On Thu, 10 Aug 2023 14:18:50 +0100 Jonathan Cameron via <qemu-devel@nongnu.org> wrote:
> On Fri, 4 Aug 2023 09:15:13 -0700 > Richard Henderson <richard.hender...@linaro.org> wrote: > > > On 8/4/23 04:09, Mikhail Tyutin wrote: > > > Apply save_iotlb_data() to io_readx() as well as to io_writex(). This > > > fixes > > > SEGFAULT on qemu_plugin_hwaddr_phys_addr() call plugins for addresses > > > inside of > > > MMIO region. > > > > > > Signed-off-by: Dmitriy Solovev<d.solo...@yadro.com> > > > Signed-off-by: Mikhail Tyutin<m.tyu...@yadro.com> > > > Reviewed-by: Richard Henderson<richard.hender...@linaro.org> > > > --- > > > v3: > > > - commit wording update > > > > > > > > > accel/tcg/cputlb.c | 36 +++++++++++++++++++++--------------- > > > 1 file changed, 21 insertions(+), 15 deletions(-) > > > > Queued to tcg-next. > > I'm not 100% sure it's related but with qemu/master as of a few hours ago > I'm getting a segfault with backtrace (can't copy from relevant machine) > indicating that > io_writex () is calling memory_region_dispatch_write() and getting > a segfault on > > if (mr->alias) > > mr has very suspect content of 0x13001300130013 > > The segfault is intermittent (otherwise I get hang later in boot) and > I can only get it to trigger with multiple cpus. > > x86 max cpu and q35 machine. Resolved by https://gitlab.com/rth7680/qemu/-/commit/78e096b365326dd2b287e914b393d914dbae3b66 softmmu: Use async_run_on_cpu in tcg_commit Thanks Richard. > > Jonathan > > > > > > > > r~ > > > > >
