help, after cvsup - erros on HDD and ICH5, FAILURE READ_DMA48

[GreenX FreeBSD]

Hi, ALL!

On Friday has made CVSUP (RELENG_6) has received - 6.1-RC.
Has updated system. After that, I have many errors:
-----------------------------------------
# grep -i error /var/log/messages
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=380951327
kernel: g_vfs_done ():ad0s1f [READ (offset=188067725312, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=380951327
kernel: g_vfs_done ():ad0s1f [READ (offset=188067725312, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=380951327
kernel: g_vfs_done ():ad0s1f [READ (offset=188067725312, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
----------------------------------------------

I have thought, what is it because of updating.
Has made: reboot -k /boot/kernel.last (the Kernel from February, 1)
But, errors too:

-------------------
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=380951327
kernel: g_vfs_done ():ad0s1f [READ (offset=188067725312, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285279
kernel: g_vfs_done ():ad0s1f [READ (offset=182094708736, length=16384)] 
error = 5
kernel: ad0: FAILURE - READ_DMA48 status=51 <READY, DSC, ERROR> error=40 
<UNCORRECTABLE> LBA=369285183
----------------------------------

*Prompt, it at me HDD fell down or mistakes in the new driver?*
This disk is connected to ICH5 udma100
Just in case I bring a configuration below:

---------------------------------------
#dmesg | grep ata
atapci0: <Promise PDC20378 SATA150 controller> port 0xdf00-0xdf3f, 
0xdfa0-0xdfaf, 0xdc00-0xdc7f mem 0xfe6fe000-0xfe6fefff, 
0xfe6c0000-0xfe6dffff irq 23 at device 4.0 on pci3
ata2: <ATA channel 0> on atapci0
ata3: <ATA channel 1> on atapci0
ata4: <ATA channel 2> on atapci0
atapci1: <Intel ICH5 UDMA100 controller> port 
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfc00-0xfc0f at device 31.1 on pci0
ata0: <ATA channel 0> on atapci1
ata1: <ATA channel 1> on atapci1
ad0: 194481MB <Maxtor 6Y200P0 YAR41BW0> at ata0-master UDMA100
acd0: CDROM <LG CD ROM CRD-8521B/1.00> at ata1-master PIO4
ad4: 305245MB <WDC WD3200JD-00KLB0 08.05J08> at ata2-master SATA150
ad6: 305245MB <WDC WD3200JD-00KLB0 08.05J08> at ata3-master SATA150
ad8: 305245MB <WDC WD3200JB-00KFA0 08.05J08> at ata4-master UDMA100
ad9: 305245MB <WDC WD3200JB-00KFA0 08.05J08> at ata4-slave UDMA100
ar0: disk0 READY (master) using ad4 at ata2-master
ar0: disk1 READY (master) using ad6 at ata3-master
ar0: disk2 READY (mirror) using ad8 at ata4-master
ar0: disk3 READY (mirror) using ad9 at ata4-slave

Best regards, GreenX.