4.3-BETA crash on 'mount /dev/acd0c /mnt'

2001-03-22 Thread David Taylor 

(using: 4.3-BETA FreeBSD 4.3-BETA #3: Tue Mar  6 18:39:44 GMT 2001)

mount -t cd9660 /dev/acd0c /mnt   #works ok

OTOH,

mount /dev/acd0c /mnt

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

also:

#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


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 just before the dump.

-- 
David Taylor
[EMAIL PROTECTED]

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Re: 4.3-BETA crash on 'mount /dev/acd0c /mnt'

2001-03-22 Thread Nate Dannenberg 

On Thu, 22 Mar 2001, David Taylor wrote:

> (using: 4.3-BETA FreeBSD 4.3-BETA #3: Tue Mar  6 18:39:44 GMT 2001)
>
> mount -t cd9660 /dev/acd0c /mnt   #works ok
>
> OTOH,
>
> mount /dev/acd0c /mnt
>
> causes the following panic:

I've also experienced problems mounting CD-ROM discs, to the extent that
if the bus is busy on one disc, the system will not error out and return a
"device busy" message or something else more appropriate.  Instead the
command and it's controlling console/terminal/shell/whatever hangs until
the other device is finished.

I have yet to panic the kernel doing this, though.

> panicstr: vm_fault: fault on nofault entry, addr: c7c11000

(not to downplay this...but isn't that like masking an NMI? :-)

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Re: 4.3-BETA crash on 'mount /dev/acd0c /mnt'

2001-03-22 Thread Kent Stewart 



Nate Dannenberg wrote:
> 
> On Thu, 22 Mar 2001, David Taylor wrote:
> 
> > (using: 4.3-BETA FreeBSD 4.3-BETA #3: Tue Mar  6 18:39:44 GMT 2001)
> >
> > mount -t cd9660 /dev/acd0c /mnt   #works ok
> >
> > OTOH,
> >
> > mount /dev/acd0c /mnt
> >
> > causes the following panic:
> 
> I've also experienced problems mounting CD-ROM discs, to the extent that
> if the bus is busy on one disc, the system will not error out and return a
> "device busy" message or something else more appropriate.  Instead the
> command and it's controlling console/terminal/shell/whatever hangs until
> the other device is finished.
> 
> I have yet to panic the kernel doing this, though.

I just tried it and it didn't work. The mount complained about
incorrect super block. I had /dev/acd0c defined in my fstab as
mounting /cdrom. I tried mount /cdrom and it worked.

Kent

> 
> > panicstr: vm_fault: fault on nofault entry, addr: c7c11000
> 
> (not to downplay this...but isn't that like masking an NMI? :-)
> 
> --
>  /~~~___~\
> |  [EMAIL PROTECTED]  //Z@|___  |
> |  http://home.kscable.com/natedac |'(__ [_<  |
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-- 
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