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Re: File corruption?

On Sun, Jan 19, 2020 at 12:21:06PM -0600, Robert Nestor wrote:

> Thanks!  I followed Andrew?s instructions and got a photo of the stack
> trace and sent it to him directly.  Hope it helps him figure out what?s
> happening.

Thanks for the photo.  This is a problem in the DRM code.  It was fixed a
day or two ago, so if you update your kernel it won't happen any more.


> -bob
> On Jan 19, 2020, at 11:29 AM, Greg Troxel <> wrote:
> > Robert Nestor <> writes:
> > 
> >> Sorry for not being specific.  When I do the shutdown on a subsequent
> >> reboot all the filesystems are dirty forcing fsck to run.  Sometimes
> >> it finds some minor errors and repairs them.
> > 
> > ok - I am trying to separate "corruption", which means that files that
> > were not in the process of being written were damaged, from an unclean
> > shutdown with the usual non-frightening fixups.
> > 
> >> I?m running xfce4, so when I do the ?shutdown -r now? I see xfce4 and
> >> X exit bringing me back to the console display that was active when I
> >> booted the system.  As it goes thru the normal shutdown process it
> >> reaches a point where I get the assertion error (something like
> >> ?uvm_page locked against owner?) followed by a stack trace and then
> >> quickly followed by the system rebooting.  There is no crash file
> >> generated.
> > 
> > (Definitely follow ad@'s advice here.)
> > 
> > You can of course exit xfe4 back to console before starting this.
> > 
> >> I haven?t changed any crash parameters from the stock setup.  I seem
> >> to recall there used to be one for kernel crashes, but can?t find it
> >> now.  I guess next step is to boot up with the ?-d? flag and see if I
> >> can get something useful.  Is that correct?
> > 
> > See swapctl(8) and fstab(5).  Basically you need to configure a dump
> > device (almost always the swap device).  swapctl -l is useful.
> > 
> > But, it is likely that after sending ad@ a picture, you won't have to
> > debug this any more...

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