Re: kern/54759 (vm.ubc_direct deadlock when read()/write() into mapping of itself)

To: ad%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, ad%NetBSD.org@localhost, jaromir.dolecek%gmail.com@localhost
Subject: Re: kern/54759 (vm.ubc_direct deadlock when read()/write() into mapping of itself)
From: ad%NetBSD.org@localhost
Date: Thu, 9 Apr 2020 23:14:24 +0000 (UTC)

Synopsis: vm.ubc_direct deadlock when read()/write() into mapping of itself

State-Changed-From-To: closed->open
State-Changed-By: ad%NetBSD.org@localhost
State-Changed-When: Thu, 09 Apr 2020 23:14:23 +0000
State-Changed-Why:
The fix blocks ubc_direct on UAOs which disables it for tmpfs; not good enough.

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