search for: testmmiotrace

...stedt <rostedt at goodmis.org> cc: Ingo Molnar <mingo at kernel.org> cc: Thomas Gleixner <tglx at linutronix.de> cc: "H. Peter Anvin" <hpa at zytor.com> cc: x86 at kernel.org cc: linux-kernel at vger.kernel.org cc: nouveau at lists.freedesktop.org --- arch/x86/mm/testmmiotrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/mm/testmmiotrace.c b/arch/x86/mm/testmmiotrace.c index 38868adf07ea..f6ae6830b341 100644 --- a/arch/x86/mm/testmmiotrace.c +++ b/arch/x86/mm/testmmiotrace.c @@ -9,7 +9,7 @@ #include <linux/mmiotrace.h> stati...

...y: Marcin Slusarz <marcin.slusarz at gmail.com> Acked-by: Pekka Paalanen <pq at iki.fi> Cc: Stuart Bennett <stuart at freedesktop.org> Tested-by: Marcin Ko?cielnicki <koriakin at 0x04.net> Tested-by: Shinpei KATO <shinpei at il.is.s.u-tokyo.ac.jp> --- v2: added test to testmmiotrace.c --- arch/x86/mm/kmmio.c | 16 +++++++++++++--- arch/x86/mm/testmmiotrace.c | 22 ++++++++++++++++++++++ 2 files changed, 35 insertions(+), 3 deletions(-) diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c index 5d0e67f..e5d5e2c 100644 --- a/arch/x86/mm/kmmio.c +++ b/arch/x86/mm/...

...stedt <rostedt at goodmis.org> cc: Ingo Molnar <mingo at kernel.org> cc: Thomas Gleixner <tglx at linutronix.de> cc: "H. Peter Anvin" <hpa at zytor.com> cc: x86 at kernel.org cc: linux-kernel at vger.kernel.org cc: nouveau at lists.freedesktop.org --- arch/x86/mm/testmmiotrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/mm/testmmiotrace.c b/arch/x86/mm/testmmiotrace.c index 38868adf07ea..f6ae6830b341 100644 --- a/arch/x86/mm/testmmiotrace.c +++ b/arch/x86/mm/testmmiotrace.c @@ -9,7 +9,7 @@ #include <linux/mmiotrace.h> stati...

...nc.c | 8 ++-- arch/x86/mm/kmmio.c | 8 ++-- arch/x86/mm/mmio-mod.c | 5 +-- arch/x86/mm/numa.c | 12 +++--- arch/x86/mm/numa_emulation.c | 6 +-- arch/x86/mm/testmmiotrace.c | 5 +-- arch/x86/oprofile/op_x86_model.h | 6 +-- arch/x86/platform/olpc/olpc-xo15-sci.c | 2 +- arch/x86/platform/sfi/sfi.c | 3 +- arch/x86/xen/debugfs.c | 2 +- arch/x86/xen/setup.c...

...nc.c | 8 ++-- arch/x86/mm/kmmio.c | 8 ++-- arch/x86/mm/mmio-mod.c | 5 +-- arch/x86/mm/numa.c | 12 +++--- arch/x86/mm/numa_emulation.c | 6 +-- arch/x86/mm/testmmiotrace.c | 5 +-- arch/x86/oprofile/op_x86_model.h | 6 +-- arch/x86/platform/olpc/olpc-xo15-sci.c | 2 +- arch/x86/platform/sfi/sfi.c | 3 +- arch/x86/xen/debugfs.c | 2 +- arch/x86/xen/setup.c...

...nc.c | 8 ++-- arch/x86/mm/kmmio.c | 8 ++-- arch/x86/mm/mmio-mod.c | 5 +-- arch/x86/mm/numa.c | 12 +++--- arch/x86/mm/numa_emulation.c | 6 +-- arch/x86/mm/testmmiotrace.c | 5 +-- arch/x86/oprofile/op_x86_model.h | 6 +-- arch/x86/platform/olpc/olpc-xo15-sci.c | 2 +- arch/x86/platform/sfi/sfi.c | 3 +- arch/x86/xen/debugfs.c | 2 +- arch/x86/xen/setup.c...

After every iounmap mmiotrace has to free kmmio_fault_pages, but it can't do it directly, so it defers freeing by RCU. It usually works, but when mmiotraced code calls ioremap-iounmap multiple times without sleeping between (so RCU won't kick in and start freeing) it can be given the same virtual address, so at every iounmap mmiotrace will schedule the same pages for release. Obviously it

...x86: Ioremap: fix wrong physical address handling in PAT code arch/x86/mm/dump_pagetables.c | 32 ++++++++++++++++++++++++++------ arch/x86/mm/ioremap.c | 14 ++++++-------- arch/x86/mm/kmmio.c | 16 +++++++++++++--- arch/x86/mm/pat.c | 2 +- arch/x86/mm/testmmiotrace.c | 22 ++++++++++++++++++++++ arch/x86/mm/tlb.c | 4 +--- arch/x86/vdso/vdso32-setup.c | 2 +- arch/x86/vdso/vma.c | 2 +- include/linux/io.h | 4 ++-- include/linux/vmalloc.h | 2 +- lib/ioremap.c | 10 +++++----- mm/vma...

...| 15 ++++++----- arch/x86/kernel/tsc_sync.c | 8 +++--- arch/x86/mm/kmmio.c | 8 +++--- arch/x86/mm/mmio-mod.c | 5 ++-- arch/x86/mm/numa.c | 12 ++++----- arch/x86/mm/numa_emulation.c | 6 ++--- arch/x86/mm/testmmiotrace.c | 5 ++-- arch/x86/oprofile/op_x86_model.h | 6 ++--- arch/x86/platform/olpc/olpc-xo15-sci.c | 2 +- arch/x86/platform/sfi/sfi.c | 3 +-- arch/x86/xen/debugfs.c | 2 +- arch/x86/xen/setup.c | 2 +- 16 files changed, 63 insertions...