From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <37D93727.49096696@chpc.utah.edu> Date: Fri, 10 Sep 1999 10:51:51 -0600 From: Lou Langholtz MIME-Version: 1.0 To: linuxppc-dev@lists.linuxppc.org Subject: [Fwd: Bug: 2.2.12 still hangs PPC after some PPP activity] Content-Type: multipart/mixed; boundary="------------BAF6FD94C4EF410F4C243E50" Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: This is a multi-part message in MIME format. --------------BAF6FD94C4EF410F4C243E50 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I just posted this yesturday to the newsgroup and someone pointed out that this list has discussed this problem before. After digging through the archives it seems this issue is still unresolved but that a lot of changes have been going into the 2.3 kernel that may improve this situation. In the meantime, I'm hoping then someone can point out what the difficulties are for fixing this and where I'd have to look. Alternatively, tell me where a patch already exists for this ;-) Thanks!!! --------------BAF6FD94C4EF410F4C243E50 Content-Type: message/rfc822 Content-Disposition: inline Delivered-To: ldl@eden.chpc.utah.edu Received: from mrelay.inscc.utah.edu (mrelay.inscc.utah.edu [155.101.3.60]) by eden.chpc.utah.edu (Delivermail) with ESMTP for id 99463105F1A; Thu, 9 Sep 1999 20:20:53 -0600 (MDT) Received: from mail.inscc.utah.edu (mail.inscc.utah.edu [155.101.3.59]) by mrelay.inscc.utah.edu (8.9.2/8.9.2) with ESMTP id UAA03468 for ; Thu, 9 Sep 1999 20:21:25 -0600 (MDT) Received: from mrelay.inscc.utah.edu (mrelay.inscc.utah.ed [155.101.3.60]) by mail.inscc.utah.edu with ESMTP id UAA07150 for ; Thu, 9 Sep 1999 20:20:28 -0600 (MDT) Received: from eden.chpc.utah.edu (eden.chpc.utah.edu [155.101.3.151]) by mrelay.inscc.utah.edu (8.9.2/8.9.2) with ESMTP id UAA03464 for ; Thu, 9 Sep 1999 20:21:24 -0600 (MDT) Received: from chpc.utah.edu (remote5.inscc.utah.edu [155.101.3.205]) by eden.chpc.utah.edu (Delivermail) with ESMTP id CFF9B105F19; Thu, 9 Sep 1999 20:20:49 -0600 (MDT) Sender: ldl@chpc.utah.edu Message-ID: <37D86B96.84E580A6@chpc.utah.edu> Date: Thu, 09 Sep 1999 20:23:18 -0600 From: Lou Langholtz X-Mailer: Mozilla 4.6 [en] (X11; I; Linux 2.2.12 ppc) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.os.linux.powerpc Cc: paulus@cs.anu.edu.au Subject: Bug: 2.2.12 still hangs PPC after some PPP activity Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hoping someone can help with this bug... I just recently compiled the 2.2.12 kernel on my LinuxPPC 1999 OS base and still find the system hanging sometimes after some PPP activity. It doesn't seem to happen as easily as earlier kernels but it's still happening. This last time I was doing some telnet activity so it's gotten a lot harder for me to believe Netscape does anything more than tweak the problem (despite what others have reported about Netscape but perhaps that a similar but seperate bug). My system is a PowerMac 7500/100 with a 28.8 US Robotics modem. After a few days my PPP connection drops from what I believe are hardware problems at my ISP's end. I then restart the PPP connection using netcfg and get back to work. Ussually after about three reconnects the next time my PPP connection hoses, the system itself hangs shortly there-after. As in nothing works, moves, lights up. Can't even switch virtual console or see any of the keyboard LEDs light up. After I reboot the system, there's no indication of what caused the hang in the messages file nor would I suspect anything would have logged a problem since its getting hung rather than crashing. I've tried with everything I needed compiled into the kernel and I've tried kernels where most of what I needed in my kernel that could get built as a module got built as such. Nothing's helped but 2.2.12 doesn't seem as quick to get into this hung state. No one I know using Linux on an Intel box has had this sort of problem so it would seem something specific to the PowerPC specific code and I'd guess the bug's in the serial driver or the ppp driver except there doesn't seem to be any PPC specific code in either of these. I tried compiling with the SysReq hot key functionality but that didn't seem to be supported properly for the PowerPC. If anyone knows of a source patch to fix this, please pass it a long. If anyone has any better ideas where this bug might be, please point those kernel files out. If anyone just has some pretty good ideas for how to debug the kernel code for this problem, even pass that on. Thanks! --------------BAF6FD94C4EF410F4C243E50-- ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/