2.6.15-rc5 - nonfatal libata assertion (qc->n_elem > 0)

[Alessandro Suardi]

This one is just for the record, as it doesn't appear to have had
 any side effects...

Dell Latitude D610, uptodate FC4, kernel 2.6.15-rc5, booted with
 libata.atapi_enabled=1.

Dec 10 19:33:26 sandman kernel: cdrom: This disc doesn't have any
tracks I recognize!
Dec 10 19:35:21 sandman kernel: Assertion failed! qc->n_elem >
0,drivers/scsi/libata-core.c,ata_fill_sg,line=2482
Dec 10 19:35:35 sandman last message repeated 18 times

This happened presumably when I earlier burned a CD-R
 with .wav audio tracks; the burning was successful.

Drive is detected as follows:

ata2: SATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xBFA8 irq 15
ata2: dev 0 cfg 49:0b00 82:0210 83:1000 84:0000 85:0000 86:0000 87:0000 88:0407
ata2: dev 0 ATAPI, max UDMA/33
ata2: dev 0 configured for UDMA/33
scsi1 : ata_piix
  Vendor: SONY      Model: DVD+-RW DW-Q58A   Rev: UDS1
  Type:   CD-ROM                             ANSI SCSI revision: 05

--alessandro

 "So much can happen by accident
  No rhyme, no reason - no one's innocent"

   (Steve Wynn - "Under The Weather")
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