Messages in this thread | | | Date | Wed, 3 Sep 2008 21:21:39 +0200 | From | "Luca Tettamanti" <> | Subject | Re: [2.6.27] early exception - lockdep related? |
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On Wed, Sep 3, 2008 at 10:28 AM, Luca Tettamanti <kronos.it@gmail.com> wrote: > On Wed, Sep 3, 2008 at 8:52 AM, Peter Zijlstra <peterz@infradead.org> wrote: >> On Tue, 2008-09-02 at 23:06 +0200, Luca Tettamanti wrote: >>> Hello, >>> I'm seeing an early exception (0e) - which seems related to lockdep - at >>> boot with many 2.6.27 kernels and I'm having troubles to track it down. >> >> Does it print one of these nice stack traces? > > Of course not ;-) It dies before dumping the stack trace (or at least > it doesn't make to the console - that machine has a serial port, but > my notebook does not... I've ordered a usb-to-serial adapter). > >>> The strange thing is that it comes and goes with different kernel >>> versions >> >> What kernel version did you generate the below with - and what config. > > -rc2 is working, after that it's intermittent. The last kernel that I > tried is -git from a couple of days ago. > >>> , but a "bad" kernel consistently fails across reboots. It also >>> seems to be sensitive to the configuration (attached) >> >> you seem to have forgotten that attachment. > > Ops, will send as soon as I get home.
Config is attached.
I tried netconsole, but got not output. No luck with qemu either :S
QEMU from SVN reports that: qemu: fatal: Trying to execute code outside RAM or ROM at 0x00000000000a0000
KVM goes a bit further but dies due to an exception while the kernel is still executing in real mode.
Luca [unhandled content-type:application/octet-stream] | |