cvs commit: src/sys/dev/fdc fdc_isa.c

Poul-Henning Kamp phk at
Tue Sep 28 23:59:00 PDT 2004

In message <20040929065133.GA905 at>, John Birrell writes:

>> Can you also send me your dmesg line for fdc?
>Sep 29 16:11:32 freebsd3 kernel: fdc0: <floppy drive controller> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0
>Sep 29 16:11:32 freebsd3 kernel: fdc0: [FAST]
>Sep 29 16:11:32 freebsd3 kernel: fd0: <1440-KB 3.5" drive> on fdc0 drive 0
>For phk:
>The debug settings show a loop:
>Retry line 1054
>Too many retries
>00 00 00 00 af 10 12 80 57 00
>.... at first. This happens for at least the first 30 seconds. I'll need to setup
>a serial console to capture the output accurately because the output changes and
>some geom debug is output. There is too much for me to transcribe.
>Can you suggest a place where debug could be cancelled because the machine gets
>very frantic when it's booted? 8-)

This again smells like the drive change line not being sensed correctly at 3f7:

It would happen if we think there is a floppy in the drive, but in fact there isn't.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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