Re: [PATCH] iommu-common: Do not try to deref a null iommu->lazy_flush() pointer when n < pool->hint

[Sowmini Varadhan]

On (09/17/15 14:26), Andrew Morton wrote:
> Patch looks good.
> 
> But I don't know which kernel versions need the fix.  So, when fixing a
> bug please always describe the end-user visible effects of that bug. 
> Under what circumstances did your kernel crash?
> 

I had a sparc kernel that was crashing when I was trying to process
some very large perf.data files- the crash happens when the scsi
driver calls into dma_4v_map_sg and thus the iommu_tbl_range_alloc().

Do you need me to respin the patch with the above info in the 
commit id?

--Sowmini
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/