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Improve text describing /proc/sys/fs/mqueue/* files
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man5/proc.5
12
man5/proc.5
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@ -1063,9 +1063,12 @@ argument given to
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.BR mq_open (3).
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The default and minimum value for
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.I msg_max
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is 10; the upper limit is
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.IR "(131072 / sizeof(void\ *))"
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is 10; the upper limit is HARD_MAX:
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.IR "(131072\ /\ sizeof(void\ *))"
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(32768 on Linux/86).
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This limit is ignored for privileged processes
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.RB ( CAP_SYS_RESOURCE ),
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but the HARD_MAX ceiling is nevertheless imposed.
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.TP
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.I /proc/sys/fs/mqueue/msgsize_max
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This file can be used to view and change the ceiling on the
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@ -1078,10 +1081,15 @@ The default and minimum value for
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.I msgsize_max
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is 8192 bytes; the upper limit is INT_MAX
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(2147483647 on Linux/86).
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This limit is ignored for privileged processes
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.RB ( CAP_SYS_RESOURCE ).
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.TP
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.I /proc/sys/fs/mqueue/queues_max
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This file can be used to view and change the system-wide limit on the
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number of message queues that can be created.
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Only privileged processes
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.RB ( CAP_SYS_RESOURCE )
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can create new message queues once this limit has been reached.
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The default value for
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.I queues_max
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is 256; it can be changed to any value in the range 0 to INT_MAX.
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