ATA panic PR
Alex K
lesha at intercaf.ru
Wed Jun 30 00:45:16 PDT 2004
Hello, everyone!
I have submitted a PR today.
Thought I should CC it here.
ATA panics immediately on boot if running in DMA mode (which is default)
With hw.ata.ata_dma="0" in /boot/loader.conf everything works fine, but
is terribly slow. DMA worked fine with 5.2.1-RELEASE.
# uname -a
FreeBSD urri.intercaf.ru 5.2-CURRENT FreeBSD 5.2-CURRENT #1: Wed Jun 30
10:36:24 MSD 2004 urri at urri.intercaf.ru:/usr/obj/usr/src/sys/URRI i386
It panics with GENERIC kernel too.
atapci0: <SiS 961 UDMA100 controller> port
0x110b-0x111a,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 2.5 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata0-master: DMA limited to UDMA33, non-ATA66 cable or device
ad0: 19077MB <IC25N020ATMR04-0> [38760/16/63] at ata0-master UDMA33
ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=39070017
ad0: DMA limited to UDMA33, non-ATA66 cable or device
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x74
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc050f615
stack pointer = 0x10:0xc7683c48
frame pointer = 0x10:0xc7683c4c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 5 (taskqueue)
trap number = 12
panic: page fault
syncing disks, buffers remaining...
done
Uptime: 6s
Cheers,
AL.
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