Messages in this thread | | | Date | Thu, 15 Dec 2005 13:59:21 -0800 | From | Stephane Eranian <> | Subject | Re: [Perfctr-devel] 2.6.15-rc5-git3 perfmon2 new code base + libpfm available |
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Will,
On Thu, Dec 15, 2005 at 04:22:28PM -0500, William Cohen wrote: > Stephane Eranian wrote:
> >I have released a new version of the perfmon base package. > >This release is relative to 2.6.15-rc5-git3. > > > >I have also updated the library, libpfm-3.2, to match the kernel > >level changes. > > I downloaded the new version of perfmon and the matching libpfm. I built > everything on a p6 based machine. The kernel booted fine. I tried the > task_smpl_user in the libpfm examples. That crashed the kernel. What was > on the xterm: > > $ ./task_smpl_user ls > measuring at plm=0x8 > programming 2 PMCS and 2 PMDS > Segmentation fault > I have not tried this particular test program in a long time. I nfact, I would like to remove it from the suite because it does not make any real sense. In any case, it should not crash the kernel. I will investigate this. I don't think it it related to you using a P6. This is more the case of an error in the cleanup code in case the context cannot be created properly.
Does task_smpl work properly?
> snd_hwdep snd_timer emu10k1_gp snd gameport soundcore snd_page_alloc > Dec 15 15:54:40 trek kernel: EIP is at pfm_smpl_fmt_put+0x11/0x60 > Dec 15 15:54:40 trek kernel: Call Trace: > Dec 15 15:54:40 trek kernel: [<c0201ee7>] __pfm_create_context+0x167/0x440 > Dec 15 15:54:40 trek kernel: [<c010400c>] __switch_to+0x15c/0x220 > Dec 15 15:54:40 trek kernel: [<c0203f98>] sys_pfm_create_context+0x78/0xe0 > Dec 15 15:54:40 trek kernel: [<c010569d>] syscall_call+0x7/0xb
Thanks.
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