From: Arun Sharma <asharma@fb.com>
To: linux-perf-users@vger.kernel.org
Cc: David Ahern <dsahern@gmail.com>, Andrew Vagin <avagin@gmail.com>
Subject: Trouble parsing trace events
Date: Tue, 22 Nov 2011 22:51:23 -0800 [thread overview]
Message-ID: <4ECC97EB.1040008@fb.com> (raw)
I'm using a 3.2-rc1 based kernel and perf userspace built from
tip/auto-latest (commit id e471db8) + Andrew Vagin's sleep profiling
patches.
# perf record -agT -e sched:sched_switch -F 100 -- sleep 3
[ perf record: Woken up 9 times to write data ]
[ perf record: Captured and wrote 4.044 MB perf.data (~176664 samples) ]
# perf script
Warning: Error: expected type 5 but read 4
Warning: Error: expected type 4 but read 0
Fatal: bad op token {
Is there a known incompatibility between kernel and userspace that could
explain this?
I don't see this problem with other trace points (eg: kmem:kmalloc).
-Arun
next reply other threads:[~2011-11-23 6:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-23 6:51 Arun Sharma [this message]
2011-11-23 7:03 ` Trouble parsing trace events Andrew Vagin
2011-11-23 7:14 ` Arun Sharma
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