Date: Tue, 7 Nov 2006 11:38:15 -0500 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-emulation@FreeBSD.org Subject: Re: [PATCH]: possible fix for the fifoor problem Message-ID: <200611071138.16795.jkim@FreeBSD.org> In-Reply-To: <20061106174033.GA70360@stud.fit.vutbr.cz> References: <20061106174033.GA70360@stud.fit.vutbr.cz>
next in thread | previous in thread | raw e-mail | index | archive | help
On Monday 06 November 2006 12:40 pm, Divacky Roman wrote: > pls test > www.stud.fit.vutbr.cz/~xdivac02/linux-fifoor.patch > > and tell me if that helps you with fifoor affected tests (dup05, > select03) This patch does not work nor fix the problem. In fact, I spent some time to tackle this problem. dup05 passes the test but when it attempts to clean up temporary directory, the fifo is opened with O_RDONLY in blocking mode. That is why it is blocked forever because there is no writer for the fifo. Ironically, this is not LTP's fault, i.e., translate_path_major_minor() in linux_stats.c calls kern_open() with O_RDONLY in blocking mode. Whenever we use this function from linux_*stat*(), it is blocked forever. If you change the function to use (O_RDONLY | O_NONBLOCK), this test passes normally. FYI... Jung-uk Kim
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200611071138.16795.jkim>