Re: Host Crash when re-running vDPA device creation script after interruption

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On Wed, Jul 09, 2025 at 08:59:13PM +0800, Wenli Quan wrote:
> On Wed, Jul 9, 2025 at 6:38 PM Dragos Tatulea <dtatulea@xxxxxxxxxx> wrote:
> >
> > On Wed, Jul 09, 2025 at 05:36:04PM +0800, Wenli Quan wrote:
> > > I am reporting an issue where the host system crashes when re-running
> > > a script that creates a vDPA device after interrupting its previous
> > > execution. I am attaching the script for your analysis, as I am unsure
> > > of the exact step causing the crash.
> > >
> > Thanks for catching this Wenli. We'll look into it.
> >
> > > # uname -r
> > > 6.16.0-rc2
> > > # sh vdpa-setup.sh  0000:b5:00.1 1
> > > interrupted by pressing Ctrl+C
> > Could you specify during which stage of the script do you interrupt it?
> 
> Interrupted after running for a few seconds.
>
I was not yet able to reproduce the issue.

Could you print out the commands of the debug script so that we can see
where it was interrupted? set -x should be enough.

> I encountered the same crash on both the 6.16.0-rc2 kernel and the one
> with the "[PATCH vhost] vdpa/mlx5: Fix release of uninitialized
> resources on error path" applied.
>
Right. This is another issue that is coming from mlx5_core.

Thanks,
Dragos
 




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