Problems with Solaris patch 103640-32 :-??

Has anybody problems with patch 103640-32 for Solaris 2.5.1?.

I've just updated my old Netra to patch 103640-32 (kernel), and reboot.
Squid doesn´t work anymore.

After a lot of trial&error, I've downloaded the last squid source code
*AND* compile it to do not use async-io, since threads seems to
malfunction in post 103640-32 instalation.

Output from "truss":

[...]
mprotect(0xEF20C000, 8192, PROT_NONE) = 0
mprotect(0xEF30E000, 8192, PROT_NONE) = 0
lwp_create(0xEFFFF298, 0x0100, 0xEF40FE14) = 2
lwp_create(0xEFFFF298, 0x0100, 0xEF40FE14) = -276894492
sigaction(SIGWAITING, 0xEF4E6710, 0x00000000) = 0
lwp_self() = 1
    Incurred fault #6, FLTBOUNDS %pc = 0xEF7CA154
      siginfo: SIGSEGV SEGV_MAPERR addr=0xEF7FE000
    Received signal #11, SIGSEGV [caught]
      siginfo: SIGSEGV SEGV_MAPERR addr=0xEF7FE000
        *** process killed ***

Without thread, squid runs smootly.

-- 
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