01-21-2009
Long shot, assuming you still have the core dump:
Find out which program failed.
file core
Look for error message towards the end of the core dump. This method does not always work. A debugger is better!
strings core | tail -100
Other ideas:
If it is a cron, check root mail for messages.
Check system logs and hardware logs for error messages at the time of failure.
Try "fuser" on the tape device in case something is still using it.
Try the find on its own with output redirected to /dev/null in case it is failing on a bad file and killing the pipeline.
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cpio(4) Kernel Interfaces Manual cpio(4)
NAME
cpio - Format of cpio archive
DESCRIPTION
The header structure, when the -c option of cpio(1) is not used, is: struct {
short h_magic,
h_dev;
ushort h_ino,
h_mode,
h_uid,
h_gid;
short h_nlink,
h_rdev
h_mtime[2],
h_namesize,
h_filesize[2]'
char h_name[h_namesize rounded to word]; } Hdr; When the -c option is used, the header information is described by:
sscanf(Chdr,"%6o%6o%6o%6o%6o%6o%6o%6o%11lo%6o%11lo%s",
&Hdr.h_magic, &Hdr.h_dev, &Hdr.h_ino, &Hdr.h_mode,
&Hdr.h_uid, &Hdr.h_gid, &Hdr.h_nlink, &Hdr.h_rdev,
&Longtime, &Hdr.h_namesize,&Longfile,Hdr.h_name); The Longtime and Longfile are equivalent to Hdr.h_mtime and Hdr.h_filesize, respec-
tively. The contents of each file are recorded in an element of the array of varying length structures, archive, together with other items
describing the file. Every instance of h_magic contains the constant 070707 (octal). The items h_dev through h_mtime have meanings
explained in stat(2). The length of the null-terminated path name h_name, including the null byte, is given by h_namesize.
The last record of the archive always contains the name TRAILER!!! Special files, directories, and the trailer are recorded with h_file-
size equal to zero.
RELATED INFORMATION
cpio(1), find(1), stat(2) delim off
cpio(4)