From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3988F65E.9DBBAF68@home.com> Date: Wed, 02 Aug 2000 21:34:38 -0700 From: William Blew MIME-Version: 1.0 To: Iain Sandoe CC: linuxppc-dev@lists.linuxppc.org Subject: Re: 2.4.0-t5 lockup on shutdown. References: <200008022120.WAA28609@hyperion.valhalla.net> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Iain Sandoe wrote: > > Does anyone know the cause of the (sometimes) complete lock-up of 2.4.0-t5 > when shutdown & restart is selected from run level 5? > > Observations/Symptoms: > > the switch of VC occurs OK > Then *zilch*. No panic, no response to SysRq keys... no response to > telnet... three finger salute is the only way I've found out of it. It does sound familiar. I have found that occasionally (under high IDE? loads like digital audio CD ripping) the CUDA (VIA under 2.2) interrupt ceases (as in its /proc/interrupts counter stops increasing). Under these circumstances my beige G3/266's ADB bus has stopped at the software level as it is handled by the CUDA (noted as the VIA interrupt with 2.2 on my beige G3/266). The symptoms that I observe are identical: An otherwise healthy mac ignores its keyboard completely (until the three finger salute is used). I diagnosed my situation by ssh'ing in from another workstation and watching the /proc/interrupts file while ripping a digital audio CD. I find that my bug is fairly easy to create on my beige G3/266. Just rip a cd with the grip under helix-gnome and wait. Anywhere from 1 to 11 tracks layer, the VIA (CUDA) interrupt dies *grin*. Another side effect of this interrupt failure is that the 'reboot/shutdown' commands do not work. After all they are also via the CUDA on my G3. So, when I reboot via ssh the G3 'hangs' at right at the end of the shutdown sequence. Be warned: my bug may be a red herring and unrelated to your issue. On the other hand... (isn't debugging fun?). > bk-tree (linuxppc_2_3) as of 19:00 (BST) today. (but it's been happening on > & off with the 2.4.0 tree since I've been trying it). > > Iain. > -- William Blew, wblew@home.com Gamer by Choice, Geek by Birth ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/