* [9fans] adaptec 1542 -> kernel panic on boot
@ 2003-01-02 10:16 Steve Simon
0 siblings, 0 replies; only message in thread
From: Steve Simon @ 2003-01-02 10:16 UTC (permalink / raw)
To: 9fans
Hi,
I tried to add an Adaptec 1542B to a pc I hope to
use as a cpu server (for DAT and CDROM support)
and I get a panic (This is a dual Pentium Pro machine,
though I still have *nomp=1).
I am booting at present using just the current
installation floppy - but I guess it must have an
aha1542 driver as its doing somthing!
Without the scsi0=aha1542 port=0x330 in plan9.ini
the machine boots fine.
The error I get is:
panic: what ? up is zero pc 0x801a413d
ktrace /kernel/path 80106720 800005c50
I cannot see this error in ther kernel though there is
somthing similar in trap.c - maybe the error message
is getting overwritten by somthing else?
The card set for its default configuration (apart from
the BIOS and floppy being disabled).
Looking at the source (below) I wonder if the interrupt structure
has changed a bit since this code was written and the kernel
is more strict about stray interrupts than it used to be?
This is purely a guess. anyone any other / more concrete ideas?
-Steve
sdmylex.c:
/*
* Get the id, DMA and IRQ info from the board. This will
* cause an interrupt which will hopefully not cause any
* trouble because the interrupt number isn't known yet.
* This is necessary as the DMA won't be set up if the
* board has the BIOS disabled.
*
* If the IRQ is already known, this must be a 32-bit PCI
* or EISA card, in which case the returned DMA and IRQ can
* be ignored.
*/
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2003-01-02 10:16 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-01-02 10:16 [9fans] adaptec 1542 -> kernel panic on boot Steve Simon
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).