summaryrefslogtreecommitdiff
path: root/kernel/sched_stats.h
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-11-16 08:07:15 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-16 08:07:15 +0100
commit29d7b90c15035741d15421b36000509212b3e135 (patch)
treea9978411950af9c4dbebcc82a944fef35a58f209 /kernel/sched_stats.h
parent2fe401e38602e853e01376cdb670b0bc4d526a6d (diff)
sched: fix kernel warning on /proc/sched_debug access
Luis Henriques reported that with CONFIG_PREEMPT=y + CONFIG_PREEMPT_DEBUG=y + CONFIG_SCHED_DEBUG=y + CONFIG_LATENCYTOP=y enabled, the following warning triggers when using latencytop: > [ 775.663239] BUG: using smp_processor_id() in preemptible [00000000] code: latencytop/6585 > [ 775.663303] caller is native_sched_clock+0x3a/0x80 > [ 775.663314] Pid: 6585, comm: latencytop Tainted: G W 2.6.28-rc4-00355-g9c7c354 #1 > [ 775.663322] Call Trace: > [ 775.663343] [<ffffffff803a94e4>] debug_smp_processor_id+0xe4/0xf0 > [ 775.663356] [<ffffffff80213f7a>] native_sched_clock+0x3a/0x80 > [ 775.663368] [<ffffffff80213e19>] sched_clock+0x9/0x10 > [ 775.663381] [<ffffffff8024550d>] proc_sched_show_task+0x8bd/0x10e0 > [ 775.663395] [<ffffffff8034466e>] sched_show+0x3e/0x80 > [ 775.663408] [<ffffffff8031039b>] seq_read+0xdb/0x350 > [ 775.663421] [<ffffffff80368776>] ? security_file_permission+0x16/0x20 > [ 775.663435] [<ffffffff802f4198>] vfs_read+0xc8/0x170 > [ 775.663447] [<ffffffff802f4335>] sys_read+0x55/0x90 > [ 775.663460] [<ffffffff8020c67a>] system_call_fastpath+0x16/0x1b > ... This breakage was caused by me via: 7cbaef9: sched: optimize sched_clock() a bit Change the calls to cpu_clock(). Reported-by: Luis Henriques <henrix@sapo.pt>
Diffstat (limited to 'kernel/sched_stats.h')
0 files changed, 0 insertions, 0 deletions