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Problem booting gnumach on SCSI Adaptec AIC-7860

From: Michele Dalla Silvestra
Subject: Problem booting gnumach on SCSI Adaptec AIC-7860
Date: Tue, 28 Aug 2001 22:49:16 +0200
User-agent: Mutt/1.2.5i

I have installed GNU/Hurd (the tarball gnu-20010308.tar.gz) on a machine
with a SCSI HD, but it hand after these messages:

GNUmach 1.2
AT386 boot: physical memory from 0x0 to 0x4000000
pcibios_init : BIOS32 Service Directory structure at 0x000fda60
pcibios_init : BIOS32 Service Directory entry at 0xf6533
pcibios_init : PCI BIOS revision 2.10 entry at 0xf66f0
Probing PCI hardware.
ide: i82371 PIIX (Triton) on PCI bus 0 function 33
    ide0: BM-DMA at 0x0500-0x0507
    ide1: BM-DMA at 0x0508-0x050f
hd2: CD-ROM CDU611-H, ATAPI CDROM drive
ide1 at 0x170-0x177,0x376 on irq 15
Floppy drive(s): fd0 is 1.44M
FDC 0 is a National Semiconductor PC87306
(scsi0) <Adaptec AIC-7860 Ultra SCSI host adapter> found at PCI 7/0
(scsi0) Narrow Channel, SCSI ID=7, 3/255 SCBs
(scsi0) Warning - detected auto-termination
(scsi0) Please verify driver detected settings are correct.
(scsi0) If not, then please properly set the device termination
(scsi0) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted
(scsi0) during machine bootup.
(scsi0) Cables present (Int-50 YES, Ext-50 NO)
(scsi0) Downloading sequencer code... 419 instructions downloaded

If I stroke a key (after various minutes), the PC show this rows, pause for
about 1 minute and restart automatically:

Kernel General protection trap, eip 0x11a43a
kernel trap, type 13, code = 0
Dump of i386_saved_state 0029d280:
EAX f000aaaa EBX 0029dbcc ECX 00000000 EDX 0029dbcc
ESI 00000206 EDI 00000246 EBP 0029d1e4 ESP 0029d214
CS 0008 SS 6c69 DS 0010 ES 0010 FS 0000 GS 0000
v86:            DS d244 ES dbcc FS 0f80 GS 0f80
EIP 0011a43a EFLAGS 00010293
trapno 13: General protection, error 00000000
panic: trap

This machine run Linux 2.2 without problem, the controller is seen under
Linux as:

00:07.0 SCSI storage controller: Adaptec AIC-7860 (rev 01)
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 4 min, 4 max, 64 set, cache line size 08
        Interrupt: pin A routed to IRQ 11
        Region 0: I/O ports at fc00
        Region 1: Memory at fedff000 (32-bit, non-prefetchable)

I don't know what to do, if it can help, I can do some debug, but I don't
know how...



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