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Diffstat (limited to 'results/scraper/launchpad-without-comments/1585971')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1585971 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1585971 b/results/scraper/launchpad-without-comments/1585971 new file mode 100644 index 000000000..a85a5c4ec --- /dev/null +++ b/results/scraper/launchpad-without-comments/1585971 @@ -0,0 +1,20 @@ +Host system crashes on qemu with DMA remapping + +Hy, + +the host system crashes completely, when i try to pass an physical device without boot option intel_iommu=on set. In older kernel versions you didn't have to pass that option. + +I wonder if this can be easily checked by asking iommu state, avoiding a crash of the complete system. + +My data: +cpu model: Intel(R) Core(TM) i7 CPU +qemu version: 2.4.1-r2 +kernel version: 4.1.2 x86_64 +command line: +qemu-system-x86_64 -enable-kvm -drive file=/vms/prod/fw/fw.iso,if=virtio,format=raw -drive file=/vms/prod/fw/swap,if=virtio,format=raw -drive file=/vms/prod/fw/fwdata.iso,if=virtio,format=raw -m 512 -nographic -kernel /data/kernels/vmlinuz-2.6.36-gentoo-r8 -append "root=/dev/vda console=ttyS0 earlyprintk=serial" -net nic,model=virtio,macaddr=DE:AD:BE:EF:2D:AD -net tap,ifname=tapfw0,script=/etc/qemu/qemu-ifup -device pci-assign,host=03:00.0 + +There are also more detailed informations (if needed) here: +https://forums.gentoo.org/viewtopic-p-7923976.html + +Thanks, +Antonios. \ No newline at end of file |