On Tue, 2008-10-14 at 08:13 +0300, Pekka Enberg wrote:Eduard, here's a fix for the userspace counterpart: From: Pekka Enberg <penberg@cs.helsinki.fi> Date: Tue, 14 Oct 2008 10:03:51 +0300 Subject: [PATCH] kmemtrace: enable tracing in kmemtraced If kmemtrace is not enabled at boot, we need to enable it before we start relaying data to userspace. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> --- kmemtraced.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/kmemtraced.c b/kmemtraced.c index 217478d..5cc1ada 100644 --- a/kmemtraced.c +++ b/kmemtraced.c @@ -165,8 +165,6 @@ int main(int argc, char *argv[]) if (!readers) panic("Out of memory!\n"); - write_str("/sys/kernel/debug/kmemtrace/enabled", "0"); - printf("Copying /proc/kallsyms...\n"); copy_kallsyms(); @@ -180,6 +178,8 @@ int main(int argc, char *argv[]) strerror(errno)); } + write_str("/sys/kernel/debug/kmemtrace/enabled", "1"); + printf("Logging... Press Control-C to stop.\n"); while (sigwait(&signals, &signal) == 0) { -- 1.5.4.3 --
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