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Subject: kern/28402: kernel panic caused by softupdates (may be)
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>Number:         28402
>Category:       kern
>Synopsis:       kernel panic caused by softupdates (may be)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jun 25 02:40:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Iasen Kostoff
>Release:        FreeBSD 4.3-STABLE i386
>Organization:
OTEL.net
>Environment:
System: FreeBSD mail1.otel.net 4.3-STABLE FreeBSD 4.3-STABLE #0: Fri Jun 22 22:28:40 EEST 2001     root@mail1.otel.net:/usr/src/sys/compile/ML1-SRV  i386
	
>Description:
    Doing tar -zxf about_5MB_file.tgz; rm -rf all_extracted cause kernel panic
    on a tunefs -n enable file system (tmp in this case). Some times even
    tar -xzf file cause this panic.
    Here are the setting on /tmp:
    
    tunefs -p /tmp
    tunefs: soft updates:  (-n)                                enabled
    tunefs: maximum contiguous block count: (-a)               15
    tunefs: rotational delay between contiguous blocks: (-d)   0 ms
    tunefs: maximum blocks per file in a cylinder group: (-e)  2048
    tunefs: minimum percentage of free space: (-m)             8%
    tunefs: optimization preference: (-o)                      time
    
>How-To-Repeat:
    tar -zxf about_5MB_file.tgz; rm -rf all_extracted (about 3-5 times)
    
>Fix:

    I'm too far away from FS :)
    
>Release-Note:
>Audit-Trail:
>Unformatted:

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