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Top Forums UNIX for Advanced & Expert Users Questions regarding a PANIC situation Post 302193078 by Perderabo on Thursday 8th of May 2008 12:18:47 PM
Old 05-08-2008
It's hard to talk in general terms. You should post the specifics of your error messages. Crashing the kernel via ftp would be possible on most versions of unix provided that the ftp process was running as root. As one example, files such as /dev/mem or /dev/kmem may exist that give root the power to overwrite memory. Now do:

get /remote/phonebook.txt /dev/kmem

Most commands output to a file and thus any command invoked by a malicious or clueless root user might crash the system. Even:
echo hello world > /dev/kmem
might do it. That said, ftp would not be my first suspect. It is usually a kernel bug with hardware being a distant second. There are usually tools of some sort to analyse the system dump and determine the cause. And many times the particular panic message is a strong clue.
 

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Log::Report::Util(3pm)					User Contributed Perl Documentation				    Log::Report::Util(3pm)

NAME
Log::Report::Util - helpful routines to Log::Report INHERITANCE
Log::Report::Util is a Exporter DESCRIPTION
This module collects a few functions and definitions which are shared between different components in the Log::Report infrastructure. FUNCTIONS
escape_chars(STRING) Replace all escape characters into their readable counterpart. For instance, a new-line is replaced by backslash-n. expand_reasons(REASONS) Returns a sub-set of all existing message reason labels, based on the content REASONS string. The following rules apply: REASONS = BLOCK [ ',' BLOCKS] BLOCK = '-' TO | FROM '-' TO | ONE | SOURCE FROM,TO,ONE = 'TRACE' | 'ASSERT' | ,,, | 'PANIC' SOURCE = 'USER' | 'PROGRAM' | 'SYSTEM' | 'ALL' The SOURCE specification group all reasons which are usually related to the problem: report about problems caused by the user, reported by the program, or with system interaction. example: of expended REASONS WARNING-FAULT # == WARNING,MISTAKE,ERROR,FAULT -INFO # == TRACE-INFO ALERT- # == ALERT,FAILURE,PANIC USER # == MISTAKE,ERROR ALL # == TRACE-PANIC parse_locale(STRING) Decompose a locale string. For simplicity of the caller's code, the capatization of the returned fields is standardized to the preferred, although the match is case- insensitive as required by the RFC. The territory in returned in capitals (ISO3166), the language is lower-case (ISO639), the script as upper-case first, the character-set as lower-case, and the modifier and variant unchanged. In LIST context, four elements are returned: language, territory, character-set (codeset), and modifier. Those four are important for the usual unix translationg infrastructure. Only the "country" is obligatory, the others can be "undef". It may also return "C" and "POSIX". In SCALAR context, a HASH is returned which can contain more information: language, script, territory, variant, codeset, and modifiers. The variant (RFC3066 is probably never used) unescape_chars(STRING) Replace all backslash-something escapes by their escape character. For instance, backslash-t is replaced by a tab character. SYNOPSYS
my ($language, $territory, $charset, $modifier) = parse_locale 'nl_BE.utf-8@home'; my @take = expand_reasons 'INFO-ERROR,PANIC'; SEE ALSO
This module is part of Log-Report distribution version 0.94, built on August 23, 2011. Website: http://perl.overmeer.net/log-report/ LICENSE
Copyrights 2007-2011 by Mark Overmeer. For other contributors see ChangeLog. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html perl v5.14.2 2011-08-23 Log::Report::Util(3pm)
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