xen.org
2011-May-22 03:07 UTC
[Xen-devel] [xen-4.0-testing bisection] complete build-amd64
branch xen-4.0-testing
xen branch xen-4.0-testing
job build-amd64
test xen-build
Tree: git://mariner.uk.xensource.com/qemu-xen-4.0-testing.git
Tree: http://hg.uk.xensource.com/xen-4.0-testing.hg
*** Found and reproduced problem changeset ***
Bug is in tree: http://hg.uk.xensource.com/xen-4.0-testing.hg
Bug introduced: 19eefd764f6f
Bug not present: c6034ee9b46e
changeset: 21492:19eefd764f6f
user: Olaf Hering <olaf@aepfle.de>
date: Sat May 21 07:57:03 2011 +0100
gcc-4.6 compile fix: build with -Wno-unused-but-set-variable
Avoid "error: variable ''unused'' set but not used
[-Werror=unused-but-set-variable]" with gcc 4.6.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
xen-unstable changeset: 23368:0f670f5146c8
xen-unstable date: Sat May 21 07:55:46 2011 +0100
For bisection revision-tuple graph see:
http://www.chiark.greenend.org.uk/~xensrcts/results/bisect.xen-4.0-testing.build-amd64.xen-build.html
Revision IDs in each graph node refer, respectively, to the Trees above.
----------------------------------------
Searching for failure / basis pass:
7171 fail [host=woodlouse] / 7136 ok.
Failure / basis pass flights: 7171 / 7136
Tree: git://mariner.uk.xensource.com/qemu-xen-4.0-testing.git
Tree: http://hg.uk.xensource.com/xen-4.0-testing.hg
Latest 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 9f8f91033546
Basis pass 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a c6034ee9b46e
Generating revisions with ./adhoc-revtuple-generator
git://mariner.uk.xensource.com/qemu-xen-4.0-testing.git#6d5b7ee3acfe8cc10681d2583a38398f7470ec2a-6d5b7ee3acfe8cc10681d2583a38398f7470ec2a
http://hg.uk.xensource.com/xen-4.0-testing.hg#c6034ee9b46e-9f8f91033546
pulling from http://hg.uk.xensource.com/xen-4.0-testing.hg
searching for changes
no changes found
pulling from http://hg.uk.xensource.com/xen-4.0-testing.hg
searching for changes
no changes found
Loaded 1001 nodes in revision graph
Searching for test results:
7174 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 19eefd764f6f
7147 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 9f8f91033546
7175 pass 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a c6034ee9b46e
7177 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 19eefd764f6f
7163 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 9f8f91033546
7142 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 9f8f91033546
7166 pass 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a c6034ee9b46e
7168 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 9f8f91033546
7169 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 82f6fd38f5c2
7154 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 9f8f91033546
7171 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 9f8f91033546
7136 pass 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a c6034ee9b46e
7172 fail 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a 19eefd764f6f
7173 pass 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a c6034ee9b46e
Searching for interesting versions
Result found: flight 7136 (pass), for basis pass
Result found: flight 7142 (fail), for basis failure
Repro found: flight 7166 (pass), for basis pass
Repro found: flight 7168 (fail), for basis failure
0 revisions at 6d5b7ee3acfe8cc10681d2583a38398f7470ec2a c6034ee9b46e
No revisions left to test, checking graph state.
Result found: flight 7136 (pass), for last pass
Result found: flight 7172 (fail), for first failure
Repro found: flight 7173 (pass), for last pass
Repro found: flight 7174 (fail), for first failure
Repro found: flight 7175 (pass), for last pass
Repro found: flight 7177 (fail), for first failure
*** Found and reproduced problem changeset ***
Bug is in tree: http://hg.uk.xensource.com/xen-4.0-testing.hg
Bug introduced: 19eefd764f6f
Bug not present: c6034ee9b46e
pulling from http://hg.uk.xensource.com/xen-4.0-testing.hg
searching for changes
no changes found
changeset: 21492:19eefd764f6f
user: Olaf Hering <olaf@aepfle.de>
date: Sat May 21 07:57:03 2011 +0100
gcc-4.6 compile fix: build with -Wno-unused-but-set-variable
Avoid "error: variable ''unused'' set but not used
[-Werror=unused-but-set-variable]" with gcc 4.6.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
xen-unstable changeset: 23368:0f670f5146c8
xen-unstable date: Sat May 21 07:55:46 2011 +0100
Revision graph left in
/home/xc_osstest/results/bisect.xen-4.0-testing.build-amd64.xen-build.{dot,ps,png,html}.
----------------------------------------
7177: ALL FAIL
flight 7177 xen-4.0-testing real-bisect [real]
http://www.chiark.greenend.org.uk/~xensrcts/logs/7177/
Tests which did not succeed:
build-amd64 4 xen-build fail
jobs:
build-amd64 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
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Ian Jackson
2011-May-23 14:01 UTC
[Xen-devel] Re: [xen-4.0-testing bisection] complete build-amd64
Ian Jackson writes ("[xen-4.0-testing bisection] complete
build-amd64"):> *** Found and reproduced problem changeset ***
>
> Bug is in tree: http://hg.uk.xensource.com/xen-4.0-testing.hg
> Bug introduced: 19eefd764f6f
> Bug not present: c6034ee9b46e
>
>
> changeset: 21492:19eefd764f6f
> user: Olaf Hering <olaf@aepfle.de>
> date: Sat May 21 07:57:03 2011 +0100
>
> gcc-4.6 compile fix: build with -Wno-unused-but-set-variable
>
> Avoid "error: variable ''unused'' set but not
used
> [-Werror=unused-but-set-variable]" with gcc 4.6.
>
> Signed-off-by: Olaf Hering <olaf@aepfle.de>
> xen-unstable changeset: 23368:0f670f5146c8
> xen-unstable date: Sat May 21 07:55:46 2011 +0100
Leaving aside the debugging of the reason for this:
I think this demonstrates that it''s a bad idea to backport changes
immediately from xen-unstable into earlier trees.
Changes which allegedly fix build system or OS incompatibilties are
particularly bad for this, because it is those changes which are
themselves most likely to (a) have hard to predict outcomes (b) break
the build (c) in a way not detected by a developer''s smoke test.
Ian.
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