From: Philippe Elie Unless I miss something this look like a typo, one user reported to get error from the daemon: 'Unknown event for counter 1' (alpha ev6) and the behavior was better but not completly sane after trying this patch: he get spurious event for counter 1 when enabling only counter 0 but rarely now. No alpha box to test this. --- arch/alpha/oprofile/common.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -puN arch/alpha/oprofile/common.c~oprofile-alpha-fix arch/alpha/oprofile/common.c --- 25/arch/alpha/oprofile/common.c~oprofile-alpha-fix 2004-01-25 20:09:58.000000000 -0800 +++ 25-akpm/arch/alpha/oprofile/common.c 2004-01-25 20:09:58.000000000 -0800 @@ -57,7 +57,7 @@ op_axp_setup(void) /* Compute the mask of enabled counters. */ for (i = e = 0; i < model->num_counters; ++i) - if (ctr[0].enabled) + if (ctr[i].enabled) e |= 1 << i; reg.enable = e; _