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Re: [Xen-devel] [xen-4.5-testing test] 34157: regressions - FAIL



On Thu, 2015-02-05 at 13:00 +0000, Ian Campbell wrote:
> On Thu, 2015-02-05 at 12:53 +0000, Jan Beulich wrote:
> > >>> On 05.02.15 at 10:53, <Ian.Jackson@xxxxxxxxxxxxx> wrote:
> > > flight 34157 xen-4.5-testing real [real]
> > > http://www.chiark.greenend.org.uk/~xensrcts/logs/34157/ 
> > > 
> > > Regressions :-(
> > > 
> > > Tests which did not succeed and are blocking,
> > > including tests which could not be run:
> > >  test-amd64-amd64-rumpuserxen-amd64 11 
> > > rumpuserxen-demo-xenstorels/xenstorels fail REGR. vs. 34088
> > 
> > I have no clue what is going on here, ...
> 
> I saw something very similar in a recent flight on the osstest branch.
> Ian -- YHM about that somewhere (list wasn't ccd though).
> 
> It looks to be some sort of Heisenbug in the rump kernel stuff.

http://www.chiark.greenend.org.uk/~xensrcts/results/history.test-amd64-amd64-rumpuserxen-amd64.html

show a history of random failures at the xenstorels step.

At least the ones as far back as 33830 (the last one with logs still
available) all show signs of what looks like memory corruption of some
sort.

http://www.chiark.greenend.org.uk/~xensrcts/logs/33830/test-amd64-amd64-rumpuserxen-amd64/11.ts-rumpuserxen-demo-xenstorels.log
        GPF rip: 0x46ea1c, error_code=0
        Page fault at linear address 0x0, rip 0x13563, regs 0x469ff8, sp 
0x46a0a8, our_sp 0x469fe0, code 0
        Page fault in pagetable walk (access to invalid memory?).
        
http://www.chiark.greenend.org.uk/~xensrcts/logs/33846/test-amd64-amd64-rumpuserxen-amd64/11.ts-rumpuserxen-demo-xenstorels.log
        $VAR1 = {
                  'theirs' => 'STUB ``__sigaction14\'\' called
        device/ÂG:
        rumpxenstack: 
        could not access permissions for ÂG: Invalid argument
        
        rumpxenstack: xs_directory (device/ÂG): Invalid argument

http://www.chiark.greenend.org.uk/~xensrcts/logs/33925/test-amd64-amd64-rumpuserxen-amd64/11.ts-rumpuserxen-demo-xenstorels.log
        Similar to 33846

        
http://www.chiark.greenend.org.uk/~xensrcts/logs/34086/test-amd64-amd64-rumpuserxen-amd64/11.ts-rumpuserxen-demo-xenstorels.log
        rumpxenstack: 
        could not access permissions for mac: Invalid argument
        device/vif/0/mac = "5a:36:0e:26:00:05" 
        rumpxenstack: xs_directory (device/vif/0/mac): Bad file descriptor

http://www.chiark.greenend.org.uk/~xensrcts/logs/34127/test-amd64-amd64-rumpuserxen-amd64/11.ts-rumpuserxen-demo-xenstorels.log
        Page fault at linear address 0x256, rip 0x33e1c, regs 0x53f458, sp 
0x53f500, our_sp 0x53f440, code 0
        Thread: main
        RIP: e030:[<0000000000033e1c>] 
        RSP: e02b:000000000053f500  EFLAGS: 00010202
        RAX: 000000000025a927 RBX: 0000000000000246 RCX: 000000000053fe88
        RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000025a8b0
        RBP: 00000000001d55df R08: 0000000000454091 R09: 0000000000000000
        R10: 0000000000000000 R11: 0000000000000000 R12: 000000000053fe88
        R13: 0000000000000000 R14: 000000000025a8b0 R15: 0000000000000000
        base is 0x1d55df caller is 0x6e69616d20676e69
        base is 0x6c6c6163203d3d3d GPF rip: 0x13e00, error_code=0
        
http://www.chiark.greenend.org.uk/~xensrcts/logs/34157/test-amd64-amd64-rumpuserxen-amd64/11.ts-rumpuserxen-demo-xenstorels.log
        Another bad fd, on device/vbd but otherwise similar to 34086.

Ian.



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