Date: Wed, 30 Jun 2004 07:36:05 GMT From: Alexei Khalimov <lesha@intercaf.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/68502: ATA panics in UDMA33 mode (worked OK in 5.2.1-R) Message-ID: <200406300736.i5U7a5qq044485@www.freebsd.org> Resent-Message-ID: <200406300740.i5U7eSlK088320@freefall.freebsd.org>
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>Number: 68502
>Category: i386
>Synopsis: ATA panics in UDMA33 mode (worked OK in 5.2.1-R)
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Jun 30 07:40:28 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Alexei Khalimov
>Release: 5.2-CURRENT (Jun 30)
>Organization:
InterCAF
>Environment:
FreeBSD urri.intercaf.ru 5.2-CURRENT FreeBSD 5.2-CURRENT #1: Wed Jun 30 10:36:24 MSD 2004 urri@urri.intercaf.ru:/usr/src/sys/i386/compile/URRI i386
>Description:
ATA driver panics system if run in DMA mode
hw.ata.ata_dma="0" works fine, but PIO4 is so slow.
Everything worked just fine with 5.2.1-RELEASE
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
>How-To-Repeat:
Install 5.2-CURRENT on loosy laptop with UDMA33 disk.
Boot and enjoy immediate panic.
>Fix:
Currently unknown.
>Release-Note:
>Audit-Trail:
>Unformatted:
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