Re: ata - interrupt seen but task queue stalled

+-------[ S?ren Schmidt ]----------------------
| Ketrien I. Saihr-Kesenchedra wrote:
| >At 02:49 AM 3/23/2004, S?ren Schmidt wrote:
| >
| >>Didn't you say it was on a ROSB4 chipset ? The ROSB4 doesn't really 
| >>support DMA on ATAPI devices, and has severe HW bugs that can cause 
| >>problems with UDMA on disks as well..
| >
| >
| >Yes, but this and sysctl's are a non-issue. The controller is set to 
| >PIO4 and actually locked there. The drive itself doesn't do anything but 
| >PIO4, being a slim CD-ROM. The OS resides on an ips. ie; This is a 
| >genuinely new issue, and I can say with a fair degree of certainty that 
| >it's something that's been changed. I can't break to debug either, but 
| >the kernel configuration didn't change between working and non-working.
| 
| Hmm, if you could provide us with a bit more information as to which 
| date it worked at and which date it broke, and the output of dmesg, then 
| we could do some qualified support, but without that, ENOCLUE...

My pioneer DVD hasn't been reliable for months...

This is from a cvsup around 48 hours ago.

This is stuff from a verbose boot that didn't panic or hang.

atapci0: <VIA 8235 UDMA133 controller> port 0xa400-0xa40f at device 17.1 on pci0
ata0: reset tp1 mask=03 ostat0=50 ostat1=00 
ata0-master: stat=0x10 err=0x01 lsb=0x14 msb=0xeb
ata0-slave:  stat=0x00 err=0x01 lsb=0x14 msb=0xeb
ata0: reset tp2 mask=03 stat0=10 stat1=00 devices=0xc<ATAPI_SLAVE,ATAPI_MASTER>
ata0: at 0x1f0 irq 14 on atapci0 
ata0: [MPSAFE]
ata1: reset tp1 mask=03 ostat0=20 ostat1=30 
ata1-master: stat=0x20 err=0x20 lsb=0x20 msb=0x20
ata1-slave:  stat=0x30 err=0x30 lsb=0x30 msb=0x30
ata1: reset tp2 mask=03 stat0=20 stat1=30 devices=0x0
ata1: at 0x170 irq 15 on atapci0
ata1: [MPSAFE]

ata0-slave: pio=0x0c wdma=0x22 udma=0x44 cable=80pin
ata0-master: pio=0x0c wdma=0x22 udma=0x42 cable=40pin
ata0-master: setting PIO4 on VIA 8235 chip
ata0-slave: setting PIO4 on VIA 8235 chip
acd0: <ASUS CD-S400/V1.10> CDROM drive at ata0 as master
acd0: read 1031KB/s (6875KB/s), 128KB buffer, PIO4
acd0: Reads: CDR, CDRW, CDDA stream, packet
acd0: Writes:
acd0: Audio: play, 255 volume levels
acd0: Mechanism: ejectable tray, unlocked
acd0: Medium: CD-ROM 120mm audio disc
acd1: <Pioneer DVD-ROM ATAPIModel DVD-120/1.23> DVDROM drive at ata0 as slave
acd1: read 6875KB/s (6875KB/s), 256KB buffer, PIO4
acd1: Reads: CDR, CDRW, CDDA stream, DVDROM, DVDR, packet
acd1: Writes:
acd1: Audio: play, 256 volume levels
acd1: Mechanism: ejectable tray, unlocked
acd1: Medium: no/blank disc

This is the panic I get:

acd1: WARNING - MODE_SENSE_BIG read data overrun 65438 > 34

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0xc321f2e0
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc0461df6
stack pointer           = 0x10:0xd5597cac
frame pointer           = 0x10:0xd5597ccc
code segment            = base 0x0, limit 0xffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 24 (irq14: ata0)
trap number             = 12
panic : page fault
at line 815 in file /usr/src/sys/i386/i386/trap.c


When the system hangs I normally see something like.

acd1: WARNING - READ_TOC read data overrun 65438 > 20

let me know if you want any other information.

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Totally Holistic Enterprises Internet|                      | Andrew Milton
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