Re: Linux-next-20190823: x86_64/i386: prot_hsymlinks.c:325: Failed to run cmd: useradd hsym

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----- Original Message -----
> Hi Jan and Cyril,
> 
> On Mon, 26 Aug 2019 at 16:35, Jan Stancek <jstancek@xxxxxxxxxx> wrote:
> >
> >
> >
> > ----- Original Message -----
> > > Hi!
> > > > Do you see this LTP prot_hsymlinks failure on linux next 20190823 on
> > > > x86_64 and i386 devices?
> > > >
> > > > test output log,
> > > > useradd: failure while writing changes to /etc/passwd
> > > > useradd: /home/hsym was created, but could not be removed
> > >
> > > This looks like an unrelated problem, failure to write to /etc/passwd
> > > probably means that filesystem is full or some problem happend and how
> > > is remounted RO.
> >
> > In Naresh' example, root is on NFS:
> >   root=/dev/nfs rw
> >   nfsroot=10.66.16.123:/var/lib/lava/dispatcher/tmp/886412/extract-nfsrootfs-tyuevoxm,tcp,hard,intr
> 
> Right !
> root is mounted on NFS.
> 
> >
> > 10.66.16.123:/var/lib/lava/dispatcher/tmp/886412/extract-nfsrootfs-tyuevoxm
> > on / type nfs
> > (rw,relatime,vers=2,rsize=4096,wsize=4096,namlen=255,hard,nolock,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=10.66.16.123,mountvers=1,mountproto=tcp,local_lock=all,addr=10.66.16.123)
> > devtmpfs on /dev type devtmpfs
> > (rw,relatime,size=3977640k,nr_inodes=994410,mode=755)
> >
> > Following message repeats couple times in logs:
> >   NFS: Server wrote zero bytes, expected XXX
> >
> > Naresh, can you check if there are any errors on NFS server side?
> 
> I have re-tested the failed tests on next-20190822 and all get pass
> which is also
> using same NFS server [1] [2].

Thanks, that suggests some client side change between next-20190822 and next-20190823
might introduced it.

> 
> > Maybe run NFS cthon against that server with client running next-20190822
> > and next-20190823.
> 
> Thanks for the pointers.
> I will setup and run NFS cthon on next-20190822 and next-20190823.

I'll try to reproduce too.

> 
> >
> > >
> > > I do not see the kernel messages from this job anywhere at the job
> > > pages, is it stored somewhere?
> >
> > It appears to be mixed in same log file:
> >   https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20190823/testrun/886412/log
> 
> For the record the following tests failed on linux -next-20190823 on x86_64
> and i386. The filesystem is mounted on NFS and tests are using
> locally mounted hard drive ( with -d /scratch ).
> 
> Juno-r2 device filesystem mounted on NFS and did not see these errors
> and test getting pass on -next-20190823.
> 
> These failures are reproducible all time on next-20190823 kernel on x86_64
> and i386 device with root mounted on NFS [3] [4] [5] [6].
> 
> I will git bisect to find out which is bad commit.
> 
> prot_hsymlinks: [3]
> ------------------
> useradd: failure while writing changes to /etc/passwd
> useradd: /home/hsym was created, but could not be removed
> userdel: user 'hsym' does not exist
> prot_hsymlinks    1  TBROK  :  prot_hsymlinks.c:325: Failed to run
> cmd: useradd hsym
> prot_hsymlinks    2  TBROK  :  prot_hsymlinks.c:325: Remaining cases broken
> prot_hsymlinks    3  TBROK  :  prot_hsymlinks.c:325: Failed to run
> cmd: userdel -r hsym
> prot_hsymlinks    4  TBROK  :  tst_sig.c:234: unexpected signal
> SIGIOT/SIGABRT(6) received (pid = 8324).
> 
> logrotate01: [4]
> -------------
> compressing log with: /bin/gzip
> error: error creating temp state file /var/lib/logrotate.status.tmp:
> Input/output error
> logrotate01    1  TFAIL  :  ltpapicmd.c:154: Test #1: logrotate
> command exited with 1 return code. Output:
> 
> sem_unlink_2-2: [5]
> ------------------
> make[3]: Entering directory
> '/opt/ltp/testcases/open_posix_testsuite/conformance/interfaces/sem_unlink'
> cat: write error: Input/output error
> conformance/interfaces/sem_unlink/sem_unlink_2-2: execution: FAILED
> 
> syslog{01 ...10} [6]
> -------------------
> cp: failed to close '/etc/syslog.conf.ltpback': Input/output error
> syslog01    1  TBROK  :  ltpapicmd.c:188: failed to backup /etc/syslog.conf
> 
> cp: failed to close '/etc/syslog.conf.ltpback': Input/output error
> syslog02    1  TBROK  :  ltpapicmd.c:188: failed to backup /etc/syslog.conf
> 
> ...
> cp: failed to close '/etc/syslog.conf.ltpback': Input/output error
> syslog10    1  TBROK  :  ltpapicmd.c:188: failed to backup /etc/syslog.conf
> 
> ref:
> PASS on 20190222:
> [1] https://lkft.validation.linaro.org/scheduler/job/890446#L1232
> [2] https://lkft.validation.linaro.org/scheduler/job/890454
> 
> FAILED on 20190823:
> [3] https://lkft.validation.linaro.org/scheduler/job/890404#L1245
> [4] https://lkft.validation.linaro.org/scheduler/job/886408#L2544
> [5] https://lkft.validation.linaro.org/scheduler/job/886409#L3088
> [6] https://lkft.validation.linaro.org/scheduler/job/890400#L1234
> 
>  - Naresh
> 



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