Date: Fri, 09 Feb 2018 14:33:39 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 225584] Various compile process hang on Ryzen, but not on Intel Message-ID: <bug-225584-8-XxgzkrNLMP@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-225584-8@https.bugs.freebsd.org/bugzilla/> References: <bug-225584-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225584 --- Comment #69 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to mike from comment #68) Please try this, it should work and then it would be the last thing I am as= king to test. diff --git a/lib/libc/stdio/_flock_stub.c b/lib/libc/stdio/_flock_stub.c index 069ed64c4e9..816e958b1f0 100644 --- a/lib/libc/stdio/_flock_stub.c +++ b/lib/libc/stdio/_flock_stub.c @@ -39,12 +39,16 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <sys/types.h> +#include <machine/cpufunc.h> #include "namespace.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #include <pthread.h> #include "un-namespace.h" +#include <signal.h> +#include <unistd.h> #include "local.h" @@ -112,11 +116,17 @@ void _funlockfile(FILE *fp) { pthread_t curthread =3D _pthread_self(); + pthread_t owner; /* * Check if this file is owned by the current thread: */ - if (fp->_fl_owner =3D=3D curthread) { + owner =3D fp->_fl_owner; + if (owner =3D=3D NULL) { + mfence(); + owner =3D fp->_fl_owner; + } + if (owner =3D=3D curthread) { /* * Check if this thread has locked the FILE * more than once: @@ -138,4 +148,11 @@ _funlockfile(FILE *fp) _pthread_mutex_unlock(&fp->_fl_mutex); } } + else { + char x[120]; + snprintf(x, sizeof(x), "funlockfile %p %p %p %p\n", fp, + curthread, owner, fp->_fl_owner); + write(2, x, strlen(x)); + raise(SIGBUS); + } } --=20 You are receiving this mail because: You are the assignee for the bug.=
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