From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Randall G Chan" Date: Tue, 13 Nov 2001 22:25:59 +0000 Subject: Qlogic scsi driver (was Re: [Linux-ia64] kacpidpc process takes 100% of CPU) Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org "Naturally the process ignores my 'kill -9's. I've tried booting the kernel on single proc Lions (733 C0s), but the kernel won't even boot on those systems (hangs right after it loads the SCSI driver is begins looking for devices)" I've actually noticed this too on both kernels 2.4.13 & 2.4.14. I have not yet been able to figure out what's wrong with it. I have a kernel that works fine on a 4-way C0 Lion, BIOS 99, but when I stick it on a single C0 BIOS 99, the kernel hangs in the above spot (prints out copyright info and driver version, then just hangs when it's scanning the scsi bus). Anyone else notice this or have a solution? Thanks, Randy Chan Mylex - An IBM Company Software Engineer chanr@us.ibm.com -------------------------------------------------------------------------- "Paris, DavidX" com> cc: Sent by: Subject: [Linux-ia64] kacpidpc process takes 100% of CPU linux-ia64-admin@lin uxia64.org 11/13/2001 09:43 AM I've just built 2.4.13 and 2.4.14 with and without the KDB patch and in all cases when the system comes up there is a kacpidpc process (PID 10) taking 100% of one of the cpus (changes which CPU it's on every boot). The system is a 4 processor Lion (733 Mhz B3) with 1 gig of ram. This process isn't even running when I build the same kernels on a BigSpur. I've even tried copying over the very kernel that works fine on the BigSpur, but when I boot it on the Lion I get this kacpidpc process. Naturally the process ignores my 'kill -9's. I've tried booting the kernel on single proc Lions (733 C0s), but the kernel won't even boot on those systems (hangs right after it loads the SCSI driver is begins looking for devices). Does anyone have any idea why this kacpidpc process is hogging one of the CPUs, and how I go about getting rid of it? Unlike in the IA32 kernels, it doesn't look like you can turn off ACPI in the IA64 kernel. Thanks, David _______________________________________________ Linux-IA64 mailing list Linux-IA64@linuxia64.org http://lists.linuxia64.org/lists/listinfo/linux-ia64