linux-ext4 - Re: [Bug 216529] New: [fstests generic/048] BUG: Kernel NULL pointer dereference at 0x00000069, filemap_release

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Message-ID: <YzEySPNMuIcfsda9@mit.edu>
Date:   Mon, 26 Sep 2022 01:02:00 -0400
From:   "Theodore Ts'o" <tytso@....edu>
To:     bugzilla-daemon@...nel.org
Cc:     linux-ext4@...r.kernel.org,
        "Ritesh Harjani (IBM)" <ritesh.list@...il.com>
Subject: Re: [Bug 216529] New: [fstests generic/048] BUG: Kernel NULL pointer
 dereference at 0x00000069, filemap_release_folio+0x88/0xb0

On Sun, Sep 25, 2022 at 11:55:29AM +0000, bugzilla-daemon@...nel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=216529
> 
> 
> Hit a panic on ppc64le, by running generic/048 with 1k block size:

Hmm, does this reproduce reliably for you?  I test with a 1k block
size on x86_64 as a proxy 4k block sizes on PPC64, where the blocksize
< pagesize... and this isn't reproducing for me on x86, and I don't
have access to a PPC64LE system.

Ritesh, is this something you can take a look at it?  Thanks!

	   		      	       - Ted