Date: Thu, 9 Oct 2014 15:27:28 -0500
From: Chuck Ebbert <cebbert.lkml@gmail.com>
To: Frans Klaver <fransklaver@gmail.com>
Cc: Marc Burkhardt <marc@osknowledge.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: acpitool - /proc/acpi/wakeup
Message-ID: <20141009152728.4114ab8c@as>
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On Thu, 9 Oct 2014 22:16:11 +0200
Frans Klaver <fransklaver@gmail.com> wrote:

> On Thu, Oct 9, 2014 at 9:58 PM, Marc Burkhardt <marc@osknowledge.org> wrote:
> >
> >
> >>On Thu, Oct 9, 2014 at 9:42 PM, Marc Burkhardt <marc@osknowledge.org>
> >>wrote:
> >>> I upgraded from 3.10 on that machine. 3.12 didn't work for me due to
> >>a hibernation bug. The rest was left out...  :/
> >>
> >>If you still have the 3.12 kernel around, could you test if acpitool
> >>-e worked there?
> >
> > Let me ask you a question: does it make sense to test 3.12 again because you know there's something changed regarding /proc/acpi/... or because it's the kernel I broke up on upgrading?
> 
> Never mind. It broke after 3.14. I'll bisect.
> 

The below patch fixes it for me. Looks like the line sizes changed
and some are now exactly the right length to make it loop forever
reading /proc/acpi/wakeup:


--- a/src/acpitool.cpp
+++ b/src/acpitool.cpp
@@ -417,7 +417,7 @@ int Do_Fan_Info(int verbose)
 int Show_WakeUp_Devices(int verbose)
 {
     ifstream file_in;
-    char *filename, str[40];
+    char *filename, str[80];
     
     filename = "/proc/acpi/wakeup";
     
@@ -438,13 +438,13 @@ int Show_WakeUp_Devices(int verbose)
     }
     else
     {
-	file_in.getline(str, 40);           // first line are just headers //
+	file_in.getline(str, 80);           // first line are just headers //
 	cout<<"   "<<str<<endl;
 	cout<<"  ---------------------------------------"<<endl;
         int t = 1;
 	while(!file_in.eof())
 	{
-	    file_in.getline(str, 40);
+	    file_in.getline(str, 80);
 	    if (strlen(str)!=0)                     // avoid printing last empty line //
 	    {
 		cout<<"  "<<t<<". "<<str<<endl;
--
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