Ahoy! Perhaps this is already solved, but I made the effort to test & record all of this, therefore here you are. :) https://bugzilla.redhat.com/show_bug.cgi?id=1062833 0. VirtIO disk - virtio-pc OK: - lspci-knn-3.14.0-0.rc2.git2.1.fc21.x86_64-virtio-pc-virtio-disk-OK https://bugzilla.redhat.com/attachment.cgi?id=863135 - dmesg-3.14.0-0.rc2.git2.1.fc21.x86_64-virtio-pc-virtio-disk-OK https://bugzilla.redhat.com/attachment.cgi?id=863136 1. IDE disk - ata_piix: - lspci-knn-3.14.0-0.rc2.git2.1.fc21.x86_64-ata_piix-ide-disk https://bugzilla.redhat.com/attachment.cgi?id=863137 - dmesg-3.14.0-0.rc2.git2.1.fc21.x86_64-ata_piix-ide-disk "WARNING: CPU: 0 PID: 1328 at lib/dma-debug.c:491 add_dma_entry+0x127/0x130()" "DMA-API: exceeded 7 overlapping mappings of pfn 2137" https://bugzilla.redhat.com/attachment.cgi?id=863138 2. SATA disk - ahci: - lspci-knn-3.14.0-0.rc2.git2.1.fc21.x86_64-ahci-sata-disk https://bugzilla.redhat.com/attachment.cgi?id=863139 - dmesg-3.14.0-0.rc2.git2.1.fc21.x86_64-ahci-sata-disk "WARNING: CPU: 0 PID: 1543 at lib/dma-debug.c:491 add_dma_entry+0x127/0x130()" "DMA-API: exceeded 7 overlapping mappings of pfn 2137" https://bugzilla.redhat.com/attachment.cgi?id=863140 3. SCSI disk - sym53c8xx: - lspci-knn-3.14.0-0.rc2.git2.1.fc21.x86_64-sym53c8xx-scsi-disk https://bugzilla.redhat.com/attachment.cgi?id=863151 - dmesg-3.14.0-0.rc2.git2.1.fc21.x86_64-sym53c8xx-scsi-disk "WARNING: CPU: 1 PID: 1514 at lib/dma-debug.c:491 add_dma_entry+0x127/0x130()" "DMA-API: exceeded 7 overlapping mappings of pfn 2137" ~~ "WARNING: CPU: 1 PID: 1514 at lib/dma-debug.c:1041 check_unmap+0x8b7/0x9b0()" "sym53c8xx 0000:00:07.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x0000000002137000] [size=512 bytes]" https://bugzilla.redhat.com/attachment.cgi?id=863152 4. VirtIO SCSI disk - 'virtio-scsi' & sym53c8xx: - lspci-knn-3.14.0-0.rc2.git2.1.fc21.x86_64-sym53c8xx-virtio-scsi-disk https://bugzilla.redhat.com/attachment.cgi?id=863153 - dmesg-3.14.0-0.rc2.git2.1.fc21.x86_64-sym53c8xx-virtio-scsi-disk "WARNING: CPU: 0 PID: 1530 at lib/dma-debug.c:491 add_dma_entry+0x127/0x130()" "DMA-API: exceeded 7 overlapping mappings of pfn 2137" ~~ "WARNING: CPU: 0 PID: 1530 at lib/dma-debug.c:1041 check_unmap+0x8b7/0x9b0()" "sym53c8xx 0000:00:07.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x0000000002137000] [size=512 bytes]" https://bugzilla.redhat.com/attachment.cgi?id=863154 5. USB disk - usb-storage: - lspci-knn-3.14.0-0.rc2.git2.1.fc21.x86_64-usb-storage-usb-disk https://bugzilla.redhat.com/attachment.cgi?id=863156 - lsusb-3.14.0-0.rc2.git2.1.fc21.x86_64-usb-storage-usb-disk https://bugzilla.redhat.com/attachment.cgi?id=863157 - lsusb-t-3.14.0-0.rc2.git2.1.fc21.x86_64-usb-storage-usb-disk https://bugzilla.redhat.com/attachment.cgi?id=863158 - dmesg-3.14.0-0.rc2.git2.1.fc21.x86_64-usb-storage-usb-disk "WARNING: CPU: 0 PID: 415 at lib/dma-debug.c:491 add_dma_entry+0x127/0x130()" "DMA-API: exceeded 7 overlapping mappings of pfn 2137" https://bugzilla.redhat.com/attachment.cgi?id=863159 Tested with: http://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/x86_64/os/images/ boot.iso 13-Feb-2014 15:45 362M checkisomd5: boot.iso: 434371185df324e28ff5652891ae4ea8 Fragment sums: 5a3e92cebf4721fcfad3e317bff6ac4ec9df98fedd9f53c3c3f2ed55c337 Fragment count: 20 Press [Esc] to abort check. Checking: 100.0% The media check is complete, the result is: PASS. It is OK to use this media. sha256sum: 2b6aac6e9b55c5f49f251340a4c28e091998f9fe3a6bdba7542f0f9b2d69ba8c boot.iso poma _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel
