Date: Tue, 19 Jun 2001 14:36:36 +0200 (CEST) From: Guenter Bartsch <bartscgr@studbox.uni-stuttgart.de> To: FreeBSD Hackers <freebsd-hackers@freebsd.org> Cc: xine-dev <xine-devel@lists.sourceforge.net> Subject: FreeBSD 4.3 pthread implementation and FPU code Message-ID: <Pine.LNX.4.33.0106191431510.28949-100000@goofy.disney.gb>
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Hi,
while trying to get xine 0.5 (xine.sf.net) to work on freebsd I ran into
this problem:
Thread has returned from sigreturn or longjmp
after some debugging I found that disabling this part of the MMX-detection
code:
asm ("pushfl\n\t"
"popl %0\n\t"
"movl %0,%1\n\t"
"xorl $0x200000,%0\n\t"
"pushl %0\n\t"
"popfl\n\t"
"pushfl\n\t"
"popl %0"
: "=a" (eax),
"=b" (ebx)
:
: "cc");
solved the problem. So, I was wondering if there's any known problem about
FPU code and freebsd's pthread implementation, is there maybe a problem
with fpu-registers/status that is not being safed on context-switching?
Any comments on this would be appreciated.
Cheers,
Guenter
--
time is a funny concept
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