[Bugme-new] [Bug 10804] New: /proc/sys/kernel/nmi_watchdog controls nmi_watchdog_enabled and not nmi_watchdog

[bugme-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=10804

           Summary: /proc/sys/kernel/nmi_watchdog controls
                    nmi_watchdog_enabled and not nmi_watchdog
           Product: Process Management
           Version: 2.5
     KernelVersion: 2.6.23
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: process_other at kernel-bugs.osdl.org
        ReportedBy: ralph at inputplus.co.uk


nmi.c has two variables, nmi_watchdog and nmi_watchdog_enabled.  The
former can be set on the boot command line.  However, there's also a
/proc/sys/kernel/nmi_watchdog but confusingly this edits
nmi_watchdog_enabled and not the command line nmi_watchdog.  Can the
sysctl filename be changed to nmi_watchdog_enabled to match the code
and make it clear that the boot-time nmi_watchdog isn't being changed?

Frequent advice to users suffering hard hang-ups is to enable the
nmi_watchdog, there's evidence that them, and me, have to then puzzle
over why writing 2 to /proc/sys/kernel/nmi_watchdog isn't working.


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