From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ryan Harper Subject: Re: Numa=on broken? Date: Fri, 4 May 2007 08:33:14 -0500 Message-ID: <20070504133314.GR27552@us.ibm.com> References: <20070503231005.GP27552@us.ibm.com> <94C8C9E8B25F564F95185BDA64AB05F605025EC7@USTR-EXCH5.na.uis.unisys.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="VdOwlNaOFKGAtAAV" Return-path: Content-Disposition: inline In-Reply-To: <94C8C9E8B25F564F95185BDA64AB05F605025EC7@USTR-EXCH5.na.uis.unisys.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Subrahmanian, Raj" Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org --VdOwlNaOFKGAtAAV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline * Subrahmanian, Raj [2007-05-04 01:23]: > Ryan, > I did check out the mail discussion where you encountered and fixed > this. > I am seeing this again on 15009, unstable and in 15021 3.1. rc7. > I have included the debug messages in both runs. Hrm, well, we need to see which node the request is failing in so we can figure out how to initialize the heap. I'm attaching a patch that should hopefully dump out which node the memory request is failing in. Last time, it was the xmalloc() in xen/common/page_alloc.c in init_heap_pages(). Give this patch a spin and email me the output. I'd also be interested in your SRAT table output for this machine. -- Ryan Harper Software Engineer; Linux Technology Center IBM Corp., Austin, Tx (512) 838-9253 T/L: 678-9253 ryanh@us.ibm.com --VdOwlNaOFKGAtAAV Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="numa_debug.patch" diff -r 3a5722420de7 xen/common/page_alloc.c --- a/xen/common/page_alloc.c Thu May 03 19:25:47 2007 +0100 +++ b/xen/common/page_alloc.c Fri May 04 08:29:48 2007 -0500 @@ -353,6 +353,8 @@ static struct page_info *alloc_heap_page ASSERT(zone_lo <= zone_hi); ASSERT(zone_hi < NR_ZONES); + printk("%s: request for node %d\n", node); + if ( unlikely(order > MAX_ORDER) ) return NULL; @@ -543,8 +545,10 @@ void init_heap_pages( if ( !avail[nid_curr] ) { + printk("%s: attempting to initialize avail[%d]\n", nid_curr); avail[nid_curr] = xmalloc_array(unsigned long, NR_ZONES); memset(avail[nid_curr], 0, NR_ZONES * sizeof(long)); + printk("%s: attempting to initialize _heap[%d]\n", nid_curr); _heap[nid_curr] = xmalloc(heap_by_zone_and_order_t); init_heap_block(_heap[nid_curr]); } --VdOwlNaOFKGAtAAV Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel --VdOwlNaOFKGAtAAV--