GNU/Linux man pages
Livre :
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Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 4.8 |
i386 |
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dumpfilter(8) |
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dumpfilter − create a filtered dump file.
dumpfilter
[ −f ] [ −l dump_level ] [
−p ] [ −v ] oldvmcore
newvmcore
dumpfilter −V
dumpfilter reads data from an original vmcore file which is created by savecore(8) , and creates a filtered dump file. dumpfilter accepts only a vmcore file created with compressed dump. dumpfilter provides dump filtering feature that is almost same as partial dump feature by diskdump, and eliminates some pages that are not usually required for fault analysis from the original full dump so that it can create a smaller dump file with the full dump. The dump file which is created by dumpfilter should be analyzed by the crash(8) utility as well as the original vmcore file. dumpfilter returns 1 if it fails due to an error. Otherwise it returns 0.
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−f |
Overwrite an existing file. |
−l dump_level
Specify a dump level (default: 19). See the README of diskdumputils to learn the dump level.
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−p |
Display progress for creating a dump file. |
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−v |
Provide some verbose outputs. |
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−V |
Show version information and exit. |
savecore(8), diskdumpctl_proc(8), diskdumpctl_sysfs(8), diskdumpfmt(8), crash(8)
dumpfilter cannot eliminate free pages from the vmcore file. This point is the only difference between the dump filtering feature and the partial dump feature. For example, as for dumpfilter , a dump file created with dump level 17 is identical with one created with dump level 21.
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dumpfilter(8) | |