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 theQEMU 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 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html