From owner-cvs-all  Tue Nov 14 12: 0:23 2000
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From: Daniel Eischen <deischen@FreeBSD.org>
Date: Tue, 14 Nov 2000 12:00:20 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/lib/libc_r/uthread pthread_private.h uthread_init.c
         uthread_kern.c uthread_sig.c
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deischen    2000/11/14 12:00:20 PST

  Modified files:
    lib/libc_r/uthread   pthread_private.h uthread_init.c 
                         uthread_kern.c uthread_sig.c 
  Log:
  When entering the scheduler from the signal handler, tell
  the kernel to (re)use the alternate signal stack.  In this
  case, we don't return normally from the signal handler,
  so the kernel still thinks we are using the signal stack.
  The fixes a nasty bug where the signal handler can start
  fiddling with the stack of a thread while the handler is
  actually running on the same stack.
  
  MFC candidate
  
  Revision  Changes    Path
  1.48      +5 -2      src/lib/libc_r/uthread/pthread_private.h
  1.27      +10 -7     src/lib/libc_r/uthread/uthread_init.c
  1.34      +25 -12    src/lib/libc_r/uthread/uthread_kern.c
  1.31      +2 -2      src/lib/libc_r/uthread/uthread_sig.c



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