Re: mount hfs on SCSI cdrom = segfault

[Nehal <nehal@canada.com>]

> i have a hybrid cd (both HFS, ISO9660) , i have two CD drives,
> one IDE CD-Rom (actima 32x), and one SCSI CD-burner (yamaha 6416)
> on an advansys cfg-510 ISA scsi card
>
> when i try to mount on IDE using hfs with:
>
>    mount -v -r -t hfs /dev/hdc /cdrom
>
> it works fine, yet when i try on scsi with:
>
>    mount -v -r -t hfs /dev/scd0 /cdrom
>
> i get a "Segmentation fault" error, no more output given,
> it also locks the drive, and sometimes i can use the
> 'eject' command to eject it, sometimes i cant and i gotta reboot
>
> note: when i try to mount the cd using regular iso9660 fs, it
> works perfectly on both cd drives,
> also i have tried 2 hybrid cd's, both times i have trouble mounting
> hfs on the scsi drive only
>
> Nehal 

ok i updated firmware of writer from 1.0c to 1.0d with no help,
but i found when i do 'dmesg' after mounting i get this error:
========
kernel BUG at buffer.c:2518!
invalid operand: 0000
CPU:    0
EIP:    0010:[<c013c329>]    Not tainted
EFLAGS: 00013206
eax: 000007ff   ebx: 00000b00   ecx: 00000800   edx: c11ee640
esi: 00000b00   edi: 00000200   ebp: 00000b00   esp: c3425db4
ds: 0018   es: 0018   ss: 0018
Process mount (pid: 514, stackpage=c3425000)
Stack: c6d0d760 c3425e48 c0257a59 c7f1c574 00000000 00000b00 00000200 
00000000
       c0139f66 00000b00 00000000 00000200 00000000 00000001 c7568400 
00000000
       c013a1e0 00000b00 00000000 00000200 00000000 c019280a 00000b00 
00000000
Call Trace:    [<c0257a59>] [<c0139f66>] [<c013a1e0>] [<c019280a>] 
[<c019188a>]
  [<c01925ff>] [<c0285c30>] [<c013cdca>] [<c013e908>] [<c013d64b>] 
[<c013cd3c>]
  [<c013d9a1>] [<c014fcf3>] [<c0150020>] [<c014fe69>] [<c0150441>] 
[<c01090ff>]

Code: 0f 0b d6 09 9a 2b 33 c0 8d 87 00 fe ff ff 3d 00 0e 00 00 76
 
root@Nehal:~#
========
then when i try it again it doesnt give this message, it locks up my drive

can someone please help debug this problem,
thx, Nehal