8-stable/amd64: ATA: hard hang when doing "burncd fixate"

[Marcel Moolenaar]

All,

I get a hard hang on a TYAN Thunder K8S with a single Opteron
mounted:

	:
CPU: AMD Opteron(tm) Processor 246 (1991.62-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0xf58  Stepping = 8
  Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
  AMD Features=0xe0500800<SYSCALL,NX,MMX+,LM,3DNow!+,3DNow!>
real memory  = 1073741824 (1024 MB)
avail memory = 1023348736 (975 MB)
ACPI APIC Table: <A M I  OEMAPIC >
	:
atapci0: <SiI 3114 SATA150 controller> port 0xbc00-0xbc07,0xb880-0xb883,0xb800-0xb807,0xac00-0xac03,0xa880-0xa88f mem 0xfeafec00-0xfeafefff irq 19 at device 5.0 on pci3
atapci0: [ITHREAD]
ata2: <ATA channel 0> on atapci0
ata2: [ITHREAD]
ata3: <ATA channel 1> on atapci0
ata3: [ITHREAD]
ata4: <ATA channel 2> on atapci0
ata4: [ITHREAD]
ata5: <ATA channel 3> on atapci0
ata5: [ITHREAD]
	:
atapci1: <AMD 8111 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 7.1 on pci0
ata0: <ATA channel 0> on atapci1
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci1
ata1: [ITHREAD]
	:
atapci2: <Marvell 88SX6081 SATA300 controller> port 0x8800-0x88ff mem 0xfc800000-0xfc8fffff irq 26 at device 2.0 on pci2
atapci2: [ITHREAD]
ata6: <ATA channel 0> on atapci2
ata6: [ITHREAD]
ata7: <ATA channel 1> on atapci2
ata7: [ITHREAD]
ata8: <ATA channel 2> on atapci2
ata8: [ITHREAD]
ata9: <ATA channel 3> on atapci2
ata9: [ITHREAD]
ata10: <ATA channel 4> on atapci2
ata10: [ITHREAD]
ata11: <ATA channel 5> on atapci2
ata11: [ITHREAD]
ata12: <ATA channel 6> on atapci2
ata12: [ITHREAD]
ata13: <ATA channel 7> on atapci2
ata13: [ITHREAD]
	:
acd0: DVDR <NEC DVD+/-RW ND-6500A/2.22> at ata1-master UDMA33 
ad0: 476940MB <Maxtor 7H500F0 HA431DN0> at ata2-master UDMA100 SATA 1.5Gb/s
ad1: 476940MB <Maxtor 7H500F0 HA431DN0> at ata3-master UDMA100 SATA 1.5Gb/s
ad2: 1430799MB <Seagate ST31500341AS SD17> at ata6-master UDMA100 SATA 3Gb/s
ad3: 1430799MB <Seagate ST31500341AS CC1H> at ata7-master UDMA100 SATA 3Gb/s
ad4: 476940MB <MAXTOR STM3500630AS 3.AAE> at ata12-master UDMA100 SATA 1.5Gb/s
	:

Writing an image is fine using:
ns1% sudo burncd -f /dev/acd0 data FreeBSD-9.0-CURRENT-201001-ia64-bootonly.iso

Fixating the CD is causing the hard hang:
ns1% sudo burncd -f /dev/acd0 fixate
fixating CD, please wait..
*hard hang*

There's nothing in the console and interrupts are all
masked. A power-cycle is the only thing that can be done.

Is this a known issue?

-- 
Marcel Moolenaar
xcllnt at mac.com