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sparc64: Like x86 we should check current->mm during perf backtrace generation.
authorDavid S. Miller <davem@davemloft.net>
Mon, 15 Oct 2012 00:59:40 +0000 (17:59 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 28 Oct 2012 17:14:16 +0000 (10:14 -0700)
commit846514fcb8f4518aa88636542bb7aa8453faacb2
tree49333565cd2d8bcda020e928791d534b4c63c4b9tree | snapshot
parent01afdbe150a888b20b24a427e010214530176cf5commit | diff
sparc64: Like x86 we should check current->mm during perf backtrace generation.

[ Upstream commit 08280e6c4c2e8049ac61d9e8e3536ec1df629c0d ]

If the MM is not active, only report the top-level PC.  Do not try to
access the address space.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/sparc/kernel/perf_event.c diff | blob | history
Linux kernel for KaRo TX COM modules