Messages in this thread | | | Date | Fri, 23 Mar 2018 08:28:07 +0100 (CET) | From | Marta Rybczynska <> | Subject | Re: [RFC PATCH] nvme: avoid race-conditions when enabling devices |
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> On Wed, Mar 21, 2018 at 05:10:56PM +0100, Marta Rybczynska wrote: >> >> The problem may happen also with other device doing its probe and >> nvme running its workqueue (and we probably have seen it in practice >> too). We were thinking about a lock in the pci generic code too, >> that's why I've put the linux-pci@ list in copy. > > Yes, this is a generic problem in the PCI core. We've tried to fix it > in the past but haven't figured it out yet. > > See 40f11adc7cd9 ("PCI: Avoid race while enabling upstream bridges") > and 0f50a49e3008 ("Revert "PCI: Avoid race while enabling upstream > bridges""). > > It's not trivial, but if you figure out a good way to fix this, I'd be > thrilled. >
Bjorn, Srinath, are you aware of anyone working on an updated fix for this one?
Marta
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