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: Tue, 22 Mar 2011 20:21:30 +0100 [thread overview]
Message-ID: <d61854ab2758f6918186.1300821690@localhost> (raw)
In-Reply-To: <patchbomb.1300821688@localhost>
# HG changeset patch
# User Olaf Hering <olaf@aepfle.de>
# Date 1300813690 -3600
# Node ID d61854ab2758f691818678c2d03e18e0e165802a
# Parent 08df96398bff82a8924a37eda6ddffd1ada3f407
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 08df96398bff -r d61854ab2758 xen/common/trace.c
--- a/xen/common/trace.c Tue Mar 22 18:08:05 2011 +0100
+++ b/xen/common/trace.c Tue Mar 22 18:08:10 2011 +0100
@@ -127,6 +127,8 @@
t_info_pages /= PAGE_SIZE;
if ( t_info_pages % PAGE_SIZE || t_info_pages == 0 )
t_info_pages++;
+ printk(XENLOG_INFO "Xen trace buffers: 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:[~2011-03-22 19:21 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-22 19:21 [PATCH 0 of 5] xentrace updates Olaf Hering
2011-03-22 19:21 ` [PATCH 1 of 5] xentrace: fix t_info_pages calculation for the default case Olaf Hering
2011-03-23 10:12 ` Jan Beulich
2011-03-23 10:22 ` Keir Fraser
2011-03-23 11:20 ` Olaf Hering
2011-03-23 12:33 ` Keir Fraser
2011-03-23 12:46 ` Olaf Hering
2011-03-23 14:56 ` George Dunlap
2011-03-23 12:45 ` Jan Beulich
2011-03-23 13:16 ` Olaf Hering
2011-03-23 13:35 ` Keir Fraser
2011-03-22 19:21 ` Olaf Hering [this message]
2011-03-22 19:21 ` [PATCH 3 of 5] xentrace: remove gdprintk usage since they are not in guest context Olaf Hering
2011-03-22 19:21 ` [PATCH 4 of 5] xentrace: update comments Olaf Hering
2011-03-22 19:21 ` [PATCH 5 of 5] xentrace: use consistent printk prefix Olaf Hering
2011-03-23 10:14 ` Jan Beulich
2011-03-23 11:18 ` Olaf Hering
2011-03-23 14:47 ` George Dunlap
2011-03-23 16:20 ` Jan Beulich
2011-03-23 17:02 ` George Dunlap
2011-03-23 17:11 ` Olaf Hering
-- strict thread matches above, loose matches on Subject: below --
2011-03-23 17:54 [PATCH 0 of 5] xentrace updates Olaf Hering
2011-03-23 17:54 ` [PATCH 2 of 5] xentrace: print calculated numbers in calculate_tbuf_size() Olaf Hering
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