From: Juergen Gross <jgross@suse.com>
To: xen-devel@lists.xenproject.org
Cc: George.Dunlap@eu.citrix.com, wei.liu2@citrix.com,
ian.jackson@eu.citrix.com, Juergen Gross <jgross@suse.com>
Subject: [PATCH v2 0/2] xentrace: fix xentrace for smt=0
Date: Thu, 4 Oct 2018 12:51:48 +0200 [thread overview]
Message-ID: <20181004105150.27923-1-jgross@suse.com> (raw)
When hyperthreads are disabled via smt=0 Xen boot parameter xentrace
is no longer working, but crashing the system.
Patch 1 makes the xentrace user tool work on systems when not all
possible cpu ids have an associated trace buffer allocated.
Patch 2 corrects xentrace handling by sizing the control structures
according to the physical cpus instead of taking online cpus into
account only.
Juergen Gross (2):
xentrace: allow sparse cpu list
xentrace: handle sparse cpu ids correctly in xen trace buffer handling
tools/xentrace/xentrace.c | 18 ++++++++++++------
xen/common/trace.c | 6 +++---
2 files changed, 15 insertions(+), 9 deletions(-)
--
2.16.4
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next reply other threads:[~2018-10-04 10:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-04 10:51 Juergen Gross [this message]
2018-10-04 10:51 ` [PATCH v2 1/2] xentrace: allow sparse cpu list Juergen Gross
2018-10-04 11:22 ` George Dunlap
2018-10-04 11:25 ` Juergen Gross
2018-10-04 10:51 ` [PATCH v2 2/2] xentrace: handle sparse cpu ids correctly in xen trace buffer handling Juergen Gross
2018-10-04 11:39 ` George Dunlap
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