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From: Thomas Richter <tmricht@linux.ibm.com>
To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	acme@kernel.org
Cc: brueckner@linux.vnet.ibm.com, heiko.carstens@de.ibm.com,
	Thomas Richter <tmricht@linux.ibm.com>
Subject: [PATCH 0/3] Fix OOM in perf report on s390
Date: Wed, 22 May 2019 16:45:58 +0200	[thread overview]
Message-ID: <20190522144601.50763-1-tmricht@linux.ibm.com> (raw)

This patch set fixes OOM scenarios on s390 when commands
perf top or perf report are executed. This often happens
when debuginfo packages are not installed. Root users
and non-root users are both affected.

Patch 1: Do not allocate memory for histograms when
         the symbol is not of type function.
Patch 2: Reduce the gap between kernel end and and first
         module start address on perf record.
Patch 3: Create module maps for non-root user during
         perf record on s390.

Thomas Richter (3):
  perf report: Fix OOM error in TUI mode on s390
  perf record: Fix kallsym map size for s390
  perf record: Fix s390 missing module symbol and warning for non-root
    users

 tools/perf/arch/s390/util/machine.c |  9 ++++++---
 tools/perf/util/annotate.c          |  2 +-
 tools/perf/util/event.c             |  4 ++--
 tools/perf/util/machine.c           | 29 +++++++++++++++++++++++------
 4 files changed, 32 insertions(+), 12 deletions(-)

-- 
2.19.1


             reply	other threads:[~2019-05-22 14:46 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-22 14:45 Thomas Richter [this message]
2019-05-22 14:45 ` [PATCH 1/3] perf report: Fix OOM error in TUI mode " Thomas Richter
2019-05-22 18:08   ` Arnaldo Carvalho de Melo
2019-05-23  8:12     ` Thomas-Mich Richter
2019-05-22 14:46 ` [PATCH 2/3] perf record: Fix kallsym map size for s390 Thomas Richter
2019-05-22 14:46 ` [PATCH 3/3] perf record: Fix s390 missing module symbol and warning for non-root users Thomas Richter
2019-05-22 18:03   ` Arnaldo Carvalho de Melo
2019-05-28 21:30   ` [tip:perf/urgent] " tip-bot for Thomas Richter

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