From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt To: "Kevin B. Hendricks" , , Subject: Re: funny kernel death with ksoftirqd_CPUX taking up almost 100% of cpu? Date: Wed, 10 Jul 2002 18:24:03 +0200 Message-Id: <20020710162403.16035@192.168.4.1> In-Reply-To: <200207101236.43005.kevin.hendricks@sympatico.ca> References: <200207101236.43005.kevin.hendricks@sympatico.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: > >I just experienced an alarming form of kernel death running a self compiled >SMP kernel with HIGHMEM enabled on my dual G4 -1gig machine. > >The kernel tree used is Ben's 2.4.19-pre10 one rebuilt for SMP support, aec >IDE driver and otherwise basically stock. > >I was debugging in gdb a large program and noticed typing got slower and >slower. I quick check of top showed that ksoftirqd_CPU was taking up >almost 100% of the cpu. I exited out of gdb and killed every process I >could think of but the usage of that kernel demaon stayed at near 100%. BTW. It would be interesting to know if you can ever reproduce it... Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/