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Date: Sat, 18 Oct 2008 18:49:18 +0200 From: Mauro Andreolini <mauro.andreolini@...more.it> To: linux-kernel@...r.kernel.org, mauro.andreolini@...more.it Subject: LatencyTop problem Hi everyone, I tried to get latencytop (Debian testing package, v.0.4) running on a 2.6.27 vanilla kernel. When I try to execute latencytop as root, I get the following message: Error writing to /proc/sys/kernel/latencytop: No such file or directory Error writing to /proc/sys/kernel/latencytop: No such file or directory Are you root? Please enable the CONFIG_LATENCYTOP configuration in your kernel. Exiting... I am pretty sure that the CONFIG_LATENCYTOP is set in the kernel. I tried to download and apply the latencytop patch, but it rejects some hunks. It seems as if the executable wants to open /proc/sys/kernel/latencytop for writing but it can't, because the piece of kernel code that enables it (kernel/latencytop.c) does not create that /proc file. The code to enable /proc/sys/kernel/latencytop is contained in the kernel patch from the project home page, anyway. Instead, reading the code in the 2.6.27 kernel, a "latency_stats" file should be created, but that is not present under both the /proc and /sys filesystems. Could anyone of you point me to a procedure to get latencytop working with a recent kernel? Thank you in advance. Mauro Andreolini -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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