Messages in this thread | | | Date | Thu, 17 Sep 2015 14:41:26 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] iommu-common: Do not try to deref a null iommu->lazy_flush() pointer when n < pool->hint |
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On Thu, 17 Sep 2015 17:32:13 -0400 Sowmini Varadhan <sowmini.varadhan@oracle.com> wrote:
> 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().
Cool, thanks.
> Do you need me to respin the patch with the above info in the > commit id?
No, that's fine. I updated the changelog, added cc:stable and shall send it upstream next week.
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