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Merge pull request #22448 from poettering/coredump-raise-sizes

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coredump: raise limits
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Yu Watanabe 2022-02-09 01:23:07 +09:00 committed by GitHub
commit 5573ed2230
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2 changed files with 13 additions and 5 deletions
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8
man/coredump.conf.xml
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@ -85,7 +85,8 @@
<listitem><para>The maximum size in bytes of a core which will be processed. Core dumps exceeding
this size may be stored, but the backtrace will not be generated. Like other sizes in this same
config file, the usual suffixes to the base of 1024 are allowed (B, K, M, G, T, P, and E).</para>
config file, the usual suffixes to the base of 1024 are allowed (B, K, M, G, T, P, and E). Defaults
to 1G on 32bit systems, 32G on 64bit systems.</para>
<para>Setting <varname>Storage=none</varname> and <varname>ProcessSizeMax=0</varname>
disables all coredump handling except for a log entry.</para>
@ -96,8 +97,9 @@
<term><varname>ExternalSizeMax=</varname></term>
<term><varname>JournalSizeMax=</varname></term>
<listitem><para>The maximum (compressed or uncompressed) size in bytes of a core to be saved. Unit
suffixes are allowed just as in <option>ProcessSizeMax=</option>.</para></listitem>
<listitem><para>The maximum (compressed or uncompressed) size in bytes of a core to be saved in
separate files on disk (default: 1G on 32bit, 32G on 64bit systems) or in the journal (default:
10M). Unit suffixes are allowed just as in <option>ProcessSizeMax=</option>.</para></listitem>
<para><varname>ExternalSizeMax=infinity</varname> sets the core size to unlimited.</para>
</varlistentry>

10
src/coredump/coredump.c
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@ -48,8 +48,14 @@
#include "uid-alloc-range.h"
#include "user-util.h"
/* The maximum size up to which we process coredumps */
#define PROCESS_SIZE_MAX ((uint64_t) (2LLU*1024LLU*1024LLU*1024LLU))
/* The maximum size up to which we process coredumps. We use 1G on 32bit systems, and 32G on 64bit systems */
#if __SIZEOF_POINTER__ == 4
#define PROCESS_SIZE_MAX ((uint64_t) (1LLU*1024LLU*1024LLU*1024LLU))
#elif __SIZEOF_POINTER__ == 8
#define PROCESS_SIZE_MAX ((uint64_t) (32LLU*1024LLU*1024LLU*1024LLU))
#else
#error "Unexpected pointer size"
#endif
/* The maximum size up to which we leave the coredump around on disk */
#define EXTERNAL_SIZE_MAX PROCESS_SIZE_MAX