> -----Original Message----- > From: Peter Maydell [mailto:peter.mayd...@linaro.org] > Sent: Saturday, November 01, 2014 1:07 AM > To: Wangkai (Kevin,C) > Cc: qemu-devel@nongnu.org; Lee yang > Subject: Re: [Qemu-devel] using qemu arm bring up 2 cpus on x86, hang > up on guest file system > > On 31 October 2014 03:46, Wangkai (Kevin,C) <wangka...@huawei.com> > wrote: > > Hi all, > > I am using qemu-system-arm emulate armv7 with 2 cpus on x86_64 host, > > when I do the command tar -xf xxx.tar or rm -r xxx, after a while, > Guest system hang up on file system: > > > > When mmc request a block, that cannot receive a request done event, > it seems request done irq loss. > > After I change the cpu to single core, the problem was solved. > > > > Is there some problem on qemu multi-core emulation? > > I forget if we have fixed any bugs on the 32 bit SMP emulation recently. > I suggest trying a current QEMU master build, though, to see if your > problem has been fixed. > > Note that emulating more than one guest core is always going to be > slower than a "-smp 1" configuration if you're not using KVM, though, > so often it's better to just use -smp 1 anyway. > > -- PMM [Wangkai (Kevin,C)]
I have got the master branch of QEMU, and tried several times, it was fine. The problem may be fixed. Thank you.
