linux-kernel - Re: [syzbot] [mm?] INFO: task hung in __unmap_and

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Date: Sun, 09 Jun 2024 23:41:03 -0700
From: syzbot <syzbot+b7ad168b779385f8cd58@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, hdanton@...a.com, jack@...e.cz, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org, liushixin2@...wei.com, syzkaller-bugs@...glegroups.com, 
	tujinjiang@...wei.com, willy@...radead.org
Subject: Re: [syzbot] [mm?] INFO: task hung in __unmap_and_move (4)

syzbot suspects this issue was fixed by commit:

commit 0fd44ab213bcfb26c47eedaa0985e4b5dbf0a494
Author: Liu Shixin <liushixin2@...wei.com>
Date:   Fri Mar 22 09:35:54 2024 +0000

    mm/readahead: break read-ahead loop if filemap_add_folio return -ENOMEM

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10fabe96980000
start commit:   72a85e2b0a1e Merge tag 'spi-fix-v6.2-rc1' of git://git.ker..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=4db06888b17328d6
dashboard link: https://syzkaller.appspot.com/bug?extid=b7ad168b779385f8cd58
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=143d0688480000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=154e3cac480000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: mm/readahead: break read-ahead loop if filemap_add_folio return -ENOMEM

For information about bisection process see: https://goo.gl/tpsmEJ#bisection