[Bug 110717] [Regression][bisected] Patch: update buffer descriptors ... causes hangs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110717

            Bug ID: 110717
           Summary: [Regression][bisected]  Patch: update buffer
                    descriptors ... causes hangs
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: gw.fossdev at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

With 78e35df52aa2f7d770f929a0866a0faa89c261a9 I see hangs on  [AMD/ATI] Baffin
[Radeon RX 560D  / Pro 450/455/460/555/560] (rev e5). 

Specifically, when I run "Outlast" through a virgl/vtest setup with this
hardware on the host, the whole X-session hangs after the very first loading
screen. I can still log into the machine but even a reboot hangs and a reboot
can only be forced by ctrl-alt-sysrq-B (or turning the laptop on and off). 


I'll try to get a host trace to add a bit more info here.

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