From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt R Hall Date: Tue, 21 Sep 2004 01:38:13 +0000 Subject: Kernel.org Bugzilla Bug: Ultra 2 Enterprise: All 2.6.xx SMP kernels hardlock Message-Id: <703d4eaa0409201838768c0ff4@mail.gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ultralinux@vger.kernel.org http://bugme.osdl.org/show_bug.cgi?id428 I filed a report about this in kernel.org's bugzilla and it has not received any comments. I would appreciate it if people could read this and provide input. Here is a shortened version of the full report: Distribution: Debian Unstable (Sid) 2004-09-20 Hardware Environment: Sun Ultra Enterprise II 2x200 mHz UltraSPARC I Processor 512MB RAM 2x4.3GB 7200RPM SCSI Disc Toshiba SCSI CD-ROM Kernel configuration and dmesg output are pasted below for reference purposes. Software Environment: Standard Debian Unstable System Problem Description: Sun Ultra Enterprise 2 was hardlocking in 2.6.xx. Never responded to keyboard input. Sometimes would respond to pings and SSH connections for a while, but would always lock hard eventually with no errors. Note that this exact same system works perfectly in 2.4.xx. I reiterate, SMP functions correctly there. Obviously something has changed and caused functionality to break, hence why I have marked this bug high severity. IMHO, "stable" kernel series should not result in a step back in hardware compatibility. Disabling SMP resulted in a working system. Steps to reproduce: Compile with the following kernel configuration, except add the SMP option. Witness the machine fail to continue functioning.