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Full Discussion: Defunct Processes
Operating Systems AIX Defunct Processes Post 302234432 by avronius on Tuesday 9th of September 2008 04:31:15 PM
Old 09-09-2008
I have seen this type of problem after a reboot in the following circumstances (granted, it was Solaris, but the principle is the same):
1. Server is booted
2. A new filesystem is mounted, but not updated in vfstab
3. A utility to do some task (like cleanup) is called from the new filesystem
4. Server is rebooted
5. The filesystem is not mounted at boot time
6. The utility is called to perform the cleanup task - but there's nothing there.
7. The application crashes quietly, you end up with defunct processes.
 

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RESIZE_LFS(8)						    BSD System Manager's Manual 					     RESIZE_LFS(8)

NAME
resize_lfs -- resize a mounted log-structured filesystem SYNOPSIS
resize_lfs [-v] [-s new-size] mounted-file-system DESCRIPTION
resize_lfs grows or shrinks a mounted log-structured filesystem to the specified size. mounted-file-system is the name of the filesystem to be resized, and new-size is the desired new filesystem size, in sectors. If new-size is not specified, resize_lfs will default to the cur- rent size of the partition containing the filesystem in question. When growing, the partition must be large enough to contain a filesystem of the specified size; when shrinking, resize_lfs must first ``clean'' the segments that will be invalid when the filesystem is shrunk. If this cleaning process results in these segments becoming redirtied, this indicates that the given new size is not large enough to contain the existing filesystem data, and resize_lfs will return an error. EXAMPLES
To resize the file system mounted at /home to 32576 sectors: resize_lfs -s 32576 /home SEE ALSO
fsck_lfs(8), lfs_cleanerd(8), newfs_lfs(8) HISTORY
The resize_lfs command first appeared in NetBSD 3.0. AUTHORS
Konrad Schroder <perseant@NetBSD.org> BUGS
resize_lfs should be able to resize an unmounted filesystem as well. BSD
September 4, 2006 BSD
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