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2.4.19 crashes, 16 bpp framebuffer


Just a "data point" for those doing kernel development...

My Netwinder has had two crashes since upgrading to Othmar's 2.4.19 kernel-image packages. It previously had several months of uptime with 2.4.16 kernel-image from stable.

The machine is an ipmasq box for a small home network on a hub, with the following modules installed: parport_pc, lp, parport, af_packet, slip, ipchains, waveartist, sound, soundcore, fbcon-cfb16, tulip, ne2k-pci, 8390. It runs dhcp for the home network, dhcp-client to get its address from the cable modem, apache, samba, and is a part-time desktop running X 4.2.1 with GNOME 2 in an unstable chroot. (I hadn't known you could do X in a chroot, but it works.)

So the two times it crashed, I was doing net stuff on my laptop, and suddenly the net connection went down. Both times the connector to my laptop (the little cable thingy between the RJ45 and the laptop net port) was partly out, and I plugged it back in, but still couldn't connect because the netwinder had crashed.

Also, both times X happened to be running, the first time with GNOME 2 running, the second just sitting in gdm. No idea whether this did anything. And both times, dpms had shut down the monitor, and turning it on and hitting keys didn't help -- no oops in sight.

This same thing had happened several times before with 2.4.16, but no crash. Could there be a partial-packet exception crashing the kernel? I don't see how such a thing could be ARM-specific, since AFAIK all of the net code is in C, and I'm sure others would have seen it on other platforms... I haven't tried to reproduce it, will do so if it would help debug, but in the meantime the coincidence is pretty striking.

Okay, like I said, just a data point, feel free to ignore it. When it happened a third time in a dream last night, I couldn't any more. (Yes, I know, "That's sick!" :-)

BTW, has anyone got 16 bpp framebuffer working in the new kernel-image? It fails for me in the same way as 2.4.16...


-Adam P.

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