upcount_dec discovers a miscount and panics (Doc ID 2197540.1)

Last updated on OCTOBER 26, 2016

Applies to:

Solaris Operating System - Version 10 3/05 to 10 1/13 U11 [Release 10.0]
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)

Symptoms

The panic string and the stack will look similar to this:

panic[cpu37]/thread=3002f5afb20: decr_upcount-off the end

000002a1095b57f0 genunix:freeproc+78 (257e, 0, 0, 0, 602442c0690, 602442c0690)
%l0-3: 0000000000000000 0000000000000000 0000000019387bd0 00000000428fda53
%l4-7: 000000000000000f 0000000000000000 000006028f36a018 0000000001a20c00
000002a1095b58a0 genunix:waitid+210 (1, 6028f36a0d8, 0, 40, 7, 1)
%l0-3: 0000000000000000 0000000001a21870 0000000000000000 0000000000000002
%l4-7: 0000000000000000 0000000000000001 000006028f36ac80 00000602442c0690
000002a1095b5970 genunix:waitsys32+10 (7, 0, ffbfef10, 43, 0, 0)
%l0-3: 0000000000000000 0000000000000000 00000000d3f60000 000000000000d3f6
%l4-7: 0000000000000001 0000000000000000 0000000000000000 0000000000000000

Cause

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