Sil0680 causes panic on 5.2.1-p5.

[Lewis Thompson]

Hi,

I've just bought a Silicon Image Sil 0680 RAID controller.  I will only
be using it as an IDE controller (i.e. without any RAID functionality).

  This causes a panic on 5.2.1-p5 (GENERIC):

atapci1: <SiL 0680 UDMA 133 controller>
port 0xcc00-0xcc0f,0xd000-0xd003,0xd400-0xd407, 0xd800-0xd803,
0xdc00-0xdc07 mem 0xcfffbf00-0xcfffbfff irq 5 at device 9.0 on pic0
atapci1: [MPSAFE]

Fatal trap 12: page fault while in kernel mode
cpuid = 0, apic id = 00

fault virtual address = 0xd12f8000
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc04d2627
stack pointer = 0x10:0xc219a0
frame pointer = 0x10:0xc219ac
code segment = base 0x0, limit 0xfffff, type = 0x1b
	     = DPL 0, pres1, def32 1, grain 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (swapper)
trap number = 12
cpuid = 0;

  As you can see I just wrote this down and typed it up (so there may be
errors!).  If somebody needs meaningful numbers please ask me and I will
go over and double-check everything.

  I have tried the obvious things -- removing other PCI devices, etc.  I
was unable to disable the onboard IDE controller because this card
doesn't seem to support booting.

  The twist is this:  there is no panic if I boot 4.9-rc4 (disk1,
install) or 5.1-RELEASE (disk1, install).  It is specific to 5.2.1-p5
(or at least between 5.1-R and this).

  I verified this with a GENERIC kernel (compiled by me) and a custom
kernel (unneeded devices removed and some firewall stuff added).


  Please ask for any details -- I've not included a dmesg since it would
be of the machine without the card plugged in.  I can provide anything
(but I've not used kernel debugging before).


  Any help with this would be much appreciated,

-lewiz.

-- 
I was so much older then, I'm younger than that now.  --Bob Dylan, 1964.
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