[Bug 100550] New: qemu crashes after qemu+spice uses all memory reading webdav data from guest

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Apr 4 09:29:12 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=100550

            Bug ID: 100550
           Summary: qemu crashes after qemu+spice uses all memory reading
                    webdav data from guest
           Product: Spice
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: server
          Assignee: spice-bugs at lists.freedesktop.org
          Reporter: bugzilla at victortoso.com

The problem happens when I'm limiting the bandwidth between client <-> server
(using latency tool [0]). Using something like 5ms 20M, and trying to transfer
a 4GB file from the guest fs to the shared folder will eventually lead to all
memory being used and qemu process being killed.

Nautilus points out the read to start > 100 MB/s and it is around 50 MB/s at
the time it freezes. This is much more then the connection between client <->
server.

[0] https://github.com/freddy77/latency

Surprisingly, nothing interesting while using valgrind --tool=massif
--trace-children=yes and memcheck did not print anyting after process is
killed.

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