linux-ext4 - Re: ltp-syscalls/ioctl04: sysfs: cannot create duplicate filename '/kernel/slab/:a-0000176'

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Message-ID: <CA+G9fYsLZeFtoA6-7CWpezAuCBMLq6jS-=XQMFKPHrypBP+KfA@mail.gmail.com>
Date: Sun, 17 Nov 2024 12:01:36 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: open list <linux-kernel@...r.kernel.org>, linux-fsdevel@...r.kernel.org, 
	linux-ext4 <linux-ext4@...r.kernel.org>, lkft-triage@...ts.linaro.org, 
	Linux Regressions <regressions@...ts.linux.dev>, "Theodore Ts'o" <tytso@....edu>, 
	Andreas Dilger <adilger.kernel@...ger.ca>, Arnd Bergmann <arnd@...db.de>, 
	Linus Torvalds <torvalds@...ux-foundation.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Sasha Levin <sashal@...nel.org>, 
	Anders Roxell <anders.roxell@...aro.org>, Dan Carpenter <dan.carpenter@...aro.org>
Subject: Re: ltp-syscalls/ioctl04: sysfs: cannot create duplicate filename '/kernel/slab/:a-0000176'

On Sun, 17 Nov 2024 at 02:25, Vlastimil Babka <vbabka@...e.cz> wrote:
>
> On 11/16/24 17:50, Naresh Kamboju wrote:
> > The LTP syscalls ioctl04 and sequence test cases reported failures due
> > to following
> > reasons in the test log on the following environments on
> > sashal/linus-next.git tree.
> >  - qemu-x86_64
> >  - qemu-x86_64-compat
> >  - testing still in progress
> >
> > LTP test failed log:
> > ---------------
> > <4>[   70.931891] sysfs: cannot create duplicate filename
> > '/kernel/slab/:a-0000176'
> > ...
> > <0>[   70.969266] EXT4-fs: no memory for groupinfo slab cache
> > <3>[   70.970744] EXT4-fs (loop0): failed to initialize mballoc (-12)
> > <3>[   70.977680] EXT4-fs (loop0): mount failed
> > ioctl04.c:67: TFAIL: Mounting RO device RO failed: ENOMEM (12)
> >
> > First seen on commit sha id c12cd257292c0c29463aa305967e64fc31a514d8.
> >   Good: 7ff71d62bdc4828b0917c97eb6caebe5f4c07220
> >   Bad:  c12cd257292c0c29463aa305967e64fc31a514d8
> >   (not able to fetch these ^ commit ids now)
>
> The problem was in the slab tree not fs, sorry for the noise:
> https://lore.kernel.org/all/52be272d-009b-477b-9929-564f75208168%40suse.cz

The reported regressions have been fixed in latest commits on the
sashal/linus-next.git tree.

- Naresh