Re: [Vserver] kernel bug

From: Herbert Poetzl <herbert_at_13thfloor.at>
Date: Tue 28 Nov 2006 - 14:54:58 GMT
Message-ID: <20061128145458.GB23131@MAIL.13thfloor.at>

On Tue, Nov 28, 2006 at 08:11:35AM +0100, Andreas Baetz wrote:
> On Sunday 26 November 2006 23:22, Herbert Poetzl wrote:
> > On Fri, Nov 24, 2006 at 08:11:39AM +0100, Andreas Baetz wrote:
> > > On Thursday 23 November 2006 18:49, Herbert Poetzl wrote:
> > > > On Thu, Nov 23, 2006 at 02:43:13AM +0100, Herbert Poetzl wrote:
> > > > >
> > > > > thanks, should be fixed in the next release
> > > >
> > > > vs2.0.2.2-rc8 is out ...
> > >
> > > I tried vs2.0.2.2-rc8 with 2.6.18.3, the vserver starts ok, no
> > > errors, but when I stopped it, the whole system freezed.
> > > Right after "Deconfiguring network interfaces...done."
> >
> > okay, maybe you get around, the stack trace of
> > all processes would probably tell us more ...
> I wrote down some of the trace output by hand:

hmm, the numbers of those dumps would be interesting,
especially if you have an unstripped kernel (vmlinux)
available, so we can figure _where_ this happens

so a serial console or some other means of recording
them would be very helpful, if not available, try
with a photo camera ...

> BUG: unable to handle kernel NULL pointer dereference at virtual
> address 00000005
> printing eip:
> c0104118

one of those addresses is listed above, you might
be able to get thre required info with:

addr2line -e vmlinux c0104118

another option to identify the location is the code
sequence dumped at the end (2 digit block)

TIA,
Herbert

PS: would be interesting to see if you encounter
    the same issues with 2.1.1.2.3 (if you find the
    time to test)

> *pde = 00000000
> Kernel panic - not syncing: Fatal exception in interrupt
>
> after pressing sysrq-T:
>
> rb_insert_color
> do_nanosleep
> hrtimer_nanosleep
> __fput
> hrtimer_wakeup
> sys_nanosleep
> sysenter_past_esp
> vserver S C01218db 0 23266 23227 23267 23269 23240 (NOTLB)
> ..
> Call Trace:
> do_wait
> __alloc_pages
> kernel_fpu_begin
> eligible_child
> do_wait
> do_sigaction
> default_wake_function
> sys_wait4
> sys_waitpid
> syscall_call
> vwait R running 0 23267 23266 (NOTLB)
> rc R running 0 23269 23227 23266 (L-TLB)
>
> >
> > TIA,
> > Herbert
> >
>
> Andreas
>
>
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