linux-kernel - Re: [PATCH 0/1] Possible bug in zram on ppc64le on vfat

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Message-ID: <e61e2dd0-3ce6-e849-8ce8-2b9aeb236c69@suse.cz>
Date:   Tue, 2 May 2023 17:23:59 +0200
From:   Martin Doucha <mdoucha@...e.cz>
To:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Petr Vorel <pvorel@...e.cz>
Cc:     Minchan Kim <minchan@...nel.org>, ltp@...ts.linux.it,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, Nitin Gupta <ngupta@...are.org>,
        Jens Axboe <axboe@...nel.dk>,
        OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
        Yang Xu <xuyang2018.jy@...itsu.com>
Subject: Re: [PATCH 0/1] Possible bug in zram on ppc64le on vfat

On 29. 11. 22 5:38, Sergey Senozhatsky wrote:
> On (22/11/22 16:07), Petr Vorel wrote:
>> Martin, thanks a lot for reruning tests. I wonder problems on /dev/zero is a
>> kernel bug or just problem which should be workarounded.
> 
> Hmm. Does CONFIG_KASAN show anything interesting?

Sorry for the delay. We've tried to reproduce the bug with CONFIG_KASAN 
enabled but the only affected arch is PPC64LE and KASAN is not available 
there at all. Our kernel maintainers confirmed that if we need KASAN to 
debug this, we're out of luck.

-- 
Martin Doucha   mdoucha@...e.cz
QA Engineer for Software Maintenance
SUSE LINUX, s.r.o.
CORSO IIa
Krizikova 148/34
186 00 Prague 8
Czech Republic