[LTP] shmctl01 failure // Was: Re: FAIL: Test report for kernel 5.1.0-8317cc1.cki (mainline.kernel.org)

[LTP] shmctl01 failure // Was: Re: FAIL: Test report for kernel 5.1.0-8317cc1.cki (mainline.kernel.org)

[Jan Stancek]

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----- Original Message -----
> 
> 
> ----- Original Message -----
> > Hello,
> > 
> > We ran automated tests on a recent commit from this kernel tree:
> > 
> >        Kernel repo:
> >        https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> >             Commit: 5ac94332248e - Merge tag 'for-linus' of
> >             git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
> > 
> > The results of these automated tests are provided below.
> > 
> >     Overall result: FAILED (see details below)
> >              Merge: OK
> >            Compile: OK
> >              Tests: FAILED
> > 
> > 
> > One or more kernel tests failed:
> > 
> >   x86_64:
> >     ❎ LTP lite
> 
>

cc LTP list

> Test fails on SHM_STAT:
>   shmctl01    5  TFAIL  :  shmctl01.c:173: shmctl01 call failed - errno = 22
>   : Invalid argument
>   shmctl(0, SHM_STAT, 0x601060)           = -EINVAL
> 
> Which likely started failing after:
>   commit 99db46ea292780cd978d56932d9445b1e8bdafe8
>   Author: Manfred Spraul <manfred@colorfullife.com>
>   Date:   Tue May 14 15:46:36 2019 -0700
>     ipc: do cyclic id allocation for the ipc object.
> 
> Per man page:
> "A successful IPC_INFO or SHM_INFO operation returns the index of the highest
> used entry
> in the kernel's internal array recording information about all shared memory
> segments.
> (This information can be used with repeated SHM_STAT or SHM_STAT_ANY
> operations to obtain
> information about all shared memory segments on the system.)"
> 
> Which however doesn't guarantee there won't be any gaps.
> I'm leaning towards updating test at the moment.
>