Re: [Xen-devel] [xen-4.4-testing test] 66583: regressions - FAIL

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 22.12.15 at 14:55, <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> On Mon, 21 Dec 2015, Jan Beulich wrote:
>> >>> On 20.12.15 at 13:25, <osstest-admin@xxxxxxxxxxxxxx> wrote:
>> > flight 66583 xen-4.4-testing real [real]
>> > http://logs.test-lab.xenproject.org/osstest/logs/66583/ 
>> > 
>> > Regressions :-(
>> > 
>> > Tests which did not succeed and are blocking,
>> > including tests which could not be run:
>> >  build-amd64-prev              5 xen-build                 fail REGR. vs. 
> 66458
>> >  build-i386-prev               5 xen-build                 fail REGR. vs. 
> 66458
>> 
>> Ian, Stefano,
>> 
>> is one of you two looking into this?
>> 
>> block-qcow.c: In function 'get_cluster_offset':
>> block-qcow.c:444:3: error: 'tmp_ptr' may be used uninitialized in this 
> function [-Werror=maybe-uninitialized]
>>    memcpy(tmp_ptr, l1_ptr, 4096);
>>    ^
>> block-qcow.c:619:7: error: 'tmp_ptr2' may be used uninitialized in this 
> function [-Werror=maybe-uninitialized]
>>    if (write(s->fd, tmp_ptr2, 4096) != 4096) {
>>        ^
>> cc1: all warnings being treated as errors
>> 
> /home/osstest/build.66583.build-amd64-prev/xen/tools/blktap/drivers/../../../to
> ols/Rules.mk:89: recipe for target 'block-qcow.o' failed
>> make[5]: *** [block-qcow.o] Error 1
> 
> What does build-amd64-prev means? I cannot find the explanation of the
> test anywhere.

Iiuc it's the build pf the previous version, needed to test n-1 -> n
migration. I.e. (in line with the respective 4.3 failure) it indicates
that 4.3's qemu doesn't build.

Jan


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