Re: 2.2.14pre17,pre18: lock up possibly related to floppy

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 3 Jan 2000 03:31:01 +0200

> The 2.2.14pre17 and pre18 kernels on one machine here locks up
> with the message "Kernel panic: B_FREE insert into queues" in the
> middle of a very long build process. There is no register dump or
> anything following that. The machine is still pingable at that point,
> but it will not create a new login process. I believe it is unable to
> complete any further block device I/O at that point.

The only block I/O related changes in 2.2.14pre17/18 are the IDE ones. If
the box is IDE and the machine is using PIO can you do

hdparm -m0 /dev/hda

and try to repeat it.

The only other potential change that might affect it would be the AHA1542
driver change if the box is using the old 1542 ISA controller

Alan

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