From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugme-daemon@bugzilla.kernel.org
Subject: [Bug 11194] New: megraid_mbox kernel panic during st driver initialization
Date: Thu, 31 Jul 2008 07:15:37 -0700 (PDT)
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http://bugzilla.kernel.org/show_bug.cgi?id=11194
Summary: megraid_mbox kernel panic during st driver
initialization
Product: IO/Storage
Version: 2.5
KernelVersion: 2.6.25
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: SCSI
AssignedTo: linux-scsi@vger.kernel.org
ReportedBy: cshore@fionavar.ca
Latest working kernel version: 2.6.24
Earliest failing kernel version: 2.6.26
Distribution: Debian Lenny (-testing + -unstable + kernel trunk for debian)
Hardware Environment: ASUS P4B 2.0 GHz P4 Motherboard, Dell PERC3/DC (like AMI
MegraRAID Elite 1600) LVD Ultra3 SCSI Adaptor with four 80 GB drives on Channel
0 and a SCSI-U2 Seagate DDS-4 tape drive on Channel 1
Software Environment: Debian Lenny (up-to-date), with some unstable and tested
with the testing kernel (.25) and the trunk kernel (.26)
Problem Description: The kernel panics (claiming it's in the megaraid_mbox
driver) during boot when the st driver would normally report
st0: Block limits 1 - 16777215 bytes.
This is after the logical disk has been found and all filesystems mounted, so
the RAID part of the driver is probably fine.
The point at which
st 0:1:6:0: Attached scsi tape st0
st 0:1:6:0: st0: try direct i/o: yes (alignment 512 B)
appears with .24 is passed before the panic, but I haven't actually seen those
messages as they scroll by too quickly.
Steps to reproduce:
1) Install debian lenny with a .24 kernel (I'm not sure how you would do that
now that .24 is no longer the testing kernel); maybe beta2 would still let you.
2) Install -testing kernel (.25)
3) Attempt to boot using the new kernel
4) Kernel panics, system is unusable
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