From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <37C6CA26.49441879@wanadoo.fr> Date: Fri, 27 Aug 1999 19:25:58 +0200 From: Martin Costabel MIME-Version: 1.0 To: Franz Sirl CC: linuxppc-dev@lists.linuxppc.org, Paul.Mackerras@cs.anu.edu.au Subject: Re: vger-2.3.15 on pmac References: <4.2.0.58.19990826171730.00981650@mail.lauterbach.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Franz Sirl wrote: > What's still NOT fixed in 2.3.15 and really annoying for a lot of users is > "FB. overflow" aka "macserial: flipbuffer overflow". This was introduced > somewhere late 2.1 or early 2.2. I think this one is responsible for some > of the hard crashes reported on linuxppc-users under the "Communicator > crashes X" thread. I don't know if it is related, but I had several other hard freezes in the meantime. One reproducible method is to run xdir (or gftp, works too), connect to a remote site, wait until the connection is established, choose "quit" from the menu, confirm, and boom! hard freeze. If I don't connect to a remote site, there is no freeze. I don't know how to debug this, because I don't see any error messages. The other kernel panics arrived at the end of the boot process or during login. The message was "kernel stack overflow, in swapper task, not syncing", many lines of "page fault in interrupt handler, addr=c". The kernel addresses given were all init_task_union + offset. Another strange thing, or maybe it is related, are error messages in my /var/log/dhcpd.log file: Aug 27 12:04:42 rennes-28 dhcpcd[185]: corrupted UDP msg with uh_ulen=312 in_cksum=-2 discarded Aug 27 12:05:37 rennes-28 last message repeated 16 times Aug 27 12:06:28 rennes-28 last message repeated 3 times Such messages appear irregularly, about every 10 minutes. There is no clear relation with the dialog with my dhcp server. Otherwise the net traffic over ethrnet/adsl/dhcp seems to work correctly. This happens only with 2.3.15, not with 2.2.12. In the log file I find that I had such messages also between June 3 and June 13. I think these were the times when I tried 2.3.x kernels. -- Martin [[ This message was sent via the linuxppc-dev mailing list. Replies are ]] [[ not forced back to the list, so be sure to Cc linuxppc-dev if your ]] [[ reply is of general interest. Please check http://lists.linuxppc.org/ ]] [[ and http://www.linuxppc.org/ for useful information before posting. ]]