Bad traps for unaligned access in STM instruction

Lluís Batlle i Rossell viric at
Tue Sep 18 11:46:27 EDT 2012

On Tue, Sep 18, 2012 at 11:44:02AM -0400, Nicolas Pitre wrote:
> On Tue, 18 Sep 2012, Lluís Batlle i Rossell wrote:
> > In an ideal userland software world, the counters of the traps would be zero.
> > But they are not. And without fixup, the mkfs.btrfs fails to run properly, and
> > creates a broken filesystem that crashes the kernel.
> If a broken btrfs filesystem crashes the kernel, you should definitively 
> report it as a bug to the btrfs developers.  Filesystem code must be 
> immune to any kind of corruptions and gracefully cope with them.

Yes I know; I did report that.

Thank you

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