Messages in this thread | | | Date | Wed, 25 Jul 2012 12:04:33 +0200 | From | Rolf Eike Beer <> | Subject | Re: [PATCH] scsi: virtio-scsi: Fix address translation failure of HighMem pages used by sg list |
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Am 25.07.2012 10:29, schrieb Wang Sen: > When using the commands below to write some data to a virtio-scsi LUN > of the > QEMU guest(32-bit) with 1G physical memory(qemu -m 1024), the qemu > will crash. > > # sudo mkfs.ext4 /dev/sdb (/dev/sdb is the virtio-scsi LUN.) > # sudo mount /dev/sdb /mnt > # dd if=/dev/zero of=/mnt/file bs=1M count=1024 > > In current implementation, sg_set_buf is called to add buffers to sg > list which > is put into the virtqueue eventually.
The next sentence is somehow broken:
> But there are some HighMem pages in > table->sgl can not get virtual address by sg_virt.
Maybe something like "But _if_ there are ... _you_ can not get ..."?
Eike
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