On 21/04/16 11:37, Olaf Hering wrote: > On my Fujitsu Esprimo Mobile M9400 laptop the upstream dom0 kernel does > not find the DVD drive. The DVD drive is found with native kernels and > also with xenlinux based kernels, like 4.1 based openSUSE Leap. > > [ 6.242286] ata_piix 0000:00:1f.1: version 2.13 > [ 6.242625] xen: registering gsi 19 triggering 0 polarity 1 > [ 6.242635] Already setup the GSI :19 > [ 6.250792] ata_piix: probe of 0000:00:1f.1 failed with error -22 > > After some investigation it turned out that irq_to_desc() returns > nothing for the piix PCI device, as a result EINVAL is returned. > The callchain is like: > piix_init_one > ata_pci_sff_activate_host (legacy_mode case) > devm_request_threaded_irq > irq_to_desc > > This happens with 4.4, 4.5 and 4.6 based dom0 kernels. > > Any idea whats happening here, where to look further?
You might want to test Stefano's patch trying to fix a similar issue: http://lists.xen.org/archives/html/xen-devel/2016-04/msg02512.html Juergen > > I'm attaching a collection of logfiles, like dmesg, lspci and the used > debug patch, along with the used .config for the dom0 kernel. > > Thanks, > > Olaf > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
