2018-03-29 9:50 GMT+01:00 Joerg Roedel <j...@8bytes.org>:
> On Tue, Mar 20, 2018 at 08:50:13PM +0000, Dmitry Safonov wrote:
>> Hmm, but this fixes my softlockup issue, because it's about time spent
>> in printk() inside irq-disabled section, rather about exiting the dmar-
>> clearing loop.
>> And on my hw doesn't make any difference to limit loop or not because
>> clearing a fault is much faster than hw could generate a new fault.
>> ITOW, it fixes the softlockup for me and the loop-related lockup can't
>> happen on hw I have (so it's the other issue, [possible?] on other hw).
>
> It might solve your issue, but someone else might still run into it with
> a different setup. An upstream fix needs to solve it for everyone.
Ok, I'll resend v4 with an additional patch to limit the loop.
Thanks,
Dmitry
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
