Date: Sun, 31 Dec 2017 09:36:24 +0100 From: Matthias Apitz <guru@unixarea.de> To: freebsd-current@freebsd.org Cc: cem@freebsd.org Subject: Re: panic: invalid bcd 194 Message-ID: <20171231083624.GA2175@c720-r314251> In-Reply-To: <20171230214819.GA2191@c720-r314251> References: <20171230210711.GA75976@c720-r314251> <20171230211154.GT1684@kib.kiev.ua> <20171230214819.GA2191@c720-r314251>
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El día sábado, diciembre 30, 2017 a las 10:48:19p. m. +0100, Matthias Apitz escribió:
> El día sábado, diciembre 30, 2017 a las 11:11:54p. m. +0200, Konstantin Belousov escribió:
>
> > > > > static inline u_char
> > > > > bcd2bin(int bcd)
> > > > > {
> > > > >
> > > > > KASSERT(bcd >= 0 && bcd < LIBKERN_LEN_BCD2BIN,
> > > > > ("invalid bcd %d", bcd));
> > > > > return (bcd2bin_data[bcd]);
> > > > > }
> > > > >
> > For an immediate relief, enter the BIOS setup and set up the date. Try to
> > change it even if the BIOS date looks fine.
> >
> > artc(4) should do more validation of the date read from CMOS, but this is
> > a known issue.
>
> The problem with this hardware (Acer C720 Chromebook) is, there is no
> BIOS setup, only somekind of SeaBIOS w/o any setup. Btw: An older
> CURRENT from an USB key r285885 boots fine.
I have got a hint about that the problem showed up already in March this
year, even with some comment of mine in this thread:
http://freebsd.1045724.x6.nabble.com/panic-invalid-bcd-xxx-td6170480.html
In this tread is mentioned a patch as:
> cem@ posted this patch:
>
> http://dpaste.com/1K2W05E
>
> If someone can test it, I'll gladly commit it. The real-time clock will
> likely be wrong, but it won't panic with INVARIANTS.
but the link is expired. Has got someone this patch? I checked the SVN
for the file sys/sys/libkern.h there is no relevant change since March
2017. (cc'ed cem@)
I will let the C720 over night under power while sitting in the boot menu,
maybe this will fix the RTC battery issue.
Thanks
matthias
--
Matthias Apitz, ✉ guru@unixarea.de, ⌂ http://www.unixarea.de/ 📱 +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub
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