Re: PR/49816 CVS commit: src/libexec/ld.elf_so

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

The following reply was made to PR lib/49816; it has been noted by GNATS.

From: Joerg Sonnenberger <joerg%britannica.bec.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: PR/49816 CVS commit: src/libexec/ld.elf_so
Date: Tue, 7 Apr 2015 13:03:14 +0200

 On Tue, Apr 07, 2015 at 01:55:01AM +0000, YAMAMOTO Takashi wrote:
 >  the intel's manual says:  (8.2.2)
 >  
 >      Reads may be reordered with older writes to different locations
 >      but not with older writes to the same location.
 >  
 >  see also 8.2.3.4 Example 8-3.
 >  
 >  isn't it the case for _rtld_exclusive_exit?
 
 I don't think that's relevant, this is about global visiblity of
 changes. E.g. if another thread tries to get the mutex, it must see all
 changes from the current thread when successfully acquired the mutex.
 
 Joerg