On 16/03/2015 16:59, Chris Takemura wrote: > Hi everyone, > > We're using qemu as a device model for xen 4.4. Lately we've been > having qemu crashes with this output: > > lsi_scsi: error: Unhandled writeb 0xff = 0x0 > > lsi_scsi: error: Unhandled writeb 0x100 = 0x0 > > lsi_scsi: error: Unhandled writeb 0x101 = 0x0 > > lsi_scsi: error: Unhandled writeb 0x102 = 0x0 > > qemu-system-i386: /home/chris/qemu/hw/scsi/lsi53c895a.c:541: lsi_do_dma: > Assertion `s->current' failed. > > > This is with a clean qemu-2.1.0 tree, built for Xen. > > I confirmed that commit d1d74664ea99cdc571afee12e31c8625595765b0 is > present in our code. (As described in the thread that begins > with > http://qemu-devel.nongnu.narkive.com/LtGj28sZ/win2k8-32-bit-mix-of-ide-and-scsi-assertion > ).
What guest is this? The answer is basically "do not use this device model", it is old and buggy and newer guests do not even ship the driver anymore. Paolo
