Messages in this thread | | | Date | Thu, 31 Jan 2013 12:18:23 +0100 | From | Ingo Molnar <> | Subject | Re: [BUG?] false positive in soft lockup detector while unlzma initramfs on slow cpu |
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* Andrew Morton <akpm@linux-foundation.org> wrote:
> On Tue, 29 Jan 2013 10:33:48 -0500 > Don Zickus <dzickus@redhat.com> wrote: > > > --- a/kernel/watchdog.c > > +++ b/kernel/watchdog.c > > @@ -79,6 +79,14 @@ static int __init softlockup_panic_setup(char *str) > > } > > __setup("softlockup_panic=", softlockup_panic_setup); > > > > +static int __init watchdog_thresh_setup(char *str) > > +{ > > + watchdog_thresh = simple_strtoul(str, NULL, 0); > > + > > + return 1; > > +} > > +__setup("watchdog_thresh=", watchdog_thresh_setup); > > I wonder if there's some magical way in which we can set any > sysctl from the kernel command line. Add > sys.vm.min_free_kbytes=42 to the command line, walk the > hierarchy late in boot...
A facility like that would be totally awesome - we could remove a lot of duplicated and outright inconsistent (often missing) __setup() hackery that way.
Single source of information and all that.
Thanks,
Ingo
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