This message generated a parse failure. Raw output follows here. Please use 'back' to navigate. From devnull@lkml.org Thu Apr 25 19:16:11 2024 Received: from lml.valinux.com (postfix@lml.valinux.com [198.186.203.19]) by herbie.ucs.indiana.edu (8.9.3/8.9.3) with ESMTP id TAA24970 for ; Tue, 15 Feb 2000 19:49:01 -0500 (EST) Received: from vger.rutgers.edu (vger.rutgers.edu [128.6.190.2]) by lml.valinux.com (Postfix) with ESMTP id C1C615AC88; Tue, 15 Feb 2000 16:52:46 -0800 (PST) Received: by vger.rutgers.edu via listexpand id ; Tue, 15 Feb 2000 15:10:26 -0500 Received: by vger.rutgers.edu id ; Tue, 15 Feb 2000 14:44:59 -0500 Received: from mdm-143-176.dialup.intersurf.com ([216.115.143.176]:2050 "EHLO mdm-143-176.dialup.intersurf.com") by vger.rutgers.edu with ESMTP id ; Tue, 15 Feb 2000 14:43:29 -0500 Received: (from skaro@localhost) by mdm-143-176.dialup.intersurf.com (8.10.0.Beta12/8.6.9) id e1FNl8t00160 for linux-kernel@vger.rutgers.edu; Tue, 15 Feb 2000 17:47:08 -0600 Message-Id: X-Mailer: XFMail 1.4.4 on Linux X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit Mime-Version: 1.0 Date: Tue, 15 Feb 2000 17:47:07 -0600 (CST) Reply-To: Mark Orr From: Mark Orr To: linux-kernel@vger.rutgers.edu Subject: serial driver problem (as module) in 2.3.45 Sender: owner-linux-kernel@vger.rutgers.edu Precedence: bulk X-Loop: majordomo@vger.rutgers.edu X-Orcpt: rfc822;linux-kernel-outgoing-dig This may have been mentioned before...but what the heck... I've noticed that with kernel 2.3.45 and possibly .44, the serial driver is having a problem w/ loading+unloading when compiled as a module. The serial driver works -- but I use a tiny program called "modremove" (a daemon that essentially does a double "rmmod -a" every X seconds) and noticed it was taking up 99% of CPU cycles. It was trying to unload modules after I killed a modem PPP connection. I've tested it, and modremove isnt the problem. I was able to recreate the problem by just modprobe'ing and rmmod'ing the serial driver a few times from the command line. (looks like it works -- unloads properly -- the first time, but trips up on the 2nd or 3rd time) lsmod reports: root@darkstar:~# lsmod Module Size Used by serial 0 0 (uninitialized) At this point, the program trying to remove it is un-killable (even w/ repeated kill -9's) and top reports that it's taking up 99% CPU cycles. The serial driver is the only one I see doing this -- running PPP on my machine involves 4 modules, the other 3 load/unload properly. Sysinfo: Pentium 100, Intel Plato/Neptune II, 16Mb RAM+17Mb swap, Linux 2.3.45/46-1, glibc 2.1.3, binutils 2.9.5.0.27, gcc 2.95.2, modutils 2.3.9  --- Mark Orr markorr@intersurf.com ....not complaining, just reporting :) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/