From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xensource.com
Cc: George Dunlap <george.dunlap@citrix.com>
Subject: [PATCH 2 of 5] xentrace: print calculated numbers in calculate_tbuf_size()
Date: Wed, 23 Mar 2011 18:54:23 +0100 [thread overview]
Message-ID: <f9b7516023d3897e545e.1300902863@localhost> (raw)
In-Reply-To: <patchbomb.1300902861@localhost>
# HG changeset patch
# User Olaf Hering <olaf@aepfle.de>
# Date 1300900085 -3600
# Node ID f9b7516023d3897e545e41ecf6950a798bea0703
# Parent 14ac28e4656d0c235c5edf119426b1bcf3bf33d4
xentrace: print calculated numbers in calculate_tbuf_size()
Print number of pages to allocate for per-cpu tracebuffer and metadata
to ease debugging when allocation fails.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
diff -r 14ac28e4656d -r f9b7516023d3 xen/common/trace.c
--- a/xen/common/trace.c Wed Mar 23 18:08:04 2011 +0100
+++ b/xen/common/trace.c Wed Mar 23 18:08:05 2011 +0100
@@ -127,6 +127,8 @@
t_info_bytes = num_online_cpus() * pages + t_info_first_offset;
t_info_bytes *= sizeof(uint32_t);
t_info_pages = PFN_UP(t_info_bytes);
+ printk(XENLOG_INFO "xentrace: requesting %u t_info pages for %u trace pages on %u cpus\n",
+ t_info_pages, pages, num_online_cpus());
return pages;
}
next prev parent reply other threads:[~2011-03-23 17:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-23 17:54 [PATCH 0 of 5] xentrace updates Olaf Hering
2011-03-23 17:54 ` [PATCH 1 of 5] xentrace: fix t_info_pages calculation for the default case Olaf Hering
2011-03-24 12:09 ` Christoph Egger
2011-03-24 12:18 ` Christoph Egger
2011-03-24 12:34 ` Keir Fraser
2011-03-24 15:47 ` George Dunlap
2011-03-24 16:03 ` Olaf Hering
2011-03-24 16:04 ` Keir Fraser
2011-03-23 17:54 ` Olaf Hering [this message]
2011-03-23 17:54 ` [PATCH 3 of 5] xentrace: remove gdprintk usage since they are not in guest context Olaf Hering
2011-03-23 17:54 ` [PATCH 4 of 5] xentrace: update comments Olaf Hering
2011-03-23 17:54 ` [PATCH 5 of 5] xentrace: use consistent printk prefix Olaf Hering
-- strict thread matches above, loose matches on Subject: below --
2011-03-22 19:21 [PATCH 0 of 5] xentrace updates Olaf Hering
2011-03-22 19:21 ` [PATCH 2 of 5] xentrace: print calculated numbers in calculate_tbuf_size() Olaf Hering
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