Date: Fri, 05 Aug 2011 13:45:31 +0200 From: Bernhard Froehlich <decke@bluelife.at> To: m irya <xmirya@gmail.com> Cc: freebsd-emulation@freebsd.org Subject: Re: VirtualBox/fbsd9/amd64 + Ubuntu11.04 guest = crash on install Message-ID: <b44fd7a2b05b205d5d0d0f3086a2bba1@bluelife.at> In-Reply-To: <CAK8LArO_uL6p_Q68jaKkMjtaQTxS52PufuXBWTHMvHM6DkOuXQ@mail.gmail.com> References: <CAK8LArNYCJJ9b9%2BKjaKiw_GV7kjR7oy7aAdJ7ce9Re4AO8x90w@mail.gmail.com> <427080d79cbe9c9bf25538540d9acb7b@bluelife.at> <CAK8LArO_TRH34y4r8FdyZjuO8V_UZ9sasLbfTKdnn1Z2_ZR7FA@mail.gmail.com> <c7127f3f98bbd2de2bb3abb10833912d@bluelife.at> <ea20b3765fb2bb0b6cd827132bac7d84@bluelife.at> <CAK8LArO_uL6p_Q68jaKkMjtaQTxS52PufuXBWTHMvHM6DkOuXQ@mail.gmail.com>
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On Fri, 5 Aug 2011 13:58:16 +0300, m irya wrote: > 2011/8/4 Bernhard Froehlich <decke@freebsd.org>: >> I think we found the cause of the issue. Could you please throw this >> patch in emulators/virtualbox-ose/files/ and rebuild the port? And then >> please try to reproduce the problem without enabling Host I/O caching. >> >> http://home.bluelife.at/patches/patch-src-VBox-Runtime-r3-freebsd-fileaio-freebsd.cpp >> >> The patch is still untested so please be careful. >> >> -- >> Bernhard Froehlich >> http://www.bluelife.at/ >> > > Back with the test results: > 1) w/o the patch and Host I/O caching for SATA off: Ubuntu-LTS > crashes on boot > 2) w/o the patch and Host I/O caching on: works (so the source of the > problem is correct) > 3) with the patch and caching off: works (so the patch somehow makes > it better) > > Now i'm proceeding with another test case: installing Win7 Home Basic: > 1) w/o the patch and caching off: VBox dies on early installation stage > 2) w/ the patch and caching off: proceeds further, but still dies at a > random point of time while copying files Could you please also generate a stacktrace for this case? I also know a few Windows 7 crashes that are not related to i/o but happen if you enable more than 1 vCPU. So you are probably hitting another bug or some other async i/o bug. > 3) w/ the patch and caching on: finally installed > > i'll do more testing with debug enabled next week. Thanks a lot for your feedback! -- Bernhard Fröhlich http://www.bluelife.at/
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