Messages in this thread | | | Subject | Re: possible deadlock in send_sigio | From | Waiman Long <> | Date | Thu, 11 Jun 2020 21:55:23 -0400 |
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On 6/11/20 7:55 PM, Boqun Feng wrote: > Hi Peter and Waiman, > > On Thu, Jun 11, 2020 at 12:09:59PM -0400, Waiman Long wrote: >> On 6/11/20 10:22 AM, Peter Zijlstra wrote: >>> On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote: >>> >>>> There was an old lockdep patch that I think may address the issue, but was >>>> not merged at the time. I will need to dig it out and see if it can be >>>> adapted to work in the current kernel. It may take some time. >>> Boqun was working on that; I can't remember what happened, but ISTR it >>> was shaping up nice. >>> >> Yes, I am talking about Boqun's patch. However, I think he had moved to >> another company and so may not be able to actively work on that again. >> > I think you are talking about the rescursive read deadlock detection > patchset: > > https://lore.kernel.org/lkml/20180411135110.9217-1-boqun.feng@gmail.com/ > > Let me have a good and send a new version based on today's master of tip > tree. > > Regards, > Boqun
Good to hear back from you. I thought you may not able to work on it again.
Cheers, Longman
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