[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] QEMU commit 04bf2526ce breaks use of xen-mapcache
From: |
Anthony PERARD |
Subject: |
[Qemu-devel] QEMU commit 04bf2526ce breaks use of xen-mapcache |
Date: |
Tue, 25 Jul 2017 18:13:02 +0100 |
User-agent: |
Mutt/1.8.3 (2017-05-23) |
Hi,
Commits 04bf2526ce (exec: use qemu_ram_ptr_length to access guest ram)
start using qemu_ram_ptr_length() instead of qemu_map_ram_ptr().
That result in calling xen_map_cache() with lock=true, but this mapping
is never invalidated.
So QEMU use more and more RAM until it stop working for a reason or an
other. (crash if host have little RAM or stop emulating but no crash)
I don't know if calling xen_invalidate_map_cache_entry() in
address_space_read_continue() and address_space_write_continue() is the
right answer. Is there something better to do ?
(A good way to reproduce: Install Windows, so without pv driver.)
Thanks,
--
Anthony PERARD
- [Qemu-devel] QEMU commit 04bf2526ce breaks use of xen-mapcache,
Anthony PERARD <=