can I have iTunes music on my SSD and an external drive? How will this affect syncing to iOS devices?

I don't have space to keep my entire iTunes library on my SSD. Currently I have my iTunes library split as follows:
SSD: Contains a subset of music, apps, books, etc. New items usually get added here.
External HD: Contains all of my music and iTunes media (including apps... so many apps). It's usually missing the most recent items added, due to the fact I don't plug it in so often.
I ran into a problem maintaining these two libraries earlier while syncing my iPhone. When I tried to sync the iPhone with the SSD library, it would delete apps off of my phone because they weren't contained in the iTunes library there, even though I had the same base .itl file for both the SSD and the external libraries.
What I want to do is set it up so that I maintain a core of music on my SSD and the stuff I don't listen to as often on my external hard drive. I also want to keep all the space hogs (movies, apps, etc) on the external as well. However, I want this to appear as one seamless iTunes library and I DON'T EVER WANT ANYTHING DELETED FROM MY PHONE WHEN I SYNC IT. I want to be able to sync my phone without worrying that apps will be deleted and I'll have to restore them from iCloud and reset all the settings, sign in, etc. Right now I am backing up to iCloud, but my understanding is that iTunes will still delete things from my phone if they are not available in the library.
My question: How do I accomplish this? I have a lot of metadata in my iTunes library that I don't want to lose (playcounts, ratings, etc).
I currently have this:   SSD: .itl file pointing to music on the SSD, a mixture of iTunes media (some that I want easily accessible, some I don't)
                                  External drive: .itl file pointing to music on the external drive, all of my iTunes media (except for anything I may have added to the SSD)
I think I need this:       SSD: .itl file pointing to music on the SSD and the external, music that I listen to often
                                 External drive: music that I don't listen to often, things that take up a lot of space
My thought process is that I will need to somehow move music from the external to the SSD while maintaining the pointers so that iTunes knows where they are. For this I have unchecked "Keep iTunes Media Folder Organized" and "Copy Files to iTunes Media Folder When Adding To Library," and to maintain the pointers and move the songs, I'm thinking of using Doug's Applescripts for "Relocate Selected:" http://dougscripts.com/itunes/scripts/ss.php?sp=relocateselected
Once I have the songs split across these drives, I'm going to copy the .itl file from the external to the SSD and boot it up to see if it works.
Two things: 1.) Will this approach work? Can I maintain my library across separate drives this way and have it be seamless? I understand I won't be able to access the media on my external hard drive when it is not plugged in (duh), but...
2.) Will it affect syncing? When my external isn't plugged in, will iTunes try and delete things from my iPhone? It should still be able to "see" them, it just won't be able to access them. Will I have to turn off syncing apps while syncing with my external device unplugged?
Thanks very much for any help and insight! It is greatly appreciated as I deal with limited storage space and an expanding iTunes library.

This is all just a partial answer since details will depend upon how you want to do it.
Post by Zevoneer: iPod media recovery options - https://discussions.apple.com/message/11624224 - this is an older post and many of the links are also for old posts, so bear this in mind when reading them.
Commercial software utility for transferring songs from i-device to Mac - http://www.fadingred.com/senuti/
http://support.apple.com/kb/HT1848 - just media purchased from iTunes Store
You'll need to get it all onto one iTunes collection on your Mac Pro, then sync the devices to that. iTunes only lets you transfer purchases from a device, otherwise you have to use third party software.
I guess you could also look into getting iTunes Match.

How do I merge two seperate HD's into one. I upgraded my MBP to an SSD and installed a hybrid in the optical bay.

I intially planned to use my cloned system on the SSD and the Hybrid to be used as backup, media, whatever else. But I only had access to certain program on another MBP and so I cloned it to a partition on the Hybrid. So basically I have two seperate computers each isolated from one another. I have two startup disks, 2 seperate everything. And I have to be careful when syncing my dropbox and a myriad of issues when swithing from one to the other. So does anyone have any questions about this or any suggestions as to how I can merge the 2 so that I can run the initial configuration I desired. Oh and the performance between the Momentus XT hybrid and the Intel-520 ssd are getting closer and closer as time goes by that I almost don't notice a difference, grnted my MBP is only backward compatible to 3gbs so I don't get the performance of the 6gbps capabilities of the intel. But GD its awesome.
I really would appreciate any suggestions. the machine is 15" MBP mid 2010 with 10.8.2.

I don't know that copying them from an external would be any different than doing it internally because they are physically seperated. I have tried many different configurations. It won't let me erase or format the SSD so that I can clone the Hybrid to it. Which is what I prefer to do but I haven't boot from the recovery or an external and tried doing it that way. But even then I have to boot from each seperately, what is holding me up is I've lost both product keys to office and adobe ms 6 due to the fact of not only having them so long and always upgrade using dmg's as well as upgrading os's so often. So those programs are only available on one computer. Which happens to be on a seperate internal disk. A slick unix script would be nice. I am just really tired of trial and error and would like to get back to using my stuff.

TRIM command (as it applies to SSD) and the vanilla arch kernel

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