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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [xen-unstable bisection] complete test-amd64-i386-rhel6hvm-intel
branch xen-unstable xen branch xen-unstable job test-amd64-i386-rhel6hvm-intel test redhat-install Tree: linux git://git.eu.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git Tree: qemu git://hg.uk.xensource.com/HG/qemu-xen-unstable.git Tree: xen http://hg.uk.xensource.com/xen-unstable.hg *** Found and reproduced problem changeset *** Bug is in tree: xen http://hg.uk.xensource.com/xen-unstable.hg Bug introduced: 0a70aeba14e2 Bug not present: d5dfaa568441 changeset: 23657:0a70aeba14e2 user: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> date: Wed Jul 06 18:26:49 2011 +0100 libxl: sane disk backend selection and validation Introduce a new function libxl__device_disk_set_backend which does some sanity checks and determines which backend ought to be used. If the caller specifies LIBXL_DISK_BACKEND_UNKNOWN (which has the value 0), it tries PHY, TAP and QDISK in that order. Otherwise it tries only the specified value. libxl__device_disk_set_backend (and its helper function disk_try_backend) inherit the role (and small amounts of the code) from validate_virtual_disk. This is called during do_domain_create and also from libxl_disk_device_add (for the benefit of hotplug devices). It also now takes over the role of the scattered fragments of backend selection found in libxl_device_disk_add, libxl_device_disk_local_attach and libxl__need_xenpv_qemu. These latter functions now simply do the job for the backend they find has already been specified and checked. The restrictions on the capabilities of each backend, as expressed in disk_try_backend (and to an extent in libxl_device_disk_local_attach) are intended to be identical to the previous arrangements. In 23618:3173b68c8a94 combined with 23622:160f7f39841b, 23623:c7180c353eb2, "xl" effectively became much more likely to select TAP as the backend. With this change to libxl the default backend selected by the libxl__device_disk_set_backend is intended to once again to be PHY where possible. Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxx> For bisection revision-tuple graph see: http://www.chiark.greenend.org.uk/~xensrcts/results/bisect.xen-unstable.test-amd64-i386-rhel6hvm-intel.redhat-install.html Revision IDs in each graph node refer, respectively, to the Trees above. ---------------------------------------- Searching for failure / basis pass: 7980 fail [host=earwig] / 7922 ok. Failure / basis pass flights: 7980 / 7922 Tree: linux git://git.eu.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git Tree: qemu git://hg.uk.xensource.com/HG/qemu-xen-unstable.git Tree: xen http://hg.uk.xensource.com/xen-unstable.hg Latest 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 0a70aeba14e2 Basis pass 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 7e4404a8f5f9 Generating revisions with ./adhoc-revtuple-generator git://git.eu.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git#6d94b752e1363757f8eb4558e6f721a3e703cfe2-6d94b752e1363757f8eb4558e6f721a3e703cfe2 git://hg.uk.xensource.com/HG/qemu-xen-unstable.git#cd776ee9408ff127f934a707c1a339ee600bc127-cd776ee9408ff127f934a707c1a339ee600bc127 http://hg.uk.xensource.com/xen-unstable.hg#7e4404a8f5f9-0a70aeba14e2 pulling from http://hg.uk.xensource.com/xen-unstable.hg searching for changes no changes found pulling from http://hg.uk.xensource.com/xen-unstable.hg searching for changes no changes found Loaded 28 nodes in revision graph Searching for test results: 7995 fail 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 0a70aeba14e2 7889 [host=gall-mite] 7896 pass 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 7e4404a8f5f9 7904 [host=gall-mite] 7978 [host=itch-mite] 7914 [host=gall-mite] 7980 fail 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 0a70aeba14e2 7985 [host=itch-mite] 7922 pass 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 7e4404a8f5f9 7986 pass 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 7e4404a8f5f9 7987 fail 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 0a70aeba14e2 7989 pass 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 d5dfaa568441 7990 fail 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 0a70aeba14e2 7991 pass 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 d5dfaa568441 7992 fail 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 0a70aeba14e2 7993 pass 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 d5dfaa568441 Searching for interesting versions Result found: flight 7896 (pass), for basis pass Result found: flight 7980 (fail), for basis failure Repro found: flight 7986 (pass), for basis pass Repro found: flight 7987 (fail), for basis failure 0 revisions at 6d94b752e1363757f8eb4558e6f721a3e703cfe2 cd776ee9408ff127f934a707c1a339ee600bc127 d5dfaa568441 No revisions left to test, checking graph state. Result found: flight 7989 (pass), for last pass Result found: flight 7990 (fail), for first failure Repro found: flight 7991 (pass), for last pass Repro found: flight 7992 (fail), for first failure Repro found: flight 7993 (pass), for last pass Repro found: flight 7995 (fail), for first failure *** Found and reproduced problem changeset *** Bug is in tree: xen http://hg.uk.xensource.com/xen-unstable.hg Bug introduced: 0a70aeba14e2 Bug not present: d5dfaa568441 pulling from http://hg.uk.xensource.com/xen-unstable.hg searching for changes no changes found changeset: 23657:0a70aeba14e2 user: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> date: Wed Jul 06 18:26:49 2011 +0100 libxl: sane disk backend selection and validation Introduce a new function libxl__device_disk_set_backend which does some sanity checks and determines which backend ought to be used. If the caller specifies LIBXL_DISK_BACKEND_UNKNOWN (which has the value 0), it tries PHY, TAP and QDISK in that order. Otherwise it tries only the specified value. libxl__device_disk_set_backend (and its helper function disk_try_backend) inherit the role (and small amounts of the code) from validate_virtual_disk. This is called during do_domain_create and also from libxl_disk_device_add (for the benefit of hotplug devices). It also now takes over the role of the scattered fragments of backend selection found in libxl_device_disk_add, libxl_device_disk_local_attach and libxl__need_xenpv_qemu. These latter functions now simply do the job for the backend they find has already been specified and checked. The restrictions on the capabilities of each backend, as expressed in disk_try_backend (and to an extent in libxl_device_disk_local_attach) are intended to be identical to the previous arrangements. In 23618:3173b68c8a94 combined with 23622:160f7f39841b, 23623:c7180c353eb2, "xl" effectively became much more likely to select TAP as the backend. With this change to libxl the default backend selected by the libxl__device_disk_set_backend is intended to once again to be PHY where possible. Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxx> Revision graph left in /home/xc_osstest/results/bisect.xen-unstable.test-amd64-i386-rhel6hvm-intel.redhat-install.{dot,ps,png,html}. ---------------------------------------- 7995: ALL FAIL flight 7995 xen-unstable real-bisect [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/7995/ jobs: test-amd64-i386-rhel6hvm-intel fail ------------------------------------------------------------ sg-report-flight on woking.cam.xci-test.com logs: /home/xc_osstest/logs images: /home/xc_osstest/images Logs, config files, etc. are available at http://www.chiark.greenend.org.uk/~xensrcts/logs Test harness code can be found at http://xenbits.xensource.com/gitweb?p=osstest.git;a=summary _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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