I get a kernel oops while trying to read a SONY CDU33A device,
connected via a SoundBlaster 16 ISA card, with kernels 2.4.19-rc3 and 2.4.18
The platform is i586 classic, gcc 2.95.3
In /etc/modules.conf I have:
alias block-major-15 cdu31a
options cdu31a cdu31a_port=0x0230
so the driver can be loaded as a kernel module
----------------------------------------------
Command line:
air:~# mount /dev/sonycd /mnt -t iso9660
mount: block device /dev/sonycd is write-protected, mounting read-only
air:~# lsmod
Module Size Used by Not tainted
cdu31a 22912 1 (autoclean)
cdrom 26976 0 (autoclean) [cdu31a]
isofs 24704 1 (autoclean)
inflate_fs 17920 0 (autoclean) [isofs]
air:~# cd /cdrom
air:/cdrom# ls
0msvideo/ 302avi/ commdlg.dll* gbut256/ ngme.ini* setup.exe*
101avi/ 401avi/ eesc.dll* groft.win* ngmecl.exe*
301avi/ 501avi/ gbut16/ ngme.hlp* openanim.avi*
air:/cdrom# cp setup.exe ~
Unable to handle kernel paging request at virtual address c283f020
printing eip:
c2837025
.. blah blah
Code: f3 6c 8b 44 24 20 29 05 c4 a9 83 c2 01 05 70 ab 83 c2 83 3d
Segmentation fault
----------------------------------------------
ksymoops says:
ksymoops 2.4.5 on i586 2.4.19-rc3. Options used
-v /usr/src/linux/vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.19-rc3/ (default)
-m /usr/src/linux/System.map (default)
Unable to handle kernel paging request at virtual address c283f020
c2837025
*pde = 0106c067
Oops: 0002
CPU: 0
EIP: 0010:[<c2837025>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: c193c004 ebx: 00004000 ecx: ffffc800 edx: 00000232
esi: 00000000 edi: c283f020 ebp: c193c000 esp: c1843e60
ds: 0018 es: 0018 ss: 0018
Process cp (pid: 379, stackpage=c1843000)
Stack: 00000000 0007b095 00004000 c1843edc 00000000 c28372ab c193c000 00004000
00000020 00000000 00000000 c1843edc 00079d08 c1843ed8 00000020 c1842000
00000000 00004000 c283785a c193c000 00079d08 00000020 c1843edc c1843ed8
Call Trace: [<c28372ab>] [<c283785a>] [<c0120000>] [<c016f894>] [<c011647c>]
[<c013011e>] [<c0121060>] [<c01218cb>] [<c0121d2a>] [<c0121c00>] [<c012c696>]
[<c01086e3>]
Code: f3 6c 8b 44 24 20 29 05 c4 a9 83 c2 01 05 70 ab 83 c2 83 3d
>>EIP; c2837025 <[cdu31a]input_data+a9/e4> <=====
>>eax; c193c004 <_end+16e8170/25bf16c>
>>ebx; 00004000 Before first symbol
>>ecx; ffffc800 <END_OF_CODE+3d7c0e81/????>
>>edi; c283f020 <.bss.end+36a1/????>
>>ebp; c193c000 <_end+16e816c/25bf16c>
>>esp; c1843e60 <_end+15effcc/25bf16c>
Trace; c28372ab <[cdu31a]read_data_block+24b/3bc>
Trace; c283785a <[cdu31a]do_cdu31a_request+43e/5bc>
Trace; c0120000 <do_munmap+154/234>
Trace; c016f894 <generic_unplug_device+20/28>
Trace; c011647c <__run_task_queue+50/5c>
Trace; c013011e <block_sync_page+16/1c>
Trace; c0121060 <___wait_on_page+a8/d4>
Trace; c01218cb <do_generic_file_read+2cb/414>
Trace; c0121d2a <generic_file_read+7e/12c>
Trace; c0121c00 <file_read_actor+0/ac>
Trace; c012c696 <sys_read+96/f0>
Trace; c01086e3 <system_call+33/40>
Code; c2837025 <[cdu31a]input_data+a9/e4>
00000000 <_EIP>:
Code; c2837025 <[cdu31a]input_data+a9/e4> <=====
0: f3 6c repz insb (%dx),%es:(%edi) <=====
Code; c2837027 <[cdu31a]input_data+ab/e4>
2: 8b 44 24 20 mov 0x20(%esp,1),%eax
Code; c283702b <[cdu31a]input_data+af/e4>
6: 29 05 c4 a9 83 c2 sub %eax,0xc283a9c4
Code; c2837031 <[cdu31a]input_data+b5/e4>
c: 01 05 70 ab 83 c2 add %eax,0xc283ab70
Code; c2837037 <[cdu31a]input_data+bb/e4>
12: 83 3d 00 00 00 00 00 cmpl $0x0,0x0
----------------------------------------------
Finally, from /usr/src/linux/.config
#
# Old CD-ROM drivers (not SCSI, not IDE)
#
CONFIG_CD_NO_IDESCSI=y
# CONFIG_AZTCD is not set
# CONFIG_GSCD is not set
# CONFIG_SBPCD is not set
# CONFIG_MCD is not set
# CONFIG_MCDX is not set
# CONFIG_OPTCD is not set
# CONFIG_CM206 is not set
# CONFIG_SJCD is not set
# CONFIG_ISP16_CDI is not set
CONFIG_CDU31A=m
# CONFIG_CDU535 is not set
----------------------------------------------
Same behavior with CONFIG_CDU31A=y
BTW Audio CDs can be read without any problem.
Thank you.
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This archive was generated by hypermail 2b29 : Tue Jul 23 2002 - 22:00:42 EST