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Subject2.2-final: Problem with ATAPI CDROM directory listings
Date
Hello There

I have a problem with corrupted CDROM directory listings using 2.2-final and
large directories (for example the RPMS directory on a RH 5.2 CD.)

BUG Report Below:

[1.] One line summary of the problem:
Corruption of retrieval of large directory listing from CD-ROM drive. (Large
directory example being RPMS directory on a RH 5.2 CD.)

[2.] Full description of the problem/report:

When 'ls'ing or using 'mc' to view a directory, output is truncated and
corrupted and syslog out is as follows:

Jan 25 17:52:26 leo kernel: VFS: Disk change detected on device ide1(22,0)
Jan 25 17:52:26 leo kernel: ISO 9660 Extensions: RRIP_1991A
Jan 25 17:52:55 leo kernel: next_offset (806) > bufsize (800)
[3.] Keywords (i.e., modules, networking, kernel):
[4.] Kernel version (from /proc/version):
Linux version 2.2.0-final (root@leo.zoo.co.za) (gcc version 2.7.2.3) #6 Thu
Jan 21 20:44:54 SAST 1999

[5.] Output of Oops.. message (if applicable) with symbolic information
resolved (see Documentation/oops-tracing.txt)

Not Applicable

[6.] A small shell script or example program which triggers the
problem (if possible)

Not Applicable

[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
Linux leo.zoo.co.za 2.2.0-final #6 Thu Jan 21 20:44:54 SAST 1999 i586
unknown
Kernel modules found
Gnu C 2.7.2.3
Binutils 2.9.1.0.15
Linux C Library 2.0.7
Dynamic linker ldd (GNU libc) 2.0.7
Linux C++ Library 2.8.0
Procps 1.2.9
Mount 2.8a
Net-tools (1998-12-05)
Kbd 0.96
Sh-utils 1.16

[7.2.] Processor information (from /proc/cpuinfo):

processor : 0
vendor_id : GenuineIntel
cpu family : 5
model : 4
model name : Pentium MMX
stepping : 3
cpu MHz : 200.457059
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : yes
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 mmx
bogomips : 399.77

[7.3.] Module information (from /proc/modules):

opl3 10264 0
sb 30764 0
uart401 5628 0 [sb]
sound 55156 0 [opl3 sb uart401]
soundcore 2192 6 [sb sound]

[7.4.] SCSI information (from /proc/scsi/scsi)

Not Applicable

[7.5.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):

/proc/ide/hdc/model:
SAMSUNG SCR-2430

/proc/ide/hdc/driver:
ide-cdrom version 4.52

/proc/ide/hdc/settings:
name value min max mode
---- ----- --- --- ----
breada_readahead 4 0 127 rw
dsc_overlap 0 0 1 rw
file_readahead 72 0 2097151 rw
io_32bit 0 0 3 rw
keepsettings 0 0 1 rw
max_kb_per_request 122 1 127 rw
nice1 1 0 1 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 0 0 1 rw
using_dma 1 0 1 rw
[X.] Other notes, patches, fixes, workarounds:

Increase Bufsize?

Regards
Daniel


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