thernet/networking link down/AppleYukon2 - en0 link down/Massive writing into a NAS

Massive writing into a Volume located on a NAS // Ethernet/networking link down // AppleYukon2 - en0 link down

Scenario

Writing a massive data into a volume (sparsebundle) on a NAS (network attached store).

Problem / Error
Always during this process the Ethernet link down.

Then the MAC OS X (10.5.6) freeze – no reset, no shutdown and no volume eject – after trying some clicks the spinning wheel comes and only soft reset or hard reset shutdown.

Technical Info
Wireless Device: Linksys - WRT54G firmware updated
NAS/External Hard Drive: Iomega - Home Network HD firmware updated
MacBook Pro // Mac OS X (10.5.6) // 2.2 GHz Intel Core 2 Duo // 2 GB

Log
Apr 8 18:56:30 wslyMac /System/Library/CoreServices/backupd[207]: Backup requested by user

Apr 8 18:56:30 wslyMac /System/Library/CoreServices/backupd[207]: Starting standard backup

Apr 8 18:56:36 wslyMac /System/Library/CoreServices/backupd[207]: Mounted network destination using URL: smb://admin@STORAGE-7AB4/TimeMachine

Apr 8 18:56:36 wslyMac /System/Library/CoreServices/backupd[207]: Backup destination mounted at path: /Volumes/TimeMachine-1

Apr 8 18:56:58 wslyMac kernel[0]: AppleYukon2: 00000000,00000001 sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket tried N times

Apr 8 18:57:07 wslyMac hdiejectd[231]: running

Apr 8 18:57:08 wslyMac kernel[0]: jnl: disk1s2: replay_journal: from: 8088064 to: 15072256 (joffset 0x7d0000)

Apr 8 18:57:25 wslyMac kernel[0]: jnl: disk1s2: journal replay done.

Apr 8 18:57:25 wslyMac fseventsd[37]: event logs in /Volumes/TimeMachine_Backup/.fseventsd out of sync with volume. destroying old logs. (1989 18 2969)

Apr 8 18:57:25 wslyMac /System/Library/CoreServices/backupd[207]: Disk image /Volumes/TimeMachine-1/wslyMac_001b63b30d6b.sparsebundle mounted at: /Volumes/TimeMachine_Backup

Apr 8 18:57:25 wslyMac /System/Library/CoreServices/backupd[207]: Backing up to: /Volumes/TimeMachine_Backup/Backups.backupdb

Apr 8 18:57:29 wslyMac fseventsd[37]: log dir: /Volumes/TimeMachine_Backup/.fseventsd getting new uuid: CBE196F1-1008-4BFB-8D4A-AD9504E68ACF

Apr 8 18:57:59 wslyMac /System/Library/CoreServices/backupd[207]: Event store UUIDs don't match for volume: Macintosh HD

Apr 8 18:58:00 wslyMac /System/Library/CoreServices/backupd[207]: No pre-backup thinning needed: 29.79 GB requested (including padding), 245.17 GB available

Apr 8 19:20:31 wslyMac kernel[0]: AppleYukon2: 00000000,00000017 sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket tried N times

Apr 8 19:21:35 wslyMac kernel[0]: AppleYukon2: 00000000,0000001b sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket tried N times

Apr 8 19:21:53 wslyMac kernel[0]: AppleYukon2: 00000000,0000001e sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket tried N times

Apr 8 19:23:32 wslyMac kernel[0]: AppleYukon2: 00000000,00000004 sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket tried N times

Apr 8 19:23:37 wslyMac kernel[0]: AppleYukon2: 00000000,00000001 sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket tried N times

Apr 8 19:23:41 wslyMac kernel[0]: AppleYukon2: 00000000,00000011 sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket tried N times

Apr 8 19:25:32 wslyMac kernel[0]: smb_iod_sendall: Timed out waiting on the response for 0x32

Apr 8 19:25:38 wslyMac kernel[0]: AppleYukon2: 00000000,000003e8 sk98osx sky2 - - sk98osx_sky2::replaceOrCopyPacket timedout

Apr 8 19:32:07 localhost kernel[0]: npvhash=4095