linux-kernel - Re: apic doesn't work with 32bit kernel (fine with 64bit) [asus m2n-mx se+]

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <86802c440804131054y73fa94e3jd12172d206eea510@mail.gmail.com>
Date:	Sun, 13 Apr 2008 10:54:09 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Christoph Pfister" <christophpfister@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: apic doesn't work with 32bit kernel (fine with 64bit) [asus m2n-mx se+]

On Sun, Apr 13, 2008 at 5:59 AM, Christoph Pfister
<christophpfister@...il.com> wrote:
> Am Sonntag 13 April 2008 01:15:51 schrieb Yinghai Lu:
>
> > On Sat, Apr 12, 2008 at 12:20 PM, Christoph Pfister
>  >
>  > <christophpfister@...il.com> wrote:
>  > > Hi,
>  > >
>  > >  Using a new motherboard, I came across a kernel panic (dmesg using
>  > > 2.6.25-rc9 [x86_32] transcribed from screenshot attached; also dmesg when
>  > >  using "apic=debug").
>  > >  The system works nearly fine when using "noapic" (setting rtc doesn't
>  > > work).
>  > >
>  > >  Everything (including apic and rtc) works like a charm when I use the
>  > > x86_64 version with (nearly) the same kernel config (dmesg attached as
>  > > well).
>  >
>  > how about booting 64 bit apic=debug?
>
>  Attached.
>
>
>  > wonder if using kexec to load 32bit kernel from 64 bit kernel help.
>
>  What should it help? Btw, grabbed a good old RS232 cable to get more than 25
>  lines of dmesg :) - attached as well.

only difference, it seems 32bit enable io_apic after all cpus up.  and
64 bit will enable that just after first cpu.

YH
--
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/