Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread Stephane Eranian
On Thu, Oct 17, 2013 at 5:59 PM, David Ahern wrote: > On 10/17/13 9:57 AM, Stephane Eranian wrote: >> >> On Thu, Oct 17, 2013 at 5:54 PM, David Ahern wrote: >>> >>> On 10/17/13 8:28 AM, Stephane Eranian wrote: For now, we disable the extended MMAP record support (MMAP2).

Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread David Ahern
On 10/17/13 9:57 AM, Stephane Eranian wrote: On Thu, Oct 17, 2013 at 5:54 PM, David Ahern wrote: On 10/17/13 8:28 AM, Stephane Eranian wrote: For now, we disable the extended MMAP record support (MMAP2). We have identified cases where it would not report the correct mapping information,

Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread Stephane Eranian
On Thu, Oct 17, 2013 at 5:54 PM, David Ahern wrote: > On 10/17/13 8:28 AM, Stephane Eranian wrote: >> >> >> For now, we disable the extended MMAP record support (MMAP2). >> We have identified cases where it would not report the correct >> mapping information, clone(VM_CLONE) but with separate

Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread David Ahern
On 10/17/13 8:28 AM, Stephane Eranian wrote: For now, we disable the extended MMAP record support (MMAP2). We have identified cases where it would not report the correct mapping information, clone(VM_CLONE) but with separate pids. We will revisit the support once we find a solution for this

[PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread Stephane Eranian
For now, we disable the extended MMAP record support (MMAP2). We have identified cases where it would not report the correct mapping information, clone(VM_CLONE) but with separate pids. We will revisit the support once we find a solution for this case. The patch changes the kernel to return

[PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread Stephane Eranian
For now, we disable the extended MMAP record support (MMAP2). We have identified cases where it would not report the correct mapping information, clone(VM_CLONE) but with separate pids. We will revisit the support once we find a solution for this case. The patch changes the kernel to return

Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread David Ahern
On 10/17/13 8:28 AM, Stephane Eranian wrote: For now, we disable the extended MMAP record support (MMAP2). We have identified cases where it would not report the correct mapping information, clone(VM_CLONE) but with separate pids. We will revisit the support once we find a solution for this

Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread Stephane Eranian
On Thu, Oct 17, 2013 at 5:54 PM, David Ahern dsah...@gmail.com wrote: On 10/17/13 8:28 AM, Stephane Eranian wrote: For now, we disable the extended MMAP record support (MMAP2). We have identified cases where it would not report the correct mapping information, clone(VM_CLONE) but with

Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread David Ahern
On 10/17/13 9:57 AM, Stephane Eranian wrote: On Thu, Oct 17, 2013 at 5:54 PM, David Ahern dsah...@gmail.com wrote: On 10/17/13 8:28 AM, Stephane Eranian wrote: For now, we disable the extended MMAP record support (MMAP2). We have identified cases where it would not report the correct mapping

Re: [PATCH v2] perf: disable PERF_RECORD_MMAP2 support

2013-10-17 Thread Stephane Eranian
On Thu, Oct 17, 2013 at 5:59 PM, David Ahern dsah...@gmail.com wrote: On 10/17/13 9:57 AM, Stephane Eranian wrote: On Thu, Oct 17, 2013 at 5:54 PM, David Ahern dsah...@gmail.com wrote: On 10/17/13 8:28 AM, Stephane Eranian wrote: For now, we disable the extended MMAP record support