Date: Fri, 12 May 2017 15:35:53 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 219228] EINTR on thread with full signal mask. Message-ID: <bug-219228-8-KmEb3Jochb@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-219228-8@https.bugs.freebsd.org/bugzilla/> References: <bug-219228-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219228 --- Comment #5 from commit-hook@freebsd.org --- A commit references this bug: Author: kib Date: Fri May 12 15:35:00 UTC 2017 New revision: 318243 URL: https://svnweb.freebsd.org/changeset/base/318243 Log: Do not wake up sleeping thread in reschedule_signals() if the signal is blocked. The spurious wakeup might result in spurious EINTR. The reschedule_signals() function is called when the calling thread has the signal mask changed. For each newly blocked signal, we try to find a thread which might have the signal not blocked. If no such thread exists, sigtd() returns random thread, which must not be waken up. I decided that re-checking, as suggested by PR submitter, is more reasonable change than to change sigtd() interface, due to other uses of sigtd(). signotify() already performs this check. Submitted by: Duane <parakleta@darkreality.org> PR: 219228 Sponsored by: The FreeBSD Foundation MFC after: 1 week Changes: head/sys/kern/kern_sig.c --=20 You are receiving this mail because: You are the assignee for the bug.=
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