Date: Wed, 11 Mar 2009 22:00:03 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern sys_generic.c Message-ID: <200903112200.n2BM0AKQ051003@repoman.freebsd.org>
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rwatson 2009-03-11 22:00:03 UTC
FreeBSD src repository
Modified files:
sys/kern sys_generic.c
Log:
SVN rev 189708 on 2009-03-11 22:00:03Z by rwatson
When writing out updated pollfd records when returning from
poll(), only copy out the revents field, not the whole pollfd
structure. Otherwise, if the events field is updated
concurrently by another thread, that update may be lost.
This issue apparently causes problems for the JDK on FreeBSD,
which expects the Linux behavior of not updating all fields
(somewhat oddly, Solaris does not implement the required
behavior, but presumably our adaptation of the JDK is based
on the Linux port?).
MFC after: 2 weeks
PR: kern/130924
Submitted by: Kurt Miller <kurt @ intricatesoftware.com>
Discussed with: kib
Revision Changes Path
1.171 +22 -1 src/sys/kern/sys_generic.c
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