[4315] in linux-scsi channel archive
boot problem with aic7xxx in 2.0.34
daemon@ATHENA.MIT.EDU (Piet W. Plomp)
Wed Jul 8 09:33:32 1998
From: "Piet W. Plomp" <piet@idefix.icce.rug.nl>
To: linux-scsi@vger.rutgers.edu
Date: Wed, 8 Jul 1998 15:29:06 +0200 (CEST)
Reply-To: piet@idefix.icce.rug.nl
Dear maintainers,
I'm having trouble with the aic7xxx driver in 2.0.34. The same in 2.0.33
works without a problem.
I'll be able to do some testing if needed, please let me know.
Hardware: Adaptec 2940 SCSI PCI
- Quantum harddisk id 2
- Yahama cdwriter id 3
- Iomega jaz id 6
- (card itself at id 7)
Other possibly relevant hardware: ide zip drive, internal 1k44 modem on irq 5.
Kernel config (2.0.34):
#
CONFIG_SCSI=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_RESET_DELAY=15
rest commented
During kernel boot I get:
scsi: 1 host.
(scsi0:0:-1:-1) Scanning for devices.
scsi: detected total.
which is obviously nothing.
Since the harddisk contains the root filesystem things go wrong lateron:
VFS: Cannot open root device 08:02
(is /dev/sda2, whisch is correct)
Kernel Panic: VFS: Unable to mount root fs on 08:02
(of course, disk was not found)
(scsi0:-1:-1:-1) Bad scbptr 255 during SELTO
(scsi0:-1:-1:-1) Referenced SCB 255 not valid during SELTO
SCSISEQ = 0x12 SEQADDR = 0x9 SSTAT0 = 0x15 SSTAT1 = 0x88
I noticed that the configuration of 2.0.34 has changed a lot. On first
compilation I lost my ethernetcard (tulip 21041 chipset) and the
msdos filesystem. But I had the scsi devices! After I included the
dos filesystem (dos fat, msdos fs and vfat, as well as codepages
850 and iso 8859-1), and enabled the tulip again, the scsi system refuses to
work, as shown above.
Again, all this works fine on 2.0.33.
I'm out of options here. I might do something wrong (there is not irq conflict
in the machine) and I'm willing to help testing if it appears to be a bug
(I'm an experienced C programmer, don't know the kernel internals).
Thanks for any pointers on this!
NOTE: PLEASE REPLY TO ME DIRECTLY, I'm not on the list.
--
Piet W. Plomp, ICCE, Groningen University | --- __ o __~o
The Netherlands. piet@icce.rug.nl, | ---- _`\<, _`\<,
piet@idefix.icce.rug.nl | --- ( )/( ) ( )/( )
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