Date: 23 Mar 2001 17:16:17 -0000 From: davidt@yadt.co.uk To: FreeBSD-gnats-submit@freebsd.org Subject: kern/26031: 4.3-BETA crashes on 'mount /dev/acd0c /mnt/cd' Message-ID: <20010323171617.40408.qmail@gattaca.yadt.co.uk>
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>Number: 26031
>Category: kern
>Synopsis: 4.3-BETA crashes on 'mount /dev/acd0c /mnt/cd'
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Mar 23 09:20:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator: David Taylor
>Release: FreeBSD 4.3-BETA i386
>Organization:
>Environment:
System: FreeBSD gattaca.yadt.co.uk 4.3-BETA FreeBSD 4.3-BETA #3: Tue Mar 6 18:39:44 GMT 2001 davidt@gattaca.yadt.co.uk:/usr/obj/usr/src/sys/GATTACA i386
ad0: 32634MB <IBM-DPTA-373420> [66305/16/63] at ata0-master UDMA33
acd0: DVD-ROM <HITACHI DVD-ROM GD-5000> at ata1-master using WDMA2
acd1: CD-RW <SONY CD-RW CRX140E> at ata1-slave using UDMA33
Dell Dimension XPS T-800r PIII-800, 256Mb RAM...
I'm not sure what else is relevant...
>Description:
The following command works fine, so I know the CD-ROM drive/CD/etc are OK
mount -t cd9660 /dev/acd0c /mnt/cd
However,
mount /dev/acd0c /mnt/cd # Note: no -t cd9660
causes the following panic:
IdlePTD 3657728
initial pcb at 2e2a00
panicstr: vm_fault: fault on nofault entry, addr: c7c11000
panic messages:
---
panic: vm_fault: fault on nofault entry, addr: c7c11000
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:469
#1 0xc014af55 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:309
#2 0xc014b2ed in panic (
fmt=0xc027a080 "vm_fault: fault on nofault entry, addr: %lx")
at /usr/src/sys/kern/kern_shutdown.c:556
#3 0xc01e39c6 in vm_fault (map=0xc02eb30c, vaddr=3357331456,
fault_type=3 '\003', fault_flags=0) at /usr/src/sys/vm/vm_fault.c:240
#4 0xc0247602 in trap_pfault (frame=0xcd718f10, usermode=0, eva=3357331456)
at /usr/src/sys/i386/i386/trap.c:833
#5 0xc02471ef in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = -1072365552,
tf_edi = -937635840, tf_esi = 2352, tf_ebp = -848195744,
tf_isp = -848195780, tf_ebx = -1054105728, tf_edx = 368, tf_ecx = 304,
tf_eax = -1058161152, tf_trapno = 12, tf_err = 2,
tf_eip = -1071495692, tf_cs = 8, tf_eflags = 2163202,
tf_esp = -1054105728, tf_ss = -1057923520}) at
at /usr/src/sys/i386/i386/trap.c:443
#6 0xc02245f4 in atapi_read (request=0xc12b9f80, length=2352)
at machine/cpufunc.h:222
#7 0xc02240b2 in atapi_interrupt (request=0xc12b9f80)
at /usr/src/sys/dev/ata/atapi-all.c:385
#8 0xc021dae1 in ata_intr (data=0xc0edbe00)
at /usr/src/sys/dev/ata/ata-all.c:1150
I've also seen:
#6 0xc02245f4 in atapi_read (request=0xc148b480, length=2352)
at machine/cpufunc.h:222
#7 0xc02240b2 in atapi_interrupt (request=0xc148b480)
at /usr/src/sys/dev/ata/atapi-all.c:385
#8 0xc021dae1 in ata_intr (data=0xc0edbe00)
at /usr/src/sys/dev/ata/ata-all.c:1150
and
#12 0xc02245f4 in atapi_read (request=0xc122d380, length=2352)
at machine/cpufunc.h:222
#13 0xc02240b2 in atapi_interrupt (request=0xc122d380)
at /usr/src/sys/dev/ata/atapi-all.c:385
#14 0xc021dae1 in ata_intr (data=0xc0edbe00)
at /usr/src/sys/dev/ata/ata-all.c:1150
which all seem quite similar... i've still got a few of the crashdumps
around if anyone needs more information from them...
This happens (AFAICS) on every CD I attempt to mount (audio CD, data CD,
CD-R, CD-RW, etc)
When I was originally trying to mount a CD-RW disk, I also saw messages
like:
"kernel: ata1-master: too many segments in DMA table"
I'm not sure if that's because it was a CD-RW which FreeBSD didn't
understand, or if it's related to the bug that caused the panic..
'acd0: READ_CD commmand timeout - resetting' appeared on the console each
time after the panic, but just before the dump.
>How-To-Repeat:
Insert a CD into your first CD-ROM drive
Try to do mount /dev/acd0c /mnt
FreeBSD should then crash... although I'm sure there must be
something unique about my environment..
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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