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2.7 KiB

From 048250c4e0469f5ab3b6230092e1ce40b6b148c6 Mon Sep 17 00:00:00 2001
From: John Kacur <jkacur@redhat.com>
Date: Wed, 13 Sep 2017 00:39:08 +0100
Subject: [PATCH 2/2] tuna: isolate_cpus - exit with a message instead of a
traceback
isolate_cpus can create a traceback if passed an illegal cpuset
If this happens, exit with a message instead of a traceback
Signed-off-by: John Kacur <jkacur@redhat.com>
---
tuna/tuna.py | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tuna/tuna.py b/tuna/tuna.py
index 13b3743e8d06..1ed21353ab48 100755
--- a/tuna/tuna.py
+++ b/tuna/tuna.py
@@ -343,6 +343,7 @@ def parse_irq_affinity_filename(filename, nr_cpus):
def isolate_cpus(cpus, nr_cpus):
+ fname = sys._getframe( ).f_code.co_name # Function name
ps = procfs.pidstats()
ps.reload_threads()
previous_pid_affinities = {}
@@ -354,6 +355,9 @@ def isolate_cpus(cpus, nr_cpus):
except (SystemError, OSError) as e: # old python-schedutils incorrectly raised SystemError
if e[0] == errno.ESRCH:
continue
+ elif e[0] == errno.EINVAL:
+ print >> sys.stderr, "Function:", fname, ",", e.strerror
+ sys.exit(2)
raise e
if set(affinity).intersection(set(cpus)):
previous_pid_affinities[pid] = copy.copy(affinity)
@@ -363,6 +367,9 @@ def isolate_cpus(cpus, nr_cpus):
except (SystemError, OSError) as e: # old python-schedutils incorrectly raised SystemError
if e[0] == errno.ESRCH:
continue
+ elif e[0] == errno.EINVAL:
+ print >> sys.stderr, "Function:", fname, ",", e.strerror
+ sys.exit(2)
raise e
if not ps[pid].has_key("threads"):
@@ -376,6 +383,9 @@ def isolate_cpus(cpus, nr_cpus):
except (SystemError, OSError) as e: # old python-schedutils incorrectly raised SystemError
if e[0] == errno.ESRCH:
continue
+ elif e[0] == errno.EINVAL:
+ print >> sys.stderr, "Function:", fname, ",", e.strerror
+ sys.exit(2)
raise e
if set(affinity).intersection(set(cpus)):
previous_pid_affinities[tid] = copy.copy(affinity)
@@ -385,6 +395,9 @@ def isolate_cpus(cpus, nr_cpus):
except (SystemError, OSError) as e: # old python-schedutils incorrectly raised SystemError
if e[0] == errno.ESRCH:
continue
+ elif e[0] == errno.EINVAL:
+ print >> sys.stderr, "Function:", fname, ",", e.strerror
+ sys.exit(2)
raise e
del ps
--
2.9.5