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> truss -p 6482
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000) (sleeping...)
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000) (sleeping...)
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000) (sleeping...)
/2:     pollsys(0xE517AD88, 1, 0xE517AE30, 0x00000000)  = 0
[...]

no manual page found. Please explain for Non-programmer.

> uname -a
SunOS toolbox048 5.10 Generic_139555-08 sun4v sparc SUNW,Sun-Blade-T6320
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2 Answers

pollsys is a private system call on which are built the documented poll, select and pselect libc functions.

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It means "poll system". It's checking a memory location in expectation of some data that might be there. When it doesn't find it, it sleeps and tries again later.

I can't tell any more than that from what you included.

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